/* ==========================================================================
   quez.css —— Quez 产品页样式
   来源：外部团队设计的 Quez 官网（2026-10-08 交付包），原为 dist/index.html 内联 <style>。
   处理：原样抽出为独立样式表（内容未改动），便于浏览器缓存与后续维护。
   追加：本文件末尾「本站集成层」为本仓库追加，用于承载全站导航/页脚的实体信息，
        以及无 JS 时的可见兜底，不覆盖上方任何设计稿规则。
   注意：本页为深色沉浸式产品页，不加载 styles.css，避免与全站浅色主题互相污染。
   ========================================================================== */

    :root{--bg:#050607;--panel:#0b0e11;--panel2:#10151a;--line:rgba(255,255,255,.09);--text:#f4f7f8;--muted:#8b969f;--ice:#c8efff;--blue:#6ccfff;--deep:#0875ae;--max:1180px}
    *{box-sizing:border-box}
    html{scroll-behavior:smooth;background:var(--bg)}
    body{margin:0;color:var(--text);background:var(--bg);font-family:-apple-system,BlinkMacSystemFont,"SF Pro Display","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.55;overflow-x:hidden}
    a{color:inherit;text-decoration:none}.wrap{width:min(var(--max),calc(100% - 48px));margin:auto}.eyebrow{font-size:12px;letter-spacing:.22em;text-transform:uppercase;color:var(--ice);font-weight:650}.muted{color:var(--muted)}
    .nav{position:fixed;z-index:30;top:0;left:0;right:0;border-bottom:1px solid transparent;transition:.3s;background:linear-gradient(180deg,rgba(5,6,7,.86),transparent);backdrop-filter:blur(14px)}
    .nav.scrolled{background:rgba(5,6,7,.82);border-color:var(--line)}.nav-inner{height:68px;display:flex;align-items:center;justify-content:space-between}.brand{font-weight:760;font-size:21px;letter-spacing:-.04em}.brand sup{color:var(--blue);font-size:7px;top:-1.1em;position:relative;margin-left:3px}.nav-links{display:flex;gap:28px;align-items:center;font-size:13px;color:#aeb8bf}.nav-links a:hover{color:white}.nav-cta{padding:9px 16px;border:1px solid rgba(200,239,255,.35);border-radius:999px;color:var(--ice)!important;background:rgba(108,207,255,.06)}
    section{position:relative}.hero{min-height:100svh;display:grid;place-items:center;padding:120px 0 44px;overflow:hidden}.hero::before{content:"";position:absolute;width:780px;height:560px;left:50%;top:47%;transform:translate(-50%,-50%);background:radial-gradient(ellipse,rgba(24,137,193,.2),transparent 65%);filter:blur(20px)}
    .hero-copy{text-align:center;position:relative;z-index:2}.hero h1{font-size:clamp(64px,11vw,142px);line-height:.82;letter-spacing:-.075em;margin:36px 0 25px;font-weight:760;background:linear-gradient(180deg,#fff 30%,#8fa1aa);-webkit-background-clip:text;color:transparent}.hero h2{font-size:clamp(24px,3.6vw,52px);letter-spacing:-.045em;margin:0;font-weight:560}.hero-sub{font-size:15px;color:#9da8af;margin:18px auto 28px;max-width:630px}.actions{display:flex;justify-content:center;gap:12px}.btn{display:inline-flex;align-items:center;gap:9px;padding:12px 20px;border-radius:999px;font-size:13px;border:1px solid var(--line);transition:.25s}.btn.primary{color:#071017;background:var(--ice);border-color:var(--ice);box-shadow:0 0 34px rgba(108,207,255,.18)}.btn:hover{transform:translateY(-2px)}
    .device-stage{height:410px;position:relative;margin-top:18px;perspective:1000px}.device{position:absolute;width:min(310px,62vw);height:410px;left:50%;top:51%;transform:translate(-50%,-50%) rotateZ(-7deg);animation:float 5s ease-in-out infinite;filter:drop-shadow(0 38px 55px rgba(0,0,0,.68)) drop-shadow(-10px -4px 34px rgba(93,203,255,.13))}.product-img{width:100%;height:100%;object-fit:contain;display:block;position:relative;z-index:2}.scan{position:absolute;inset:2% 0;border-radius:44px;overflow:hidden;z-index:3;pointer-events:none}.scan::after{content:"";position:absolute;left:-35%;top:0;width:28%;height:100%;background:linear-gradient(90deg,transparent,rgba(211,245,255,.24),transparent);transform:skewX(-15deg);animation:scan 4.8s ease-in-out infinite}
