/* ============================================================
   site.css —— 翼方健数（湖北）官网 · 前台样式
   依赖 tokens.css。由 CLAUDE design 交付稿重建为生产级组件类。
   ============================================================ */

/* ---------- 基础 ---------- */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font);color:var(--c-ink);background:var(--c-bg);
  overflow-x:hidden;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;line-height:1.6}
h1,h2,h3,h4{margin:0;color:var(--c-primary);font-weight:800;letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
a{text-decoration:none;color:var(--c-accent)}
img{max-width:100%;display:block}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px}
.container{max-width:var(--container);margin:0 auto;padding:0 32px}

/* ====================================================================
   顶部导航
   ==================================================================== */
.site-header{position:fixed;top:0;left:0;right:0;z-index:1000;font-family:var(--font)}
.hdr-bar{height:var(--nav-h);background:rgba(255,255,255,.6);
  backdrop-filter:saturate(180%) blur(12px);-webkit-backdrop-filter:saturate(180%) blur(12px);
  border-bottom:1px solid transparent;transition:all .24s var(--ease)}
.site-header.scrolled .hdr-bar{height:var(--nav-h-scrolled);background:rgba(255,255,255,.92);
  border-bottom-color:var(--c-line);box-shadow:var(--shadow-soft)}
.hdr-inner{max-width:var(--container);margin:0 auto;padding:0 32px;height:100%;
  display:flex;align-items:center;justify-content:space-between;gap:24px}

/* Logo */
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand-en{font-style:italic;font-weight:800;font-size:20px;letter-spacing:-.01em;
  background:var(--grad-accent-2);-webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent}
.brand-en .ai{-webkit-text-fill-color:var(--c-accent-2);color:var(--c-accent-2)}
.brand-en .i{position:relative}
.brand-en .i .dot{position:absolute;top:-1px;left:1.5px;width:4px;height:4px;border-radius:50%;
  background:var(--c-warm);-webkit-text-fill-color:var(--c-warm)}
.brand-div{width:1px;height:18px;background:#D6DEEA}
.brand-cn{font-weight:700;font-size:17px;color:var(--c-primary);letter-spacing:.01em;white-space:nowrap}
.brand-cn sup{font-size:9px;font-weight:500;color:var(--c-muted);top:-.7em}
.site-footer .brand-en{background:linear-gradient(92deg,#6FA6F0,#9FC0EE);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent;font-size:19px}
.site-footer .brand-cn{color:#fff;font-size:16px}
.site-footer .brand-div{background:rgba(255,255,255,.2);height:16px}

/* 菜单 */
.nav{display:flex;align-items:center;gap:4px;height:100%}
.nav-item{position:relative;height:100%;display:flex;align-items:center}
.nav-link{position:relative;height:100%;display:flex;align-items:center;gap:3px;padding:0 15px;
  font-size:14px;font-weight:500;color:var(--c-ink);transition:color .18s}
.nav-link .caret{font-size:11px;line-height:1;display:inline-block;transform:translateY(-1px);transition:transform .2s}
.nav-item:hover>.nav-link{color:var(--c-accent)}
.nav-item:hover>.nav-link .caret{transform:translateY(-1px) rotate(180deg)}
.nav-link::after{content:"";position:absolute;left:15px;right:15px;bottom:0;height:2px;border-radius:2px;
  background:var(--c-accent);transform:scaleX(0);transform-origin:left;transition:transform .22s var(--ease)}
.nav-link.is-active{color:var(--c-accent)}
.nav-link.is-active::after{transform:scaleX(1)}

/* megamenu */
.mega{position:absolute;top:100%;left:50%;transform:translateX(-50%) translateY(2px);
  padding:14px 8px 12px;background:#fff;border:1px solid var(--c-line);border-radius:14px;
  box-shadow:var(--shadow-pop);opacity:0;visibility:hidden;pointer-events:none;
  transition:opacity .2s ease,transform .2s var(--ease),visibility .2s}
.mega::before{content:"";position:absolute;left:0;right:0;top:-14px;height:16px}
.nav-item:hover>.mega{opacity:1;visibility:visible;pointer-events:auto;transform:translateX(-50%) translateY(8px)}
.mega--product{width:320px}.mega--solution{width:340px}
.mega-eyebrow{font-size:11px;letter-spacing:.14em;font-weight:600;color:var(--c-muted);
  text-transform:uppercase;padding:4px 16px 10px}
.mega-item{display:flex;align-items:flex-start;gap:11px;padding:9px 16px;border-radius:9px;transition:background .16s}
.mega-item:hover{background:var(--c-bg-tint-2)}
.mega-dot{flex:none;width:7px;height:7px;border-radius:50%;margin-top:6px;background:var(--c-accent)}
.mega-num{flex:none;width:22px;height:22px;border-radius:6px;display:flex;align-items:center;justify-content:center;
  font:700 11px var(--font-en);color:var(--c-accent);background:var(--c-bg-tint-2);margin-top:1px}
.mega-tt{display:block;font-size:14px;font-weight:600;color:var(--c-primary);margin-bottom:2px}
.mega-ds{display:block;font-size:12px;color:var(--c-muted);line-height:1.45}

/* CTA + 汉堡 */
.nav-cta{flex:none;display:inline-flex;align-items:center;gap:6px;padding:9px 20px;border-radius:var(--radius-pill);
  background:var(--grad-accent);color:#fff;font-size:14px;font-weight:600;
  box-shadow:0 6px 16px rgba(23,99,199,.28);transition:transform .2s var(--ease),box-shadow .2s}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 10px 22px rgba(23,99,199,.38);color:#fff}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
.nav-toggle span{width:22px;height:2px;background:var(--c-primary);border-radius:2px;transition:all .24s var(--ease)}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ====================================================================
   通用区块
   ==================================================================== */
main{display:block}
.section{padding:var(--section-y) 0}
.section-inner{max-width:var(--container);margin:0 auto;padding:var(--section-y) 32px}
.bg-white{background:#fff}.bg-tint{background:var(--c-bg-tint)}
.bg-deep{background:var(--grad-deep)}
.sec-head{text-align:center;margin-bottom:44px}
.eyebrow{font:600 12px/1 var(--font-en);letter-spacing:.18em;text-transform:uppercase;
  color:var(--c-muted-2);margin-bottom:12px}
.h2{margin:0 0 12px;font-size:30px;font-weight:800;letter-spacing:-.01em;color:var(--c-primary)}
.sub{margin:0 auto;max-width:560px;font-size:15px;line-height:1.7;color:var(--c-ink-3)}
.grid{display:grid}
.cols-3{grid-template-columns:repeat(3,1fr);gap:22px}
.cols-4{grid-template-columns:repeat(4,1fr);gap:24px}
.cols-6{grid-template-columns:repeat(6,1fr);gap:18px}

