/* roulang page: index */
/* ============ 1. 设计变量 ============ */
:root{
  --ink:#0B2E2A;
  --ink-2:#12463F;
  --ink-deep:#071E1B;
  --lime:#D5F35C;
  --lime-dark:#C4E24A;
  --sand:#EDE7DA;
  --text:#12181A;
  --text-2:#55605F;
  --text-3:#8A9490;
  --bg:#FAF9F5;
  --card:#FFFFFF;
  --line:rgba(11,46,42,.10);
  --line-strong:rgba(11,46,42,.20);
  --coral:#FF6B4A;
  --r-lg:20px;
  --r-sm:14px;
  --r-img:16px;
  --r-badge:6px;
  --sh-1:0 1px 2px rgba(11,46,42,.06);
  --sh-2:0 8px 24px -16px rgba(11,46,42,.18);
  --sh-hover:0 20px 44px -22px rgba(11,46,42,.36);
  --ease:cubic-bezier(.22,.68,.32,1);
}
/* ============ 2. 基础重置 ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button{font-family:inherit;font-size:inherit;color:inherit;background:none;border:0;cursor:pointer}
time,.stat-num,.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:4px}
::selection{background:var(--lime);color:var(--ink)}
.grid-container{max-width:1200px;padding-left:20px;padding-right:20px;margin-left:auto;margin-right:auto}
@media (min-width:1440px){.grid-container{max-width:1280px}}
/* ============ 3. 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:15px 28px;border-radius:999px;
  font-size:16px;font-weight:700;line-height:1;
  border:1px solid transparent;cursor:pointer;position:relative;overflow:hidden;
  transition:background-color .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.btn-primary{background:var(--lime);color:var(--ink);box-shadow:0 8px 24px -16px rgba(11,46,42,.35)}
.btn-primary::after{
  content:"";position:absolute;top:0;bottom:0;left:0;width:38%;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.6),transparent);
  transform:translateX(-180%);transition:transform .32s ease;
}
.btn-primary:hover{background:var(--lime-dark)}
.btn-primary:hover::after{transform:translateX(360%)}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:rgba(11,46,42,.07)}
.btn-sm{min-height:40px;padding:11px 20px;font-size:14px}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--ink);position:relative;
}
.text-link::after{
  content:"";position:absolute;left:0;bottom:-3px;height:1px;width:100%;
  background:var(--ink);transform:scaleX(0);transform-origin:left;
  transition:transform .22s var(--ease);
}
.text-link:hover::after{transform:scaleX(1)}
.text-link .arrow{transition:transform .2s var(--ease)}
.text-link:hover .arrow{transform:translateX(4px)}
/* ============ 4. 徽章 / 标签 ============ */
.nav-badge{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 13px;border-radius:999px;
  border:1px solid rgba(213,243,92,.45);
  color:rgba(237,231,218,.9);font-size:13px;line-height:1;
  white-space:nowrap;
}
.nav-badge .dot{width:6px;height:6px;border-radius:50%;background:var(--lime);flex:0 0 auto}
.tag{
  display:inline-block;padding:4px 10px;border-radius:var(--r-badge);
  background:var(--sand);color:var(--ink);
  font-size:12px;font-weight:600;line-height:1.6;
}
.tag-lime{background:var(--lime);color:var(--ink)}
.tag-coral{background:rgba(255,107,74,.14);color:#D2451F}
/* ============ 5. 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--ink);
  background-image:linear-gradient(135deg,#0B2E2A 0%,#12463F 100%);
  border-bottom:1px solid rgba(255,255,255,.08);
  transition:background-color .25s ease;
}
.nav-inner{
  display:flex;align-items:center;gap:24px;
  min-height:76px;transition:min-height .25s var(--ease);
}
.nav-brand{display:inline-flex;align-items:center;gap:11px;flex:0 0 auto}
.nav-brand__mark{
  width:34px;height:34px;border-radius:10px;background:var(--lime);
  position:relative;flex:0 0 auto;
  box-shadow:0 6px 18px -10px rgba(213,243,92,.7);
}
.nav-brand__mark::before{
  content:"";position:absolute;left:11px;top:8px;width:12px;height:18px;
  border:3px solid var(--ink);border-right-color:transparent;border-radius:3px;
}
.nav-brand__mark::after{
  content:"";position:absolute;right:8px;bottom:8px;width:7px;height:7px;
  background:var(--ink);border-radius:2px;
}
.nav-brand__text{color:#F6F5EF;font-size:18px;font-weight:700;letter-spacing:.01em;white-space:nowrap}
.nav-channel{display:flex;align-items:center;gap:28px;margin-left:auto}
.nav-channel__item{
  position:relative;color:rgba(237,231,218,.82);
  font-size:15px;font-weight:500;padding:6px 0;white-space:nowrap;
  transition:color .2s var(--ease);
}
.nav-channel__item::after{
  content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;
  background:var(--lime);transform:scaleX(0);transform-origin:left;
  transition:transform .22s var(--ease);
}
.nav-channel__item:hover{color:#F6F5EF}
.nav-channel__item.is-active{color:#F6F5EF;font-weight:600}
.nav-channel__item.is-active::after{transform:scaleX(1)}
.nav-side{display:flex;align-items:center;gap:14px;flex:0 0 auto}
.nav-toggle{
  display:none;width:44px;height:44px;flex:0 0 auto;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
  border-radius:10px;border:1px solid rgba(255,255,255,.2);
}
.nav-toggle span{display:block;width:18px;height:2px;background:#F6F5EF;transition:transform .24s var(--ease),opacity .2s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.is-scrolled .nav-inner{min-height:62px}
@media (min-width:1025px){
  @supports (backdrop-filter:blur(8px)){
    .is-scrolled .site-header{background-image:linear-gradient(135deg,rgba(11,46,42,.94) 0%,rgba(18,70,63,.94) 100%);backdrop-filter:blur(8px)}
  }
}
/* ============ 6. Hero ============ */
.hero{
  position:relative;overflow:hidden;
  background:var(--ink);
  background-image:linear-gradient(135deg,#0B2E2A 0%,#12463F 100%);
  color:#F6F5EF;
  padding:76px 0 84px;
}
.hero::before{
  content:"";position:absolute;left:-10%;top:-30%;width:55%;height:120%;
  background:radial-gradient(circle at center,rgba(213,243,92,.12),transparent 62%);
  pointer-events:none;
}
.hero-grid{position:relative;z-index:2;align-items:center}
.hero-copy{padding-bottom:12px}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.06em;
  color:var(--lime);margin-bottom:20px;
}
.hero-eyebrow::before{content:"";width:22px;height:1px;background:var(--lime);display:block}
.hero-title{
  font-size:clamp(38px,5.4vw,66px);
  font-weight:800;line-height:1.08;letter-spacing:-.02em;
  color:#F8F7F1;margin-bottom:22px;max-width:14em;
}
.hero-sub{font-size:17px;line-height:1.75;color:rgba(237,231,218,.78);max-width:30em;margin-bottom:32px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:32px}
.hero-actions .btn-ghost{border-color:rgba(237,231,218,.5);color:#F6F5EF}
.hero-actions .btn-ghost:hover{background:rgba(237,231,218,.12)}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px}
.hero-badges li{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:999px;
  border:1px solid rgba(237,231,218,.24);
  font-size:13px;color:rgba(237,231,218,.88);line-height:1;
}
.hero-badges li i{width:6px;height:6px;border-radius:50%;background:var(--lime);flex:0 0 auto}
.hero-media{position:relative}
.hero-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-lg);
  border:1px solid rgba(237,231,218,.16);
}
.hero-media::after{
  content:"";position:absolute;inset:0;border-radius:var(--r-lg);
  background:rgba(11,46,42,.08);pointer-events:none;
}
.hero-media__card{
  position:absolute;left:-14px;bottom:24px;
  background:#FDFCF8;color:var(--text);
  border-radius:var(--r-sm);padding:14px 18px;
  box-shadow:0 20px 44px -22px rgba(0,0,0,.55);
  min-width:186px;
}
.hero-media__card strong{display:block;font-size:22px;font-weight:800;line-height:1.2;color:var(--ink);font-variant-numeric:tabular-nums}
.hero-media__card span{font-size:12px;color:var(--text-3)}
/* ============ 7. 通用板块 ============ */
.section{padding:96px 0}
.section-sand{background:var(--sand)}
.section-ink{background:var(--ink);background-image:linear-gradient(135deg,#0B2E2A 0%,#12463F 100%);color:#F6F5EF}
.section-head{margin-bottom:44px}
.section-head--split{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}
.section-title{font-size:clamp(26px,3.4vw,40px);font-weight:700;line-height:1.24;letter-spacing:-.01em;color:var(--ink)}
.section-ink .section-title{color:#F8F7F1}
.section-desc{margin-top:14px;font-size:16px;line-height:1.85;color:var(--text-2);max-width:44em}
.section-ink .section-desc{color:rgba(237,231,218,.74)}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:.08em;
  color:#4F7A32;background:rgba(213,243,92,.32);
  padding:6px 12px;border-radius:999px;margin-bottom:16px;
}
.section-ink .eyebrow{background:rgba(213,243,92,.16);color:var(--lime)}
/* ============ 8. 卖点非对称栅格 ============ */
.feature-grid .cell{margin-bottom:24px}
.feat-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px;height:100%;box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.feat-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(11,46,42,.3)}
.feat-card--main{
  background:var(--ink);background-image:linear-gradient(135deg,#0B2E2A 0%,#12463F 100%);
  border-color:transparent;color:#F6F5EF;
  display:flex;flex-direction:column;justify-content:space-between;
  min-height:330px;
}
.feat-card--main .feat-num{font-size:clamp(56px,7vw,88px);font-weight:800;line-height:1;color:var(--lime);letter-spacing:-.03em}
.feat-card--main h3{font-size:26px;font-weight:700;margin:22px 0 14px;color:#F8F7F1}
.feat-card--main p{font-size:15px;line-height:1.85;color:rgba(237,231,218,.76);max-width:30em}
.feat-card--tall{min-height:230px}
.feat-card--short{min-height:186px}
.feat-icon{
  width:44px;height:44px;border-radius:12px;background:var(--sand);
  display:flex;align-items:center;justify-content:center;margin-bottom:18px;
}
.feat-icon i{display:block;width:16px;height:16px;border:2.5px solid var(--ink);border-radius:4px}
.feat-card h3{font-size:20px;font-weight:600;line-height:1.45;margin-bottom:12px;color:var(--ink)}
.feat-card p{font-size:15px;line-height:1.85;color:var(--text-2)}
.feat-list{margin-top:16px}
.feat-list li{position:relative;padding-left:18px;font-size:14px;color:var(--text-2);line-height:1.9}
.feat-list li::before{content:"";position:absolute;left:0;top:12px;width:6px;height:6px;border-radius:50%;background:var(--lime)}
/* ============ 9. 场景步骤时间线 ============ */
.scene-wrap{display:grid;grid-template-columns:1.05fr 1fr;gap:48px;align-items:start}
.scene-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-lg)}
.scene-figure figcaption{margin-top:14px;font-size:13px;color:var(--text-3);text-align:center}
.scene-steps{position:relative;padding-left:6px}
.scene-step{
  position:relative;padding:0 0 34px 34px;
}
.scene-step:last-child{padding-bottom:0}
.scene-step::before{
  content:"";position:absolute;left:0;top:14px;width:10px;height:10px;border-radius:50%;
  background:var(--lime);border:2px solid var(--ink);z-index:2;
}
.scene-step::after{
  content:"";position:absolute;left:4px;top:26px;bottom:0;width:1px;background:var(--sand);
}
.scene-step:last-child::after{display:none}
.scene-step .num{
  font-size:34px;font-weight:800;line-height:1;color:var(--ink);
  letter-spacing:-.02em;display:block;margin-bottom:10px;
}
.scene-step h3{font-size:20px;font-weight:600;color:var(--ink);margin-bottom:8px}
.scene-step p{font-size:15px;line-height:1.85;color:var(--text-2);max-width:34em}
/* ============ 10. 最新信息 / 资讯列表 ============ */
.section-news .section-head--split{align-items:center}
.news-grid{margin-bottom:-24px}
.news-grid > .cell{margin-bottom:24px}
.news-card{
  height:100%;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(11,46,42,.3)}
.news-card__link{display:flex;flex-direction:column;height:100%}
.news-card__media{overflow:hidden;background:var(--sand)}
.news-card__media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .22s var(--ease)}
.news-card:hover .news-card__media img{transform:scale(1.04)}
.news-card__body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.news-card__title{
  font-size:18px;font-weight:600;line-height:1.5;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card__desc{
  font-size:14px;line-height:1.8;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card__time{margin-top:auto;font-size:13px;color:var(--text-3)}
.empty-state{
  min-height:240px;border:1px dashed var(--line-strong);border-radius:var(--r-lg);
  background-image:url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;
  position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;text-align:center;padding:32px 20px;overflow:hidden;
}
.empty-state::before{content:"";position:absolute;inset:0;background:rgba(250,249,245,.92)}
.empty-state > *{position:relative;z-index:2}
.empty-state p{font-size:15px;color:var(--text-2)}
/* ============ 11. 社会认同 ============ */
.stat-band{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
  padding:34px 0 44px;border-bottom:1px solid rgba(237,231,218,.18);margin-bottom:48px;
}
.stat-item span{display:block;font-size:13px;color:rgba(237,231,218,.68);margin-bottom:8px}
.stat-num{
  font-size:clamp(44px,5vw,64px);font-weight:800;line-height:1;color:var(--lime);
  letter-spacing:-.03em;
}
.stat-num small{font-size:22px;font-weight:700;margin-left:4px}
.review-grid .cell{margin-bottom:24px}
.review-card{
  height:100%;background:rgba(237,231,218,.07);
  border:1px solid rgba(237,231,218,.18);
  border-radius:var(--r-lg);padding:26px 26px 22px;
  display:flex;flex-direction:column;gap:16px;
}
.review-card .quote{
  font-size:40px;line-height:1;color:var(--lime);font-weight:800;opacity:.85;
}
.review-card p{font-size:15px;line-height:1.85;color:rgba(237,231,218,.86);flex:1}
.review-source{font-size:13px;color:rgba(237,231,218,.56);border-top:1px solid rgba(237,231,218,.14);padding-top:14px}
/* ============ 12. FAQ ============ */
.faq-accordion{display:grid;gap:14px;max-width:920px}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-sm);
  overflow:hidden;transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.faq-item[open]{border-color:rgba(11,46,42,.28);box-shadow:var(--sh-2)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 56px 20px 22px;
  font-size:17px;font-weight:600;line-height:1.6;color:var(--ink);position:relative;
  transition:color .2s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"";position:absolute;right:22px;top:50%;
  width:16px;height:2px;background:var(--ink);transform:translateY(-50%);
  transition:transform .24s var(--ease),background-color .2s ease;
}
.faq-item summary::before{
  content:"";position:absolute;right:29px;top:50%;
  width:2px;height:16px;background:var(--ink);transform:translateY(-50%);
  transition:transform .24s var(--ease),opacity .2s ease;
}
.faq-item[open] summary::before{transform:translateY(-50%) scaleY(0);opacity:0}
.faq-item summary:hover{color:#0F3C36}
.faq-answer{padding:0 22px 22px;font-size:15px;line-height:1.85;color:var(--text-2);max-width:70em}
/* ============ 13. 页脚前转化段 ============ */
.final-cta{text-align:center;padding:104px 0}
.final-cta h2{font-size:clamp(28px,3.6vw,44px);font-weight:700;line-height:1.28;color:var(--ink);margin-bottom:16px}
.final-cta p{font-size:16px;line-height:1.85;color:var(--text-2);max-width:36em;margin:0 auto 34px}
/* ============ 14. 页脚 ============ */
.site-footer{
  background:var(--ink);background-image:linear-gradient(135deg,#0B2E2A 0%,#12463F 100%);
  color:rgba(237,231,218,.8);padding:72px 0 0;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:52px}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:18px}
.footer-brand .nav-brand__mark{width:30px;height:30px;border-radius:9px}
.footer-brand .nav-brand__mark::before{left:10px;top:7px;width:10px;height:16px;border-width:3px}
.footer-brand .nav-brand__mark::after{right:7px;bottom:7px;width:6px;height:6px}
.footer-brand__text{font-size:17px;font-weight:700;color:#F6F5EF}
.footer-about{font-size:14px;line-height:1.9;color:rgba(237,231,218,.68);max-width:26em}
.footer-col h3{font-size:14px;font-weight:700;color:#F6F5EF;margin-bottom:18px;letter-spacing:.04em}
.footer-col li{margin-bottom:12px}
.footer-col a{font-size:14px;color:rgba(237,231,218,.72);transition:color .2s var(--ease)}
.footer-col a:hover{color:var(--lime)}
.footer-bottom{
  border-top:1px solid rgba(237,231,218,.14);
  padding:22px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(237,231,218,.56);
}
/* ============ 15. 底部固定转化条 ============ */
.bottom-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:#FDFCF8;border-top:1px solid var(--line);
  box-shadow:0 -8px 24px -18px rgba(11,46,42,.5);
  padding-bottom:env(safe-area-inset-bottom);
  transform:translateY(120%);opacity:0;visibility:hidden;
  transition:transform .3s var(--ease),opacity .3s var(--ease),visibility .3s;
}
.bottom-cta.is-visible{transform:none;opacity:1;visibility:visible}
.bottom-cta__inner{display:flex;align-items:center;gap:16px;min-height:64px;padding-top:8px;padding-bottom:8px}
.bottom-cta__text{font-size:15px;font-weight:600;color:var(--ink);flex:1;line-height:1.4}
.bottom-cta__close{
  width:36px;height:36px;border-radius:10px;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;
  font-size:20px;line-height:1;color:var(--text-3);
  border:1px solid var(--line);transition:background-color .2s ease,color .2s ease;
}
.bottom-cta__close:hover{background:var(--sand);color:var(--ink)}
body.has-bar{padding-bottom:88px}
/* ============ 16. 入场动效 ============ */
.js .reveal{
  opacity:0;transform:translateY(16px);
  transition:opacity .48s var(--ease) var(--d,0s),transform .48s var(--ease) var(--d,0s);
}
.js .reveal.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important}
  .js .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}
/* ============ 17. 响应式 ============ */
@media (max-width:1024px){
  .nav-channel{
    position:fixed;left:0;right:0;top:62px;bottom:0;
    margin-left:0;flex-direction:column;align-items:flex-start;gap:0;
    padding:16px 20px 40px;overflow-y:auto;
    background:var(--ink);background-image:linear-gradient(135deg,#0B2E2A 0%,#12463F 100%);
    border-top:1px solid rgba(255,255,255,.1);
    opacity:0;visibility:hidden;transform:translateY(-12px);
    transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s;
  }
  .nav-channel.is-open{opacity:1;visibility:visible;transform:none}
  .nav-channel__item{width:100%;padding:16px 2px;font-size:17px;border-bottom:1px solid rgba(255,255,255,.08)}
  .nav-channel__item::after{display:none}
  .nav-channel__item.is-active{color:var(--lime)}
  .nav-toggle{display:flex}
  .nav-side .nav-badge{display:none}
  .nav-side{margin-left:auto}
  .hero{padding:56px 0 64px}
  .hero-media{margin-top:36px}
  .hero-media__card{left:16px;bottom:16px}
  .section{padding:72px 0}
  .scene-wrap{grid-template-columns:1fr;gap:36px}
  .stat-band{grid-template-columns:repeat(2,1fr);gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .final-cta{padding:80px 0}
}
@media (max-width:768px){
  .hero-title{max-width:none}
  .news-card__body{padding:18px 18px 22px}
  .feat-card{padding:24px}
  .feat-card--main{min-height:280px}
  .section-head{margin-bottom:32px}
  .stat-num{font-size:44px}
  .stat-num small{font-size:18px}
}
@media (max-width:639px){
  body{font-size:15.5px}
  .hero{padding:44px 0 56px}
  .hero-title{font-size:34px;line-height:1.14}
  .hero-sub{font-size:15.5px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .hero-badges{gap:8px}
  .hero-badges li{font-size:12px;padding:7px 11px}
  .section{padding:52px 0}
  .scene-step{padding-left:26px}
  .scene-step .num{font-size:28px}
  .stat-band{grid-template-columns:1fr 1fr;gap:22px;padding:24px 0 32px;margin-bottom:34px}
  .stat-num{font-size:38px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-bottom{flex-direction:column;gap:8px}
  .final-cta{padding:64px 0}
  .bottom-cta__text{font-size:14px}
  body.has-bar{padding-bottom:96px}
}