    .product-3d{position:absolute;width:300px;height:410px;left:50%;top:51%;transform:translate(-50%,-50%);perspective:1100px;cursor:grab;touch-action:none;user-select:none;outline:none}.product-3d:active{cursor:grabbing}.product-3d:focus-visible{filter:drop-shadow(0 0 14px rgba(108,207,255,.5))}.model-card{position:absolute;width:210px;height:364px;left:45px;top:11px;transform-style:preserve-3d;transform:rotateX(-5deg) rotateY(-28deg);filter:drop-shadow(0 38px 45px rgba(0,0,0,.58));will-change:transform}.model-face{position:absolute;inset:0;backface-visibility:hidden;-webkit-backface-visibility:hidden;display:grid;place-items:center}.model-face img{width:100%;height:100%;object-fit:fill;display:block;pointer-events:none}.model-front{transform:translateZ(12px)}.model-back{transform:rotateY(180deg) translateZ(12px)}.model-edge{position:absolute;background:linear-gradient(90deg,#53595d 0%,#737b80 18%,#c9d0d4 48%,#838b90 76%,#474d51 100%);box-shadow:inset 0 0 6px rgba(0,0,0,.4),0 0 5px rgba(211,241,252,.12)}.edge-right,.edge-left{width:24px;height:344px;top:10px;left:93px;border-radius:9px}.edge-right{transform:rotateY(90deg) translateZ(105px)}.edge-left{transform:rotateY(90deg) translateZ(-105px)}.edge-top,.edge-bottom{width:190px;height:24px;left:10px;top:170px;border-radius:9px}.edge-top{transform:rotateX(90deg) translateZ(182px)}.edge-bottom{transform:rotateX(90deg) translateZ(-182px)}.edge-bottom::before{content:"";position:absolute;width:44px;height:7px;border-radius:5px;background:#080d11;left:73px;top:8px;box-shadow:inset 0 1px 2px rgba(255,255,255,.16)}.edge-bottom::after{content:"";position:absolute;inset:8px 30px;background:radial-gradient(circle,#0b1115 0 1.4px,transparent 1.8px) 0 0/9px 7px repeat-x}.drag-hint{position:absolute;left:50%;bottom:2px;transform:translateX(-50%);font-size:10px;letter-spacing:.15em;color:#667780;white-space:nowrap}.drag-hint::before{content:"↔";color:#8edfff;margin-right:8px}.model-glow{position:absolute;width:230px;height:310px;left:35px;top:38px;border-radius:44%;background:radial-gradient(ellipse,rgba(78,193,244,.18),transparent 67%);filter:blur(22px);pointer-events:none}
    .record-demo{width:min(860px,100%);height:100%;margin:auto;display:grid;grid-template-columns:330px 1fr;gap:38px;align-items:center;text-align:left}.flat-product-wrap{height:410px;position:relative;display:grid;place-items:center}.flat-product-shell{width:235px;height:407px;position:relative;transition:transform .35s ease;filter:drop-shadow(0 34px 42px rgba(0,0,0,.62)) drop-shadow(0 0 24px rgba(77,190,239,.1))}.flat-product{width:100%;height:100%;object-fit:fill;display:block}.flat-product-wrap.recording .flat-product-shell{transform:translateY(-3px);filter:drop-shadow(0 38px 46px rgba(0,0,0,.62)) drop-shadow(0 0 34px rgba(79,202,255,.22))}.record-trigger{position:absolute;left:75.4%;top:5.7%;width:13.6%;height:12.9%;border:1px solid rgba(123,222,255,.55);border-radius:999px;background:rgba(76,203,255,.08);cursor:pointer;z-index:4;box-shadow:0 0 0 4px rgba(74,203,255,.05),0 0 18px rgba(74,203,255,.22);transition:.25s}.record-trigger::before{content:"";position:absolute;width:7px;height:7px;border-radius:50%;background:#76ddff;left:50%;top:50%;transform:translate(-50%,-50%);box-shadow:0 0 13px #4acbff}.record-trigger:hover{transform:scale(1.05);background:rgba(76,203,255,.14)}.record-trigger:focus-visible{outline:2px solid #b7efff;outline-offset:4px}.record-trigger.is-recording{border-color:#ff6b72;background:rgba(255,74,84,.12);box-shadow:0 0 0 7px rgba(255,65,77,.07),0 0 24px rgba(255,66,78,.3);animation:recPulse 1.4s ease-in-out infinite}.record-trigger.is-recording::before{background:#ff5a64;box-shadow:0 0 14px #ff5a64}.button-caption{position:absolute;top:96px;right:3px;width:128px;text-align:center;color:#74848d;font-size:10px;letter-spacing:.08em}.demo-panel{min-height:350px;border:1px solid rgba(255,255,255,.1);border-radius:20px;background:linear-gradient(145deg,rgba(16,21,25,.96),rgba(8,11,13,.96));box-shadow:0 