/* 按钮 */
.btn{display:inline-flex;align-items:center;gap:8px;border:1px solid transparent;cursor:pointer;
  font-size:15px;font-weight:600;padding:13px 26px;border-radius:var(--radius-pill);
  transition:transform .2s var(--ease),box-shadow .2s,border-color .2s,color .2s;font-family:var(--font)}
.btn-primary{background:var(--grad-accent);color:#fff;box-shadow:0 10px 24px rgba(23,99,199,.3)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 32px rgba(23,99,199,.4);color:#fff}
.btn-ghost{background:#fff;border-color:#CDD9EC;color:var(--c-primary)}
.btn-ghost:hover{border-color:var(--c-accent);color:var(--c-accent)}
.btn-light{background:#fff;color:var(--c-primary);font-weight:700;box-shadow:0 12px 28px rgba(0,0,0,.18)}
.btn-light:hover{transform:translateY(-2px);color:var(--c-primary)}

/* ====================================================================
   Hero
   ==================================================================== */
.hero{position:relative;min-height:72vh;padding:118px 0 64px;background:var(--grad-hero);overflow:hidden}
.hero .blob1{position:absolute;top:-120px;right:-80px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(23,99,199,.10),transparent 68%)}
.hero .blob2{position:absolute;bottom:-160px;left:-120px;width:460px;height:460px;border-radius:50%;
  background:radial-gradient(circle,rgba(159,192,238,.20),transparent 70%)}
.hero-grid{position:relative;max-width:var(--container);margin:0 auto;padding:0 32px;
  display:grid;grid-template-columns:1.02fr .98fr;gap:40px;align-items:center}
.hero-eyebrow{display:inline-flex;align-items:center;gap:7px;padding:6px 14px;border-radius:var(--radius-pill);
  background:rgba(255,255,255,.8);border:1px solid #D8E3F4;font-size:13px;font-weight:500;
  color:var(--c-accent);margin-bottom:22px}
.hero-eyebrow .d{width:6px;height:6px;border-radius:50%;background:var(--c-accent)}
.hero-title{margin:0 0 18px;font-size:43px;line-height:1.22;text-wrap:balance;font-weight:800;letter-spacing:-.01em;color:var(--c-primary)}
.hero-title .q{color:var(--c-ink)}
.hero-title .hl{color:var(--c-accent)}
.hero-sub{margin:0 0 24px;font-size:16px;line-height:1.75;color:var(--c-ink-3);max-width:480px}
.traits{display:flex;flex-wrap:wrap;gap:9px;max-width:500px;margin-bottom:30px}
.chip{display:inline-flex;align-items:center;gap:6px;padding:6px 13px;border-radius:var(--radius-pill);
  background:#fff;border:1px solid var(--c-line-3);font-size:13px;color:var(--c-ink-2)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}

/* IoDC 星座 */
.constel-card{position:relative;background:linear-gradient(160deg,#FCFDFF,#EFF4FC);
  border:1px solid #E6EEF9;border-radius:var(--radius-xl);box-shadow:0 34px 80px rgba(14,46,92,.12);padding:24px}
.constel{position:relative;width:100%;max-width:460px;margin:0 auto;aspect-ratio:1/1}
.constel svg{position:absolute;inset:0;width:100%;height:100%;overflow:visible}
.constel-core{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  width:132px;height:133px;border-radius:50%;background:linear-gradient(155deg,#2E72C9,#0E2E5C);
  color:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;
  animation:bbGlow 3.6s ease-in-out infinite;z-index:3}
.constel-core b{font:800 27px var(--font-en);letter-spacing:.01em}
.constel-core small{font-size:14px;color:var(--c-accent-softer);margin-top:2px;font-weight:700}
.node{position:absolute;width:88px;height:88px;border-radius:50%;background:#fff;border:1.5px solid #D6E2F4;
  box-shadow:0 8px 20px rgba(14,46,92,.10);display:flex;align-items:center;justify-content:center;text-align:center;
  padding:0 7px;line-height:1.25;font-size:15px;font-weight:600;color:var(--c-primary);z-index:2;animation:bbPulse 4s ease-in-out infinite}
.float-dot{position:absolute;border-radius:50%}

/* 定位带 */
.posband{background:var(--c-bg-tint);border-top:1px solid #ECF0F7;border-bottom:1px solid #ECF0F7}
.posband-inner{max-width:1000px;margin:0 auto;padding:42px 32px;text-align:center}
.posband p{margin:0 0 18px;font-size:17px;line-height:1.7;color:var(--c-ink-2)}
.posband p strong{color:var(--c-primary)}
.posband .accent{color:var(--c-accent)}
.chips-c{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.chip-b{display:inline-flex;align-items:center;gap:6px;padding:6px 15px;border-radius:var(--radius-pill);
  background:#fff;border:1px solid var(--c-line-3);font-size:13.5px;font-weight:500;color:var(--c-primary)}

/* ====================================================================
   卡片
   ==================================================================== */
.cap-card{background:#fff;border:1px solid var(--c-line-2);border-radius:var(--radius);padding:26px 24px;
  transition:transform .24s var(--ease),box-shadow .24s,border-color .24s}
.cap-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-card);border-color:#D4E1F4}
.icon-box{width:46px;height:46px;border-radius:11px;background:var(--c-bg-tint-2);
  display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.cap-card h3{margin:0 0 8px;font-size:19px;font-weight:700;color:var(--c-primary)}
.cap-card p{margin:0;font-size:14px;line-height:1.7;color:var(--c-ink-3)}