/* roulang page: article */
:root{
  --ink:#0B2E2A;
  --ink-deep:#071E1B;
  --ink-mid:#12463F;
  --lime:#D5F35C;
  --sand:#EDE7DA;
  --text:#12181A;
  --muted:#55605F;
  --weak:#8A9490;
  --bg:#FAF9F5;
  --card:#FFFFFF;
  --line:rgba(11,46,42,.10);
  --line-mid:rgba(11,46,42,.22);
  --coral:#FF6B4A;
  --r-lg:20px;
  --r-md:14px;
  --r-sm:6px;
  --r-btn:999px;
  --sh-1:0 1px 2px rgba(11,46,42,.06);
  --sh-2:0 8px 24px -16px rgba(11,46,42,.18);
  --sh-3:0 20px 44px -22px rgba(11,46,42,.36);
  --s1:12px; --s2:20px; --s3:32px;
  --sec:96px;
  --f-cn:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  --f-num:"Barlow","Inter",-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--f-cn);
  font-size:16.5px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  padding-bottom:0;
}
body.has-bottom-cta{padding-bottom:96px}
img{max-width:100%;display:block}
a{color:var(--ink);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--ink-deep)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-0.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
::selection{background:var(--lime);color:var(--ink)}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:4px}

.grid-container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media screen and (min-width:1024px){.grid-container{padding:0 32px}}
@media screen and (min-width:1440px){.grid-container{max-width:1280px}}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(250,249,245,.94);
  border-bottom:1px solid var(--line);
  transition:padding .24s ease,box-shadow .24s ease,background .24s ease;
}
@supports (backdrop-filter:blur(8px)){
  .site-header{backdrop-filter:blur(8px)}
}
.site-header.is-scrolled{box-shadow:0 6px 22px -20px rgba(11,46,42,.6)}
.nav-inner{display:flex;align-items:center;gap:24px;padding:16px 0;transition:padding .24s ease}
.site-header.is-scrolled .nav-inner{padding:9px 0}
.nav-brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-brand__mark{
  width:30px;height:30px;border-radius:9px;background:var(--lime);
  position:relative;display:inline-block;flex:0 0 auto;
}
.nav-brand__mark::after{
  content:"";position:absolute;inset:9px 9px 9px 9px;
  background:var(--ink);border-radius:4px;
  clip-path:polygon(0 0,100% 0,100% 100%,50% 68%,0 100%);
}
.nav-brand__text{font-size:18px;font-weight:700;color:var(--ink);letter-spacing:-.02em;white-space:nowrap}
.nav-channel{display:flex;align-items:center;gap:28px;margin-left:12px;flex:1 1 auto}
.nav-channel__item{
  font-size:15px;color:var(--muted);position:relative;padding:6px 0;white-space:nowrap;
}
.nav-channel__item::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--lime);
  transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.nav-channel__item:hover{color:var(--ink)}
.nav-channel__item:hover::after{transform:scaleX(1)}
.nav-channel__item.is-active{color:var(--ink);font-weight:600}
.nav-channel__item.is-active::after{transform:scaleX(1)}
.nav-side{display:flex;align-items:center;gap:14px;margin-left:auto;flex:0 0 auto}
.nav-badge{
  display:inline-flex;align-items:center;gap:7px;
  font-size:13px;color:var(--muted);
  border:1px solid var(--line-mid);border-radius:var(--r-btn);
  padding:6px 12px;white-space:nowrap;background:#fff;
}
.nav-badge .dot{width:7px;height:7px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 3px rgba(213,243,92,.28)}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line-mid);background:#fff;
  border-radius:12px;cursor:pointer;padding:0;align-items:center;justify-content:center;
  flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .24s ease,opacity .24s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:16px;font-weight:700;line-height:1;
  padding:14px 28px;border-radius:var(--r-btn);border:1px solid transparent;
  cursor:pointer;position:relative;overflow:hidden;
  transition:background .22s ease,color .22s ease,transform .22s ease,border-color .22s ease,box-shadow .22s ease;
  min-height:44px;
}
.btn::before{
  content:"";position:absolute;top:0;bottom:0;left:-40%;width:35%;
  background:linear-gradient(90deg,rgba(255,255,255,0),rgba(255,255,255,.5),rgba(255,255,255,0));
  transform:translateX(-120%);transition:transform .32s ease;
}
.btn:hover::before{transform:translateX(320%)}
.btn-primary{background:var(--lime);color:var(--ink)}
.btn-primary:hover{background:#C9EB46;color:var(--ink)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line-mid)}
.btn-ghost:hover{border-color:var(--ink);background:#fff}
.btn-sm{font-size:14px;padding:10px 18px;min-height:40px}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--ink);
  position:relative;padding-bottom:2px;
}
.btn-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:var(--lime);
  transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.btn-link:hover::after{transform:scaleX(1)}
.btn-link i{transition:transform .22s ease}
.btn-link:hover i{transform:translateX(4px)}

/* ---------- 面包屑 ---------- */
.breadcrumb{padding:24px 0 0}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--weak)}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";color:var(--line-mid)}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--ink)}
.breadcrumb [aria-current="page"]{color:var(--weak)}