28px 70px rgba(0,0,0,.42);padding:26px;position:relative;overflow:hidden}.demo-panel::before{content:"";position:absolute;width:230px;height:230px;border-radius:50%;right:-120px;top:-130px;background:radial-gradient(circle,rgba(53,187,244,.15),transparent 67%)}.demo-head{display:flex;align-items:center;justify-content:space-between;position:relative}.demo-status{display:flex;align-items:center;gap:8px;font-size:11px;letter-spacing:.1em;color:#75858e}.status-dot{width:7px;height:7px;border-radius:50%;background:#53636b}.demo-panel.recording .status-dot{background:#ff5f69;box-shadow:0 0 12px #ff5964;animation:blink 1s steps(2) infinite}.demo-panel.processing .status-dot{background:#76dfff;box-shadow:0 0 12px #55ceff}.demo-timer{font-variant-numeric:tabular-nums;font-size:12px;color:#a9b6bd}.demo-panel h3{font-size:22px;letter-spacing:-.035em;margin:24px 0 9px}.demo-hint{font-size:12px;color:#718089;margin:0}.demo-wave{height:54px;display:flex;align-items:center;gap:4px;margin:22px 0 17px;padding:0 2px}.demo-wave i{width:4px;height:8px;border-radius:999px;background:#34434c;transition:.2s}.demo-panel.recording .demo-wave i{background:#66d2ff;animation:waveLive .75s ease-in-out infinite alternate}.demo-panel.recording .demo-wave i:nth-child(3n){animation-delay:.18s}.demo-panel.recording .demo-wave i:nth-child(4n){animation-delay:.36s}.live-transcript{min-height:54px;padding:12px 14px;font-size:12px;color:#83939c;line-height:1.65}.process-steps{display:flex;align-items:center;margin-top:10px}.process-steps span{position:relative;flex:1;padding:7px 0 7px 20px;font-size:11px;color:#5e6d75;text-align:left;transition:.35s}    .process-steps span::before{content:"";position:absolute;left:5px;top:50%;width:6px;height:6px;margin-top:-3px;border-radius:50%;background:#28353c;transition:.3s}
    /* ★ 第 29 轮删掉 .process-steps span+span::after（1px×12px 竖线）。
       它定位在 left:0 —— 即「下一格 span 的左边缘」，而圆点在 left:5px：
       实到像素上这条线离圆点只有 5px，读起来是「圆点上裂了个缺口」而不是分隔符。
       四格标签宽度不等，也没法把它稳健地摆到两格之间的中点；四颗圆点 + 标签本身
       已经读成流程。属「装饰只留带信息量的」→ 删。 */
    .process-steps span.active{color:#bcecff}
    .process-steps span.active::before{background:#66d2ff;box-shadow:0 0 0 3px rgba(102,211,255,.16)}.demo-result{margin-top:14px;border-radius:15px;background:#dff5fd;color:#0c171c;padding:15px}.demo-result[hidden]{display:none}.demo-result strong{font-size:12px;display:block;margin-bottom:8px}.demo-result ul{padding:0 0 0 17px;margin:0}.demo-result li{font-size:10px;margin:5px 0;color:#40515a}.demo-result li::before{display:none}.recording-playback{width:100%;height:30px;margin-top:10px}.recording-playback[hidden]{display:none}.privacy-note{font-size:11px;color:#55646d;margin:12px 0 0;line-height:1.5}.demo-error{color:#ff9298}.demo-panel.done .demo-wave{display:none}@keyframes recPulse{50%{transform:scale(1.06)}}@keyframes blink{50%{opacity:.35}}@keyframes waveLive{from{height:7px}to{height:42px}}
    .hero-note{position:absolute;bottom:25px;font-size:11px;letter-spacing:.18em;color:#59656c;text-transform:uppercase}.scroll-line{display:inline-block;width:40px;height:1px;background:#52626b;vertical-align:middle;margin-right:10px}
    @keyframes float{50%{transform:translate(-50%,-54%) rotateZ(-4deg)}}@keyframes scan{0%,20%{left:-35%}70%,100%{left:120%}}
    .intro{padding:155px 0 100px;text-align:center}.intro h2,.section-title{font-size:clamp(42px,6vw,82px);letter-spacing:-.055em;line-height:1.06;margin:16px auto 24px}.intro h2 span,.section-title span{color:#75828a}.intro p{max-width:660px;margin:auto;color:#8f9ba3;font-size:17px}