.sol-card{display:block;background:#fff;border:1px solid var(--c-line-2);border-radius:var(--radius);padding:28px 26px;
  transition:transform .24s var(--ease),box-shadow .24s,border-color .24s}
.sol-card:hover{transform:translateY(-4px);box-shadow:0 20px 44px rgba(14,46,92,.13);border-color:#C9D9F1}
.sol-num{font:800 30px var(--font-en);color:#C9D9F1;margin-bottom:10px}
.sol-card h3{margin:0 0 16px;font-size:19px;font-weight:700;color:var(--c-primary)}
.sol-list{display:flex;flex-direction:column;gap:10px;margin:0 0 20px}
.sol-list li{position:relative;padding-left:20px;font-size:13.5px;line-height:1.6;color:var(--c-ink-3);
  background:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%231763C7' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'><path d='M5 12l5 5L20 6'/></svg>") no-repeat left 4px}
.sol-more{font-size:14px;font-weight:600;color:var(--c-accent)}

/* 三大方案 · 轮播 */
.sol-carousel{position:relative}
.sol-carousel-head{display:flex;justify-content:flex-end;gap:10px;margin:-8px 0 16px}
.sol-track{display:flex;gap:22px;overflow-x:auto;scroll-snap-type:x mandatory;scroll-behavior:smooth;
  padding:4px 2px 8px;-ms-overflow-style:none;scrollbar-width:none}
.sol-track::-webkit-scrollbar{display:none}
.sol-track>.sol-card{flex:0 0 calc((100% - 44px)/3);scroll-snap-align:start}
.sol-arrow{width:42px;height:42px;border-radius:50%;border:1px solid var(--c-line);background:#fff;
  display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--c-primary);
  box-shadow:var(--shadow-soft);transition:all .18s var(--ease)}
.sol-arrow:hover{border-color:var(--c-accent);color:var(--c-accent);transform:translateY(-1px)}
.sol-arrow[disabled]{opacity:.34;cursor:default;pointer-events:none;box-shadow:none}
@media(max-width:768px){.sol-track>.sol-card{flex:0 0 86%}}

.case-card{display:block;overflow:hidden;background:var(--grad-deep);border-radius:14px;
  box-shadow:0 14px 34px rgba(14,46,92,.18);transition:transform .24s var(--ease),box-shadow .24s}
.case-card:hover{transform:translateY(-4px);box-shadow:0 24px 50px rgba(14,46,92,.28)}
.case-img{height:150px;display:flex;align-items:center;justify-content:center;font-size:13px;
  color:rgba(255,255,255,.4);background:linear-gradient(135deg,rgba(46,114,201,.4),rgba(11,36,71,.6));
  border-bottom:1px solid rgba(255,255,255,.06)}
.case-body{padding:20px 22px 24px}
.case-tag{display:inline-block;padding:4px 11px;border-radius:var(--radius-pill);
  background:rgba(159,192,238,.16);color:var(--c-accent-soft);font-size:12px;font-weight:500}
.case-body h3{margin:12px 0 8px;font-size:18px;font-weight:700;color:#fff}
.case-body p{margin:0;font-size:13.5px;line-height:1.7;color:#B7C6DE}

.logo-box{height:72px;border-radius:10px;background:#fff;border:1px dashed #D6DFEC;
  display:flex;align-items:center;justify-content:center;font-size:13px;color:#AEB8C7;overflow:hidden}
/* 后台上传/选择的配图：填充各图框（卡片配图铺满，Logo 等比内缩） */
.case-img img,.news-img img{width:100%;height:100%;object-fit:cover;display:block}
.logo-box img{max-width:78%;max-height:62%;object-fit:contain;display:block}

/* 新闻 */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:36px}
.news-head .eyebrow,.news-head .h2{text-align:left}
.news-head .h2{margin-bottom:0}
.news-more{font-size:14px;font-weight:600;color:var(--c-accent);white-space:nowrap}
.news-card{display:block;overflow:hidden;background:#fff;border:1px solid var(--c-line-2);border-radius:var(--radius);
  transition:transform .22s var(--ease),box-shadow .22s}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-card)}
.news-img{height:128px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#EEF3FB,#E2ECF9)}
.news-body{padding:18px 20px 22px}
.news-date{font:12px var(--font-en);color:var(--c-muted);margin-bottom:8px}
.news-card h3{margin:0 0 8px;font-size:16px;font-weight:700;color:var(--c-primary);line-height:1.45}
.news-card:hover h3{color:var(--c-accent)}
.news-card p{margin:0;font-size:13px;color:var(--c-ink-3);line-height:1.7}

