/* ==========================================================================
   KANG'S DIGITAL — 全站样式 · 瑞士国际主义
   ========================================================================== */
:root{
  --ink:#0d0d0d;
  --paper:#f4f2ed;
  --line:rgba(13,13,13,.14);
  --muted:rgba(13,13,13,.55);
  --acid:#c8ff00;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  background:var(--paper);color:var(--ink);
  font-family:'Archivo','Noto Sans SC',sans-serif;
  overflow-x:hidden;-webkit-font-smoothing:antialiased;
}
::selection{background:var(--ink);color:var(--acid)}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}
.en{font-family:'Archivo',sans-serif;letter-spacing:.02em}
.wrap{max-width:1440px;margin:0 auto;padding:0 48px}

/* ===== 纹理 & 进度条 & 光标 ===== */
.grain{position:fixed;inset:0;pointer-events:none;z-index:999;opacity:.05;
  background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");}
.progress{position:fixed;top:0;left:0;height:3px;background:var(--ink);width:0%;z-index:1001}

/* ===== 页头 ===== */
header.site{position:fixed;top:0;left:0;right:0;z-index:1000;display:flex;align-items:center;justify-content:space-between;
  padding:22px 48px;transition:padding .4s,background .4s,box-shadow .4s}
header.site.scrolled{padding:13px 48px;background:rgba(244,242,237,.9);backdrop-filter:blur(14px);box-shadow:0 1px 0 var(--line)}
.brand{display:flex;align-items:center;gap:14px}
.mark{width:38px;height:38px;flex:none;object-fit:contain}
.brand-name{font-weight:800;font-size:14.5px;letter-spacing:.14em;line-height:1.15}
.brand-name small{display:block;font-weight:500;font-size:9.5px;letter-spacing:.18em;color:var(--muted);margin-top:3px}
nav.main ul{display:flex;gap:34px;list-style:none;align-items:center}
nav.main a{font-size:12px;font-weight:600;letter-spacing:.16em;position:relative;padding:6px 0;text-transform:uppercase}
nav.main a::after{content:"";position:absolute;left:0;bottom:0;width:100%;height:1.5px;background:var(--ink);
  transform:scaleX(0);transform-origin:right;transition:transform .35s cubic-bezier(.65,0,.35,1)}
nav.main a:hover::after,nav.main a.active::after{transform:scaleX(1);transform-origin:left}
nav.main a.active{font-weight:800}
.header-right{display:flex;align-items:center;gap:18px}
.lang-switch{font-size:11.5px;font-weight:700;letter-spacing:.14em;border:1.5px solid var(--ink);
  padding:9px 16px;border-radius:999px;transition:.3s;text-transform:uppercase}
.lang-switch:hover{background:var(--ink);color:var(--paper)}
.header-cta{border:1.5px solid var(--ink);padding:11px 24px;font-size:11.5px;font-weight:700;letter-spacing:.18em;
  text-transform:uppercase;border-radius:999px;transition:.3s}
.header-cta:hover{background:var(--ink);color:var(--paper)}

/* ===== 磁吸按钮 ===== */
.btn-primary{position:relative;display:inline-flex;align-items:center;gap:12px;background:var(--ink);color:var(--paper);
  padding:18px 36px;border-radius:999px;font-size:12px;font-weight:700;letter-spacing:.2em;text-transform:uppercase;
  transition:transform .25s,box-shadow .3s;will-change:transform}
.btn-primary:hover{box-shadow:0 18px 40px -14px rgba(13,13,13,.5)}
.btn-primary .dot{width:8px;height:8px;border-radius:50%;background:var(--acid)}
.btn-ghost{font-size:12px;font-weight:700;letter-spacing:.2em;text-transform:uppercase;border-bottom:1.5px solid var(--ink);
  padding-bottom:6px;transition:opacity .3s;display:inline-block}
.btn-ghost:hover{opacity:.55}

/* ===== Hero ===== */
.hero{min-height:100vh;position:relative;display:flex;flex-direction:column;justify-content:flex-end;padding:0 48px;overflow:hidden}
.hero-grid-lines{position:absolute;inset:0;pointer-events:none}
.hero-grid-lines i{position:absolute;top:0;bottom:0;width:1px;background:var(--line)}
.hero-meta{position:absolute;top:118px;left:48px;right:48px;display:flex;justify-content:space-between;
  font-size:11px;letter-spacing:.22em;text-transform:uppercase;color:var(--muted);font-weight:600}
.hero-title{position:relative;z-index:2}
.hero-title .row{padding:.06em 0}
.hero-title .line{display:block;font-weight:900;letter-spacing:-.03em;line-height:1.12;
  opacity:0;transform:translateY(.35em);animation:riseUp 1s cubic-bezier(.16,1,.3,1) forwards}
.hero-title .row:nth-child(1) .line{font-size:clamp(60px,11vw,180px);animation-delay:.15s}
.hero-title .row:nth-child(2) .line{font-size:clamp(60px,11vw,180px);animation-delay:.28s;display:flex;align-items:center;gap:3vw}
.hero-title .zh{font-family:'Noto Serif SC',serif;font-weight:900;font-size:clamp(22px,3.2vw,50px);letter-spacing:.3em;white-space:nowrap;line-height:1.5}
.hero-title .outline{-webkit-text-stroke:2px var(--ink);color:transparent}
.k-orb{position:absolute;right:6vw;top:20vh;width:min(34vw,440px);z-index:1;animation:float 7s ease-in-out infinite;will-change:transform}
.parent-line{margin-top:14px;font-size:11.5px;color:var(--muted);letter-spacing:.03em;line-height:1.9}
.parent-line a{border-bottom:1px solid var(--line);transition:opacity .25s}
.parent-line a:hover{opacity:.55}
@keyframes float{0%,100%{transform:translateY(0) rotate(0deg)}50%{transform:translateY(-26px) rotate(2deg)}}
@keyframes riseUp{to{opacity:1;transform:translateY(0)}}
.hero-bottom{position:relative;z-index:2;display:flex;align-items:flex-end;justify-content:space-between;margin-top:6vh;padding-bottom:48px;gap:40px}
.hero-desc{max-width:460px;font-size:15px;line-height:1.95;color:var(--muted)}
.hero-desc strong{color:var(--ink)}
.hero-actions{display:flex;gap:16px;align-items:center}
.scroll-hint{position:absolute;bottom:48px;left:50%;transform:translateX(-50%);font-size:10px;letter-spacing:.3em;
  text-transform:uppercase;color:var(--muted);writing-mode:vertical-rl;display:flex;align-items:center;gap:10px}
.scroll-hint::after{content:"";width:1px;height:52px;background:var(--ink);animation:drop 1.6s ease-in-out infinite}
@keyframes drop{0%{transform:scaleY(0);transform-origin:top}50%{transform:scaleY(1);transform-origin:top}
  51%{transform:scaleY(1);transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}}