    .value-grid{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);border-radius:26px;overflow:hidden;margin-top:70px;background:#090b0d}.value-card{padding:33px 28px;min-height:250px;border-right:1px solid var(--line);position:relative}.value-card:last-child{border-right:0}.num{font-size:11px;color:#5b6b74;letter-spacing:.14em}.value-card h3{font-size:23px;margin:65px 0 8px;letter-spacing:-.03em}.value-card p{font-size:13px;color:#7f8c94;margin:0}.glyph{position:absolute;right:24px;top:25px;width:38px;height:38px;border:1px solid rgba(108,207,255,.2);border-radius:50%;display:grid;place-items:center;color:var(--blue);font-size:16px;background:rgba(108,207,255,.04)}
    .workflow{padding:155px 0;overflow:hidden}.workflow-head{display:flex;align-items:end;justify-content:space-between;gap:20px}.workflow-head .section-title{margin:16px 0 0;max-width:720px}.workflow-head p{max-width:290px;font-size:14px;color:#7e8a92;margin:0 0 8px}.flow-box{margin-top:60px;border:1px solid var(--line);border-radius:28px;min-height:480px;background:radial-gradient(circle at 50% 50%,rgba(19,104,147,.1),transparent 55%),#080a0c;position:relative;padding:55px 44px;overflow:hidden}.flow-line{height:1px;background:linear-gradient(90deg,transparent,#5dcafc,transparent);position:absolute;left:8%;right:8%;top:50%;box-shadow:0 0 14px #4acbff}.flow-items{height:100%;display:grid;grid-template-columns:repeat(5,1fr);align-items:center;position:relative;z-index:2}.flow-item{text-align:center}.flow-icon{width:78px;height:78px;border-radius:23px;margin:0 auto 22px;display:grid;place-items:center;background:#0c1115;border:1px solid rgba(255,255,255,.11);box-shadow:0 16px 35px rgba(0,0,0,.42)}.flow-icon svg{width:28px;height:28px;stroke:var(--ice);fill:none;stroke-width:1.5}.flow-item b{display:block;font-size:14px}.flow-item small{font-size:10px;letter-spacing:.16em;color:#617079}.pulse{position:absolute;width:8px;height:8px;background:#d9f5ff;border-radius:50%;left:8%;top:calc(50% - 4px);box-shadow:0 0 18px #50ccff;animation:travel 6s linear infinite}@keyframes travel{to{left:91%}}
    .templates{padding:120px 0 165px}.template-stage{height:650px;border-radius:30px;border:1px solid var(--line);background:#080a0c;overflow:hidden;position:relative;display:grid;place-items:center}.template-stage::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at center,rgba(40,150,205,.14),transparent 35%)}.template-center{text-align:center;position:relative;z-index:3}.template-center strong{display:block;font-size:clamp(100px,15vw,190px);line-height:.9;letter-spacing:-.08em;background:linear-gradient(#fff,#76909e);-webkit-background-clip:text;color:transparent}.template-center span{font-size:15px;letter-spacing:.16em;color:#bddcea}.template-center p{font-size:13px;color:#69767e}.orbit{position:absolute;border:1px solid rgba(125,190,219,.09);border-radius:50%}.orbit.one{width:510px;height:510px}.orbit.two{width:870px;height:870px}.tag{position:absolute;padding:10px 16px;border:1px solid var(--line);background:rgba(14,18,21,.92);border-radius:999px;font-size:12px;color:#9dabb3;box-shadow:0 12px 30px rgba(0,0,0,.3)}.t1{top:13%;left:17%}.t2{top:21%;right:15%}.t3{top:48%;left:7%}.t4{top:57%;right:8%}.t5{bottom:15%;left:23%}.t6{bottom:10%;right:24%}.t7{top:9%;left:48%}
    .mic{padding:150px 0;background:linear-gradient(180deg,#050607,#070a0c,#050607)}.mic-layout{display:grid;grid-template-columns:.92fr 1.08fr;gap:80px;align-items:center}.mic-copy h2{font-size:clamp(48px,7vw,88px);line-height:1;letter-spacing:-.06em;margin:15px 0 25px}.big-stat{font-size:clamp(82px,12vw,160px);font-weight:700;letter-spacing:-.08em;line-height:1;color:#dff6ff}.big-stat small{font-size:16px;letter-spacing:.12em;margin-left:8px;color:#77909d}.specs{display:flex;gap:28px;color:#89969e;font-size:13px}.sound-scene{height:560px;position:relative;display:grid;place-items:center}.mini-device{width:220px;height:310px;position:relative;z-index:3;transform:rotate(-8deg);filter:drop-shadow(0 35px 55px rgba(0,0,0,.72)) drop-shadow(0 0 34px rgba(89,201,255,.12))}.mini-product{width:100%;height:100%;object-fit:contain;display:block}.wave{position:absolute;border:1px solid rgba(93,207,255,.18);border-radius:50%;animation:ripple 3s ease-out infinite}.w1{width:300px;height:300px}.w2{width:440px;height:440px;animation-delay:.6s}.w3{width:570px;height:570px;animation-delay:1.2s}.mic-dot{position:absolute;width:8px;height:8px;background:#a9e8ff;border-radius:50%;box-shadow:0 0 20px #56ccff}.d1{top:17%;left:46%}.d2{top:48%;right:6%}.d3{bottom:13%;right:31%}.d4{bottom:22%;left:15%}.d5{top:36%;left:4%}@keyframes ripple{0%{transform:scale(.75);opacity:0}35%{opacity:1}100%{transform:scale(1.08);opacity:0}}