/* 区域地图（ECharts：浅底蓝阶梯 + 枢纽连线 + 详情卡） */
.section--map{background:linear-gradient(180deg,var(--c-bg-soft) 0%,var(--c-bg) 60%)}
.section--map .section-inner{position:relative}
.map-fig{display:grid;grid-template-columns:1.2fr .8fr;gap:40px;align-items:center}
.map-chart{width:100%;height:520px;overflow:hidden;opacity:0;transform:translateY(12px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.map-chart.is-in{opacity:1;transform:none}
.map-side{display:flex;flex-direction:column;justify-content:center;gap:22px}
.map-legend{display:flex;flex-direction:column;gap:12px;margin:0;padding:0;list-style:none}
.map-legend__item{display:flex;align-items:center;gap:10px;font-size:15px;color:var(--c-ink)}
.map-legend__dot{width:14px;height:14px;border-radius:4px;box-shadow:var(--shadow-soft)}
.map-access{display:flex;flex-direction:column;gap:16px;padding:18px 20px;background:var(--c-bg);border:1px solid var(--c-line);border-radius:14px;box-shadow:var(--shadow-soft)}
.map-access__label{display:block;font-weight:700;font-size:14px;margin-bottom:6px}
.map-access__label--joined{color:var(--c-state-joined,var(--c-accent))}
.map-access__label--plan{color:var(--c-state-plan,var(--c-accent-soft))}
.map-access__line{display:block;font-size:13px;color:var(--c-ink-2);line-height:1.6;margin:0}
.map-note{font-size:12px;color:var(--c-muted);margin:0}
.map-detail{position:absolute;top:112px;right:calc(40% + 24px);width:250px;padding:18px 20px;background:var(--c-bg);border:1px solid var(--c-line);border-radius:14px;box-shadow:var(--shadow-pop);opacity:0;transform:translateY(8px);transition:opacity .25s var(--ease),transform .25s var(--ease);pointer-events:none;z-index:5}
.map-detail.is-open{opacity:1;transform:none;pointer-events:auto}
.map-detail__close{position:absolute;top:10px;right:12px;border:0;background:transparent;font-size:20px;line-height:1;color:var(--c-muted);cursor:pointer}
.map-detail__name{margin:0 0 8px;color:var(--c-primary);font-size:18px}
.map-detail__badge{display:inline-block;padding:3px 10px;border-radius:var(--radius-pill);font-size:12px;color:var(--c-bg)}
.map-detail__badge--joined{background:var(--c-state-joined,var(--c-accent))}
.map-detail__badge--planned{background:var(--c-state-plan,var(--c-accent-soft))}
.map-detail__badge--none{background:var(--c-state-none,var(--c-muted))}
.map-detail__desc{margin:12px 0 0;color:var(--c-ink-2);font-size:13px;line-height:1.7}
@media (max-width:900px){
  .map-fig{grid-template-columns:1fr;gap:20px}
  .map-chart{height:380px}
  .map-detail{position:fixed;left:0;right:0;bottom:0;top:auto;width:auto;border-radius:18px 18px 0 0;transform:translateY(100%)}
  .map-detail.is-open{transform:none}
}

/* 数字条 */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center}
.stat-num{font:800 46px var(--font-en);color:#fff;line-height:1}
.stat-label{margin-top:10px;font-size:14px;color:var(--c-accent-soft)}
.stats-note{text-align:center;margin-top:26px;font-size:12px;color:#6E84A8}

/* CTA 带 */
.cta-band{position:relative;overflow:hidden;background:linear-gradient(120deg,#0E2E5C,#1763C7);
  border-radius:20px;padding:48px 52px;display:flex;flex-wrap:wrap;gap:24px;align-items:center;justify-content:space-between}
.cta-band::after{content:"";position:absolute;right:-60px;top:-60px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.12),transparent 68%)}
.cta-band .cta-tx{position:relative}
.cta-band h2{margin:0 0 10px;font-size:27px;font-weight:800;color:#fff}
.cta-band p{margin:0;font-size:15px;color:var(--c-accent-softer);max-width:620px;line-height:1.7}
.cta-band .btn{position:relative}

/* ====================================================================
   页脚
   ==================================================================== */
.site-footer{background:var(--c-footer-bg);color:#fff;font-family:var(--font)}
.foot-inner{max-width:var(--container);margin:0 auto;padding:56px 32px 28px}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1.3fr;gap:48px}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.foot-tag{font-size:13px;line-height:1.8;color:var(--c-footer-txt);max-width:340px;margin:0 0 18px}
.foot-demo{font-size:12px;color:var(--c-footer-dim);line-height:1.7}
.foot-col-h{font-size:11px;letter-spacing:.14em;font-weight:600;color:#5C6B82;text-transform:uppercase;margin-bottom:16px}
.foot-links{display:flex;flex-direction:column;gap:11px}
.foot-links a{font-size:13.5px;color:var(--c-footer-txt);transition:color .16s}
.foot-links a:hover{color:#fff}
.foot-contact{display:flex;flex-direction:column;gap:12px;font-size:13px;color:var(--c-footer-txt);line-height:1.6}
.foot-admin{margin-top:6px;align-self:flex-start;display:inline-flex;align-items:center;gap:6px;padding:8px 16px;
  border:1px solid rgba(255,255,255,.18);border-radius:var(--radius-pill);color:#C7D2E2;font-size:12.5px;transition:all .18s}
.foot-admin:hover{border-color:var(--c-accent);color:#fff}
.foot-bottom{margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;gap:8px 20px;justify-content:space-between;align-items:center;font-size:12px;color:var(--c-footer-dim)}
.foot-beian{display:inline-flex;flex-wrap:wrap;align-items:center;gap:4px 12px}
.foot-beian a{display:inline-flex;align-items:center;gap:5px;color:inherit;text-decoration:none;transition:color .2s}
.foot-beian a:hover{color:var(--c-accent)}
.foot-beian .foot-gongan{height:15px;width:auto}
.foot-beian-sep{opacity:.45}

/* ====================================================================
   动效
   ==================================================================== */
@keyframes bbOrbit{to{transform:rotate(360deg)}}
@keyframes bbFlow{to{stroke-dashoffset:-60}}
@keyframes bbPulse{0%,100%{transform:scale(1)}50%{transform:scale(1.04)}}
@keyframes bbGlow{0%,100%{box-shadow:0 18px 44px rgba(23,99,199,.32),0 0 0 0 rgba(23,99,199,.18)}50%{box-shadow:0 18px 44px rgba(23,99,199,.4),0 0 0 14px rgba(23,99,199,0)}}
@keyframes bbFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
@keyframes bbRing{0%{transform:scale(1);opacity:.5}100%{transform:scale(2.6);opacity:0}}
.spin-orbit{transform-origin:230px 230px;animation:bbOrbit 60s linear infinite}
.flow{animation:bbFlow 2.4s linear infinite}
.ring{transform-origin:210px 172px;animation:bbRing 2.8s ease-out infinite}
[data-reveal]{opacity:0;transform:translateY(22px);transition:opacity .7s var(--ease),transform .7s var(--ease);will-change:opacity,transform}
[data-reveal].in{opacity:1;transform:none}

/* 浮动联系 */
.float-contact{position:fixed;right:18px;bottom:24px;z-index:90;display:flex;flex-direction:column;
  align-items:center;gap:5px;background:#fff;border:1px solid var(--c-line);box-shadow:var(--shadow-card);
  border-radius:14px;padding:11px 10px;cursor:pointer;transition:transform .2s var(--ease)}
.float-contact:hover{transform:translateY(-2px)}
.float-contact svg{width:22px;height:22px;color:var(--c-accent)}
.float-contact span{font-size:11px;color:var(--c-ink-3);font-weight:600}