/* ---------- 文章头部 ---------- */
.article-head{padding:22px 0 40px;border-bottom:1px solid var(--line)}
.article-head__kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);
  background:var(--sand);border-radius:var(--r-btn);padding:6px 14px;margin-bottom:18px;
}
.article-head__kicker i{color:var(--ink)}
.article-head h1{
  font-size:clamp(30px,4.2vw,48px);font-weight:800;line-height:1.15;letter-spacing:-.02em;
  max-width:900px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;
  margin-top:22px;font-size:13.5px;color:var(--weak);
}
.article-meta .tag{
  display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--ink);
  background:var(--lime);border-radius:var(--r-sm);padding:4px 10px;font-weight:600;
}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:7px}
.article-meta time,.article-meta .num{font-family:var(--f-num);font-variant-numeric:tabular-nums}

/* ---------- 正文布局 ---------- */
.article-section{padding:52px 0 var(--sec)}
.article-layout{gap:0}
.article-main{min-width:0}
.article-figure{margin:0 0 36px;border-radius:var(--r-lg);overflow:hidden;position:relative;background:var(--sand)}
.article-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;margin:0}
.article-figure::after{content:"";position:absolute;inset:0;background:rgba(11,46,42,.08);pointer-events:none}
.article-figure figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:14px 18px;font-size:13px;color:#F3F0E7;
  background:linear-gradient(180deg,rgba(7,30,27,0),rgba(7,30,27,.72));
}
.article-body{max-width:760px;font-size:17.5px;line-height:1.9;color:var(--text)}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 1.1em}
.article-body h2{
  font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.3;
  margin:2.4em 0 .8em;padding-left:14px;position:relative;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;border-radius:3px;background:var(--lime);
}
.article-body h3{font-size:20px;font-weight:600;margin:1.8em 0 .6em;line-height:1.4}
.article-body h4{font-size:17.5px;font-weight:600;margin:1.4em 0 .5em;color:var(--muted)}
.article-body a{color:var(--ink);border-bottom:1px solid var(--lime);font-weight:600}
.article-body a:hover{color:var(--ink-deep)}
.article-body strong{color:var(--ink)}
.article-body ul{padding-left:0;margin:0 0 1.2em}
.article-body ul>li{position:relative;padding-left:24px;margin:.45em 0}
.article-body ul>li::before{
  content:"";position:absolute;left:4px;top:.72em;width:7px;height:7px;border-radius:2px;
  background:var(--lime);border:1px solid rgba(11,46,42,.35);
}
.article-body ol{counter-reset:abl;padding-left:0;margin:0 0 1.2em}
.article-body ol>li{position:relative;padding-left:40px;margin:.5em 0;counter-increment:abl}
.article-body ol>li::before{
  content:counter(abl);position:absolute;left:0;top:.15em;width:26px;height:26px;border-radius:50%;
  background:var(--ink);color:var(--sand);font-size:13px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--f-num);font-variant-numeric:tabular-nums;
}
.article-body blockquote{
  margin:1.6em 0;padding:18px 22px;background:var(--sand);
  border-left:3px solid var(--lime);border-radius:0 var(--r-md) var(--r-md) 0;color:var(--muted);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:12px;margin:1.6em auto;max-width:100%}
.article-body figure{margin:1.6em 0}
.article-body figcaption{font-size:13px;color:var(--weak);text-align:center;margin-top:10px}
.article-body table{
  display:block;width:100%;overflow-x:auto;border-collapse:collapse;font-size:15px;margin:1.6em 0;
  -webkit-overflow-scrolling:touch;
}
.article-body thead th{
  background:var(--ink);color:#F3F0E7;text-align:left;padding:12px 14px;font-weight:600;white-space:nowrap;
}
.article-body thead th:first-child{border-radius:var(--r-md) 0 0 0}
.article-body thead th:last-child{border-radius:0 var(--r-md) 0 0}
.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);white-space:nowrap}
.article-body tbody tr:nth-child(even){background:#FBF8F1}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.2em 0}

.empty-state{
  border:1px dashed var(--line-mid);border-radius:var(--r-lg);background:#fff;
  padding:56px 28px;text-align:center;min-height:240px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  position:relative;overflow:hidden;
}
.empty-state::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  opacity:.08;
}
.empty-state strong{position:relative;font-size:20px;color:var(--ink)}
.empty-state p{position:relative;color:var(--muted);font-size:15px}
.empty-state .btn-link{position:relative}

/* ---------- 侧栏 ---------- */
.article-side{padding-left:0}
@media screen and (min-width:1025px){
  .article-side{padding-left:24px}
}
.side-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px 24px;box-shadow:var(--sh-2);
}
@media screen and (min-width:1025px){
  .side-card{position:sticky;top:96px}
}
.side-card h2{font-size:18px;font-weight:700;margin-bottom:6px}
.side-card .side-note{font-size:13.5px;color:var(--weak);margin-bottom:18px}
.related-list li+li{border-top:1px solid var(--sand)}
.related-list li{padding:14px 0}
.related-list h3{font-size:16px;font-weight:600;margin-bottom:6px;line-height:1.5}
.related-list h3 a{color:var(--ink)}
.related-list h3 a:hover{color:var(--ink-deep)}
.related-list p{font-size:13.5px;color:var(--muted);line-height:1.7;margin-bottom:8px}
.side-return{margin-top:20px;padding-top:18px;border-top:1px solid var(--sand)}

/* ---------- 返回与入口 ---------- */
.article-return{
  max-width:760px;margin-top:36px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px 26px;align-items:center;font-size:14px;color:var(--weak);
}
.entry-section{padding:0 0 var(--sec)}
.entry-section .section-head{margin-bottom:34px;max-width:720px}
.entry-section .section-head h2{font-size:clamp(24px,3vw,34px);font-weight:700;margin-bottom:12px}
.entry-section .section-head p{color:var(--muted);font-size:15.5px}
.entry-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.entry-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--sh-1);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  display:flex;flex-direction:column;
}
.entry-card:hover{transform:translateY(-4px);box-shadow:var(--sh-3);border-color:rgba(11,46,42,.3)}
.entry-card__media{overflow:hidden;background:var(--sand)}
.entry-card__media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .22s ease}
.entry-card:hover .entry-card__media img{transform:scale(1.04)}
.entry-card__body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.entry-card__body h3{font-size:19px;font-weight:600}
.entry-card__body p{font-size:14.5px;color:var(--muted);line-height:1.75;flex:1 1 auto}

/* ---------- 转化段 ---------- */
.convert-band{
  background:linear-gradient(135deg,#0B2E2A 0%,#12463F 100%);
  border-radius:var(--r-lg);padding:56px 40px;text-align:center;color:#EDE7DA;
}
.convert-band h2{color:#fff;font-size:clamp(24px,3vw,34px);font-weight:700;margin-bottom:14px}
.convert-band p{color:rgba(237,231,218,.82);font-size:15.5px;max-width:620px;margin:0 auto 26px}
.convert-band .btn-primary{box-shadow:0 14px 34px -20px rgba(213,243,92,.9)}

/* ---------- 页脚 ---------- */
.site-footer{
  background:linear-gradient(135deg,#0B2E2A 0%,#071E1B 100%);
  color:rgba(237,231,218,.8);padding:72px 0 26px;margin-top:0;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand__text{font-size:18px;font-weight:700;color:#fff;letter-spacing:-.02em}
.footer-about{font-size:14px;line-height:1.85;color:rgba(237,231,218,.72);max-width:340px}
.footer-col h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:14px}
.footer-col ul li{margin-bottom:10px}
.footer-col a{font-size:14px;color:rgba(237,231,218,.72)}
.footer-col a:hover{color:var(--lime)}
.footer-bottom{
  margin-top:48px;padding-top:20px;border-top:1px solid rgba(237,231,218,.16);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:rgba(237,231,218,.56);
  font-family:var(--f-num);font-variant-numeric:tabular-nums;
}

/* ---------- 底部固定转化条 ---------- */
.bottom-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:#fff;border-top:1px solid var(--line);
  box-shadow:0 -10px 26px -20px rgba(11,46,42,.75);
  padding:10px 16px calc(10px + env(safe-area-inset-bottom));
  display:flex;align-items:center;gap:14px;
  transform:translateY(130%);transition:transform .32s cubic-bezier(.22,.68,.32,1);
}
.bottom-cta.is-visible{transform:translateY(0)}
.bottom-cta__text{font-size:14.5px;color:var(--ink);font-weight:600;flex:1 1 auto;line-height:1.4}
.bottom-cta__close{
  width:40px;height:40px;flex:0 0 auto;border:1px solid var(--line);background:#fff;border-radius:12px;
  color:var(--muted);cursor:pointer;font-size:16px;line-height:1;
}
.bottom-cta__close:hover{color:var(--ink);border-color:var(--line-mid)}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .48s cubic-bezier(.22,.68,.32,1),transform .48s cubic-bezier(.22,.68,.32,1)}
.reveal.is-in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1024px){
  .nav-channel{
    position:fixed;top:0;right:0;bottom:0;width:308px;max-width:86vw;
    background:var(--ink);flex-direction:column;align-items:flex-start;gap:0;
    padding:96px 28px 32px;margin-left:0;
    transform:translateX(105%);transition:transform .24s ease;overflow-y:auto;z-index:80;
  }
  .nav-channel.is-open{transform:translateX(0)}
  .nav-channel__item{
    width:100%;font-size:17px;color:rgba(237,231,218,.86);padding:16px 0;
    border-bottom:1px solid rgba(237,231,218,.14);
  }
  .nav-channel__item:hover,.nav-channel__item.is-active{color:#fff}
  .nav-channel__item::after{display:none}
  .nav-toggle{display:inline-flex}
  .nav-badge{display:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media screen and (max-width:768px){
  :root{--sec:72px}
  .article-section{padding:40px 0 72px}
  .article-body{font-size:17px}
  .entry-grid{grid-template-columns:1fr;gap:20px}
  .convert-band{padding:40px 22px}
}
@media screen and (max-width:639px){
  :root{--sec:52px}
  body{font-size:16px}
  .nav-inner{gap:12px}
  .nav-brand__text{font-size:16.5px}
  .nav-cta{display:none}
  .article-head h1{font-size:27px}
  .article-body h2{margin-top:2em}
  .article-body table{font-size:14px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px}
  .bottom-cta{padding:9px 14px calc(9px + env(safe-area-inset-bottom))}
  .bottom-cta__text{font-size:13.5px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category1 */
:root{
  --ink:#0B2E2A;
  --ink-deep:#071E1B;
  --ink-soft:#12463F;
  --lime:#D5F35C;
  --lime-dark:#C7E848;
  --sand:#EDE7DA;
  --text:#12181A;
  --muted:#55605F;
  --weak:#8A9490;
  --bg:#FAF9F5;
  --card:#FFFFFF;
  --line:rgba(11,46,42,.10);
  --coral:#FF6B4A;
  --r-lg:20px;
  --r-sm:14px;
  --r-img:16px;
  --r-badge:6px;
  --sh-1:0 1px 2px rgba(11,46,42,.06);
  --sh-2:0 8px 24px -16px rgba(11,46,42,.18);
  --sh-3:0 20px 44px -22px rgba(11,46,42,.36);
  --sp-1:12px;
  --sp-2:20px;
  --sp-3:32px;
  --font-cn:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Helvetica Neue",sans-serif;
  --font-num:"Space Grotesk","SFMono-Regular",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  transition:padding-bottom .24s ease;
}
body.cta-visible{padding-bottom:84px}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
p{line-height:1.85}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px}
::selection{background:var(--lime);color:var(--ink)}

/* Foundation 覆盖 */
body,p,h1,h2,h3,h4,li,a,button,input{font-family:var(--font-cn)}
.grid-container{max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
.grid-x.grid-margin-x{margin-left:-12px;margin-right:-12px}
.grid-x.grid-margin-x>.cell{padding-left:12px;padding-right:12px}
.grid-x.grid-margin-y{margin-top:-12px;margin-bottom:-12px}
.grid-x.grid-margin-y>.cell{padding-top:12px;padding-bottom:12px}
.button,.btn{background:none;color:inherit}
.accordion,.tabs{border:0;background:transparent}

/* 通用容器与板块 */
.section{padding:96px 0}
.section--sand{background:var(--sand)}
.section--paper{background:#fff}
.section-head{max-width:760px;margin-bottom:44px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.08em;
  color:var(--ink);text-transform:uppercase;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--lime);border-radius:2px}
.section-head h2{
  font-size:clamp(26px,3.4vw,40px);
  font-weight:700;line-height:1.2;letter-spacing:-.01em;
  margin-top:14px;color:var(--text);
}
.section-head p{margin-top:16px;color:var(--muted);font-size:16.5px;max-width:640px}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:14px 28px;border-radius:999px;
  font-size:16px;font-weight:700;line-height:1;
  position:relative;overflow:hidden;isolation:isolate;
  transition:background-color .22s ease,color .22s ease,box-shadow .22s ease,transform .22s ease,border-color .22s ease;
}
.btn-sm{padding:10px 20px;font-size:14.5px;min-height:40px}
.btn-primary{background:var(--lime);color:var(--ink)}
.btn-primary::after{
  content:"";position:absolute;top:0;bottom:0;left:-30%;width:40%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.75),transparent);
  transform:translateX(-180%);transition:transform .32s ease;z-index:-1;
}
.btn-primary:hover{background:var(--lime-dark);box-shadow:0 10px 24px -14px rgba(11,46,42,.6)}
.btn-primary:hover::after{transform:translateX(360%)}
.btn-ghost{border:1px solid rgba(11,46,42,.3);color:var(--ink);border-radius:10px;background:transparent}
.btn-ghost:hover{background:rgba(11,46,42,.06);border-color:var(--ink)}
.btn-ghost--light{border-color:rgba(237,231,218,.45);color:var(--sand)}
.btn-ghost--light:hover{background:rgba(237,231,218,.12);border-color:var(--sand)}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--ink);position:relative;
}
.link-arrow i{transition:transform .22s ease}
.link-arrow::after{
  content:"";position:absolute;left:0;bottom:-3px;height:1px;width:100%;
  background:currentColor;transform:scaleX(0);transform-origin:left;
  transition:transform .22s ease;
}
.link-arrow:hover::after{transform:scaleX(1)}
.link-arrow:hover i{transform:translateX(4px)}