    .distance{padding:150px 0}.distance-card{min-height:700px;border:1px solid var(--line);border-radius:30px;overflow:hidden;display:flex;align-items:center;position:relative;background:radial-gradient(circle at 78% 49%,rgba(33,153,205,.15),transparent 32%),linear-gradient(90deg,rgba(3,7,9,.98) 0%,rgba(3,7,9,.86) 48%,rgba(5,9,11,.65)),linear-gradient(180deg,#152129,#07090b)}.room{position:absolute;inset:0;perspective:700px;opacity:.46}.room::before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(90deg,transparent 0 12.2%,rgba(190,226,242,.07) 12.4% 12.55%),linear-gradient(168deg,transparent 0 45%,rgba(104,187,224,.09) 45.2% 45.5%,transparent 45.7%)}.room::after{display:none}.distance-copy{position:relative;z-index:3;padding:70px;max-width:600px;width:52%}.distance-copy h2{font-size:clamp(44px,5.5vw,74px);line-height:1.05;letter-spacing:-.06em;margin:17px 0 24px}.chips{display:flex;flex-wrap:wrap;gap:9px;margin-top:30px}.chip{border:1px solid rgba(190,231,250,.16);padding:9px 13px;border-radius:999px;color:#9bb0ba;font-size:12px;background:rgba(4,9,12,.46)}
    .sound-field{position:absolute;z-index:2;right:3.5%;top:50%;transform:translateY(-50%);width:45%;height:78%;border:1px solid rgba(137,218,249,.16);border-radius:25px;background:linear-gradient(180deg,rgba(12,23,29,.86),rgba(5,10,13,.94));box-shadow:0 25px 65px rgba(0,0,0,.38),inset 0 0 60px rgba(81,191,237,.035);overflow:hidden}.sound-field::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(112,202,239,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(112,202,239,.045) 1px,transparent 1px);background-size:34px 34px;mask-image:linear-gradient(#000,transparent 94%)}.field-head{position:absolute;z-index:3;left:22px;right:22px;top:18px;display:flex;align-items:center;justify-content:space-between}.field-head span{font-size:10px;letter-spacing:.17em;color:#81939d}.field-head b{font-size:11px;color:#bcecff;font-weight:650}.field-live{display:inline-flex!important;align-items:center;gap:7px}.field-live::before{content:"";width:6px;height:6px;border-radius:50%;background:#69d7ff;box-shadow:0 0 10px #4dcaff;animation:blink 1.2s ease-in-out infinite}.sound-map{position:absolute;inset:46px 10px 82px;width:calc(100% - 20px);height:calc(100% - 128px)}.band-base{stroke:#22353d;stroke-width:1;stroke-dasharray:4 5}.noise-band{fill:none;stroke:#5d7480;stroke-width:1.4}.voice-band{fill:none;stroke:#76dbff;stroke-width:1.6}.range-axis{stroke:#33505c;stroke-width:1}.range-tick{stroke:#33505c;stroke-width:1}.device-node{fill:#0c151a;stroke:#b8efff;stroke-width:1.5;filter:url(#blueGlow)}.device-mic{fill:#69d7ff}.device-led{fill:#69d7ff}.map-label{fill:#7e929c;font-size:10px;letter-spacing:.08em}.map-label.accent{fill:#bdeeff;font-size:12px;font-weight:700}.map-label.chip{font-weight:500;letter-spacing:.02em}.map-label.chip .chip-x{fill:#8fc7de}.clean-wave{position:absolute;z-index:3;left:20px;right:20px;bottom:15px;height:26px;display:flex;align-items:center;gap:4px;border-top:1px solid rgba(255,255,255,.07);padding-top:13px}.clean-wave b{font-size:9px;color:#7f9099;letter-spacing:.12em;margin-right:8px;white-space:nowrap}.clean-wave i{display:block;width:3px;height:7px;border-radius:3px;background:#72d9ff;box-shadow:0 0 7px rgba(84,205,255,.4);animation:cleanWave .7s ease-in-out infinite alternate}.clean-wave i:nth-child(3n){animation-delay:.15s}.clean-wave i:nth-child(4n){animation-delay:.3s}.range-badge{position:absolute;z-index:4;right:20px;top:52px;text-align:right}.range-badge strong{display:block;font-size:28px;letter-spacing:-.05em;color:#e5f8ff}.range-badge small{font-size:9px;letter-spacing:.12em;color:#6e818b}@keyframes cleanWave{from{height:5px;opacity:.55}to{height:19px;opacity:1}}