/* ===== 跑马灯 ===== */
.marquee{border-top:1.5px solid var(--ink);border-bottom:1.5px solid var(--ink);overflow:hidden;background:var(--ink);
  color:var(--paper);padding:20px 0}
.marquee-track{display:flex;gap:64px;white-space:nowrap;animation:scrollX 26s linear infinite;width:max-content}
.marquee span{font-size:15px;font-weight:800;letter-spacing:.24em;text-transform:uppercase;display:flex;align-items:center;gap:64px}
.marquee .sep{color:var(--acid)}
@keyframes scrollX{to{transform:translateX(-50%)}}

/* ===== 区块通用 ===== */
.section{padding:120px 48px;position:relative}
.sec-head{display:flex;align-items:baseline;justify-content:space-between;gap:30px;margin-bottom:64px;flex-wrap:wrap}
.sec-tag{display:flex;align-items:center;gap:14px;font-size:11px;font-weight:700;letter-spacing:.26em;
  text-transform:uppercase;color:var(--muted)}
.sec-tag::before{content:"";width:44px;height:1.5px;background:var(--ink)}
.sec-title{font-size:clamp(38px,5vw,76px);font-weight:900;letter-spacing:-.02em;line-height:1.05}
.sec-title em{font-style:normal;-webkit-text-stroke:1.5px var(--ink);color:transparent}
.sec-note{max-width:360px;font-size:13.5px;line-height:1.9;color:var(--muted)}

/* ===== About 摘要 ===== */
.about-wrap{display:grid;grid-template-columns:1.15fr .85fr;gap:76px;align-items:start}
.about-lede{font-size:clamp(23px,2.6vw,38px);font-weight:800;line-height:1.45;letter-spacing:-.01em}
.about-lede .grey{color:rgba(13,13,13,.35)}
.about-link{margin-top:36px;display:inline-block}
.stats{display:grid;grid-template-columns:1fr 1fr;border-top:1.5px solid var(--ink)}
.stat{padding:32px 26px 28px;border-bottom:1.5px solid var(--ink)}
.stat:nth-child(odd){border-right:1.5px solid var(--ink)}
.stat .num{font-size:clamp(42px,4.4vw,64px);font-weight:900;letter-spacing:-.03em;line-height:1}
.stat .num sup{font-size:.42em;font-weight:700;vertical-align:super}
.stat .lab{margin-top:12px;font-size:11px;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--muted)}

/* ===== 服务列表（首页）===== */
.svc-list{border-top:1.5px solid var(--ink)}
.svc{display:grid;grid-template-columns:90px 1fr 1.1fr 60px;align-items:center;gap:30px;padding:42px 10px;
  border-bottom:1.5px solid var(--ink);position:relative;transition:padding .4s;overflow:hidden}
.svc::before{content:"";position:absolute;inset:0;background:var(--ink);transform:scaleY(0);transform-origin:bottom;
  transition:transform .45s cubic-bezier(.65,0,.35,1);z-index:0}
.svc:hover::before{transform:scaleY(1)}
.svc:hover{color:var(--paper)}
.svc>*{position:relative;z-index:1}
.svc .idx{font-size:13px;font-weight:700;letter-spacing:.15em;color:var(--muted)}
.svc:hover .idx{color:var(--acid)}
.svc .name{font-size:clamp(23px,2.4vw,38px);font-weight:800;letter-spacing:-.01em}
.svc .name small{display:block;font-size:12px;font-weight:600;letter-spacing:.22em;text-transform:uppercase;opacity:.55;margin-top:8px}
.svc .detail{font-size:13.5px;line-height:1.9;opacity:.62;max-width:480px}
.svc .arrow{width:44px;height:44px;border:1.5px solid currentColor;border-radius:50%;display:grid;place-items:center;
  font-size:18px;transition:transform .35s,background .35s,color .35s}
.svc:hover .arrow{transform:rotate(-45deg);background:var(--acid);border-color:var(--acid);color:var(--ink)}

/* ===== 案例卡片 ===== */
.work-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:26px}
.work-card{border:1.5px solid var(--ink);position:relative;overflow:hidden;background:var(--paper);
  transition:transform .45s cubic-bezier(.16,1,.3,1),box-shadow .45s}
.work-card:hover{transform:translateY(-8px);box-shadow:0 34px 60px -34px rgba(13,13,13,.35)}
.wc-7{grid-column:span 7}.wc-5{grid-column:span 5}
.work-card .visual{position:relative;overflow:hidden}
.work-card-static{cursor:default}
.work-card-static:hover{transform:none;box-shadow:none}
.mini-preview{height:260px}
.mini-frame{width:1100px;height:1500px;border:none;transform:scale(.42);transform-origin:0 0;
  position:absolute;top:-30px;left:-25px;pointer-events:none;filter:saturate(.96)}
.mini-overlay{position:absolute;inset:0;cursor:default}
.preview-badge{position:absolute;top:14px;left:14px;z-index:2;background:var(--acid);color:var(--ink);
  font-size:10px;font-weight:800;letter-spacing:.18em;text-transform:uppercase;padding:7px 13px;border:1.5px solid var(--ink)}
.work-card .visual svg{width:100%;height:auto;transition:transform .7s cubic-bezier(.16,1,.3,1)}
.work-card:hover .visual svg{transform:scale(1.06) rotate(-2deg)}
.work-card .info{display:flex;align-items:center;justify-content:space-between;padding:20px 24px;border-top:1.5px solid var(--ink)}
.work-card .info h3{font-size:16.5px;font-weight:800;letter-spacing:.02em}
.work-card .info p{font-size:10.5px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted);margin-top:5px;font-weight:600}
.work-card .info .no{font-size:12px;font-weight:700;color:var(--muted)}

/* ===== 新闻卡片 ===== */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.news-card{border:1.5px solid var(--ink);background:var(--paper);display:flex;flex-direction:column;
  transition:transform .4s,box-shadow .4s}
.news-card:hover{transform:translateY(-8px);box-shadow:0 30px 56px -32px rgba(13,13,13,.35)}
.news-card .nc-top{padding:26px 26px 20px;border-bottom:1.5px solid var(--ink);display:flex;justify-content:space-between;
  align-items:center;font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted);font-weight:700}
.news-card .nc-tag{background:var(--ink);color:var(--paper);padding:5px 12px;font-size:10px;letter-spacing:.16em}
.news-card h3{padding:22px 26px 8px;font-size:19px;font-weight:800;line-height:1.5;letter-spacing:.01em;flex:1}
.news-card .nc-ex{padding:0 26px 22px;font-size:13px;line-height:1.9;color:var(--muted)}
.news-card .nc-foot{border-top:1.5px solid var(--ink);padding:16px 26px;font-size:11.5px;font-weight:700;
  letter-spacing:.18em;text-transform:uppercase;display:flex;justify-content:space-between;align-items:center;transition:.3s}
.news-card:hover .nc-foot{background:var(--ink);color:var(--paper)}