/* 标签与徽章 */
.badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:999px;
  border:1px solid rgba(237,231,218,.35);
  color:rgba(237,231,218,.92);font-size:13px;font-weight:500;
  backdrop-filter:blur(2px);
}
.badge--solid{background:var(--sand);border-color:transparent;color:var(--ink)}
.dot{width:7px;height:7px;border-radius:50%;background:var(--lime);display:inline-block;flex:0 0 auto}
.tag{
  display:inline-flex;align-items:center;
  padding:4px 10px;border-radius:var(--r-badge);
  background:var(--sand);color:var(--ink);
  font-size:12.5px;font-weight:600;letter-spacing:.02em;
}
.tag--lime{background:var(--lime);color:var(--ink)}
.tag--coral{background:rgba(255,107,74,.12);color:#B23A22}

/* 站点头部 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--ink);
  background-image:linear-gradient(135deg,#0B2E2A 0%,#12463F 100%);
  border-bottom:1px solid rgba(237,231,218,.12);
  transition:box-shadow .24s ease,background-color .24s ease;
}
.site-header.is-shrunk{box-shadow:0 10px 30px -22px rgba(0,0,0,.75);backdrop-filter:blur(8px)}
.site-header.is-shrunk .nav-inner{padding-top:9px;padding-bottom:9px}
.nav-inner{
  display:flex;align-items:center;gap:24px;
  padding-top:16px;padding-bottom:16px;
  transition:padding .24s ease;
}
.nav-brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-brand__mark{
  width:28px;height:28px;border-radius:9px;background:var(--lime);
  position:relative;flex:0 0 auto;
  box-shadow:inset 0 0 0 1px rgba(11,46,42,.18);
}
.nav-brand__mark::after{
  content:"";position:absolute;inset:8px;
  background:var(--ink);border-radius:3px;transform:rotate(45deg);
}
.nav-brand__text{font-size:18px;font-weight:700;color:#fff;letter-spacing:.01em;white-space:nowrap}
.nav-channel{display:flex;align-items:center;gap:28px;margin:0 auto}
.nav-channel__item{
  position:relative;padding:8px 0;font-size:15px;
  color:rgba(237,231,218,.82);white-space:nowrap;
  transition:color .2s ease;
}
.nav-channel__item:hover{color:#fff}
.nav-channel__item.is-active{color:#fff;font-weight:600}
.nav-channel__item.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  border-radius:2px;background:var(--lime);
}
.nav-side{display:flex;align-items:center;gap:16px;flex:0 0 auto}
.nav-badge{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 13px;border-radius:999px;
  border:1px solid rgba(237,231,218,.3);
  color:rgba(237,231,218,.9);font-size:13px;white-space:nowrap;
}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
  border:1px solid rgba(237,231,218,.25);
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--sand);border-radius:2px;transition:transform .24s ease,opacity .24s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.nav-mask{
  position:fixed;inset:0;background:rgba(7,30,27,.55);
  opacity:0;visibility:hidden;transition:opacity .24s ease;z-index:65;
}
.nav-mask.is-open{opacity:1;visibility:visible}

/* 面包屑 */
.breadcrumb{padding:22px 0 0}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--weak)}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";color:rgba(11,46,42,.25)}
.breadcrumb a{color:var(--muted);transition:color .2s ease}
.breadcrumb a:hover{color:var(--ink)}
.breadcrumb [aria-current="page"]{color:var(--ink);font-weight:600}

/* 分类页 Hero */
.cat-hero{position:relative;overflow:hidden;background:var(--ink)}
.cat-hero__bg{position:absolute;inset:0;z-index:0}
.cat-hero__bg img{width:100%;height:100%;object-fit:cover;opacity:.4}
.cat-hero__bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(11,46,42,.95) 0%,rgba(18,70,63,.78) 100%);
}
.cat-hero__inner{position:relative;z-index:1;max-width:860px;padding:76px 0 92px;color:var(--sand)}
.cat-hero .eyebrow{color:var(--lime)}
.cat-hero .eyebrow::before{background:var(--lime)}
.cat-hero h1{
  margin-top:18px;color:#fff;
  font-size:clamp(34px,4.6vw,58px);
  font-weight:800;line-height:1.1;letter-spacing:-.02em;
}
.cat-hero__lead{
  margin-top:22px;max-width:660px;
  font-size:17px;line-height:1.9;color:rgba(237,231,218,.84);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.badge-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}

/* 核对卡片（非对称） */
.check-grid{margin-top:8px}
.check-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px;height:100%;box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.check-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(11,46,42,.3)}
.check-card h3{font-size:20px;font-weight:600;margin-bottom:12px}
.check-card p{font-size:15.5px;color:var(--muted)}
.check-card--lead{
  background:var(--ink);
  background-image:linear-gradient(135deg,#0B2E2A 0%,#12463F 100%);
  border-color:transparent;color:var(--sand);
  display:flex;flex-direction:column;justify-content:space-between;
  min-height:280px;
}
.check-card--lead h3{color:#fff;font-size:22px}
.check-card--lead p{color:rgba(237,231,218,.78)}
.check-num{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:clamp(44px,6vw,64px);font-weight:700;line-height:1;
  color:var(--lime);letter-spacing:-.03em;
}
.check-num small{font-size:15px;font-weight:600;color:rgba(237,231,218,.7);margin-left:8px;letter-spacing:0}
.check-ico{
  width:40px;height:40px;border-radius:11px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(213,243,92,.22);color:var(--ink);font-size:17px;margin-bottom:18px;
}

/* 图文左右交替 */
.split-row{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split-row+.split-row{margin-top:88px}
.split-row--rev .split-row__media{order:2}
.split-row__media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-lg);box-shadow:var(--sh-2);
}
.split-row__body h3{font-size:22px;font-weight:600;line-height:1.35;margin-bottom:16px}
.split-row__body p{color:var(--muted);font-size:16px}
.list-check{margin-top:22px;display:grid;gap:14px}
.list-check li{position:relative;padding-left:30px;font-size:15.5px;color:var(--text)}
.list-check li::before{
  content:"";position:absolute;left:0;top:8px;width:15px;height:15px;
  border-radius:5px;background:var(--lime);border:1px solid rgba(11,46,42,.22);
}
.list-check li::after{
  content:"";position:absolute;left:5px;top:12px;width:5px;height:8px;
  border:2px solid var(--ink);border-top:0;border-left:0;transform:rotate(42deg);
}

/* 时间线 */
.steps{position:relative;padding-left:38px;margin-top:12px}
.steps::before{
  content:"";position:absolute;left:11px;top:10px;bottom:10px;width:2px;
  background:var(--sand);border-radius:2px;
}
.step{position:relative;padding-bottom:38px}
.step:last-child{padding-bottom:0}
.step::before{
  content:"";position:absolute;left:-33px;top:6px;
  width:14px;height:14px;border-radius:50%;
  background:var(--lime);border:3px solid var(--bg);
  box-shadow:0 0 0 2px rgba(11,46,42,.14);
}
.step__num{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:13px;font-weight:700;letter-spacing:.12em;
  color:var(--weak);
}
.step__title{font-size:20px;font-weight:600;margin-top:6px}
.step__desc{margin-top:8px;max-width:660px;color:var(--muted);font-size:15.5px}

/* 入口矩阵 */
.entry-grid{margin-top:8px}
.entry-card{
  display:flex;flex-direction:column;height:100%;overflow:hidden;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.entry-card:hover{transform:translateY(-4px);box-shadow:var(--sh-3);border-color:rgba(11,46,42,.3)}
.entry-card__media{overflow:hidden;background:var(--sand)}
.entry-card__media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  transition:transform .22s ease;
}
.entry-card:hover .entry-card__media img{transform:scale(1.04)}
.entry-card__body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.entry-card__body h3{font-size:18px;font-weight:600}
.entry-card__body p{font-size:14.5px;color:var(--muted)}
.entry-card__link{margin-top:auto;padding-top:8px}

/* 页脚前转化段 */
.bottom-cta{padding:112px 0;background:#fff;text-align:center}
.bottom-cta h2{
  font-size:clamp(26px,3.4vw,40px);font-weight:700;
  line-height:1.2;letter-spacing:-.01em;
}
.bottom-cta p{margin:18px auto 34px;max-width:520px;color:var(--muted);font-size:16.5px}

/* 底部固定转化条 */
.fixed-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:rgba(250,249,245,.98);
  border-top:1px solid var(--line);
  box-shadow:0 -8px 26px -20px rgba(11,46,42,.5);
  transform:translateY(112%);
  transition:transform .28s ease;
  padding-bottom:env(safe-area-inset-bottom,0);
}
.fixed-cta.is-show{transform:translateY(0)}
.fixed-cta__inner{display:flex;align-items:center;gap:14px;padding:12px 0}
.fixed-cta__text{font-size:14.5px;color:var(--muted);flex:1 1 auto}
.fixed-cta__close{
  width:44px;height:44px;border-radius:50%;flex:0 0 auto;
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--weak);border:1px solid var(--line);
  transition:background-color .2s ease,color .2s ease;
}
.fixed-cta__close:hover{background:var(--sand);color:var(--ink)}

/* 页脚 */
.site-footer{
  background:var(--ink);
  background-image:linear-gradient(135deg,#0B2E2A 0%,#12463F 100%);
  color:rgba(237,231,218,.8);
}
.footer-grid{
  display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:44px;
  padding:76px 0 44px;
}
.footer-brand{display:flex;align-items:center;gap:10px}
.footer-brand__text{font-size:18px;font-weight:700;color:#fff}
.footer-about{margin-top:18px;max-width:360px;font-size:14.5px;line-height:1.85;color:rgba(237,231,218,.72)}
.footer-col h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:18px}
.footer-col li+li{margin-top:11px}
.footer-col a{font-size:14.5px;color:rgba(237,231,218,.78);transition:color .2s ease}
.footer-col a:hover{color:var(--lime)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  padding:22px 0 30px;border-top:1px solid rgba(237,231,218,.16);
  font-size:13px;color:rgba(237,231,218,.55);
}

/* 入场动效 */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .48s cubic-bezier(.22,.68,.32,1),transform .48s cubic-bezier(.22,.68,.32,1)}
.reveal.is-in{opacity:1;transform:none}

/* 断点：≤1024 */
@media (max-width:1024px){
  .section{padding:72px 0}
  .grid-container{max-width:100%}
  .nav-toggle{display:inline-flex}
  .nav-badge{display:none}
  .nav-channel{
    position:fixed;top:0;right:0;z-index:80;
    width:min(330px,86vw);height:100%;
    flex-direction:column;align-items:flex-start;gap:0;
    padding:96px 28px 32px;margin:0;
    background:var(--ink);
    background-image:linear-gradient(160deg,#0B2E2A 0%,#071E1B 100%);
    transform:translateX(103%);
    transition:transform .24s ease;
    overflow-y:auto;
  }
  .nav-channel.is-open{transform:translateX(0)}
  .nav-channel__item{
    width:100%;padding:15px 0;font-size:16px;
    border-bottom:1px solid rgba(237,231,218,.12);
  }
  .nav-channel__item.is-active::after{left:0;right:auto;width:26px}
  .nav-cta{display:none}
  .cat-hero__inner{padding:60px 0 72px}
  .split-row{gap:36px}
  .split-row+.split-row{margin-top:64px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;padding:60px 0 36px}
}
@media (min-width:1025px){
  .grid-container{max-width:1280px;padding-left:32px;padding-right:32px}
}
@media (min-width:1440px){
  .grid-container{max-width:1280px}
}

/* 断点：≤768 */
@media (max-width:768px){
  .split-row{grid-template-columns:1fr;gap:26px}
  .split-row--rev .split-row__media{order:0}
  .split-row__media img{aspect-ratio:16/10}
  .check-card{padding:22px}
}

