/* ================================================================
   创客 CHUANGKE · V7 暖色 Bento 版
   奶油底 + 墨绿主色 + 便当盒网格 —— 与深色终端风、白底蓝商业风均不同
   ================================================================ */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Inter','Noto Sans SC',system-ui,-apple-system,'PingFang SC','Microsoft YaHei',sans-serif;
  background:#fff;color:#111827;line-height:1.65;overflow-x:hidden;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;border:none;background:none;color:inherit;cursor:pointer}
details summary::-webkit-details-marker{display:none}
details summary::marker{display:none}

:root{
  --teal:#0f766e;
  --teal-d:#0b5f57;
  --teal-l:#e4efed;
  --orange:#b97a11;
  --orange-l:#f9f1e2;
  --amber:#f0e3c2;
  --ink:#101828;
  --ink-2:#475467;
  --ink-3:#98a2b3;
  --line:#e4e7ec;
  --cream:#f5f7f9;
  --r:16px;
  --r-lg:24px;
  --sh:0 12px 32px -16px rgba(16,24,40,.16);
  --sh-lg:0 30px 80px -30px rgba(16,24,40,.26);
  --shell:1160px;
}
.shell{max-width:var(--shell);margin:0 auto;padding:0 24px}
.shell.narrow{max-width:820px}

/* ---------- Nav ---------- */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(255,255,255,.86);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid transparent;transition:.3s}
.nav.stuck{border-bottom-color:var(--line);box-shadow:0 6px 24px rgba(16,24,40,.06)}
.nav-in{max-width:var(--shell);margin:0 auto;padding:0 24px;height:64px;display:flex;align-items:center;gap:24px}
.logo{display:flex;align-items:center;gap:9px}
.logo-box{width:34px;height:34px;display:flex}
.logo-box svg{width:100%;height:100%}
.logo b{font-size:19px;font-weight:800;letter-spacing:.02em}
.links{display:flex;gap:2px;margin-left:auto}
.links a{padding:8px 13px;font-size:14px;color:var(--ink-2);border-radius:9px;font-weight:500;transition:.2s}
.links a:hover{color:var(--teal);background:var(--teal-l)}
.nav-btn{display:inline-flex;align-items:center;gap:7px;padding:10px 18px;border-radius:11px;background:var(--teal);color:#fff;font-size:13.5px;font-weight:600;box-shadow:0 6px 16px rgba(13,148,136,.28);transition:.25s}
.nav-btn svg{width:16px;height:16px}
.nav-btn:hover{background:var(--teal-d);transform:translateY(-1px)}
.burger{display:none;width:36px;height:36px;flex-direction:column;gap:5px;justify-content:center;align-items:center}
.burger span{width:20px;height:2px;background:var(--ink);border-radius:2px}