    .app-section{padding:145px 0}.app-head{text-align:center;max-width:800px;margin:auto}.app-head .section-title{margin-top:17px}.phone-stage{height:720px;position:relative;margin-top:35px;display:grid;place-items:center;overflow:hidden}.phone-stage::before{content:"";position:absolute;width:620px;height:620px;border-radius:50%;background:radial-gradient(circle,rgba(34,153,209,.18),transparent 65%)}.phone{width:274px;height:575px;border-radius:47px;background:#0b0f12;border:6px solid #2b3338;box-shadow:0 50px 100px rgba(0,0,0,.7),0 0 70px rgba(93,202,252,.1);position:relative;z-index:4;padding:34px 17px 18px}.phone::before{content:"";position:absolute;top:10px;left:50%;transform:translateX(-50%);width:82px;height:21px;background:#000;border-radius:20px}.phone-top{font-size:11px;color:#79878e}.phone-title{font-size:24px;font-weight:660;margin:18px 0 14px}.record-card{border:1px solid var(--line);border-radius:18px;padding:15px;background:#11161a}.record-time{font-size:10px;color:#78858d}.record-name{font-size:14px;margin:7px 0 15px}.bars{display:flex;gap:3px;height:35px;align-items:center}.bars i{width:3px;background:var(--blue);border-radius:3px;opacity:.75}.summary-card{margin-top:12px;border-radius:18px;background:#dff5fd;color:#111b20;padding:16px}.summary-card small{font-weight:650}.summary-card p{font-size:10px;line-height:1.5;margin:9px 0 0;color:#52616a}.floating-ui{position:absolute;width:260px;border:1px solid var(--line);border-radius:20px;padding:20px;background:rgba(13,17,20,.92);backdrop-filter:blur(12px);box-shadow:0 25px 60px rgba(0,0,0,.5)}.f1{left:8%;top:17%;transform:rotate(-4deg)}.f2{right:7%;top:28%;transform:rotate(4deg)}.f3{left:15%;bottom:12%;transform:rotate(2deg)}.floating-ui small{font-size:10px;color:#6f7c84;letter-spacing:.08em}.floating-ui b{font-size:14px;display:block;margin:8px 0 15px}.ui-line{height:6px;border-radius:6px;background:#26323a;margin:7px 0}.ui-line.accent{background:linear-gradient(90deg,#77d9ff 0 58%,#1c2830 58%)}
    .twin{padding:150px 0;overflow:hidden}.twin-panel{margin-top:58px;min-height:710px;border:1px solid var(--line);border-radius:30px;background:radial-gradient(circle at 50% 46%,rgba(46,169,225,.16),transparent 34%),#080a0c;position:relative;display:grid;place-items:center;overflow:hidden}.twin-panel::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(124,208,243,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(124,208,243,.04) 1px,transparent 1px);background-size:44px 44px;mask-image:radial-gradient(circle at center,#000,transparent 72%)}.twin-core{width:270px;height:270px;border-radius:50%;position:relative;z-index:4;display:grid;place-items:center;background:radial-gradient(circle at 38% 30%,#d8f6ff 0 3%,#57c7f4 11%,#17374a 42%,#081016 70%);box-shadow:0 0 35px rgba(100,211,255,.35),0 0 130px rgba(47,167,220,.22);animation:breathe 4s ease-in-out infinite}.twin-core::before,.twin-core::after{content:"";position:absolute;border:1px solid rgba(171,230,252,.24);border-radius:50%;inset:-34px}.twin-core::after{inset:-76px;border-style:dashed;animation:spin 18s linear infinite}.twin-face{width:110px;height:138px;border:1px solid rgba(214,246,255,.38);border-radius:52% 48% 45% 45%;position:relative;opacity:.78}.twin-face::before{content:"";position:absolute;left:25%;right:25%;top:44%;height:1px;background:linear-gradient(90deg,#8be0ff,transparent,#8be0ff);box-shadow:0 30px 0 rgba(139,224,255,.55)}.twin-name{position:absolute;bottom:58px;text-align:center;z-index:5}.twin-name b{display:block;font-size:14px}.twin-name