/* 断点：≤639 */
@media (max-width:639px){
  .section{padding:52px 0}
  body{font-size:15.5px}
  .nav-brand__text{font-size:16px}
  .cat-hero__inner{padding:48px 0 58px}
  .cat-hero h1{font-size:clamp(30px,8.4vw,40px)}
  .cat-hero__lead{font-size:15.5px}
  .hero-actions .btn{width:100%}
  .badge-row{gap:8px}
  .badge{font-size:12.5px;padding:6px 12px}
  .steps{padding-left:30px}
  .steps::before{left:9px}
  .step::before{left:-29px;width:13px;height:13px}
  .footer-grid{grid-template-columns:1fr;gap:30px;padding:52px 0 30px}
  .footer-bottom{flex-direction:column;gap:6px}
  .bottom-cta{padding:68px 0}
  .fixed-cta__inner{padding:10px 0;gap:10px;min-height:64px}
  .fixed-cta__text{font-size:13.5px}
  body.cta-visible{padding-bottom:96px}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.001ms !important;animation-duration:.001ms !important;scroll-behavior:auto !important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category2 */
:root{
  --ink:#0B2E2A;
  --ink-deep:#071E1B;
  --ink-soft:#12463F;
  --lime:#D5F35C;
  --lime-deep:#C8EA48;
  --sand:#EDE7DA;
  --text:#12181A;
  --muted:#55605F;
  --weak:#8A9490;
  --bg:#FAF9F5;
  --card:#FFFFFF;
  --line:rgba(11,46,42,.10);
  --line-strong:rgba(11,46,42,.30);
  --coral:#FF6B4A;
  --warm-white:#F6F4EE;
  --r-lg:20px;
  --r-md:14px;
  --r-sm:10px;
  --sh-1:0 1px 2px rgba(11,46,42,.06);
  --sh-2:0 8px 24px -16px rgba(11,46,42,.18);
  --sh-3:0 20px 44px -22px rgba(11,46,42,.36);
  --font:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --gutter:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  padding-bottom:100px;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none;transition:color .22s ease}
button{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.2;color:var(--ink);font-weight:700}
p{margin:0}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:4px}
::selection{background:var(--lime);color:var(--ink)}

/* 容器 */
.grid-container{max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
@media (min-width:1025px){.grid-container{padding-left:32px;padding-right:32px}}
@media (min-width:1440px){.grid-container{max-width:1280px}}

/* 按钮 */
.btn{
  position:relative;display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:999px;border:1px solid transparent;
  font-size:16px;font-weight:700;line-height:1;cursor:pointer;overflow:hidden;
  transition:background .22s ease,color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease;
  white-space:nowrap;
}
.btn::after{
  content:"";position:absolute;top:0;left:-70%;width:45%;height:100%;
  background:linear-gradient(90deg,rgba(255,255,255,0),rgba(255,255,255,.55),rgba(255,255,255,0));
  transform:skewX(-18deg);transition:left .32s ease;pointer-events:none;
}
.btn:hover::after{left:130%}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--lime);color:var(--ink);box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--lime-deep);box-shadow:var(--sh-2)}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--ink)}
.btn-ghost:hover{border-color:var(--ink);background:rgba(11,46,42,.05)}
.btn-ghost-light{background:transparent;border-color:rgba(246,244,238,.45);color:var(--warm-white)}
.btn-ghost-light:hover{border-color:var(--lime);color:var(--lime)}
.btn-sm{padding:10px 20px;font-size:14px}
.btn-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--ink);
  border-bottom:1px solid transparent;padding-bottom:2px;position:relative;
}
.link-arrow::after{content:"→";transition:transform .22s ease}
.link-arrow:hover{color:var(--ink-deep)}
.link-arrow:hover::after{transform:translateX(4px)}

/* 头部导航 */
.site-header{
  position:sticky;top:0;z-index:80;background:rgba(250,249,245,.98);
  border-bottom:1px solid var(--line);transition:box-shadow .26s ease,background .26s ease;
}
.site-header.is-scrolled{background:rgba(250,249,245,.92);box-shadow:var(--sh-2);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}
.nav-inner{display:flex;align-items:center;gap:20px;height:78px;transition:height .26s ease}
.site-header.is-scrolled .nav-inner{height:64px}
.nav-brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;font-size:18px;font-weight:700;color:var(--ink);letter-spacing:-.01em}
.nav-brand__mark{position:relative;width:30px;height:30px;border-radius:9px;background:var(--lime);flex:0 0 auto}
.nav-brand__mark::after{
  content:"";position:absolute;top:9px;left:11px;width:0;height:0;
  border-top:6px solid transparent;border-bottom:6px solid transparent;border-left:9px solid var(--ink);
}
.nav-channel{display:flex;align-items:center;gap:28px;margin-left:auto;margin-right:auto}
.nav-channel__item{
  position:relative;display:inline-flex;align-items:center;height:44px;
  font-size:15px;color:var(--muted);transition:color .22s ease;
}
.nav-channel__item::after{
  content:"";position:absolute;left:0;right:auto;bottom:6px;height:2px;width:0;background:var(--lime);
  transition:width .22s ease;
}
.nav-channel__item:hover{color:var(--ink)}
.nav-channel__item:hover::after{width:100%}
.nav-channel__item.is-active{color:var(--ink);font-weight:600}
.nav-channel__item.is-active::after{width:100%}
.nav-side{display:flex;align-items:center;gap:14px;flex:0 0 auto}
.nav-badge{
  display:inline-flex;align-items:center;gap:8px;padding:7px 14px;border-radius:999px;
  border:1px solid var(--line);font-size:13px;color:var(--muted);white-space:nowrap;
}
.dot{width:6px;height:6px;border-radius:50%;background:var(--lime);display:inline-block;flex:0 0 auto}
.nav-badge .dot{background:var(--coral)}
.nav-toggle{
  display:none;width:44px;height:44px;padding:0;border:1px solid var(--line);border-radius:var(--r-sm);
  background:#fff;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;margin:3px auto;background:var(--ink);transition:transform .24s ease,opacity .24s ease}

/* 面包屑 */
.breadcrumb{padding:24px 0 0}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:rgba(246,244,238,.72)}
.breadcrumb li{display:inline-flex;align-items:center;gap:10px}
.breadcrumb li+li::before{content:"/";color:rgba(246,244,238,.4)}
.breadcrumb a:hover{color:var(--lime)}
.breadcrumb [aria-current="page"]{color:var(--warm-white)}

/* Hero */
.cat-hero{
  position:relative;overflow:hidden;
  background:linear-gradient(135deg,#0B2E2A 0%,#12463F 100%);
  color:var(--warm-white);padding:0 0 84px;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  opacity:.08;pointer-events:none;
}
.cat-hero .grid-container{position:relative;z-index:2}
.cat-hero__row{margin-top:36px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.06em;
  color:var(--lime);text-transform:uppercase;font-weight:600;
}
.cat-hero h1{
  font-size:clamp(32px,4.4vw,54px);font-weight:800;line-height:1.1;letter-spacing:-.02em;
  color:#fff;margin:16px 0 20px;max-width:15em;
}
.cat-hero__lead{font-size:17px;line-height:1.85;color:rgba(246,244,238,.86);max-width:34em}
.badge-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.badge{
  display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:6px;
  border:1px solid rgba(246,244,238,.28);font-size:13px;color:rgba(246,244,238,.92);
  font-variant-numeric:tabular-nums;
}
.cat-hero__media{position:relative}
.cat-hero__media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:20px;
  box-shadow:0 24px 48px -24px rgba(0,0,0,.6);
}
.cat-hero__media::after{
  content:"";position:absolute;inset:0;border-radius:20px;background:rgba(11,46,42,.08);pointer-events:none;
}
@media (max-width:1023px){
  .cat-hero__media{margin-top:36px}
  .cat-hero{padding-bottom:64px}
}

/* 板块 */
.section{padding:96px 0}
.section--sand{background:var(--sand)}
.section--plain{background:var(--bg)}
.section-head{margin-bottom:40px;max-width:760px}
.section-head h2{font-size:clamp(26px,3.4vw,40px);font-weight:700;letter-spacing:-.01em}
.section-sub{margin-top:12px;color:var(--muted);font-size:16px}
.section-head--split{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none;flex-wrap:wrap}
@media (max-width:1024px){.section{padding:72px 0}}
@media (max-width:639px){.section{padding:52px 0}}

/* 规格清单 */
.spec-list{margin:0;border-top:1px solid var(--line);background:var(--card);border-radius:var(--r-lg);padding:6px 24px;box-shadow:var(--sh-1)}
.spec-item{display:flex;align-items:baseline;justify-content:space-between;gap:20px;padding:16px 0;border-bottom:1px solid var(--line)}
.spec-list .spec-item:last-child{border-bottom:0}
.spec-item dt{color:var(--muted);font-size:15px;flex:0 0 auto}
.spec-item dd{margin:0;font-weight:600;color:var(--ink);text-align:right;font-variant-numeric:tabular-nums;font-size:15px}
.spec-item dd em{font-style:normal;color:var(--weak);font-weight:400;font-size:13px;margin-left:8px}

/* 图文卡片 */
.media-card{position:relative;margin:0;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2);background:var(--card)}
.media-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.media-card figcaption{padding:18px 22px;font-size:14px;color:var(--muted);background:var(--card)}
.media-stack{display:grid;gap:20px}

/* 表格 */
.table-wrap{
  overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--line);
  border-radius:var(--r-lg);background:var(--card);box-shadow:var(--sh-1);
}
.cat-table{min-width:660px;font-size:15px}
.cat-table th{
  background:var(--ink);color:var(--warm-white);font-weight:600;font-size:14px;
  text-align:left;padding:16px 20px;white-space:nowrap;
}
.cat-table td{padding:16px 20px;border-top:1px solid var(--line);color:var(--text)}
.cat-table tbody tr:nth-child(even){background:#F3F1EA}
.cat-table td.num{font-variant-numeric:tabular-nums;color:var(--ink);font-weight:600;white-space:nowrap}
.cat-table td:first-child{color:var(--muted);white-space:nowrap}
.table-note{margin-top:14px;font-size:13px;color:var(--weak)}

/* 步骤时间线 */
.cat-steps{position:relative;padding-left:0}
.cat-steps::before{content:"";position:absolute;left:19px;top:14px;bottom:22px;width:2px;background:var(--sand)}
.cat-step{position:relative;padding:0 0 30px 64px}
.cat-step:last-child{padding-bottom:0}
.cat-step__num{
  position:absolute;left:0;top:0;width:40px;height:40px;border-radius:50%;
  background:var(--lime);color:var(--ink);font-weight:800;font-size:14px;
  display:flex;align-items:center;justify-content:center;font-variant-numeric:tabular-nums;
}
.cat-step h3{font-size:20px;font-weight:600;margin-bottom:8px}
.cat-step p{color:var(--muted);font-size:15.5px;line-height:1.8;max-width:36em}

/* FAQ */
.faq-accordion{border:1px solid var(--line);border-radius:var(--r-lg);background:var(--card);overflow:hidden;box-shadow:var(--sh-1)}
.faq-item+.faq-item{border-top:1px solid var(--line)}
.faq-item__q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 24px;background:none;border:0;text-align:left;cursor:pointer;
  font-size:17px;font-weight:600;color:var(--ink);line-height:1.5;
}
.faq-item__q:hover{color:var(--ink-deep)}
.faq-item__icon{position:relative;width:18px;height:18px;flex:0 0 auto}
.faq-item__icon::before,.faq-item__icon::after{
  content:"";position:absolute;background:var(--ink);transition:transform .24s ease,opacity .24s ease;
}
.faq-item__icon::before{left:0;top:8px;width:18px;height:2px}
.faq-item__icon::after{top:0;left:8px;width:2px;height:18px}
.faq-item.is-open .faq-item__icon::after{transform:scaleY(0)}
.faq-item__a{padding:0 24px 22px;color:var(--muted);font-size:15px;line-height:1.85;max-width:56em}
.js .faq-item__a{max-height:0;padding-top:0;padding-bottom:0;overflow:hidden;transition:max-height .28s ease,padding-bottom .28s ease}
.js .faq-item.is-open .faq-item__a{max-height:320px;padding-bottom:22px}

/* 入口矩阵 */
.cat-entry-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.entry-card{
  position:relative;display:block;padding:26px;border:1px solid var(--line);border-radius:var(--r-md);
  background:var(--card);box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.entry-card:hover{transform:translateY(-4px);box-shadow:var(--sh-3);border-color:var(--line-strong)}
.entry-card__tag{
  display:inline-block;font-size:12px;color:var(--ink);background:var(--sand);
  padding:4px 10px;border-radius:6px;margin-bottom:12px;
}
.entry-card h3{font-size:19px;font-weight:600;margin-bottom:8px}
.entry-card p{font-size:14.5px;color:var(--muted);line-height:1.75}
.entry-card__go{margin-top:16px;display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--ink)}
.entry-card__go::after{content:"→";transition:transform .22s ease}
.entry-card:hover .entry-card__go::after{transform:translateX(4px)}

/* 底部 CTA */
.bottom-cta{
  background:linear-gradient(135deg,#0B2E2A 0%,#12463F 100%);
  color:var(--warm-white);border-radius:24px;padding:56px 40px;text-align:center;
}
.bottom-cta h2{color:#fff;font-size:clamp(24px,3vw,34px);letter-spacing:-.01em}
.bottom-cta p{margin:16px auto 0;max-width:34em;color:rgba(246,244,238,.86);font-size:16px}
.bottom-cta .btn-row{justify-content:center}