/* ---------- Hero ---------- */
.hero{position:relative;padding:140px 24px 20px;text-align:center;overflow:hidden;background:
  radial-gradient(700px 420px at 50% -8%,rgba(13,148,136,.1),transparent 60%),
  radial-gradient(500px 320px at 85% 30%,rgba(185,122,17,.05),transparent 60%),#fff}
.hero-shell{position:relative;max-width:840px;margin:0 auto}
.tagline{display:inline-flex;align-items:center;gap:9px;padding:8px 17px;border:1px solid rgba(13,148,136,.25);border-radius:99px;background:#fff;color:var(--teal-d);font-size:13px;font-weight:600;box-shadow:0 2px 8px rgba(13,148,136,.08)}
.dot{width:7px;height:7px;border-radius:50%;background:var(--teal);box-shadow:0 0 0 4px rgba(13,148,136,.16);animation:bl 2s infinite}
@keyframes bl{0%,100%{box-shadow:0 0 0 4px rgba(13,148,136,.18)}50%{box-shadow:0 0 0 8px rgba(13,148,136,.05)}}
.hero h1{font-size:clamp(38px,5.4vw,68px);font-weight:900;line-height:1.06;letter-spacing:-.03em;margin:26px 0 20px;color:var(--ink)}
.hero h1 em{font-style:normal;color:var(--teal);position:relative}
.hero h1 em::after{content:'';position:absolute;left:0;right:0;bottom:8px;height:12px;background:var(--amber);border-radius:99px;z-index:-1}
.lede{font-size:clamp(15px,1.5vw,18px);color:var(--ink-2);line-height:1.85;max-width:660px;margin:0 auto 34px}
/* 打字机（仅末尾一句） */
.type-lede .hl-teal{color:var(--teal-d);font-weight:700}
.type-lede .hl-orange{color:var(--orange);font-weight:700}
.type-lede .tail{white-space:pre}
.type-lede .cursor{display:inline-block;width:2.5px;height:1.05em;background:var(--teal);margin-left:3px;vertical-align:-0.15em;animation:cur .9s steps(1) infinite}
@keyframes cur{50%{opacity:0}}
.hero-row{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;align-items:center;margin-bottom:48px}
.btn-solid{display:inline-flex;align-items:center;gap:8px;padding:15px 28px;border-radius:14px;background:var(--teal);color:#fff;font-size:15.5px;font-weight:700;box-shadow:0 14px 32px -10px rgba(13,148,136,.55);transition:.25s}
.btn-solid svg{width:18px;height:18px}
.btn-solid:hover{background:var(--teal-d);transform:translateY(-2px)}
.btn-soft{display:inline-flex;align-items:center;gap:8px;padding:15px 26px;border-radius:14px;background:#fff;border:1.5px solid var(--line);color:var(--ink);font-size:15px;font-weight:600;transition:.25s}
.btn-soft:hover{border-color:var(--teal);color:var(--teal);transform:translateY(-2px)}
.btn-soft.sm{padding:10px 20px;font-size:13.5px}
.btn-plain{padding:14px 8px;color:var(--ink-2);font-size:14.5px;font-weight:500;transition:.2s;border-bottom:1px dashed transparent}
.btn-plain:hover{color:var(--orange);border-bottom-color:var(--orange)}
.hero-facts{display:flex;justify-content:center;gap:0;flex-wrap:wrap;max-width:660px;margin:0 auto;border-top:1px solid var(--line);padding-top:26px}
.hero-facts>div{flex:1;min-width:120px;padding:0 16px;border-right:1px solid var(--line)}
.hero-facts>div:last-child{border-right:none}
.hero-facts b{display:block;font-size:26px;font-weight:800;color:var(--teal);line-height:1}
.hero-facts span{font-size:12.5px;color:var(--ink-3);margin-top:6px;display:block}

/* ---------- Section ---------- */
.sec{padding:110px 24px;background:#fff}
.sec-cream{background:var(--cream)}
.head{text-align:center;max-width:700px;margin:0 auto 60px}
.kicker{display:inline-block;padding:6px 15px;background:var(--teal-l);color:var(--teal-d);border-radius:99px;font-size:12.5px;font-weight:700;letter-spacing:.06em;margin-bottom:16px}
.kicker.light{background:rgba(255,255,255,.16);color:#fff}
.head h2{font-size:clamp(28px,3.6vw,46px);font-weight:900;line-height:1.16;letter-spacing:-.025em;color:var(--ink);margin-bottom:14px}
.head p{font-size:16px;color:var(--ink-2);line-height:1.8}

/* ---------- Bento ---------- */
.bento{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.cell{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:26px;transition:.3s;position:relative;overflow:hidden;display:flex;flex-direction:column}
.cell:hover{transform:translateY(-4px);box-shadow:var(--sh);border-color:#9ec6bf}
.cell-ic{font-size:28px;margin-bottom:14px;display:block}
.cell h3{font-size:16.5px;font-weight:800;color:var(--ink);margin-bottom:9px}
.cell p{font-size:13.5px;color:var(--ink-2);line-height:1.7}
.cell-lg{grid-column:span 2;grid-row:span 2;background:linear-gradient(155deg,#0f766e,#0d9488 55%,#14b8a6);border:none;color:#fff;justify-content:flex-start}
.cell-lg h3{color:#fff;font-size:24px;margin-bottom:12px}
.cell-lg p{color:rgba(255,255,255,.88);font-size:15px;line-height:1.8;margin-bottom:22px}
.cell-lg .cell-ic{font-size:38px}
.cell-demo{display:flex;flex-direction:column;gap:9px;margin-top:auto}
.dl,.dr{padding:10px 14px;border-radius:13px;font-size:13px;max-width:88%;line-height:1.5}
.dl{background:rgba(255,255,255,.16);color:#fff;align-self:flex-start;border-bottom-left-radius:4px}
.dl i{font-style:normal;background:rgba(255,255,255,.25);border-radius:5px;padding:1px 6px;margin-right:7px;font-size:11px;font-weight:700}
.dr{background:#fff;color:var(--ink);align-self:flex-end;border-bottom-right-radius:4px;box-shadow:0 6px 16px rgba(0,0,0,.12)}
.cell.orange{background:var(--orange-l);border-color:#e8d8b2}
.cell.teal-soft{background:var(--teal-l);border-color:#bcd4cf}
.cell.wide{grid-column:span 2}
.schedule{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px}
.schedule span{background:var(--cream);border:1px solid var(--line);border-radius:10px;padding:8px 12px;font-size:12px;color:var(--ink-2)}
.schedule i{font-style:normal;color:var(--teal);font-weight:700;margin-right:6px}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:1fr auto 1fr auto 1fr;gap:0;align-items:start}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:30px;text-align:center;transition:.3s}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh)}
.step-n{width:44px;height:44px;border-radius:50%;background:var(--teal);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:15px;margin:0 auto 16px;box-shadow:0 8px 18px rgba(13,148,136,.28)}
.step h3{font-size:18px;font-weight:800;color:var(--ink);margin-bottom:10px}
.step p{font-size:13.5px;color:var(--ink-2);line-height:1.75;margin-bottom:16px}
.step-tag{display:inline-block;font-size:11.5px;color:var(--teal-d);background:var(--teal-l);padding:5px 12px;border-radius:8px;font-weight:600}
.step-line{align-self:center;width:40px;height:2px;background:repeating-linear-gradient(90deg,var(--teal) 0 6px,transparent 6px 12px);margin-top:-30px}
.start-note{margin-top:44px;text-align:center;font-size:15px;color:var(--ink-2);display:flex;gap:16px;justify-content:center;align-items:center;flex-wrap:wrap}