small{font-size:10px;letter-spacing:.16em;color:#6f8792}.twin-card{position:absolute;width:285px;padding:22px;border:1px solid rgba(255,255,255,.1);border-radius:20px;background:rgba(13,17,20,.9);backdrop-filter:blur(14px);box-shadow:0 22px 60px rgba(0,0,0,.42);z-index:5}.twin-card .card-icon{width:35px;height:35px;border-radius:11px;display:grid;place-items:center;background:rgba(108,207,255,.1);border:1px solid rgba(108,207,255,.18);color:var(--ice);margin-bottom:28px}.twin-card h3{font-size:19px;margin:0 0 8px}.twin-card p{font-size:12px;color:#7c8991;margin:0}.twin-card small{display:block;margin-top:18px;color:#79d4fa;font-size:10px;letter-spacing:.08em}.tc1{left:6%;top:12%;transform:rotate(-2deg)}.tc2{right:5%;top:19%;transform:rotate(2deg)}.tc3{left:9%;bottom:10%;transform:rotate(2deg)}.tc4{right:8%;bottom:8%;transform:rotate(-2deg)}.connector{position:absolute;height:1px;width:31%;background:linear-gradient(90deg,transparent,rgba(100,210,255,.32),transparent);z-index:2}.c1{left:23%;top:32%;transform:rotate(20deg)}.c2{right:22%;top:37%;transform:rotate(-17deg)}.c3{left:22%;bottom:28%;transform:rotate(-18deg)}.c4{right:21%;bottom:27%;transform:rotate(16deg)}@keyframes breathe{50%{transform:scale(1.035);box-shadow:0 0 50px rgba(100,211,255,.42),0 0 150px rgba(47,167,220,.28)}}@keyframes spin{to{transform:rotate(360deg)}}
    .twin-proof{display:grid;grid-template-columns:repeat(3,1fr);margin-top:16px;border:1px solid var(--line);border-radius:22px;overflow:hidden;background:#090c0e}.proof-item{padding:28px 30px;border-right:1px solid var(--line)}.proof-item:last-child{border-right:0}.proof-item b{font-size:27px;display:block;color:#dff6ff;letter-spacing:-.04em}.proof-item span{font-size:12px;color:#74828a}
    .assets{padding:150px 0;text-align:center;overflow:hidden}.asset-cloud{margin-top:70px;min-height:520px;position:relative;display:grid;place-items:center}.vault{width:290px;height:350px;border-radius:38px;border:1px solid #42535d;background:linear-gradient(145deg,#151c21,#080b0d);position:relative;z-index:3;box-shadow:0 40px 90px rgba(0,0,0,.7),0 0 75px rgba(73,186,237,.12);display:grid;place-items:center}.vault::before{content:"";width:95px;height:95px;border:1px solid rgba(171,227,250,.35);border-radius:50%;box-shadow:inset 0 0 0 20px #0a0d0f,0 0 30px rgba(100,210,255,.12)}.note-card{position:absolute;width:230px;padding:16px 18px;border:1px solid var(--line);border-radius:16px;background:#0c1013;text-align:left;box-shadow:0 20px 45px rgba(0,0,0,.42)}.note-card b{font-size:13px}.note-card small{display:block;color:#66747c;margin-top:5px}.n1{left:5%;top:9%;transform:rotate(-7deg)}.n2{right:4%;top:15%;transform:rotate(6deg)}.n3{left:2%;bottom:10%;transform:rotate(4deg)}.n4{right:8%;bottom:6%;transform:rotate(-5deg)}
    /* ================= 07 真实场景 =================
       ★ 第 32 轮：四张卡的插图从「纯 CSS 手绘」换成 inline SVG。原来画法的三个可测问题：
         ① 承载形状的描边实测只有 1.02–1.37:1（WCAG 1.4.11 要求非文本 3:1）——
            .contract-row 与 .quote-card 等于不存在；
         ② 插图里用了 7/8/9/11/12/16px 六档字号，其中四档 ≤9px，与主站
            10.5/11/12/12.5/13/22 毫无关系；
         ③ 两处元素只有动画才成立（连线光点停在任意位置、声波柱高度随机），静止帧不可读。
       新画布 viewBox 0 0 524 230，与 1440 下 .scene-viz 的实测尺寸 1:1。
       ★ 描边和字走两条不同的路，这是本节最要紧的一条：
         · 描边 → vector-effect:non-scaling-stroke + 纯 px。缩放系数 k 对描边失效，
           1.25 / 1.5 / 1px 在每个断点都是 1.25 / 1.5 / 1px，永不落进亚像素；
           虚线节奏同理。这是第 28 轮「描边实到像素=viewBox 值×k」那条的下半句 ——
           与其按 k 反补偿，不如让 k 干脆管不着描边。
         · 字 → 保持 viewBox 用户单位（10.5 基准），随画布整体等比缩放。
           曾经用 em 反补偿字号、想让实到字号恒为 10.5px，实测这条路是错的：
           k = min(vizW/524, h/230)，621px 视口下 k 只有 0.42 而字号仍是 10.5px，
           字比形状大近 2 倍，`AI MEETING NOTES` 一类标签溢出 svg 视口 100.4px，
           被根元素默认的 overflow:hidden 裁掉 —— 属性全对，像素是断的。
           **插图是 aria-hidden 的装饰物，比例恒定比「小字可读」重要。** */
    .scenes{padding:140px 0}
    .scene-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:55px}