/* ===== 页面 Hero（内页）===== */
.page-hero{padding:190px 48px 70px;position:relative;overflow:hidden}
.page-hero .ph-meta{font-size:11px;letter-spacing:.26em;text-transform:uppercase;color:var(--muted);font-weight:700;margin-bottom:26px;
  display:flex;gap:14px;align-items:center}
.page-hero .ph-meta::before{content:"";width:44px;height:1.5px;background:var(--ink)}
.page-hero h1{font-size:clamp(44px,7.4vw,120px);font-weight:900;letter-spacing:-.03em;line-height:1}
.page-hero h1 em{font-style:normal;-webkit-text-stroke:2px var(--ink);color:transparent}
.page-hero .ph-desc{margin-top:30px;max-width:560px;font-size:15px;line-height:2;color:var(--muted)}

/* ===== 单字入场动画 ===== */
.chars .ch{display:inline-block;opacity:0;transform:translateY(.65em) rotate(4deg);
  transition:opacity .7s cubic-bezier(.16,1,.3,1),transform .7s cubic-bezier(.16,1,.3,1)}
.chars.in .ch{opacity:1;transform:none}

/* ===== 滚动显现 ===== */
.reveal{opacity:0;transform:translateY(46px);
  transition:opacity .9s cubic-bezier(.16,1,.3,1),transform .9s cubic-bezier(.16,1,.3,1)}
.reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.1s}.reveal.d2{transition-delay:.2s}.reveal.d3{transition-delay:.3s}

/* ===== CTA band ===== */
.cta-band{background:var(--ink);color:var(--paper);padding:110px 48px;text-align:center;position:relative;overflow:hidden}
.cta-band .big{font-size:clamp(40px,6.4vw,100px);font-weight:900;letter-spacing:-.03em;line-height:1.05}
.cta-band .big .acid{color:var(--acid)}
.cta-band p{margin:26px auto 42px;max-width:520px;color:rgba(244,242,237,.6);font-size:15px;line-height:1.95}
.cta-band .btn-primary{background:var(--acid);color:var(--ink)}
.cta-ring{position:absolute;border:1px solid rgba(244,242,237,.14);border-radius:50%;pointer-events:none}

/* ===== 页脚 ===== */
footer.site{border-top:1.5px solid var(--ink);padding:84px 48px 36px;background:var(--paper)}
.foot-grid{display:grid;grid-template-columns:1.4fr .8fr .9fr 1fr 1fr;gap:40px;padding-bottom:64px}
.foot-brand .mark{width:44px;height:44px}
.foot-brand h4{margin-top:18px;font-size:18px;font-weight:900;letter-spacing:.02em;line-height:1.6}
.foot-brand p{margin-top:8px;font-size:11.5px;color:var(--muted);letter-spacing:.05em}
footer.site h5{font-size:10.5px;font-weight:700;letter-spacing:.24em;text-transform:uppercase;color:var(--muted);margin-bottom:20px}
footer.site li{list-style:none;margin-bottom:12px;font-size:13.5px;font-weight:500}
footer.site li a{transition:opacity .25s}
footer.site li a:hover{opacity:.5}
.foot-bottom{border-top:1px solid var(--line);padding-top:26px;display:flex;justify-content:space-between;align-items:center;
  font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);flex-wrap:wrap;gap:14px}
.foot-legal{display:inline-flex;gap:10px;align-items:center}
.foot-legal a{transition:opacity .25s}
.foot-legal a:hover{opacity:.5}
.foot-legal i{font-style:normal;opacity:.4}

/* ===== Cookie 弹窗 ===== */
.cookie-bar{position:fixed;left:18px;right:18px;bottom:18px;z-index:1200;max-width:720px;margin:0 auto;
  background:var(--ink);color:var(--paper);border:1.5px solid var(--ink);
  box-shadow:0 24px 60px -24px rgba(13,13,13,.55);
  transform:translateY(140%);transition:transform .5s cubic-bezier(.16,1,.3,1)}
.cookie-bar.show{transform:none}
.cookie-inner{display:flex;gap:22px;align-items:center;padding:20px 24px;flex-wrap:wrap}
.cookie-txt{flex:1;min-width:240px}
.cookie-txt strong{display:block;font-size:13px;letter-spacing:.1em;text-transform:uppercase;margin-bottom:7px}
.cookie-txt strong::before{content:"✦ ";color:var(--acid)}
.cookie-txt p{font-size:12.5px;line-height:1.9;color:rgba(244,242,237,.72)}
.cookie-actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.cookie-btn{border:none;cursor:pointer;font-family:inherit;font-size:11px;font-weight:700;
  letter-spacing:.14em;text-transform:uppercase;padding:12px 22px;border-radius:999px;transition:.3s}
.cookie-btn.solid{background:var(--acid);color:var(--ink)}
.cookie-btn.solid:hover{transform:translateY(-2px)}
.cookie-btn.ghost{background:transparent;color:rgba(244,242,237,.75);border:1px solid rgba(244,242,237,.35)}
.cookie-btn.ghost:hover{border-color:var(--paper);color:var(--paper)}
.cookie-more{font-size:11px;letter-spacing:.12em;color:rgba(244,242,237,.55);text-decoration:underline;text-underline-offset:3px;transition:.25s}
.cookie-more:hover{color:var(--acid)}

/* ===== 联系页 ===== */
.contact-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:70px;align-items:start}
.form-card{border:1.5px solid var(--ink);background:#fff;padding:44px;position:relative}
.form-card::before{content:"";position:absolute;top:10px;left:10px;right:-10px;bottom:-10px;border:1.5px solid var(--line);z-index:-1}
.field{margin-bottom:22px}
.field label{display:block;font-size:11px;font-weight:700;letter-spacing:.2em;text-transform:uppercase;
  color:var(--muted);margin-bottom:10px}
.field input,.field textarea,.field select{width:100%;border:1.5px solid var(--line);background:var(--paper);
  padding:15px 16px;font-family:inherit;font-size:14px;color:var(--ink);transition:border-color .3s,background .3s;border-radius:0;
  -webkit-appearance:none;appearance:none}
.field textarea{min-height:130px;resize:vertical}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--ink);background:#fff}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.form-status{margin-top:16px;font-size:13px;font-weight:600;display:none}
.form-status.err{display:block;color:#c0392b}
.form-status.ok{display:block;color:#1e7e34}
.contact-info .ci-block{border-top:1.5px solid var(--ink);padding:26px 4px}
.contact-info .ci-block h4{font-size:11px;letter-spacing:.24em;text-transform:uppercase;color:var(--muted);margin-bottom:12px;font-weight:700}
.contact-info .ci-block p{font-size:19px;font-weight:800;letter-spacing:.01em}
.contact-info .ci-block p small{display:block;font-size:12.5px;font-weight:500;color:var(--muted);margin-top:6px;letter-spacing:.04em}
.success-panel{min-height:60vh;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;gap:22px}
.success-panel .ok-ring{width:110px;height:110px;border:2px solid var(--ink);border-radius:50%;display:grid;place-items:center;
  animation:pop .6s cubic-bezier(.16,1,.3,1)}
.success-panel .ok-ring svg{width:44px;height:44px}
@keyframes pop{0%{transform:scale(.4);opacity:0}100%{transform:scale(1);opacity:1}}