/* ---------- Preview ---------- */
.preview-frame{max-width:960px;margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-lg)}
.pf-bar{display:flex;align-items:center;gap:7px;padding:13px 18px;background:#f4f6f8;border-bottom:1px solid var(--line)}
.pf-dot{width:11px;height:11px;border-radius:50%}
.pf-dot.r{background:#ff5f57}.pf-dot.y{background:#febc2e}.pf-dot.g{background:#28c840}
.pf-bar b{margin-left:10px;font-size:12.5px;color:var(--ink-2);font-weight:600}
.pf-bar i{margin-left:auto;font-style:normal;font-size:11px;color:#0f766e;background:var(--teal-l);padding:3px 11px;border-radius:99px;font-weight:700}
.pf-body{display:grid;grid-template-columns:190px 1fr;min-height:400px}
.pf-side{background:#f4f6f8;border-right:1px solid var(--line);padding:18px 14px;display:flex;flex-direction:column;gap:4px}
.pf-nav{padding:10px 14px;border-radius:10px;font-size:13.5px;color:var(--ink-2);transition:.2s;cursor:default}
.pf-nav.on{background:var(--teal);color:#fff;font-weight:600}
.pf-main{padding:22px;display:flex;flex-direction:column;gap:18px}
.pf-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.pf-card{background:#f8fafc;border:1px solid var(--line);border-radius:13px;padding:16px;text-align:center}
.pf-card span{display:block;font-size:12px;color:var(--ink-3);margin-bottom:7px}
.pf-card b{font-size:26px;font-weight:800;color:var(--teal);line-height:1}
.pf-panel{background:#fff;border:1px solid var(--line);border-radius:13px;padding:18px}
.pf-panel-h{font-size:12px;color:var(--ink-3);font-weight:600;margin-bottom:12px;letter-spacing:.04em}
.pf-task{display:flex;align-items:center;gap:10px;padding:9px 0;border-bottom:1px dashed var(--line);font-size:13.5px;color:var(--ink)}
.pf-task:last-child{border-bottom:none}
.pf-task i{width:8px;height:8px;border-radius:50%;flex-shrink:0}
.s-run{background:#c2760a}
.s-ok{background:#22c55e}
.s-wait{background:#94a3b8}
.pf-task em{font-style:normal;margin-left:auto;font-size:11.5px;color:var(--ink-3);font-weight:600}
.pf-chat{background:#f4f6f8;border:1px solid var(--line);border-radius:13px;padding:18px;display:flex;flex-direction:column;gap:10px}
.pt{padding:9px 14px;border-radius:13px;font-size:13px;max-width:80%;line-height:1.5}
.pt.in{background:#fff;color:var(--ink-2);align-self:flex-start;border-bottom-left-radius:4px}
.pt.out{background:var(--teal);color:#fff;align-self:flex-end;border-bottom-right-radius:4px}
.preview-cap{text-align:center;font-size:12.5px;color:var(--ink-3);margin-top:18px}