/* 页脚 */
.site-footer{
  background:linear-gradient(135deg,#0B2E2A 0%,#071E1B 100%);
  color:rgba(246,244,238,.8);padding:72px 0 0;margin-top:0;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand__text{font-size:18px;font-weight:700;color:#fff}
.footer-about{font-size:14.5px;line-height:1.85;color:rgba(246,244,238,.68);max-width:30em}
.footer-col h3{font-size:15px;color:#fff;font-weight:600;margin-bottom:16px}
.footer-col ul{display:grid;gap:10px;font-size:14.5px}
.footer-col a{color:rgba(246,244,238,.72)}
.footer-col a:hover{color:var(--lime)}
.footer-bottom{
  margin-top:52px;padding:24px 0;border-top:1px solid rgba(246,244,238,.14);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(246,244,238,.6);
}

/* 底部固定转化条 */
.bottom-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:90;display:none;
  background:#FBFAF6;border-top:1px solid var(--line);
  box-shadow:0 -8px 24px -16px rgba(11,46,42,.35);
  padding-bottom:env(safe-area-inset-bottom);
}
.js .bottom-bar.is-visible{display:block}
.bottom-bar__inner{display:flex;align-items:center;gap:14px;min-height:64px;padding:8px 0}
.bottom-bar__text{font-size:14px;color:var(--muted);flex:1 1 auto;line-height:1.5}
.bottom-bar__close{
  width:36px;height:36px;flex:0 0 auto;border:1px solid var(--line);border-radius:50%;
  background:#fff;color:var(--muted);font-size:18px;line-height:1;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
}
.bottom-bar__close:hover{color:var(--ink);border-color:var(--line-strong)}

/* 响应式 */
@media (max-width:1024px){
  .nav-channel{
    position:fixed;left:0;right:0;top:64px;flex-direction:column;align-items:stretch;gap:0;
    margin:0;padding:10px 20px 22px;background:var(--ink);
    transform:translateY(-10px);opacity:0;visibility:hidden;transition:opacity .24s ease,transform .24s ease,visibility .24s;
    box-shadow:0 24px 40px -24px rgba(0,0,0,.6);
  }
  .nav-channel.is-open{opacity:1;visibility:visible;transform:translateY(0)}
  .nav-channel__item{
    height:52px;color:var(--warm-white);border-bottom:1px solid rgba(246,244,238,.12);font-size:16px;
  }
  .nav-channel__item::after{display:none}
  .nav-channel__item.is-active{color:var(--lime)}
  .nav-badge{display:none}
  .nav-toggle{display:block}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .cat-entry-grid{grid-template-columns:1fr}
  .bottom-cta{padding:44px 24px;border-radius:20px}
  .spec-list{padding:4px 18px}
  .spec-item{flex-direction:column;align-items:flex-start;gap:6px}
  .spec-item dd{text-align:left}
}
@media (max-width:639px){
  body{font-size:15.5px}
  .cat-hero h1{font-size:clamp(28px,8vw,36px);max-width:none}
  .site-header .nav-inner{height:64px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .faq-item__q{font-size:16px;padding:18px 18px}
  .faq-item__a{padding-left:18px;padding-right:18px}
  .btn{padding:13px 22px;font-size:15px}
}
@media (max-width:1023px){
  .js .bottom-bar{display:block}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: category3 */
:root{
  --ink:#0B2E2A;
  --ink-deep:#071E1B;
  --ink-mid:#12463F;
  --lime:#D5F35C;
  --sand:#EDE7DA;
  --text:#12181A;
  --muted:#55605F;
  --weak:#8A9490;
  --bg:#FAF9F5;
  --card:#FFFFFF;
  --line:rgba(11,46,42,.10);
  --coral:#FF6B4A;
  --r-lg:20px;
  --r-md:14px;
  --r-sm:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(11,46,42,.06);
  --sh-2:0 8px 24px -16px rgba(11,46,42,.18);
  --sh-3:0 20px 44px -22px rgba(11,46,42,.36);
  --sec:96px;
  --font:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color .2s ease;}
button{font-family:inherit;font-size:inherit;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;}
::selection{background:var(--lime);color:var(--ink);}

.grid-container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media (min-width:1025px){
  .grid-container{max-width:1280px;padding-left:32px;padding-right:32px;}
}

/* ---------- 通用区块 ---------- */
.section{padding:var(--sec) 0;}
.section--tight{padding:56px 0;}
.section--sand{background:var(--sand);}
.section--dark{background:linear-gradient(135deg,#0B2E2A 0%,#12463F 100%);color:#F3F1E9;}
.section__head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;}
.section__head h2{font-size:clamp(26px,3.4vw,40px);font-weight:700;line-height:1.18;letter-spacing:-.01em;}
.section__head p{margin-top:12px;color:var(--muted);font-size:15px;max-width:640px;}
.section--dark .section__head p{color:rgba(243,241,233,.72);}
.section__link{flex:0 0 auto;font-size:15px;font-weight:600;color:var(--ink);border-bottom:1px solid transparent;padding-bottom:2px;}
.section__link:hover{border-bottom-color:var(--ink);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.14em;
  text-transform:uppercase;color:var(--ink);opacity:.72;
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--lime);}
.lead{font-size:17px;color:var(--muted);max-width:660px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:14px 28px;border:1px solid transparent;
  border-radius:var(--r-pill);font-size:16px;font-weight:700;letter-spacing:.01em;
  transition:background .22s ease,color .22s ease,transform .22s ease,box-shadow .22s ease;
  position:relative;overflow:hidden;white-space:nowrap;
}
.btn::after{
  content:"";position:absolute;top:0;left:-120%;width:60%;height:100%;
  background:linear-gradient(100deg,rgba(255,255,255,0) 0%,rgba(255,255,255,.45) 50%,rgba(255,255,255,0) 100%);
  transition:left .32s ease;
}
.btn:hover::after{left:130%;}
.btn-primary{background:var(--lime);color:var(--ink);}
.btn-primary:hover{background:#C9EA4B;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-ghost{background:transparent;border-color:currentColor;color:var(--ink);}
.btn-ghost:hover{background:rgba(11,46,42,.06);transform:translateY(-2px);}
.section--dark .btn-ghost{color:#F3F1E9;}
.section--dark .btn-ghost:hover{background:rgba(243,241,233,.12);}
.btn-sm{min-height:40px;padding:10px 20px;font-size:14.5px;}
.btn-link{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:15px;color:var(--ink);border-bottom:1px solid transparent;padding-bottom:2px;}
.btn-link span{transition:transform .22s ease;}
.btn-link:hover{border-bottom-color:var(--ink);}
.btn-link:hover span{transform:translateX(4px);}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:var(--ink);
  color:#F3F1E9;
  border-bottom:1px solid rgba(237,231,218,.12);
  transition:background .24s ease,box-shadow .24s ease;
}
.site-header.is-shrink{
  background:rgba(11,46,42,.94);
  box-shadow:0 10px 30px -22px rgba(0,0,0,.8);
}
.nav-inner{display:flex;align-items:center;gap:28px;height:76px;transition:height .24s ease;}
.site-header.is-shrink .nav-inner{height:60px;}
.nav-brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.nav-brand__mark{
  width:26px;height:26px;border-radius:8px;
  background:var(--lime);
  position:relative;
  box-shadow:inset 0 0 0 1px rgba(11,46,42,.2);
}
.nav-brand__mark::after{
  content:"";position:absolute;inset:7px 6px 7px 9px;
  background:var(--ink);
  clip-path:polygon(0 0,100% 50%,0 100%);
}
.nav-brand__text{font-size:18px;font-weight:800;letter-spacing:.01em;color:#F7F5EE;}
.nav-channel{display:flex;align-items:center;gap:28px;margin-left:8px;}
.nav-channel__item{
  position:relative;font-size:15px;color:rgba(243,241,233,.8);
  padding:6px 0;transition:color .2s ease;
}
.nav-channel__item:hover{color:#fff;}
.nav-channel__item.is-active{color:var(--lime);}
.nav-channel__item.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--lime);border-radius:2px;
}
.nav-side{margin-left:auto;display:flex;align-items:center;gap:16px;}
.nav-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border:1px solid rgba(213,243,92,.45);
  border-radius:var(--r-pill);font-size:13px;color:var(--lime);white-space:nowrap;
}
.nav-badge .dot{width:6px;height:6px;border-radius:50%;background:var(--lime);}
.nav-toggle{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;padding:0 10px;
  background:transparent;border:1px solid rgba(243,241,233,.28);border-radius:var(--r-sm);
}
.nav-toggle span{display:block;height:2px;background:#F3F1E9;border-radius:2px;}

@media (max-width:1024px){
  .nav-channel{
    position:fixed;top:76px;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:0;
    margin:0;padding:12px 20px 28px;
    background:var(--ink);
    border-bottom:1px solid rgba(237,231,218,.14);
    transform:translateY(-12px);opacity:0;pointer-events:none;
    transition:opacity .24s ease,transform .24s ease;
    max-height:calc(100vh - 76px);overflow-y:auto;
  }
  .nav-channel.is-open{opacity:1;transform:none;pointer-events:auto;}
  .nav-channel__item{padding:15px 4px;border-bottom:1px solid rgba(243,241,233,.1);font-size:16px;}
  .nav-channel__item.is-active::after{display:none;}
  .nav-badge{display:none;}
  .nav-toggle{display:flex;}
  .nav-side{gap:10px;}
}

/* ---------- 面包屑 ---------- */
.breadcrumb{padding:22px 0 0;}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--weak);}
.breadcrumb li+li::before{content:"/";margin-right:8px;color:var(--weak);}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--ink);}
.breadcrumb [aria-current="page"]{color:var(--ink);font-weight:600;}

/* ---------- 分类 Hero ---------- */
.cat-hero{
  background:linear-gradient(135deg,#0B2E2A 0%,#12463F 100%);
  color:#F3F1E9;
  padding:28px 0 88px;
}
.cat-hero__media{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  aspect-ratio:16/9;background:#082420;
  box-shadow:0 30px 60px -40px rgba(0,0,0,.85);
}
.cat-hero__media img{width:100%;height:100%;object-fit:cover;}
.cat-hero__media::after{
  content:"";position:absolute;inset:0;background:rgba(11,46,42,.28);
}
.cat-hero__tag{
  position:absolute;left:20px;bottom:20px;z-index:2;
  padding:8px 16px;border-radius:var(--r-pill);
  background:rgba(11,46,42,.72);border:1px solid rgba(213,243,92,.4);
  color:var(--lime);font-size:13px;font-weight:600;letter-spacing:.04em;
}
.cat-hero__body{margin-top:44px;max-width:900px;}
.cat-hero__body h1{
  font-size:clamp(32px,4.6vw,58px);
  font-weight:800;line-height:1.1;letter-spacing:-.02em;
  margin:18px 0 0;
}
.cat-hero__body .lead{margin-top:20px;color:rgba(243,241,233,.8);font-size:17px;max-width:760px;}
.cat-hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.cat-hero__actions .btn-ghost{color:#F3F1E9;}
.badge-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;}
.badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 15px;border:1px solid rgba(243,241,233,.28);
  border-radius:var(--r-pill);font-size:13px;color:rgba(243,241,233,.86);
}
.badge i{width:6px;height:6px;border-radius:50%;background:var(--lime);display:block;}

/* ---------- 横向标签位 ---------- */
.tag-scroll{margin-top:-42px;position:relative;z-index:5;}
.tag-scroll__inner{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-2);padding:22px 24px 14px;
}
.tag-scroll__track{
  display:flex;gap:12px;overflow-x:auto;padding-bottom:10px;
  -webkit-overflow-scrolling:touch;scroll-snap-type:x proximity;
}
.tag-scroll__track::-webkit-scrollbar{height:5px;}
.tag-scroll__track::-webkit-scrollbar-thumb{background:rgba(11,46,42,.18);border-radius:4px;}
.tag{
  flex:0 0 auto;scroll-snap-align:start;
  padding:9px 18px;border:1px solid var(--line);border-radius:var(--r-pill);
  background:var(--bg);font-size:14px;color:var(--muted);
  transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.tag:hover{border-color:rgba(11,46,42,.32);color:var(--ink);background:#fff;}

/* ---------- 不等高卡片网格 ---------- */
.cat-cards{columns:2;column-gap:24px;}
.cat-card{
  break-inside:avoid;-webkit-column-break-inside:avoid;
  margin-bottom:24px;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.cat-card:hover{transform:translateY(-4px);border-color:rgba(11,46,42,.3);box-shadow:var(--sh-3);}
.cat-card__media{aspect-ratio:16/10;overflow:hidden;background:var(--sand);}
.cat-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.cat-card:hover .cat-card__media img{transform:scale(1.04);}
.cat-card__body{padding:24px 26px 26px;}
.cat-card__body h3{font-size:20px;font-weight:600;line-height:1.35;margin-bottom:10px;}
.cat-card__body p{color:var(--muted);font-size:15px;}
.cat-card--plain{background:var(--sand);border-color:transparent;}
.cat-card--plain .cat-card__body{padding:32px 28px 30px;}
.cat-card--plain .cat-card__body h3{font-size:22px;}
.cat-card__meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}
.chip{
  font-size:12.5px;padding:5px 12px;border-radius:var(--r-sm);
  background:rgba(11,46,42,.06);color:var(--muted);
}
.chip--lime{background:var(--lime);color:var(--ink);font-weight:600;}
@media (max-width:639px){
  .cat-cards{columns:1;}
}