/* ===== 新闻详情 ===== */
.article{max-width:820px;margin:0 auto}
.article .a-meta{display:flex;gap:18px;align-items:center;font-size:11.5px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--muted);font-weight:700;margin-bottom:30px}
.article .a-meta .a-tag{background:var(--ink);color:var(--paper);padding:6px 14px}
.article h1{font-size:clamp(30px,4.4vw,56px);font-weight:900;line-height:1.25;letter-spacing:-.01em;margin-bottom:44px}
.article .a-body p{font-size:16px;line-height:2.15;color:rgba(13,13,13,.82);margin-bottom:26px}
.article .a-body p:first-child::first-letter{font-size:1.6em;font-weight:900;float:left;line-height:1;padding-right:10px}
.a-nav{display:flex;justify-content:space-between;gap:20px;margin-top:70px;border-top:1.5px solid var(--ink);padding-top:30px}
.a-nav a{max-width:46%;font-weight:700;font-size:14px;line-height:1.7}
.a-nav a small{display:block;font-size:10.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--muted);margin-bottom:8px}
.a-nav a:hover{opacity:.6}
.a-nav a.next{text-align:right;margin-left:auto}

/* ===== 法务文章页 ===== */
.legal-article{max-width:760px}
.legal-sec{margin-bottom:38px}
.legal-sec h2{font-size:19px;font-weight:900;letter-spacing:.01em;margin-bottom:14px;padding-left:14px;border-left:3px solid var(--ink)}
.legal-sec p{font-size:14.5px;line-height:2.1;color:rgba(13,13,13,.8);margin-bottom:12px}
.legal-sec ul{margin:4px 0 12px 6px;list-style:none}
.legal-sec li{position:relative;padding-left:20px;font-size:14px;line-height:2;color:rgba(13,13,13,.75);margin-bottom:8px}
.legal-sec li::before{content:"—";position:absolute;left:0;color:var(--muted)}
.legal-contact{margin-top:50px;border:1.5px solid var(--ink);background:#fff;padding:28px 26px}
.legal-contact h3{font-size:15px;font-weight:900;margin-bottom:12px;letter-spacing:.06em}
.legal-contact p{font-size:13.5px;line-height:2;color:rgba(13,13,13,.75)}
.legal-contact a{border-bottom:1px solid var(--line)}

/* ===== 案例详情 ===== */
.case-hero{padding:170px 48px 60px}
.case-hero h1{font-size:clamp(40px,6.6vw,104px);font-weight:900;letter-spacing:-.03em;line-height:1.02}
.case-meta{display:grid;grid-template-columns:repeat(4,1fr);border:1.5px solid var(--ink);margin-top:50px}
.case-meta>div{padding:24px 26px;border-right:1.5px solid var(--ink)}
.case-meta>div:last-child{border-right:none}
.case-meta h5{font-size:10.5px;letter-spacing:.22em;text-transform:uppercase;color:var(--muted);margin-bottom:10px;font-weight:700}
.case-meta p{font-size:15.5px;font-weight:800}
.case-visual{border:1.5px solid var(--ink);overflow:hidden;position:relative}
.case-visual svg{width:100%;height:auto}
.case-visual .mini-frame{width:1920px;height:2600px;transform:scale(.75);transform-origin:0 0}
.case-body{max-width:800px;margin:70px auto;font-size:16.5px;line-height:2.15;color:rgba(13,13,13,.85)}
.case-metrics{display:grid;grid-template-columns:repeat(3,1fr);border:1.5px solid var(--ink)}
.case-metrics>div{padding:40px 30px;border-right:1.5px solid var(--ink);text-align:center}
.case-metrics>div:last-child{border-right:none}
.case-metrics .v{font-size:clamp(36px,4.4vw,62px);font-weight:900;letter-spacing:-.03em}
.case-metrics .k{margin-top:10px;font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--muted);font-weight:700}
.preview-flag{display:inline-block;background:var(--ink);color:var(--paper);padding:5px 12px;font-size:10px;letter-spacing:.22em;text-transform:uppercase;margin-right:6px}
.next-case{display:block;border-top:1.5px solid var(--ink);padding:80px 48px;text-align:center;transition:background .4s}
.next-case:hover{background:var(--ink);color:var(--paper)}
.next-case small{font-size:11px;letter-spacing:.28em;text-transform:uppercase;color:var(--muted);font-weight:700}
.next-case h3{margin-top:18px;font-size:clamp(30px,4.6vw,64px);font-weight:900;letter-spacing:-.02em}

/* ===== 关于页 ===== */
.philosophy-grid{display:grid;grid-template-columns:repeat(3,1fr);border:1.5px solid var(--ink)}
.phil-card{padding:44px 34px;border-right:1.5px solid var(--ink);transition:background .4s,color .4s}
.phil-card:last-child{border-right:none}
.phil-card:hover{background:var(--ink);color:var(--paper)}
.phil-card .no{font-size:12px;font-weight:700;letter-spacing:.2em;color:var(--muted)}
.phil-card:hover .no{color:var(--acid)}
.phil-card h3{margin-top:24px;font-size:24px;font-weight:900;letter-spacing:.01em}
.phil-card p{margin-top:16px;font-size:13.5px;line-height:2;opacity:.65}
.group-wrap{grid-template-columns:1.2fr .8fr}
.news-grid-list{grid-template-columns:repeat(2,1fr)}
.timeline{border-top:1.5px solid var(--ink)}
.tl-row{display:grid;grid-template-columns:140px 1fr;gap:40px;padding:34px 8px;border-bottom:1.5px solid var(--ink);
  transition:background .3s,padding .3s}
.tl-row:hover{background:#fff;padding-left:24px}
.tl-row .yr{font-size:22px;font-weight:900;letter-spacing:-.01em}
.tl-row .evt h4{font-size:17px;font-weight:800}
.tl-row .evt p{margin-top:8px;font-size:13.5px;color:var(--muted);line-height:1.9}