/* ---------- Voices ---------- */
.voices{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.voice{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:30px;transition:.3s;display:flex;flex-direction:column}
.voice:hover{transform:translateY(-4px);box-shadow:var(--sh)}
.voice p{font-size:15px;color:var(--ink);line-height:1.85;font-style:italic;flex:1;margin-bottom:22px}
.who{display:flex;align-items:center;gap:12px;padding-top:18px;border-top:1px solid var(--line)}
.av{width:40px;height:40px;border-radius:50%;background:var(--teal-l);color:var(--teal-d);display:flex;align-items:center;justify-content:center;font-weight:800;flex-shrink:0}
.who b{display:block;font-size:14px;color:var(--ink)}
.who em{font-style:normal;font-size:12px;color:var(--ink-3)}

/* ---------- QA ---------- */
.qa{display:flex;flex-direction:column;gap:12px}
.qa details{background:#fff;border:1px solid var(--line);border-radius:15px;overflow:hidden;transition:.25s}
.qa details[open]{border-color:#bfdfdb;box-shadow:0 10px 28px -14px rgba(13,148,136,.2)}
.qa summary{list-style:none;display:flex;align-items:center;gap:14px;padding:19px 24px;cursor:pointer;font-size:16px;font-weight:700;color:var(--ink)}
.qa summary i{width:28px;height:28px;border-radius:50%;background:var(--teal-l);color:var(--teal-d);margin-left:auto;flex-shrink:0;position:relative;transition:.3s}
.qa summary i::before,.qa summary i::after{content:'';position:absolute;background:currentColor;left:50%;top:50%;transform:translate(-50%,-50%)}
.qa summary i::before{width:12px;height:2px}
.qa summary i::after{width:2px;height:12px}
.qa details[open] summary i{transform:rotate(45deg)}
.qa details p{padding:0 24px 20px;color:var(--ink-2);font-size:14.5px;line-height:1.85}

/* ---------- Notes ---------- */
.notes{display:flex;flex-direction:column;gap:10px;max-width:820px;margin:0 auto}
.note{display:flex;align-items:center;gap:18px;background:#fff;border:1px solid var(--line);border-radius:15px;padding:20px 24px;transition:.25s}
.note:hover{transform:translateX(6px);border-color:#bfdfdb;box-shadow:var(--sh)}
.note-cat{font-size:11.5px;font-weight:700;color:var(--teal-d);background:var(--teal-l);padding:5px 12px;border-radius:8px;flex-shrink:0}
.note b{font-size:16px;font-weight:700;color:var(--ink);flex:1}
.note em{font-style:normal;font-size:13px;color:var(--ink-3);flex-shrink:0}
.note:hover b{color:var(--teal-d)}

/* (底部联系卡板块已按需求移除) */

/* ---------- Footer ---------- */
.ft{background:#0d1320;color:#fff;padding:72px 24px 28px}
.ft-top{max-width:var(--shell);margin:0 auto;display:grid;grid-template-columns:1.8fr 1fr 1fr 1fr;gap:44px;padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.08)}
.ft-brand .logo b{color:#fff}
.ft-brand p{color:#94a3b8;font-size:14px;line-height:1.8;margin-top:16px}
.ft-col h4{font-size:13px;font-weight:800;color:#e2e8f0;margin-bottom:18px;letter-spacing:.04em}
.ft-col{display:flex;flex-direction:column;gap:12px}
.ft-col a,.ft-col button{color:#94a3b8;font-size:14px;transition:.2s;text-align:left;padding:0}
.ft-col a:hover,.ft-col button:hover{color:#5bc9b8}
.ft-bot{max-width:var(--shell);margin:24px auto 0;display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;font-size:13px;color:#64748b}
.ft-icp{display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.ft-icp a{color:#64748b;transition:.2s}
.ft-icp a:hover{color:#94a3b8}

/* ---------- to top ---------- */
.top-btn{position:fixed;right:24px;bottom:24px;width:46px;height:46px;border-radius:13px;background:var(--teal);color:#fff;display:flex;align-items:center;justify-content:center;box-shadow:0 10px 24px rgba(13,148,136,.35);opacity:0;pointer-events:none;transform:translateY(14px);transition:.3s;z-index:60}
.top-btn svg{width:20px;height:20px}
.top-btn.show{opacity:1;pointer-events:auto;transform:none}