/* ====================================================================
   内页通用 + 产品与技术页
   ==================================================================== */
.page-hero{position:relative;padding:118px 0 0;background:var(--grad-hero);overflow:hidden}
.page-hero-grid{max-width:var(--container);margin:0 auto;padding:0 32px;min-height:300px;
  display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center}
.page-hero h1{margin:0 0 14px;font-size:42px;font-weight:800;letter-spacing:-.01em;color:var(--c-primary)}
.page-hero .lead{margin:0;font-size:16px;line-height:1.75;color:var(--c-ink-3);max-width:460px}
.h2-l{margin:0;font-size:27px;font-weight:800;letter-spacing:-.01em;color:var(--c-primary)}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.two-col.wide{grid-template-columns:1.1fr .9fr}
.lead-p{margin:18px 0 22px;font-size:15.5px;line-height:1.85;color:var(--c-ink-2)}
.lead-p strong{color:var(--c-primary)}

/* 产品 hero 旋转环 */
.ph-vis{position:relative;min-height:300px;display:flex;align-items:center;justify-content:center}
.ph-ring{position:relative;width:280px;height:280px}
.ph-ring .dash{position:absolute;inset:0;border:1.5px dashed #C9D8EF;border-radius:50%;animation:bbSpin 55s linear infinite}
@keyframes bbSpin{to{transform:rotate(360deg)}}
.ph-core{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:130px;height:130px;border-radius:50%;
  background:linear-gradient(150deg,#2E72C9,#0E2E5C);box-shadow:0 24px 50px rgba(23,99,199,.30);
  display:flex;flex-direction:column;align-items:center;justify-content:center;color:#fff}
.ph-core b{font:800 26px var(--font-en)}
.ph-core small{font-size:9px;color:var(--c-accent-softer)}
.ph-float{position:absolute;padding:7px 13px;border-radius:9px;background:#fff;border:1px solid #E0E9F6;
  box-shadow:0 8px 20px rgba(14,46,92,.10);font-size:12px;font-weight:600;color:var(--c-primary)}
/* 环形节点：包裹层按 JS 算的角度定位并居中，内层 float 保留浮动动画 */
.ph-float-pos{position:absolute;transform:translate(-50%,-50%)}
.ph-float-pos .ph-float{position:static;white-space:nowrap}

/* IoDC 节点关系 */
.arch-grid{display:grid;grid-template-columns:1fr auto 1fr;gap:28px;align-items:center}
.arch-card{background:#fff;border:1px solid var(--c-line-2);border-radius:14px;padding:20px;box-shadow:0 10px 28px rgba(14,46,92,.06)}
.arch-label{text-align:center;padding:11px 9px;border-radius:9px;background:var(--c-primary);color:#fff;font-size:15px;font-weight:700;margin-bottom:14px}
.arch-label.o{background:var(--c-accent)}
.arch-list{display:flex;flex-direction:column;gap:8px}
.stk{padding:11px 15px;border-radius:7px;background:var(--c-bg-tint);border:1px solid var(--c-line-2);font-size:14.5px;color:var(--c-ink-2);text-align:center}
.stk.a{background:var(--c-bg-tint-3);border-color:#C9D8EF;color:var(--c-primary);font-weight:500}
.stk.b{background:var(--c-primary);color:#fff;border:0;font-weight:600}
.arch-mid{display:flex;flex-direction:column;align-items:center;gap:10px}
.arch-hub{width:128px;height:128px;border-radius:50%;background:linear-gradient(150deg,#2E72C9,#0E2E5C);color:#fff;
  display:flex;align-items:center;justify-content:center;text-align:center;font-size:14.5px;font-weight:700;box-shadow:0 18px 40px rgba(23,99,199,.28)}
.arch-mid small{font-size:14px;color:var(--c-muted)}

/* 隐私计算 feats + 图卡 */
.feat-list{display:flex;flex-direction:column;gap:12px}
.feat{display:flex;align-items:center;gap:12px;font-size:14px;color:var(--c-ink-2)}
.feat-tag{flex:none;display:inline-flex;align-items:center;justify-content:center;min-width:74px;padding:5px 10px;border-radius:7px;
  background:var(--c-bg-tint-2);color:var(--c-accent);font:700 12px var(--font-en)}
.diagram-card{background:#fff;border:1px solid var(--c-line-2);border-radius:16px;padding:32px;box-shadow:0 18px 44px rgba(14,46,92,.08)}
.diagram-note{text-align:center;font-size:12px;color:var(--c-muted);margin-top:6px}

/* 观数台视频占位 */
.ds-video{position:relative;border-radius:16px;overflow:hidden;background:linear-gradient(150deg,#0E2E5C,#0B2447);
  aspect-ratio:16/10;display:flex;align-items:center;justify-content:center}
.ds-video .gl{position:absolute;inset:0;opacity:.16;background:radial-gradient(circle at 30% 40%,#2E72C9,transparent 50%),radial-gradient(circle at 75% 70%,#1763C7,transparent 50%)}
.ds-play{width:64px;height:64px;margin:0 auto 14px;border-radius:50%;background:rgba(255,255,255,.14);display:flex;align-items:center;justify-content:center}

/* 治理步骤 */
.steps{display:flex;align-items:stretch;flex-wrap:wrap;justify-content:center}
.step{flex:none;width:140px;background:#fff;border:1px solid var(--c-line-2);border-radius:12px;padding:20px 14px;text-align:center;box-shadow:0 8px 22px rgba(14,46,92,.05)}
.step-no{font:800 18px var(--font-en);color:#C9D9F1;margin-bottom:8px}
.step-t{font-size:16px;font-weight:700;color:var(--c-primary);margin-bottom:6px}
.step-d{font-size:12.5px;color:var(--c-muted);line-height:1.5}
.step-arrow{display:flex;align-items:center;padding:0 8px;color:var(--c-accent-soft);font-size:18px}