/* ===== AI 客服挂件 ===== */
.chat-fab{position:fixed;right:26px;bottom:26px;z-index:1100;display:flex;align-items:center;gap:10px;
  background:var(--ink);color:var(--paper);border:none;cursor:pointer;padding:15px 24px;border-radius:999px;
  font-family:inherit;font-size:12px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  box-shadow:0 16px 40px -14px rgba(13,13,13,.55);transition:transform .3s,background .3s}
.chat-fab:hover{transform:translateY(-3px)}
.chat-fab .pulse-dot{width:9px;height:9px;border-radius:50%;background:var(--acid);animation:pdot 1.8s infinite}
@keyframes pdot{0%{box-shadow:0 0 0 0 rgba(200,255,0,.55)}70%{box-shadow:0 0 0 12px rgba(200,255,0,0)}100%{box-shadow:0 0 0 0 rgba(200,255,0,0)}}
.chat-panel{position:fixed;right:26px;bottom:96px;z-index:1100;width:min(390px,calc(100vw - 40px));height:min(560px,calc(100vh - 140px));
  background:var(--paper);border:1.5px solid var(--ink);display:flex;flex-direction:column;
  box-shadow:0 40px 80px -30px rgba(13,13,13,.4);opacity:0;transform:translateY(24px) scale(.97);pointer-events:none;
  transition:opacity .35s cubic-bezier(.16,1,.3,1),transform .35s cubic-bezier(.16,1,.3,1)}
.chat-panel.open{opacity:1;transform:none;pointer-events:auto}
.chat-head{background:var(--ink);color:var(--paper);padding:18px 20px;display:flex;align-items:center;gap:13px}
.chat-head .avatar{width:38px;height:38px;flex:none}
.chat-head .ch-name{font-size:13.5px;font-weight:800;letter-spacing:.06em}
.chat-head .ch-sub{font-size:10.5px;opacity:.6;margin-top:3px;display:flex;align-items:center;gap:6px}
.chat-head .ch-sub::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--acid)}
.chat-close{margin-left:auto;background:none;border:none;color:var(--paper);font-size:20px;cursor:pointer;opacity:.7;transition:.3s}
.chat-close:hover{opacity:1}
.chat-body{flex:1;overflow-y:auto;padding:20px;display:flex;flex-direction:column;gap:14px;scroll-behavior:smooth}
.msg{max-width:82%;padding:13px 16px;font-size:13.5px;line-height:1.85;animation:msgIn .4s cubic-bezier(.16,1,.3,1)}
@keyframes msgIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
.msg.bot{background:#fff;border:1.5px solid var(--line);align-self:flex-start;border-radius:2px 14px 14px 14px}
.msg.user{background:var(--ink);color:var(--paper);align-self:flex-end;border-radius:14px 2px 14px 14px}
.msg.typing{display:flex;gap:5px;align-items:center;padding:15px 18px}
.msg.typing i{width:6px;height:6px;border-radius:50%;background:var(--muted);animation:blink 1.2s infinite}
.msg.typing i:nth-child(2){animation-delay:.2s}.msg.typing i:nth-child(3){animation-delay:.4s}
@keyframes blink{0%,60%,100%{opacity:.25;transform:translateY(0)}30%{opacity:1;transform:translateY(-4px)}}
.chat-foot{border-top:1.5px solid var(--ink);padding:13px;display:flex;gap:10px;background:#fff}
.chat-foot input{flex:1;border:1.5px solid var(--line);background:var(--paper);padding:12px 15px;font-family:inherit;font-size:13.5px}
.chat-foot input:focus{outline:none;border-color:var(--ink)}
.chat-foot button{background:var(--ink);color:var(--paper);border:none;padding:0 22px;cursor:pointer;
  font-family:inherit;font-weight:700;font-size:12px;letter-spacing:.14em;transition:.3s}
.chat-foot button:hover{background:var(--acid);color:var(--ink)}
.chat-powered{text-align:center;font-size:9.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--muted);padding:8px;background:#fff}

/* ===== 响应式 ===== */

/* ===== 董事会卡片 ===== */
.board-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.board-card{border:1.5px solid var(--ink);background:var(--paper);overflow:hidden;display:flex;flex-direction:column}
.board-card.chair{border-width:2px}
.bc-photo{position:relative;background:#e9e6de}
.bc-photo img{width:100%;height:340px;object-fit:cover;object-position:center top;display:block;transition:transform .6s}
.board-card:hover .bc-photo img{transform:scale(1.04)}
.bc-tier{position:absolute;top:12px;left:12px;background:var(--ink);color:var(--paper);
  font-size:9px;font-weight:800;letter-spacing:.2em;padding:6px 11px}
.board-card.chair .bc-tier{background:var(--acid);color:#0d0d0d}
.bc-body{padding:24px 22px;flex:1;display:flex;flex-direction:column}
.bc-role{font-size:10.5px;font-weight:700;letter-spacing:.22em;text-transform:uppercase;color:var(--muted)}
.bc-body h2{margin-top:10px;font-size:24px;font-weight:900;letter-spacing:.02em}
.bc-tag{margin-top:6px;font-size:12px;font-weight:700;color:var(--muted)}
.bc-body p{margin-top:14px;font-size:13.5px;line-height:2;color:var(--muted);flex:1}
.bc-focus{display:flex;flex-wrap:wrap;gap:7px;margin-top:18px;list-style:none}
.bc-focus li{font-size:10.5px;letter-spacing:.1em;border:1px solid var(--line);padding:5px 11px;border-radius:999px;color:var(--muted)}
.board-card .bc-more{margin-top:18px;font-size:12px;font-weight:700;letter-spacing:.08em;transition:letter-spacing .3s}
.board-card:hover .bc-more{letter-spacing:.16em}
.board-note{margin-top:44px;border:1.5px solid var(--ink);padding:30px 28px;background:var(--paper)}
.board-note h3{font-size:15px;font-weight:900;margin-bottom:12px;letter-spacing:.06em}
.board-note p{font-size:13.5px;line-height:2.1;color:var(--muted)}
@media(max-width:1020px){.board-grid{grid-template-columns:1fr 1fr}.board-card:last-child{grid-column:span 2;max-width:520px}}
@media(max-width:640px){
  .board-grid{grid-template-columns:1fr;gap:16px}
  .board-card:last-child{grid-column:auto;max-width:none}
  .bc-photo img{height:300px}
  .bc-body{padding:20px 18px}
  .bc-body h2{font-size:21px}
}


/* ===== 返回顶部悬浮按钮 ===== */
.back-top{position:fixed;right:22px;bottom:88px;z-index:950;width:46px;height:46px;border-radius:50%;
  border:1.5px solid var(--ink);background:var(--paper);color:var(--ink);cursor:pointer;
  display:grid;place-items:center;opacity:0;pointer-events:none;transform:translateY(14px);
  transition:opacity .35s,transform .35s,background .3s,color .3s;box-shadow:0 10px 26px -12px rgba(13,13,13,.4)}
.back-top.show{opacity:1;pointer-events:auto;transform:none}
.back-top:hover{background:var(--ink);color:var(--paper)}
.back-top svg{width:17px;height:17px}
html.dark .back-top{box-shadow:0 10px 26px -12px rgba(0,0,0,.6)}
@media(max-width:640px){.back-top{right:14px;bottom:80px;width:42px;height:42px}}

/* ===== 子页面返回链接 ===== */
.page-back{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;
  letter-spacing:.14em;color:var(--muted);margin-bottom:26px;transition:color .25s}
.page-back:hover{color:var(--ink)}
.page-back::before{content:"\2190";font-size:14px;transition:transform .25s}
.page-back:hover::before{transform:translateX(-4px)}