/* ---------- Modal ---------- */
.modal{position:fixed;inset:0;z-index:500;display:none;align-items:center;justify-content:center;padding:20px}
.modal.show{display:flex}
.mask{position:absolute;inset:0;background:rgba(28,25,23,.55);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);animation:fd .25s}
@keyframes fd{from{opacity:0}to{opacity:1}}
.box{position:relative;width:100%;max-width:500px;background:#fff;border-radius:20px;padding:38px 34px;box-shadow:0 40px 90px rgba(15,23,42,.28);animation:pp .35s cubic-bezier(.2,.9,.3,1);max-height:90vh;overflow:auto}
.box-narrow{max-width:420px}
@keyframes pp{from{opacity:0;transform:translateY(20px) scale(.98)}to{opacity:1;transform:none}}
.x{position:absolute;top:16px;right:16px;width:34px;height:34px;border-radius:50%;background:#eef1f6;display:flex;align-items:center;justify-content:center;color:var(--ink-2);transition:.2s}
.x:hover{background:#e2e7ef;transform:rotate(90deg)}
.x svg{width:15px;height:15px}
.m-kick{display:inline-block;font-size:12px;font-weight:800;color:var(--teal-d);background:var(--teal-l);padding:6px 13px;border-radius:99px;margin-bottom:14px;letter-spacing:.04em}
.box h3{font-size:24px;font-weight:800;color:var(--ink);margin-bottom:8px;letter-spacing:-.01em}
.m-desc{font-size:14px;color:var(--ink-2);margin-bottom:22px;line-height:1.7}
.m-list{background:#fff;border:1px solid var(--line);border-radius:14px;padding:6px 18px;margin-bottom:22px}
.m-list>div{display:flex;justify-content:space-between;gap:12px;padding:11px 0;border-bottom:1px dashed var(--line);font-size:13.5px}
.m-list>div:last-child{border-bottom:none}
.m-list span{color:var(--ink-3);flex-shrink:0}
.m-list b{color:var(--ink);font-weight:600;text-align:right}
.m-main{display:flex;align-items:center;justify-content:center;width:100%;padding:15px;border-radius:14px;background:var(--teal);color:#fff;font-size:15.5px;font-weight:700;box-shadow:0 12px 28px -6px rgba(13,148,136,.5);transition:.25s}
.m-main:hover{background:var(--teal-d);transform:translateY(-2px)}
.m-foot{margin-top:16px;text-align:center;font-size:12.5px;color:var(--orange);background:var(--orange-l);border-radius:10px;padding:9px}
.m-links{display:flex;flex-direction:column;gap:10px}
.m-link{display:flex;align-items:center;gap:14px;padding:15px 16px;background:#fff;border:1px solid var(--line);border-radius:14px;transition:.25s;text-align:left}
.m-link:hover{border-color:#bfdfdb;transform:translateX(4px);box-shadow:var(--sh)}
.m-ic{width:44px;height:44px;border-radius:12px;background:var(--cream);display:flex;align-items:center;justify-content:center;font-size:20px;flex-shrink:0}
.m-link div{flex:1}
.m-link b{display:block;font-size:14.5px;color:var(--ink);font-weight:700}
.m-link em{font-style:normal;font-size:12px;color:var(--ink-3)}
.m-link>i{font-style:normal;color:#c3ccd6;font-size:18px}
.m-link:hover>i{color:var(--teal)}
.qr-wrap{text-align:center;background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px;margin-bottom:18px}
.qr-frame{width:180px;height:180px;margin:0 auto 14px;padding:10px;background:#fff;border-radius:14px;border:1px solid var(--line)}
.qr-frame img{width:100%;height:100%;object-fit:contain}
.qr-wrap p{font-size:13px;color:var(--ink-2)}
.m-svc{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.m-svc span{padding:10px 6px;background:var(--cream);border-radius:11px;font-size:11.5px;color:var(--ink-2);font-weight:600;text-align:center}

/* ---------- reveal ---------- */
.rv{opacity:0;transform:translateY(22px);transition:opacity .75s ease,transform .75s ease}
.rv.in{opacity:1;transform:none}