/* 七要素矩阵 */
.matrix{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.mat-card{background:var(--c-bg-tint);border:1px solid var(--c-line-2);border-radius:12px;padding:20px}
.mat-card.a{background:linear-gradient(150deg,#2E72C9,#0E2E5C);display:flex;flex-direction:column;justify-content:center}
.mat-no{font-size:16px;font-weight:700;color:var(--c-primary);margin-bottom:6px}
.mat-d{font-size:12.5px;color:var(--c-ink-3);line-height:1.6}
.mat-card.a .mat-no{color:#fff}
.mat-card.a .mat-d{color:var(--c-accent-softer)}

@media (max-width:900px){
  .page-hero-grid{grid-template-columns:1fr;gap:24px;min-height:0}
  .ph-vis{min-height:0}
  .two-col,.two-col.wide{grid-template-columns:1fr;gap:28px}
  .arch-grid{grid-template-columns:1fr;gap:18px}
  .matrix{grid-template-columns:repeat(2,1fr)}
  .step-arrow{transform:rotate(90deg)}
}

/* ====================================================================
   解决方案页
   ==================================================================== */
section[id]{scroll-margin-top:72px}
.sol-hero-stack{display:flex;flex-direction:column;gap:14px;width:280px}
.sol-hero-card{padding:16px 20px;border-radius:12px;background:#fff;border:1px solid #E0E9F6;box-shadow:0 10px 28px rgba(14,46,92,.08)}
.sol-hero-card:nth-child(2){margin-left:24px}
.sol-hero-card.g{background:linear-gradient(120deg,#1763C7,#0E2E5C);box-shadow:0 14px 32px rgba(23,99,199,.28);border:0}
.sol-hero-card .n{font-family:var(--font-en);font-weight:800;color:#C9D9F1;margin-right:10px}
.sol-hero-card .t{font-weight:700;color:var(--c-primary)}
.sol-hero-card.g .n{color:rgba(255,255,255,.5)}
.sol-hero-card.g .t{color:#fff}
.sd-num{font:800 34px var(--font-en);color:#C9D9F1;margin-bottom:6px}
.sd-pain{margin:14px 0 18px;font-size:14.5px;line-height:1.8;color:var(--c-ink-2)}
.sd-pain strong{color:var(--c-danger)}
.sd-cap-h{font-size:13px;font-weight:700;color:var(--c-accent);margin-bottom:10px}
.chip-row{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:20px}
.chip-sol{display:inline-flex;align-items:center;padding:6px 14px;border-radius:var(--radius-pill);background:var(--c-bg-tint-2);font-size:13px;font-weight:500;color:var(--c-accent)}
.sd-stats{display:flex;gap:28px}
.stat-n{font:800 24px var(--font-en);color:var(--c-primary)}
.stat-l{font-size:12.5px;color:var(--c-muted);margin-top:4px}
.sd-diagram{background:var(--c-bg-tint);border:1px solid var(--c-line-2);border-radius:16px;padding:28px;box-shadow:0 14px 36px rgba(14,46,92,.06)}
.sd-diagram.white{background:#fff}
.sd-note{font-size:12px;color:var(--c-muted);margin-bottom:14px;text-align:center}
.layer-stack{display:flex;flex-direction:column;gap:10px}
.layer{padding:15px 20px;border-radius:9px;font-size:15.5px;font-weight:600;text-align:center}
.flow-row{display:flex;flex-wrap:wrap;gap:8px;justify-content:center}
.flow-chip{display:inline-flex;align-items:center;padding:10px 16px;border-radius:9px;background:var(--c-bg-tint-2);border:1px solid #D6E2F4;font-size:13px;font-weight:600;color:var(--c-primary)}
.flow-chip.a{background:var(--c-accent);border-color:var(--c-accent);color:#fff}
.flow-arrow{display:inline-flex;align-items:center;color:var(--c-accent-soft);font-size:15px}
.op-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.op-card{background:#fff;border:1px solid var(--c-line-2);border-radius:11px;padding:16px}
.op-card.a{background:linear-gradient(150deg,#2E72C9,#0E2E5C);display:flex;flex-direction:column;justify-content:center}
.op-t{font-size:13.5px;font-weight:700;color:var(--c-primary);margin-bottom:5px}
.op-d{font-size:12px;color:var(--c-muted);line-height:1.5}
.op-card.a .op-t{color:#fff}.op-card.a .op-d{color:var(--c-accent-softer)}
.sol-cta{position:relative;overflow:hidden;background:linear-gradient(120deg,#0E2E5C,#1763C7);border-radius:20px;padding:44px 48px;display:flex;flex-wrap:wrap;gap:24px;align-items:center;justify-content:space-between}
.sol-cta h2{margin:0 0 8px;font-size:25px;font-weight:800;color:#fff}
.sol-cta p{margin:0;font-size:15px;color:var(--c-accent-softer)}
/* 解决方案页·移动端：hero 导航卡两列平铺；双栏叠放时图解一律排到文案之后 */
@media (max-width:900px){
  .sol-hero-stack{width:auto;display:grid;grid-template-columns:1fr 1fr;gap:10px}
  .sol-hero-card{padding:13px 14px}
  .sol-hero-card:nth-child(2){margin-left:0}
  .two-col>.sd-diagram{order:2}
}