/* ===== 董事详情页 ===== */
.member-hero{display:grid;grid-template-columns:1fr 1.15fr;gap:48px;align-items:center;
  padding:130px 48px 60px;max-width:1240px;margin:0 auto}
.member-hero .mh-photo{border:1.5px solid var(--ink);overflow:hidden}
.member-hero .mh-photo img{width:100%;height:480px;object-fit:cover;object-position:center top;display:block}
.member-hero .mh-role{font-size:11px;font-weight:800;letter-spacing:.24em;text-transform:uppercase;color:var(--muted);margin-bottom:16px}
.member-hero .mh-role b{color:var(--ink)}
.member-hero h1{font-size:clamp(38px,6vw,64px);font-weight:900;letter-spacing:-.01em;line-height:1.1}
.member-hero .mh-tag{margin-top:14px;font-size:13.5px;font-weight:700;color:var(--muted)}
.member-hero .mh-lead{margin-top:22px;font-size:15.5px;line-height:2.05;color:var(--muted);max-width:520px}
.mh-facts{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:30px}
.mh-facts div{border:1px solid var(--line);padding:12px 15px;border-radius:6px}
.mh-facts .l{font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);font-weight:700}
.mh-facts .v{margin-top:5px;font-size:13px;font-weight:600;line-height:1.7}
.member-section{max-width:860px;margin:0 auto;padding:44px 48px}
.member-section h2{font-size:clamp(22px,3.4vw,32px);font-weight:900;letter-spacing:-.01em;margin-bottom:22px}
.member-section p{font-size:15px;line-height:2.15;color:var(--muted);margin-bottom:18px}
.member-cards{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:8px}
.member-cards .mc{border:1.5px solid var(--ink);padding:20px 20px;background:var(--paper)}
.member-cards .mc h4{font-size:15px;font-weight:800;margin-bottom:9px}
.member-cards .mc p{font-size:12.5px;line-height:1.95;color:var(--muted);margin:0}
.member-quote{max-width:860px;margin:0 auto;padding:20px 48px 10px;text-align:center}
.member-quote blockquote{border-top:1.5px solid var(--ink);border-bottom:1.5px solid var(--ink);padding:38px 20px}
.member-quote blockquote p{font-size:clamp(17px,2.6vw,22px);font-weight:700;line-height:1.9;max-width:640px;margin:0 auto}
.member-quote cite{display:block;margin-top:18px;font-style:normal;font-size:12px;color:var(--muted);letter-spacing:.1em}
.member-chips{display:flex;flex-wrap:wrap;gap:9px;justify-content:center;padding:26px 48px 0;list-style:none}
.member-chips li{font-size:11.5px;letter-spacing:.1em;border:1px solid var(--line);padding:7px 15px;border-radius:999px;color:var(--muted)}
.member-nav{display:grid;grid-template-columns:1fr 1fr;border-top:1.5px solid var(--ink);margin-top:60px}
.member-nav a{padding:34px 30px;transition:background .3s,color .3s}
.member-nav a:hover{background:var(--ink);color:var(--paper)}
.member-nav a.next{text-align:right;border-left:1.5px solid var(--ink)}
.member-nav small{font-size:10.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--muted);font-weight:700}
.member-nav strong{display:block;margin-top:8px;font-size:19px;font-weight:900}
.member-nav a:hover small{color:var(--paper);opacity:.7}
@media(max-width:900px){
  .member-hero{grid-template-columns:1fr;gap:28px;padding:110px 20px 40px}
  .member-hero .mh-photo img{height:360px}
  .member-section,.member-quote{padding-left:20px;padding-right:20px}
  .member-cards{grid-template-columns:1fr}
  .mh-facts{grid-template-columns:1fr 1fr}
}

/* ===== 深色模式 ===== */
html.dark{
  --paper:#101318;
  --ink:#f2f0ea;
  --panel:#171b22;
  --line:rgba(242,240,234,.22);
  --muted:rgba(242,240,234,.70);
}
/* 深色模式：选中态与链接可读性 */
html.dark ::selection{background:var(--acid);color:#0d0d0d}
html.dark .btn-ghost{border-bottom-color:var(--ink)}
html.dark .grain{opacity:.07}
/* 深色模式：修复硬编码深色文本（黑字黑底 → 转为浅色文本） */
html.dark .about-lede .grey{color:rgba(242,240,234,.55)}
html.dark .article .a-body p{color:rgba(242,240,234,.88)}
html.dark .legal-sec p{color:rgba(242,240,234,.86)}
html.dark .legal-sec li{color:rgba(242,240,234,.82)}
html.dark .legal-contact p{color:rgba(242,240,234,.82)}
html.dark .case-body{color:rgba(242,240,234,.88)}
html.dark .hero-desc{color:rgba(242,240,234,.78)}
html.dark .parent-line{color:rgba(242,240,234,.66)}
/* 深色模式：阴影加深，卡片层次更清晰 */
html.dark .work-card:hover{box-shadow:0 34px 60px -30px rgba(0,0,0,.75)}
html.dark .news-card:hover{box-shadow:0 30px 56px -28px rgba(0,0,0,.7)}
html.dark .btn-primary:hover{box-shadow:0 18px 40px -12px rgba(0,0,0,.7)}
html.dark .chat-panel{box-shadow:0 40px 80px -30px rgba(0,0,0,.7)}
html.dark .cookie-bar{box-shadow:0 24px 60px -24px rgba(0,0,0,.7)}
html.dark .grain{opacity:.09}
html.dark .hero-grid-lines i{background:rgba(236,234,229,.07)}
html.dark .brand .mark,
html.dark .foot-brand .mark{filter:invert(1)}
html.dark .k-orb{filter:invert(1);opacity:.16}
html.dark .form-card,
html.dark .legal-contact,
html.dark .msg.bot,
html.dark .tl-row:hover,
html.dark .chat-panel,
html.dark .mobile-nav{background:var(--panel)}
html.dark .chat-foot,
html.dark .chat-powered{background:#141720}
html.dark .chat-head{background:#1c2028;color:var(--paper)}
html.dark .cta-band,
html.dark .cookie-bar{background:#1c2028;color:var(--paper)}
html.dark .cta-band .btn-primary{background:var(--acid);color:#0d0d0d}
html.dark .cta-band .btn-primary .dot{background:#0d0d0d}
html.dark .cookie-btn.solid{color:#0d0d0d}
html.dark .cookie-btn.ghost{border-color:rgba(236,234,229,.35);color:rgba(236,234,229,.75)}
html.dark .preview-badge{color:#0d0d0d}
html.dark .svc:hover .arrow{color:#0d0d0d}
html.dark .work-card:hover{box-shadow:0 34px 60px -34px rgba(0,0,0,.65)}
html.dark .news-card:hover{box-shadow:0 30px 56px -32px rgba(0,0,0,.6)}
html.dark .mini-preview{background:#f6f6f4}
html.dark .field input,
html.dark .field textarea,
html.dark .field select{background:#1b2028;color:var(--ink);border-color:var(--line)}
html.dark .field input:focus,
html.dark .field textarea:focus,
html.dark .field select:focus{background:#20252f;border-color:var(--acid)}
html.dark .field input::placeholder,
html.dark .field textarea::placeholder{color:rgba(242,240,234,.45)}



/* 深色模式：导航栏适配 */
html.dark header.site.scrolled{background:rgba(13,16,20,.82);box-shadow:0 1px 0 var(--line)}
html.dark .lang-switch,
html.dark .header-cta{border-color:var(--ink);color:var(--ink)}
html.dark .lang-switch:hover,
html.dark .header-cta:hover{background:var(--ink);color:var(--paper)}
html.dark .nav-burger{border-color:var(--ink)}
html.dark .nav-burger span{background:var(--paper)}
html.dark .mobile-nav{border-left:1px solid var(--line)}
html.dark .mobile-nav li{border-bottom-color:var(--line)}
html.dark .mobile-nav a{color:var(--ink)}