/* ---------- Responsive ---------- */
@media(max-width:1000px){
  .links{display:none}
  .links.open{display:flex;flex-direction:column;position:absolute;top:64px;left:16px;right:16px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:12px;box-shadow:0 26px 50px rgba(15,23,42,.14)}
  .links.open a{padding:13px 16px}
  .burger{display:flex}
  .bento{grid-template-columns:repeat(2,1fr)}
  .cell-lg{grid-column:span 2;grid-row:span 1}
  .cell.wide{grid-column:span 2}
  .steps{grid-template-columns:1fr;gap:16px}
  .step-line{display:none}
  .voices{grid-template-columns:1fr}
  .ft-top{grid-template-columns:1fr 1fr;gap:30px}
}
@media(max-width:680px){
  .sec{padding:80px 18px}
  .hero{padding:120px 18px 20px}
  .bento{grid-template-columns:1fr}
  .cell-lg,.cell.wide{grid-column:span 1}
  .pf-body{grid-template-columns:1fr}
  .pf-side{flex-direction:row;overflow-x:auto;border-right:none;border-bottom:1px solid var(--line)}
  .pf-nav{white-space:nowrap}
  .pf-cards{grid-template-columns:repeat(2,1fr)}
  .hero-facts>div{border-right:none;min-width:50%}
  .ft-top{grid-template-columns:1fr}
  .note{flex-wrap:wrap;gap:10px}
  .note em{width:100%}
  .nav-btn span{display:none}
}

/* ============ 商务质感精修 ============ */
/* Hero 呼吸光斑 */
.hero::before,.hero::after{content:'';position:absolute;border-radius:50%;filter:blur(80px);pointer-events:none;z-index:0}
.hero::before{width:420px;height:420px;left:-130px;top:50px;background:radial-gradient(circle,rgba(15,118,110,.16),transparent 70%);animation:floatA 11s ease-in-out infinite}
.hero::after{width:460px;height:460px;right:-150px;top:20px;background:radial-gradient(circle,rgba(185,122,17,.10),transparent 70%);animation:floatA 14s ease-in-out infinite reverse}
@keyframes floatA{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(30px,-26px) scale(1.08)}}
.hero-shell{position:relative;z-index:1}

/* 主按钮渐变 + 呼吸光 */
.btn-solid{background:linear-gradient(135deg,#0f766e,#0d8a7c)}
.btn-solid:hover{box-shadow:0 18px 42px -12px rgba(15,118,110,.6)}
@keyframes pulseGlow{0%,100%{box-shadow:0 14px 32px -10px rgba(15,118,110,.5)}50%{box-shadow:0 18px 44px -8px rgba(15,118,110,.75)}}
.hero-row .btn-solid{animation:pulseGlow 3s ease-in-out infinite}

/* 返回顶部按钮上移，为浮动咨询按钮让位 */
.top-btn{bottom:88px}

/* 浮动微信咨询按钮 */
.wx-fab{position:fixed;right:24px;bottom:24px;z-index:59;display:flex;align-items:center;gap:8px;padding:13px 18px;border-radius:999px;background:linear-gradient(135deg,#0f766e,#0b5f57);color:#fff;font-size:14px;font-weight:700;box-shadow:0 14px 30px -8px rgba(11,95,87,.5);transition:.25s;cursor:pointer}
.wx-fab:hover{transform:translateY(-2px);box-shadow:0 18px 38px -8px rgba(11,95,87,.65)}
.wx-fab svg{width:17px;height:17px;flex-shrink:0}

/* 卡片 hover 层次再提升 */
.cell:hover .cell-ic{transform:translateY(-2px) scale(1.06);transition:transform .3s ease}
.voice:hover .av{background:var(--teal);color:#fff;transition:.25s}

/* 列表 & 正文选择 */
::selection{background:rgba(15,118,110,.18)}
.qa summary{cursor:pointer;transition:.2s}
.qa summary:hover{color:var(--teal-d)}

@media(max-width:680px){
  .wx-fab span{display:none}
  .wx-fab{padding:14px}
}

/* ============ 等大深青卡（AI 主角卡） ============ */
.cell.dark{background:linear-gradient(150deg,#0f766e,#0d8a7c);border:none;color:#fff;justify-content:flex-start}
.cell.dark h3{color:#fff}
.cell.dark p{color:rgba(255,255,255,.88);line-height:1.75}
.cell.dark .dl i{background:rgba(255,255,255,.22)}
.cell.dark:hover{box-shadow:0 18px 42px -14px rgba(15,118,110,.5);border-color:transparent}

/* ============ 卡片强制等高等大（全设备生效） ============ */
/* 固定行高 300px：手机/平板/电脑上所有卡片同宽同高 */
.bento{grid-auto-rows:300px}
.bento .cell>p{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.bento .cell-demo,.bento .schedule{margin-top:auto}
.schedule{justify-content:center}
.schedule span{flex:1 1 calc(50% - 4px);text-align:center;white-space:nowrap;padding:7px 6px;font-size:11px}
.schedule span i{display:block;margin:0 0 2px}