/* ====================================================================
   案例页
   ==================================================================== */
.page-hero-b{padding:118px 0 56px;background:var(--grad-hero);border-bottom:1px solid #ECF0F7}
.page-hero-b h1{margin:0;font-size:42px;font-weight:800;letter-spacing:-.01em;color:var(--c-primary)}
.page-hero-b .lead{margin:12px 0 0;font-size:15px;color:var(--c-ink-3)}
.page-hero-b .lead strong{color:var(--c-danger)}
.case-photo{position:relative;border-radius:16px;overflow:hidden;aspect-ratio:16/10;display:flex;align-items:center;justify-content:center}
.case-photo img{width:100%;height:100%;object-fit:cover}
.case-photo .gl{position:absolute;inset:0;opacity:.18}
.case-photo .ph{position:relative;color:rgba(255,255,255,.5);font-size:13px}
.tag-blue{display:inline-block;padding:5px 13px;border-radius:var(--radius-pill);background:var(--c-bg-tint-2);color:var(--c-accent);font-size:12.5px;font-weight:600}
.tag-orange{display:inline-block;padding:5px 13px;border-radius:var(--radius-pill);background:#FFF3E6;color:#C77A1A;font-size:12.5px;font-weight:600}
.case-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:18px}
.stat-box{background:var(--c-bg-tint);border:1px solid var(--c-line-2);border-radius:11px;padding:16px 14px;text-align:center}
.stat-box .n{font:800 21px var(--font-en);color:var(--c-primary)}
.stat-box .l{font-size:12px;color:var(--c-muted);margin-top:5px}
.case-note{font-size:12px;color:var(--c-muted)}
.info-card{background:#fff;border:1px solid var(--c-line-2);border-radius:13px;overflow:hidden}
.info-img{height:140px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#EEF3FB,#E2ECF9);color:#AEB8C7;font-size:13px}
.info-img img{width:100%;height:100%;object-fit:cover}
.info-body{padding:18px 20px 22px}
.info-card h3{margin:11px 0 7px;font-size:17px;font-weight:700;color:var(--c-primary)}
.info-card p{margin:0;font-size:13px;color:var(--c-ink-3);line-height:1.65}
.tag-s{display:inline-block;padding:4px 11px;border-radius:var(--radius-pill);background:var(--c-bg-tint-2);color:var(--c-accent);font-size:12px;font-weight:500}

/* ====================================================================
   关于页
   ==================================================================== */
@keyframes bbSpinR{to{transform:rotate(-360deg)}}
.about-intro{display:grid;grid-template-columns:.9fr 1.4fr;gap:48px;align-items:start}
.about-text{font-size:15.5px;line-height:1.85;color:var(--c-ink-2);display:flex;flex-direction:column;gap:18px}
.about-text strong{color:var(--c-primary)}
.about-art{position:absolute;inset:0;display:flex;align-items:center;justify-content:center}
.about-art .ring{position:relative;width:300px;height:300px}
.about-art .d1{position:absolute;inset:0;border:1.5px dashed #C9D8EF;border-radius:50%;animation:bbSpin 50s linear infinite}
.about-art .d2{position:absolute;inset:34px;border:1.5px solid #DCE7F6;border-radius:50%;animation:bbSpinR 40s linear infinite}
.about-art .core{position:absolute;left:50%;top:50%;width:120px;height:120px;transform:translate(-50%,-50%);border-radius:26px;
  background:linear-gradient(150deg,#2E72C9,#0E2E5C);box-shadow:0 24px 50px rgba(23,99,199,.32);display:flex;align-items:center;justify-content:center}
.about-art .core span{font:800 30px var(--font-en);color:#fff;letter-spacing:.04em}
.about-art .sq{position:absolute;border-radius:12px;background:rgba(255,255,255,.85);border:1px solid #E0E9F6;box-shadow:0 10px 24px rgba(14,46,92,.12)}
.timeline{position:relative;display:grid;grid-auto-flow:column;grid-auto-columns:minmax(0,1fr);gap:24px}
.tl-line{position:absolute;left:8%;right:8%;top:13px;height:2px;background:linear-gradient(90deg,#1763C7,#9FC0EE)}
.tl-item{position:relative;text-align:center}
.tl-dot{width:14px;height:14px;border-radius:50%;background:var(--c-accent);border:3px solid #fff;box-shadow:0 0 0 2px var(--c-accent);margin:6px auto 18px}
.tl-year{font-size:16px;font-weight:700;color:var(--c-primary);margin-bottom:8px}
.tl-text{font-size:13.5px;color:var(--c-ink-3);line-height:1.6}
.q-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:18px}
.q-box{min-height:120px;border-radius:12px;background:var(--c-bg-tint);border:1px dashed #CDD9EC;display:flex;flex-direction:column;gap:10px;align-items:center;justify-content:center;padding:18px;text-align:center}
.q-img{width:100%;height:84px;border-radius:8px;background:#fff;display:flex;align-items:center;justify-content:center;overflow:hidden}
.q-img:empty{display:none}
.q-img img{max-width:100%;max-height:100%;object-fit:contain}
.q-title{font-size:14px;font-weight:700;color:var(--c-primary)}
.q-desc{font-size:12.5px;color:var(--c-ink-3);line-height:1.6}
.contact-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:32px;align-items:stretch}
.contact-card{background:#fff;border:1px solid var(--c-line-2);border-radius:14px;padding:32px;display:flex;flex-direction:column;gap:22px}
.ci-row{display:flex;gap:14px;align-items:flex-start}
.ci-icon{flex:none;width:40px;height:40px;border-radius:11px;background:var(--c-bg-tint-2);display:flex;align-items:center;justify-content:center}
.ci-label{font-size:12px;color:var(--c-muted);margin-bottom:4px}
.ci-val{font-size:15px;font-weight:600;color:var(--c-primary)}
.map-ph{position:relative;border-radius:14px;overflow:hidden;border:1px solid var(--c-line-2);
  background:linear-gradient(135deg,#EEF3FB,#E2ECF9);min-height:300px;display:grid;place-items:center;color:var(--c-muted);text-align:center}
@media (max-width:900px){
  .about-intro,.contact-grid{grid-template-columns:1fr;gap:28px}
  .timeline{grid-auto-flow:row;grid-template-columns:1fr 1fr;gap:32px 24px}.tl-line{display:none}
  .q-grid{grid-template-columns:repeat(2,1fr)}
}