/* 深色模式补充：杂项元素可读性 */
html.dark .hero-title .outline{-webkit-text-stroke-width:2px}
html.dark .msg.user{background:var(--ink);color:#101318}
html.dark .svc:hover .idx{color:var(--acid)}
html.dark .phil-card:hover .no{color:var(--acid)}
html.dark .next-case small,
html.dark .a-nav a small{color:var(--muted)}
html.dark .article .a-meta{color:var(--muted)}
html.dark .news-card .nc-tag{background:var(--ink);color:#101318}
html.dark .preview-flag{background:var(--ink);color:#101318}
html.dark .stat .lab,
html.dark .case-metrics .k{color:var(--muted)}
html.dark .marquee{background:var(--ink);color:#101318}
html.dark .marquee .sep{color:#0d6b00}
html.dark .scroll-hint::after{background:var(--ink)}
html.dark .progress{background:var(--acid)}
html.dark .nav-burger span{background:var(--ink)}
html.dark .mobile-nav a::after{color:var(--muted)}
html.dark .foot-legal a{color:var(--muted)}
html.dark .contact-info .ci-block h4{color:var(--muted)}

/* 主题切换按钮（SVG 图标） */
.theme-toggle{width:38px;height:38px;flex:none;border:1.5px solid var(--ink);border-radius:50%;
  background:transparent;color:var(--ink);cursor:pointer;display:grid;place-items:center;
  padding:0;transition:background .3s,color .3s,transform .3s}
.theme-toggle:hover{background:var(--ink);color:var(--paper);transform:rotate(-12deg)}
.theme-toggle .ico{display:block}
.theme-toggle .ico-sun{display:none}
html.dark .theme-toggle .ico-moon{display:none}
html.dark .theme-toggle .ico-sun{display:block}

/* 深色模式：导航栏彻底适配（未滚动也带深色毛玻璃底，杜绝浅色残留） */
html.dark header.site{background:rgba(16,19,24,.78);backdrop-filter:blur(14px)}
html.dark header.site.scrolled{background:rgba(11,14,18,.92)}
html.dark .brand-name,
html.dark nav.main a{color:var(--ink)}
html.dark .brand-name small{color:var(--muted)}

/* ===== 汉堡按钮 & 移动抽屉导航 ===== */
.nav-burger{display:none;width:42px;height:42px;border:1.5px solid var(--ink);border-radius:50%;
  background:transparent;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:4.5px;padding:0}
.nav-burger span{display:block;width:16px;height:1.8px;background:var(--ink);transition:transform .3s,opacity .3s}
.nav-burger.open span:nth-child(1){transform:translateY(6.3px) rotate(45deg)}
.nav-burger.open span:nth-child(2){opacity:0}
.nav-burger.open span:nth-child(3){transform:translateY(-6.3px) rotate(-45deg)}
.mobile-nav{position:fixed;inset:0;z-index:999;background:var(--paper);padding:110px 30px 40px;
  opacity:0;pointer-events:none;transform:translateY(-12px);transition:opacity .35s cubic-bezier(.16,1,.3,1),transform .35s cubic-bezier(.16,1,.3,1);
  display:flex;flex-direction:column}
.mobile-nav.open{opacity:1;pointer-events:auto;transform:none}
.mobile-nav ul{list-style:none;display:flex;flex-direction:column}
.mobile-nav li{border-bottom:1px solid var(--line)}
.mobile-nav a{display:flex;justify-content:space-between;align-items:center;padding:20px 4px;
  font-size:22px;font-weight:800;letter-spacing:.04em}
.mobile-nav a::after{content:"\2192";font-size:16px;color:var(--muted);font-weight:400}
.mobile-nav .mnav-foot{margin-top:auto;font-size:10px;letter-spacing:.22em;text-transform:uppercase;color:var(--muted)}

/* ===== 平板断点 ===== */
@media (max-width:1200px){
  .foot-grid{gap:34px}
  .case-visual{height:480px}
  .case-visual .mini-frame{width:1500px;height:2100px;transform:scale(.6)}
}

/* ===== 平板/小桌面断点 ===== */
@media (max-width:1020px){
  .wrap{padding:0 22px}
  header.site{padding:14px 22px}header.site.scrolled{padding:11px 22px}
  nav.main{display:none}
  .nav-burger{display:flex}
  .header-cta{display:none}
  .section{padding:84px 22px}
  .hero{padding:0 22px}
  .hero-meta{left:22px;right:22px;top:96px;flex-direction:column;gap:6px;align-items:flex-start}
  .hero-meta span:nth-child(2){display:none}
  .page-hero,.case-hero{padding-left:22px;padding-right:22px}
  .about-wrap{grid-template-columns:1fr;gap:50px}
  .svc{grid-template-columns:1fr;gap:14px;padding:32px 6px}
  .svc .arrow{display:none}
  .wc-7,.wc-5{grid-column:span 12}
  .news-grid{grid-template-columns:1fr 1fr}
  .contact-grid{grid-template-columns:1fr;gap:50px}
  .field-row{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr;gap:40px}
  .foot-grid .foot-brand{grid-column:span 2}
  .k-orb{opacity:.22;width:52vw;top:14vh}
  .case-meta{grid-template-columns:1fr 1fr}
  .case-meta>div{border-bottom:1.5px solid var(--ink)}
  .philosophy-grid{grid-template-columns:1fr}
  .phil-card{border-right:none;border-bottom:1.5px solid var(--ink)}
  .case-metrics{grid-template-columns:1fr 1fr}
  .case-metrics>div{border-right:none;border-bottom:1.5px solid var(--ink)}
  .tl-row{grid-template-columns:1fr;gap:10px}
  .group-wrap{grid-template-columns:1fr}
  .news-grid-list{grid-template-columns:1fr}
  .hero-title .row:nth-child(1) .line,
  .hero-title .row:nth-child(2) .line{font-size:clamp(40px,10vw,96px)}
  .hero-title .zh{letter-spacing:.16em;font-size:clamp(15px,2.4vw,26px);white-space:normal;max-width:100%;overflow-wrap:break-word}
  .hero{overflow-x:clip}
  .mini-preview{height:230px}
  .mini-frame{width:860px;height:1150px;transform:scale(.52);transform-origin:0 0;top:-14px;left:-16px}
  .case-visual{height:420px}
  .case-visual .mini-frame{width:1280px;height:1760px;transform:scale(.5)}
  .chat-panel{width:min(370px,calc(100vw - 32px));right:16px;bottom:88px;height:min(520px,calc(100vh - 120px))}
  .chat-fab{right:16px;bottom:16px;padding:13px 20px}
}