/* ---------- 时间线 ---------- */
.steps{max-width:820px;margin:0 auto;position:relative;padding-left:36px;}
.steps::before{content:"";position:absolute;left:9px;top:10px;bottom:14px;width:2px;background:linear-gradient(180deg,var(--lime),rgba(213,243,92,.28));}
.steps__item{position:relative;padding:0 0 34px 0;}
.steps__item:last-child{padding-bottom:0;}
.steps__item::before{
  content:"";position:absolute;left:-33px;top:8px;width:12px;height:12px;border-radius:50%;
  background:var(--lime);border:2px solid var(--ink);
}
.steps__num{
  font-size:13px;font-weight:700;letter-spacing:.12em;color:var(--ink);opacity:.6;
  font-variant-numeric:tabular-nums;
}
.steps__item h3{font-size:19px;font-weight:600;margin:6px 0 8px;}
.steps__item p{color:var(--muted);font-size:15.5px;max-width:640px;}

/* ---------- 折叠面板 ---------- */
.acc{max-width:900px;margin:0 auto;}
.acc__item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  margin-bottom:14px;overflow:hidden;transition:border-color .22s ease,box-shadow .22s ease;
}
.acc__item.is-open{border-color:rgba(11,46,42,.3);box-shadow:var(--sh-2);}
.acc__btn{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;background:transparent;border:0;text-align:left;
  font-size:17px;font-weight:600;color:var(--text);
}
.acc__btn:hover{color:var(--ink);}
.acc__sign{position:relative;flex:0 0 auto;width:20px;height:20px;}
.acc__sign::before,.acc__sign::after{
  content:"";position:absolute;background:var(--ink);border-radius:2px;transition:transform .24s ease,opacity .24s ease;
}
.acc__sign::before{left:0;top:9px;width:20px;height:2px;}
.acc__sign::after{left:9px;top:0;width:2px;height:20px;}
.acc__item.is-open .acc__sign::after{transform:scaleY(0);opacity:0;}
.acc__panel{max-height:0;overflow:hidden;transition:max-height .24s ease;}
.acc__panel-inner{padding:0 24px 22px;color:var(--muted);font-size:15.5px;}
.acc__panel-inner ol{list-style:none;counter-reset:s;}
.acc__panel-inner ol li{
  counter-increment:s;position:relative;padding-left:28px;margin-bottom:10px;
}
.acc__panel-inner ol li::before{
  content:counter(s);position:absolute;left:0;top:4px;
  width:20px;height:20px;border-radius:6px;background:rgba(11,46,42,.08);
  color:var(--ink);font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;
}

/* ---------- 入口矩阵 ---------- */
.entry-matrix{margin:0 -12px;}
.entry-card{
  display:flex;flex-direction:column;gap:8px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px 24px;height:100%;
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.entry-card:hover{transform:translateY(-4px);border-color:rgba(11,46,42,.3);box-shadow:var(--sh-3);}
.entry-card h3{font-size:19px;font-weight:600;}
.entry-card p{color:var(--muted);font-size:14.5px;}
.entry-card__go{margin-top:auto;font-size:14px;font-weight:600;color:var(--ink);display:inline-flex;align-items:center;gap:6px;}
.entry-card:hover .entry-card__go span{transform:translateX(4px);}
.entry-card__go span{transition:transform .22s ease;}

/* ---------- CTA ---------- */
.cta-band{
  background:linear-gradient(135deg,#0B2E2A 0%,#12463F 100%);
  color:#F3F1E9;border-radius:24px;
  padding:56px 40px;text-align:center;
}
.cta-band h2{font-size:clamp(24px,3vw,34px);font-weight:700;line-height:1.25;}
.cta-band p{margin:16px auto 0;max-width:620px;color:rgba(243,241,233,.78);font-size:16px;}
.cta-band .btn{margin-top:30px;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:linear-gradient(135deg,#0B2E2A 0%,#071E1B 100%);
  color:rgba(243,241,233,.8);
  padding:72px 0 32px;
  margin-top:0;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand__text{font-size:18px;font-weight:800;color:#F7F5EE;}
.footer-about{font-size:14.5px;line-height:1.85;color:rgba(243,241,233,.66);max-width:340px;}
.footer-col h3{font-size:15px;font-weight:700;color:#F3F1E9;margin-bottom:16px;}
.footer-col li{margin-bottom:10px;}
.footer-col a{font-size:14.5px;color:rgba(243,241,233,.72);}
.footer-col a:hover{color:var(--lime);}
.footer-bottom{
  margin-top:52px;padding-top:22px;
  border-top:1px solid rgba(243,241,233,.14);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:rgba(243,241,233,.55);
}

/* ---------- 底部固定转化条 ---------- */
.bottom-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:90;
  background:#FAF9F5;border-top:1px solid var(--line);
  box-shadow:0 -10px 28px -22px rgba(11,46,42,.5);
  padding:10px 0 calc(10px + env(safe-area-inset-bottom,0px));
  transform:translateY(120%);
  transition:transform .3s cubic-bezier(.22,.68,.32,1);
}
.bottom-cta.is-visible{transform:translateY(0);}
.bottom-cta__inner{display:flex;align-items:center;gap:16px;}
.bottom-cta__text{font-size:14.5px;color:var(--ink);font-weight:600;flex:1 1 auto;min-width:0;}
.bottom-cta__close{
  flex:0 0 auto;width:34px;height:34px;border-radius:50%;
  border:1px solid var(--line);background:transparent;color:var(--muted);
  font-size:16px;line-height:1;display:flex;align-items:center;justify-content:center;
}
.bottom-cta__close:hover{color:var(--ink);border-color:rgba(11,46,42,.3);}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  :root{--sec:72px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cat-hero{padding-bottom:76px;}
}
@media (max-width:639px){
  :root{--sec:52px;}
  body{font-size:16px;padding-bottom:76px;}
  .section__head{flex-direction:column;align-items:flex-start;margin-bottom:28px;}
  .cat-hero{padding:18px 0 64px;}
  .cat-hero__body{margin-top:30px;}
  .cat-hero__actions .btn{width:100%;}
  .tag-scroll{margin-top:-34px;}
  .cat-card__body{padding:20px 20px 22px;}
  .acc__btn{font-size:16px;padding:17px 18px;}
  .acc__panel-inner{padding:0 18px 20px;}
  .cta-band{padding:40px 22px;border-radius:18px;}
  .footer-grid{grid-template-columns:1fr;}
  .bottom-cta__inner{min-height:44px;}
  .bottom-cta__text{font-size:13.5px;}
  .steps{padding-left:28px;}
  .steps__item::before{left:-26px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category4 */
:root{
  --ink:#0B2E2A;
  --ink-deep:#071E1B;
  --ink-mid:#12463F;
  --lime:#D5F35C;
  --sand:#EDE7DA;
  --page:#FAF9F5;
  --card:#FFFFFF;
  --text:#12181A;
  --muted:#55605F;
  --weak:#8A9490;
  --line:rgba(11,46,42,.10);
  --line-strong:rgba(11,46,42,.28);
  --coral:#FF6B4A;
  --r-lg:20px;
  --r-md:14px;
  --r-sm:10px;
  --shadow-1:0 1px 2px rgba(11,46,42,.06),0 8px 24px -16px rgba(11,46,42,.18);
  --shadow-2:0 20px 44px -22px rgba(11,46,42,.36);
  --ease:cubic-bezier(.22,.68,.32,1);
  --font-cn:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  --font-num:"SF Mono",ui-monospace,"JetBrains Mono",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--page);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{color:var(--ink);margin:0;line-height:1.2;}
p{margin:0;}
ul,ol{margin:0;padding:0;}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:4px;}
body.has-bar{padding-bottom:104px;}

/* ============ 容器 ============ */
.grid-container{max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;}
@media (min-width:1440px){
  .grid-container{max-width:1280px;padding-left:32px;padding-right:32px;}
}
.grid-x{display:flex;flex-wrap:wrap;}
.grid-x > .cell{width:100%;}
.grid-margin-x{margin-left:-12px;margin-right:-12px;}
.grid-margin-x > .cell{padding-left:12px;padding-right:12px;}
@media (min-width:1025px){
  .grid-margin-x{margin-left:-16px;margin-right:-16px;}
  .grid-margin-x > .cell{padding-left:16px;padding-right:16px;}
}
.cell{flex:0 0 auto;min-width:0;}
@media (min-width:1025px){
  .large-5{width:41.6667%;}
  .large-6{width:50%;}
  .large-7{width:58.3333%;}
  .large-12{width:100%;}
  .large-offset-1{margin-left:8.3333%;}
}
@media (min-width:640px) and (max-width:1024px){
  .medium-6{width:50%;}
  .medium-12{width:100%;}
}

/* ============ 通用组件 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:700;line-height:1;
  padding:14px 28px;border-radius:999px;border:1px solid transparent;
  cursor:pointer;position:relative;overflow:hidden;
  transition:background-color .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease);
  min-height:44px;
}
.btn::after{
  content:"";position:absolute;top:0;left:-120%;width:60%;height:100%;
  background:linear-gradient(90deg,rgba(255,255,255,0),rgba(255,255,255,.45),rgba(255,255,255,0));
  transition:left .32s var(--ease);pointer-events:none;
}
.btn:hover::after{left:130%;}
.btn-primary{background:var(--lime);color:var(--ink);}
.btn-primary:hover{background:#c9ea4b;color:var(--ink-deep);}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--ink);}
.btn-ghost:hover{background:var(--ink);color:var(--sand);border-color:var(--ink);}
.btn-ghost-light{background:transparent;border-color:rgba(237,231,218,.5);color:var(--sand);}
.btn-ghost-light:hover{background:var(--sand);color:var(--ink);border-color:var(--sand);}
.btn-sm{padding:10px 18px;font-size:14px;}
.btn-lg{padding:16px 34px;font-size:16px;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--ink);
  position:relative;padding-bottom:2px;transition:color .22s var(--ease);
}
.text-link::after{
  content:"";position:absolute;left:0;bottom:0;width:0;height:1px;background:currentColor;
  transition:width .22s var(--ease);
}
.text-link:hover::after{width:100%;}
.text-link span{transition:transform .22s var(--ease);}
.text-link:hover span{transform:translateX(4px);}
.badge{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:500;padding:6px 14px;border-radius:999px;
  border:1px solid rgba(237,231,218,.35);color:var(--sand);background:rgba(237,231,218,.06);
}
.badge .dot{width:7px;height:7px;border-radius:50%;background:var(--lime);flex:0 0 auto;}
.tag{
  display:inline-flex;align-items:center;font-size:12.5px;font-weight:600;
  padding:4px 12px;border-radius:6px;background:var(--sand);color:var(--ink);
}
.tag--line{background:transparent;border:1px solid var(--line-strong);color:var(--ink);}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(250,249,245,.96);
  border-bottom:1px solid var(--line);
  transition:box-shadow .24s var(--ease),background-color .24s var(--ease);
}
.site-header.is-scrolled{
  background:#FAF9F5;
  box-shadow:0 8px 24px -18px rgba(11,46,42,.4);
}
.nav-inner{
  display:flex;align-items:center;gap:20px;height:78px;
  transition:height .24s var(--ease);
}
.site-header.is-scrolled .nav-inner{height:64px;}
.nav-brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;min-height:44px;}
.nav-brand__mark{
  width:26px;height:26px;border-radius:8px;background:var(--lime);position:relative;flex:0 0 auto;
}
.nav-brand__mark::after{
  content:"";position:absolute;inset:7px;background:var(--ink);
  clip-path:polygon(0 0,100% 0,100% 55%,55% 100%,0 100%);
}
.nav-brand__text{font-size:18px;font-weight:700;color:var(--ink);white-space:nowrap;letter-spacing:-.01em;}
.nav-channel{
  display:flex;align-items:center;gap:28px;flex:1 1 auto;justify-content:center;
}
.nav-channel__item{
  position:relative;font-size:15px;color:var(--muted);padding:6px 2px;min-height:44px;
  display:inline-flex;align-items:center;transition:color .22s var(--ease);
}
.nav-channel__item::after{
  content:"";position:absolute;left:0;right:100%;bottom:0;height:2px;background:var(--lime);
  transition:right .24s var(--ease);
}
.nav-channel__item:hover{color:var(--ink);}
.nav-channel__item:hover::after{right:0;}
.nav-channel__item.is-active{color:var(--ink);font-weight:600;}
.nav-channel__item.is-active::after{right:0;}
.nav-side{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.nav-badge{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--ink);
  padding:7px 14px;border-radius:999px;border:1px solid rgba(11,46,42,.18);background:#fff;
  white-space:nowrap;
}
.nav-badge .dot{
  width:7px;height:7px;border-radius:50%;background:var(--lime);
  box-shadow:0 0 0 3px rgba(213,243,92,.35);
}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line-strong);
  background:transparent;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  cursor:pointer;padding:0;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .24s var(--ease),opacity .24s var(--ease);}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ============ 面包屑 ============ */
.breadcrumb{padding:22px 0 0;font-size:13.5px;color:var(--weak);}
.breadcrumb ol{list-style:none;display:flex;flex-wrap:wrap;gap:0 6px;margin:0;padding:0;}
.breadcrumb li{display:flex;align-items:center;gap:6px;}
.breadcrumb li:not(:first-child)::before{content:"/";color:var(--weak);}
.breadcrumb a{color:var(--muted);transition:color .22s var(--ease);}
.breadcrumb a:hover{color:var(--ink);}
.breadcrumb [aria-current="page"]{color:var(--ink);font-weight:600;}