/* ====================================================================
   新闻列表 + 详情
   ==================================================================== */
.news-list-wrap{max-width:1000px;margin:0 auto;padding:56px 32px 24px;display:flex;flex-direction:column;gap:8px}
.news-row{display:flex;gap:24px;align-items:center;padding:22px 20px;border:1px solid transparent;border-radius:12px;transition:background .18s,border-color .18s}
.news-row:hover{background:#F8FAFD;border-color:var(--c-line)}
.nrow-thumb{flex:none;width:160px;height:104px;border-radius:10px;background:linear-gradient(135deg,#EEF3FB,#E2ECF9);display:flex;align-items:center;justify-content:center;overflow:hidden}
.nrow-thumb img{width:100%;height:100%;object-fit:cover}
.nrow-body{flex:1;min-width:0}
.nrow-body h3{margin:0 0 8px;font-size:18px;font-weight:700;color:var(--c-primary);line-height:1.4}
.news-row:hover .nrow-body h3{color:var(--c-accent)}
.nrow-body p{margin:0 0 12px;font-size:13.5px;line-height:1.7;color:var(--c-ink-3)}
.nrow-date{font:12.5px var(--font-en);color:var(--c-muted)}
.nrow-arrow{flex:none;color:#C9D9F1;font-size:20px}
.pager{max-width:1000px;margin:0 auto;padding:8px 32px 72px;display:flex;align-items:center;justify-content:center;gap:8px}
.pg-btn{display:inline-flex;align-items:center;padding:8px 16px;border:1px solid var(--c-line);border-radius:8px;font-size:13.5px;color:var(--c-ink-3);cursor:pointer;transition:all .16s}
.pg-num{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border:1px solid var(--c-line);border-radius:8px;font:13.5px var(--font-en);color:var(--c-ink-3);cursor:pointer;transition:all .16s}
.pg-btn:hover,.pg-num:hover{border-color:var(--c-accent);color:var(--c-accent)}
.pg-num.active{border-color:var(--c-accent);color:#fff;background:var(--c-accent);cursor:default}
.pager .is-disabled{opacity:.4;cursor:default;pointer-events:none}

.article-head{max-width:780px;margin:0 auto;padding:118px 32px 24px}
.article-back{display:inline-flex;align-items:center;gap:6px;font-size:13.5px;color:var(--c-accent);margin-bottom:22px}
.article-head h1{margin:16px 0 18px;font-size:32px;line-height:1.35;font-weight:800;color:var(--c-primary)}
.article-meta{display:flex;flex-wrap:wrap;gap:18px;padding-bottom:22px;border-bottom:1px solid var(--c-line);font-size:13px;color:var(--c-muted)}
.article-body{max-width:780px;margin:0 auto;padding:8px 32px 24px;font-size:16px;line-height:1.9;color:var(--c-ink-2)}
.article-img{margin:18px 0 26px;height:300px;border-radius:14px;background:linear-gradient(135deg,#EEF3FB,#E2ECF9);display:grid;place-items:center;color:var(--c-muted);font-size:13px}
.article-body h2{margin:30px 0 14px;font-size:21px;font-weight:700;color:var(--c-primary)}
.article-body p{margin:0 0 20px}
.article-body ul{margin:0 0 20px;padding-left:22px;list-style:disc;line-height:1.9}
.article-body li+li{margin-top:8px}
.article-body li::marker{color:var(--c-accent)}
.quote{margin:0 0 20px;padding:16px 22px;background:var(--c-bg-tint);border-left:3px solid var(--c-accent);border-radius:0 10px 10px 0;font-size:15px;color:var(--c-ink-2)}
.article-nav{max-width:780px;margin:0 auto;padding:32px}
.nav-cards{display:grid;grid-template-columns:1fr 1fr;gap:16px;border-top:1px solid var(--c-line);padding-top:24px}
.nav-card{display:block;padding:18px 20px;border:1px solid var(--c-line-2);border-radius:12px;transition:border-color .18s}
.nav-card:hover{border-color:var(--c-accent)}
.nav-card .lab{font-size:12px;color:var(--c-muted);margin-bottom:6px}
.nav-card .tt{font-size:14.5px;font-weight:600;color:var(--c-primary)}
@media (max-width:768px){.news-row{flex-wrap:wrap;gap:14px}.nrow-thumb{width:100%;height:120px}.nrow-arrow{display:none}.nav-cards{grid-template-columns:1fr}}

/* ====================================================================
   响应式
   ==================================================================== */
@media (max-width:992px){
  .hero-grid{grid-template-columns:1fr;gap:28px}
  .constel-card{width:100%;max-width:460px;margin:0 auto}
  .cols-4{grid-template-columns:repeat(2,1fr)}
  .cols-6{grid-template-columns:repeat(3,1fr)}
  .stats{grid-template-columns:repeat(2,1fr);gap:30px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:768px){
  :root{--section-y:46px}
  .hdr-inner{padding:0 18px}
  .nav{position:fixed;top:var(--nav-h);left:0;right:0;flex-direction:column;align-items:stretch;gap:0;height:auto;
    background:#fff;border-bottom:1px solid var(--c-line);padding:8px 16px 16px;box-shadow:var(--shadow-card);
    transform:translateY(-130%);transition:transform .24s var(--ease);max-height:calc(100vh - var(--nav-h));overflow:auto}
  .nav.open{transform:translateY(0)}
  .nav-item{height:auto;flex-direction:column;align-items:stretch}
  .nav-link{padding:12px 6px;height:auto;border-bottom:1px solid var(--c-line)}
  .nav-link::after{display:none}
  .mega{position:static;transform:none;opacity:1;visibility:visible;pointer-events:auto;width:auto!important;
    box-shadow:none;border:0;padding:0 0 8px 14px;display:none}
  .nav-item.expand .mega{display:block}
  .nav-toggle{display:flex}
  .hero{padding:96px 0 48px}
  .hero-title{font-size:32px}
  .cols-3,.cols-4,.cols-6{grid-template-columns:1fr}
  .cta-band{padding:32px 26px}
  .news-head{flex-direction:column;align-items:flex-start;gap:12px}
  .foot-grid{grid-template-columns:1fr}
  .container,.hero-grid,.section-inner,.hdr-inner,.foot-inner{padding-left:18px;padding-right:18px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  [data-reveal]{opacity:1;transform:none}
}

/* ====================================================================
   主题令牌桥接 —— 供后台「主题与样式」实时驱动；默认值同 tokens.css
   ==================================================================== */
:root{ --fs-base:16px; --weight-body:400; --weight-head:800; --lh-base:1.6; }
body{ font-size:var(--fs-base); line-height:var(--lh-base); }
h1,h2,h3,h4,.h2,.h2-l,.hero-title,.page-hero h1,.page-hero-b h1,.article-head h1,.cta-band h2,.sol-cta h2{ font-weight:var(--weight-head); }