/* ===== 手机断点 ===== */
@media (max-width:640px){
  body{font-size:14.5px}
  .wrap{padding:0 18px}
  header.site{padding:12px 16px}header.site.scrolled{padding:9px 16px}
  .brand-name{font-size:12.5px}
  .brand-name small{font-size:8.5px}
  .mark{width:32px;height:32px}
  .lang-switch{padding:8px 13px;font-size:10.5px}
  .progress{height:2.5px}
  .section{padding:64px 18px}
  .sec-head{margin-bottom:40px}
  .sec-title{font-size:clamp(30px,9vw,44px)}
  .sec-note{font-size:13px}
  .page-hero{padding:120px 18px 44px}
  .page-hero h1{font-size:clamp(34px,10vw,52px)}
  .page-hero .ph-desc{font-size:13.5px;margin-top:20px}
  .case-hero{padding:120px 18px 40px}
  .case-hero h1{font-size:clamp(32px,9.5vw,50px)}

  .hero{min-height:100svh;padding:0 18px;overflow-x:clip}
  .hero-meta{top:86px;font-size:9.5px;letter-spacing:.18em}
  .hero-title{max-width:100%}
  .hero-title .row{min-width:0}
  .hero-title .line{max-width:100%}
  .hero-title .row:nth-child(1) .line,
  .hero-title .row:nth-child(2) .line{font-size:clamp(40px,13.5vw,72px)}
  .hero-title .row:nth-child(2) .line{flex-direction:column;align-items:flex-start;gap:10px;flex-wrap:wrap}
  .hero-title .zh{font-size:clamp(14px,4.2vw,22px);letter-spacing:.28em;white-space:normal;max-width:100%;overflow-wrap:break-word}
  .hero-title .outline{-webkit-text-stroke-width:1.5px}
  .k-orb{width:64vw;right:-8vw;top:12vh;opacity:.14}
  .hero-bottom{flex-direction:column;align-items:flex-start;margin-top:5vh;padding-bottom:88px;gap:26px}
  .hero-desc{font-size:13.5px;line-height:1.95}
  .hero-actions{width:100%;flex-wrap:wrap}
  .btn-primary{padding:15px 28px;font-size:11px;width:100%;justify-content:center}
  .btn-ghost{font-size:11px}
  .scroll-hint{display:none}

  .marquee{padding:15px 0}
  .marquee-track{gap:40px}
  .marquee span{font-size:12px;letter-spacing:.18em;gap:40px}

  .stats{grid-template-columns:1fr 1fr}
  .stat{padding:22px 16px 18px}
  .stat .num{font-size:clamp(30px,9vw,42px)}
  .stat .lab{font-size:9px;letter-spacing:.12em;line-height:1.6}

  .svc{padding:26px 4px;gap:10px}
  .svc .idx{font-size:11px}
  .svc .name{font-size:20px}
  .svc .name small{font-size:10px;letter-spacing:.16em;margin-top:6px}
  .svc .detail{font-size:12.5px;line-height:1.85}

  .work-grid{gap:16px}
  .work-card .info{padding:15px 16px;flex-wrap:wrap;gap:8px}
  .work-card .info h3{font-size:15px}
  .work-card .info p{font-size:9.5px;letter-spacing:.14em}
  .work-card .info .no a{font-size:11px}
  .mini-preview{height:190px}
  .mini-frame{width:760px;height:1000px;transform:scale(.46);top:-10px;left:-14px}
  .preview-badge{font-size:8.5px;padding:5px 10px;top:10px;left:10px}
  .case-visual{height:260px}
  .case-visual .mini-frame{width:900px;height:1220px;transform:scale(.42)}

  .news-grid{grid-template-columns:1fr;gap:16px}
  .news-card h3{font-size:17px;padding:18px 20px 6px}
  .news-card .nc-top{padding:18px 20px 14px}
  .news-card .nc-ex{padding:0 20px 18px;font-size:12.5px}
  .news-card .nc-foot{padding:13px 20px}

  .about-lede{font-size:clamp(19px,5.6vw,26px);line-height:1.6}
  .phil-card{padding:30px 22px}
  .phil-card h3{font-size:20px}
  .tl-row .yr{font-size:17px}
  .tl-row .evt h4{font-size:15.5px}
  .tl-row .evt p{font-size:13px}

  .case-meta{grid-template-columns:1fr 1fr}
  .case-meta>div{padding:16px 14px}
  .case-meta p{font-size:13px}
  .case-body{font-size:14.5px;margin:44px auto}
  .case-metrics{grid-template-columns:1fr}
  .case-metrics>div{padding:26px 18px}
  .case-metrics .v{font-size:clamp(30px,9vw,44px)}
  .next-case{padding:56px 18px}
  .next-case h3{font-size:clamp(24px,7.5vw,36px)}
  .a-nav a{font-size:13px}

  .article .a-body p{font-size:14.5px;line-height:2.05}
  .article h1{font-size:clamp(24px,7.4vw,34px)}

  .contact-grid{gap:40px}
  .form-card{padding:26px 20px}
  .form-card h3{font-size:19px}
  .field label{font-size:10px;letter-spacing:.14em}
  .field input,.field textarea,.field select{padding:13px 14px;font-size:15px}
  .field textarea{min-height:110px}
  .btn-primary{width:100%;justify-content:center;padding:16px 26px}
  .contact-info .ci-block p{font-size:15.5px}

  .success-panel{padding:150px 18px 90px}
  .success-panel .ok-ring{width:84px;height:84px}
  .success-panel .ok-ring svg{width:34px;height:34px}
  .success-panel h1{font-size:clamp(26px,8vw,40px) !important}

  footer.site{padding:60px 18px 30px}
  .foot-grid{grid-template-columns:1fr;gap:34px;padding-bottom:44px}
  .foot-grid .foot-brand{grid-column:auto}
  .foot-brand h4{font-size:15.5px;line-height:1.7}
  .foot-bottom{flex-direction:column;align-items:flex-start;gap:8px;font-size:9.5px;letter-spacing:.1em}

  .chat-fab{right:14px;bottom:14px;padding:12px 18px;font-size:11px}
  .chat-panel{right:10px;left:10px;width:auto;bottom:76px;height:min(62vh,480px)}
  .chat-head{padding:14px 16px}
  .chat-body{padding:14px}
  .msg{font-size:12.5px;max-width:88%}
  .chat-foot{padding:10px}
  .chat-foot input{padding:10px 12px;font-size:13px}
  .chat-powered{font-size:8.5px}

  .mobile-nav{padding:96px 22px 30px}
  .mobile-nav a{font-size:20px;padding:17px 2px}

  .legal-sec h2{font-size:16.5px}
  .legal-sec p{font-size:13.5px}
  .legal-contact{padding:20px 18px}
  .cookie-bar{left:10px;right:10px;bottom:10px}
  .cookie-inner{padding:16px 18px;gap:14px}
  .cookie-txt strong{font-size:12px}
  .cookie-txt p{font-size:11.5px}
  .cookie-btn{padding:10px 18px;font-size:10.5px}
  .foot-legal{flex-wrap:wrap;row-gap:6px}
  .foot-legal a{font-size:9.5px;letter-spacing:.08em}
}