/* ============ 分类 Hero ============ */
.cat-hero{
  background:linear-gradient(135deg,#0B2E2A 0%,#12463F 100%);
  color:var(--sand);padding:56px 0 76px;position:relative;overflow:hidden;
}
.cat-hero::before{
  content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(213,243,92,.12),rgba(213,243,92,0) 68%);
  pointer-events:none;
}
.cat-hero .cell{position:relative;z-index:2;}
.cat-hero h1{
  font-size:clamp(34px,4.8vw,60px);font-weight:800;line-height:1.08;letter-spacing:-.02em;
  color:#fff;margin:18px 0 18px;max-width:16em;
}
.cat-hero__lede{
  font-size:16.5px;line-height:1.9;color:rgba(237,231,218,.84);max-width:44em;margin:0;
}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin:26px 0 30px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero-media{
  position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:0 30px 60px -30px rgba(0,0,0,.55);
  margin-top:36px;
}
.hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.hero-media::after{content:"";position:absolute;inset:0;background:rgba(11,46,42,.08);}

/* ============ 板块 ============ */
.section{padding:96px 0;}
.section--sand{background:var(--sand);}
.section--white{background:#fff;}
.section--page{background:var(--page);}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap;
}
.section-head h2{font-size:clamp(26px,3.4vw,40px);font-weight:700;letter-spacing:-.02em;margin:0;}
.section-head p{margin-top:10px;font-size:15.5px;color:var(--muted);max-width:44em;}
.section-head .text-link{align-self:flex-end;}

/* ============ Tabs ============ */
.tabs{
  border:0;background:transparent;display:flex;flex-wrap:wrap;gap:10px;margin:0 0 30px;
}
.tabs::before,.tabs::after{display:none;}
.tabs .tabs-title{float:none;}
.tabs .tabs-title > a{
  display:inline-flex;align-items:center;min-height:44px;
  padding:11px 22px;font-size:15px;font-weight:600;line-height:1;
  color:var(--muted);background:#fff;border:1px solid var(--line);
  border-radius:999px;transition:all .22s var(--ease);
}
.tabs .tabs-title > a:hover{color:var(--ink);border-color:var(--line-strong);background:#fff;}
.tabs .tabs-title > a:focus{outline:2px solid var(--lime);outline-offset:2px;}
.tabs .tabs-title > a[aria-selected="true"]{
  background:var(--ink);border-color:var(--ink);color:var(--sand);
}
.tabs-content{border:0;background:transparent;margin:0;}
.tabs-content .tabs-panel{padding:0;}
.tabs-content .tabs-panel.is-active{animation:fadeUp .48s var(--ease);}
@keyframes fadeUp{from{opacity:0;transform:translateY(16px);}to{opacity:1;transform:translateY(0);}}
.panel-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:32px;align-items:start;}
.panel-grid h3{font-size:21px;font-weight:600;margin-bottom:12px;}
.panel-grid p{font-size:15.5px;color:var(--muted);}
.step-list{list-style:none;counter-reset:st;margin:20px 0 0;display:grid;gap:14px;}
.step-list li{
  counter-increment:st;position:relative;padding-left:44px;font-size:15.5px;color:var(--text);line-height:1.8;
}
.step-list li::before{
  content:counter(st,decimal-leading-zero);
  position:absolute;left:0;top:1px;
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:13px;font-weight:700;color:var(--ink);
  width:30px;height:30px;border-radius:50%;background:var(--lime);
  display:flex;align-items:center;justify-content:center;
}
.tip-card{
  background:#fff;border:1px solid var(--line);border-left:3px solid var(--lime);
  border-radius:var(--r-md);padding:22px 24px;box-shadow:var(--shadow-1);
}
.tip-card h4{font-size:15px;font-weight:700;color:var(--ink);margin-bottom:8px;}
.tip-card p{font-size:14.5px;color:var(--muted);line-height:1.8;}
.tip-card + .tip-card{margin-top:16px;}

/* ============ 行式列表 ============ */
.row-list{border-top:1px solid var(--line);}
.row-item{
  display:grid;grid-template-columns:96px 1fr auto;gap:24px;align-items:start;
  padding:24px 4px;border-bottom:1px solid var(--line);
  transition:padding-left .22s var(--ease),background-color .22s var(--ease);
}
.row-item:hover{padding-left:14px;background:rgba(255,255,255,.6);}
.row-item__no{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:22px;font-weight:700;color:var(--weak);line-height:1.2;
}
.row-item__title{font-size:19px;font-weight:600;margin:0 0 6px;color:var(--ink);}
.row-item__desc{font-size:15px;color:var(--muted);line-height:1.8;margin:0;max-width:52em;}
.row-item__meta{align-self:center;}
@media (max-width:639px){
  .row-item{grid-template-columns:1fr;gap:10px;}
  .row-item__no{font-size:15px;color:var(--ink);background:var(--lime);display:inline-flex;padding:2px 10px;border-radius:6px;justify-self:start;}
  .row-item__meta{justify-self:start;}
}

/* ============ 提示对照 ============ */
.compare-media{border-radius:var(--r-lg);overflow:hidden;position:relative;box-shadow:var(--shadow-1);}
.compare-media img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.compare-media::after{content:"";position:absolute;inset:0;background:rgba(11,46,42,.08);}
.cat-dl{display:grid;gap:14px;margin:0;}
.cat-dl__row{
  display:grid;grid-template-columns:1fr 1.15fr;gap:20px;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:18px 22px;
  transition:border-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.cat-dl__row:hover{border-color:rgba(11,46,42,.3);transform:translateY(-3px);box-shadow:var(--shadow-2);}
.cat-dl dt{
  font-family:var(--font-num);font-size:14.5px;font-weight:600;color:var(--ink);
  display:flex;align-items:center;gap:8px;
}
.cat-dl dt::before{content:"";width:8px;height:8px;border-radius:2px;background:var(--coral);flex:0 0 auto;}
.cat-dl dd{margin:0;font-size:14.8px;color:var(--muted);line-height:1.8;}

/* ============ FAQ ============ */
.faq-wrap{max-width:860px;}
ul.accordion{
  border:0;background:transparent;margin:0;
}
ul.accordion .accordion-item{border:0;}
ul.accordion .accordion-title{
  border:1px solid var(--line);border-radius:var(--r-md);background:#fff;
  padding:20px 56px 20px 24px;font-size:17px;font-weight:600;color:var(--ink);
  position:relative;transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
ul.accordion .accordion-title:hover{border-color:rgba(11,46,42,.3);box-shadow:var(--shadow-1);}
ul.accordion .accordion-title::before{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  font-size:22px;font-weight:400;color:var(--ink);line-height:1;
}
ul.accordion .accordion-item.is-active > .accordion-title::before{content:"−";}
ul.accordion .accordion-title:focus{outline:2px solid var(--lime);outline-offset:2px;}
ul.accordion .accordion-content{
  border:1px solid var(--line);border-top:0;background:#fff;
  border-radius:0 0 var(--r-md) var(--r-md);padding:20px 24px 22px;
  color:var(--muted);font-size:15px;line-height:1.85;
  transition:height .24s var(--ease);
}

/* ============ 入口矩阵 ============ */
.cat-entry-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;}
.cat-entry{
  display:block;position:relative;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-lg);padding:28px 26px 26px;
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.cat-entry:hover{transform:translateY(-4px);border-color:rgba(11,46,42,.3);box-shadow:var(--shadow-2);}
.cat-entry__no{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:13px;font-weight:700;color:var(--ink);background:var(--lime);
  padding:3px 10px;border-radius:6px;display:inline-block;margin-bottom:16px;
}
.cat-entry h3{font-size:20px;font-weight:600;margin-bottom:8px;}
.cat-entry p{font-size:14.8px;color:var(--muted);line-height:1.8;margin-bottom:16px;}
.cat-entry .text-link{font-size:14.5px;}

/* ============ 转化段 ============ */
.bottom-cta{padding:100px 0;text-align:center;}
.bottom-cta h2{font-size:clamp(26px,3.4vw,40px);font-weight:700;margin-bottom:16px;}
.bottom-cta p{max-width:34em;margin:0 auto 28px;font-size:16.5px;color:var(--muted);line-height:1.9;}

/* ============ 底部固定条 ============ */
.bottom-bar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:90;
  background:#fff;border-top:1px solid var(--line);
  box-shadow:0 -14px 34px -24px rgba(11,46,42,.5);
  padding:12px 0 calc(12px + env(safe-area-inset-bottom));
}
body.js-ready .bottom-bar{display:block;transform:translateY(130%);transition:transform .32s var(--ease);}
body.js-ready .bottom-bar.is-visible{transform:translateY(0);}
.bottom-bar__inner{display:flex;align-items:center;justify-content:space-between;gap:18px;}
.bottom-bar__text{font-size:15px;font-weight:600;color:var(--ink);line-height:1.4;}
.bottom-bar__text small{display:block;font-size:13px;font-weight:400;color:var(--weak);}
.bottom-bar__actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.bottom-bar__close{
  width:44px;height:44px;border-radius:50%;border:1px solid var(--line);background:transparent;
  color:var(--muted);font-size:18px;line-height:1;cursor:pointer;transition:all .22s var(--ease);
}
.bottom-bar__close:hover{background:var(--sand);color:var(--ink);}

/* ============ 页脚 ============ */
.site-footer{
  background:linear-gradient(135deg,#0B2E2A 0%,#0e3a33 100%);
  color:rgba(237,231,218,.8);padding:72px 0 26px;
}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand__text{font-size:18px;font-weight:700;color:#fff;}
.footer-about{font-size:14.5px;line-height:1.9;color:rgba(237,231,218,.72);max-width:30em;}
.footer-col h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:18px;letter-spacing:.02em;}
.footer-col ul{list-style:none;display:grid;gap:11px;}
.footer-col a{font-size:14.5px;color:rgba(237,231,218,.8);transition:color .22s var(--ease);}
.footer-col a:hover{color:var(--lime);}
.footer-bottom{
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(237,231,218,.16);
  font-size:13px;color:rgba(237,231,218,.6);
}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(16px);}
body.js-ready .reveal{transition:opacity .48s var(--ease),transform .48s var(--ease);}
body.js-ready .reveal.is-in{opacity:1;transform:translateY(0);}
body:not(.js-ready) .reveal{opacity:1;transform:none;}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .section{padding:72px 0;}
  .cat-hero{padding:44px 0 60px;}
  .panel-grid{grid-template-columns:1fr;gap:24px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .nav-toggle{display:inline-flex;}
  .nav-badge{display:none;}
  .nav-channel{
    position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);
    background:var(--ink);flex-direction:column;align-items:stretch;justify-content:flex-start;
    gap:0;padding:96px 24px 32px;margin:0;
    transform:translateX(100%);transition:transform .24s var(--ease);
    z-index:120;overflow-y:auto;
  }
  .nav-channel.is-open{transform:translateX(0);}
  .nav-channel__item{
    width:100%;padding:16px 0;font-size:16px;color:rgba(237,231,218,.86);
    border-bottom:1px solid rgba(237,231,218,.14);justify-content:flex-start;
  }
  .nav-channel__item::after{display:none;}
  .nav-channel__item:hover,.nav-channel__item.is-active{color:var(--lime);}
}
@media (max-width:767px){
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;}
  .cat-entry-grid{grid-template-columns:1fr;}
  .cat-dl__row{grid-template-columns:1fr;gap:10px;}
}
@media (max-width:639px){
  .section{padding:52px 0;}
  .cat-hero h1{font-size:clamp(30px,8vw,40px);}
  .cat-hero__lede{font-size:15.5px;}
  .grid-margin-x{margin-left:-10px;margin-right:-10px;}
  .grid-margin-x > .cell{padding-left:10px;padding-right:10px;}
  .hero-actions .btn{width:100%;}
  .bottom-bar__inner{padding:0 4px;}
  .bottom-bar__text{font-size:14px;}
  body.has-bar{padding-bottom:96px;}
  body.js-ready .bottom-bar{transform:translateY(0);}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none !important;animation:none !important;}
  .reveal{opacity:1 !important;transform:none !important;}
}

.accordion-content{display:block !important;}
    .tabs-title > a{pointer-events:none;}
    .bottom-bar,.bottom-bar__close{display:none !important;}