    .scene{min-height:430px;border:1px solid var(--line);border-radius:24px;padding:35px;display:flex;flex-direction:column;justify-content:flex-end;position:relative;overflow:hidden;background:#0b0e10;transition:transform .35s ease,border-color .35s ease,box-shadow .35s ease}
    .scene:hover{transform:translateY(-5px);border-color:rgba(121,216,255,.24);box-shadow:0 30px 70px rgba(0,0,0,.35)}
    .scene::before{content:"";position:absolute;inset:0;opacity:.8}
    .scene:nth-child(1)::before{background:radial-gradient(circle at 54% 35%,rgba(52,177,229,.15),transparent 38%),linear-gradient(160deg,#10191e,#050708 76%)}
    .scene:nth-child(2)::before{background:linear-gradient(135deg,rgba(70,178,223,.11),transparent 42%),linear-gradient(155deg,#111a1f,#050708 72%)}
    .scene:nth-child(3)::before{background:radial-gradient(circle at 28% 34%,rgba(122,152,255,.12),transparent 36%),linear-gradient(145deg,#11181e,#050708 75%)}
    .scene:nth-child(4)::before{background:linear-gradient(12deg,rgba(103,204,241,.05) 0 9%,transparent 9% 18%),linear-gradient(150deg,#111a1f,#050708 72%)}
    .scene>*{position:relative}
    .scene .scene-no{font-size:10px;letter-spacing:.16em;color:#6fcfff;margin-bottom:auto;z-index:4}
    .scene h3{font-size:27px;margin:0 0 7px;z-index:4}
    .scene>p{margin:0;color:#829098;font-size:13px;z-index:4}
    /* ★ 画布居中 + 上限 524px：≥1229px 视口下卡片会变宽，而全页字号刻度是封顶的
       （见 quez-light.css §8），插图跟着放大会与全页口径冲突。卡在 524 之后，
       插图的物理尺寸在 1229–3440px 之间恒等于 1440 下的样子。 */
    .scene-viz{position:absolute;z-index:2;left:50%;top:62px;transform:translateX(-50%);width:min(524px,calc(100% - 56px));height:230px;pointer-events:none;--sc-ink:#e8f4f9;--sc-accent:#79d8ff;--sc-mid:#7f97a2;--sc-soft:#1e2f38;--sc-fill:#0f1a20;--sc-white:#141f26;--sc-accent-tint:rgba(121,216,255,.10);--sc-hair:rgba(255,255,255,.10);--sc-check:#06131a}
    .scene-viz *{box-sizing:border-box}
    .scene-viz svg{display:block;width:100%;height:100%;font-size:10.5px}
    /* ★ 描边交给屏幕空间：k 不再影响线宽，虚线节奏也不再被缩放拉扯。 */
    .scene-viz svg *{vector-effect:non-scaling-stroke}
    /* 面 */
    .sc-fill{fill:var(--sc-fill)}
    .sc-white{fill:var(--sc-white)}
    .sc-soft{fill:var(--sc-soft)}
    .sc-mid{fill:var(--sc-mid)}
    .sc-accent{fill:var(--sc-accent)}
    .sc-accentTint{fill:var(--sc-accent-tint)}
    .sc-cone{fill:url(#scCone)}
    .sc-coneStop0{stop-color:var(--sc-accent);stop-opacity:.20}
    .sc-coneStop1{stop-color:var(--sc-accent);stop-opacity:.02}
    /* 线：1.25px / 1.5px / 1.0px 三档。写在纯 px 里，配合 non-scaling-stroke ——
       这三个数就是「屏幕上真实的像素」，不再需要按 k 反补偿。 */
    .sc-line{fill:none;stroke:var(--sc-mid);stroke-width:1.25px}
    .sc-lineA{fill:none;stroke:var(--sc-accent);stroke-width:1.5px}
    .sc-lineT{fill:none;stroke:var(--sc-hair);stroke-width:1px}
    .sc-dash{fill:none;stroke:var(--sc-accent);stroke-width:1px;stroke-dasharray:4px 5px;opacity:.55}
    .sc-coneEdge{fill:none;stroke:var(--sc-accent);stroke-width:1px;opacity:.34}
    .sc-halo{fill:none;stroke:var(--sc-accent);stroke-width:1px;opacity:.28}
    .sc-haloA{fill:none;stroke:var(--sc-accent);stroke-width:1px;opacity:.22}
    .sc-check{fill:none;stroke:var(--sc-check);stroke-width:1.4px;stroke-linecap:round;stroke-linejoin:round}
    /* 字：10.5 / 11 / 12.5 / 18 四档 */
    .sc-micro,.sc-microA,.sc-bodyI,.sc-bodyA,.sc-strong,.sc-num{font-family:inherit}
    .sc-micro{font-size:1em;letter-spacing:.12em;fill:var(--sc-mid)}
    .sc-microA{font-size:1em;letter-spacing:.12em;fill:var(--sc-accent)}
    .sc-bodyI{font-size:1.047619em;fill:var(--sc-ink)}
    .sc-bodyA{font-size:1.047619em;fill:var(--sc-accent)}
    .sc-strong{font-size:1.190476em;font-weight:600;fill:var(--sc-ink)}
    .sc-num{font-size:1.714286em;font-weight:700;letter-spacing:-.02em;fill:var(--sc-ink)}
    /* ★ 字号不反补偿 —— 这一节没有 @media，这是有意的。
       上一版按 k 反补偿字号（想让实到字号恒为 10.5px），实测两个后果：
         · k = min(vizW/524, h/230)。≤620 断点 .scene-viz 高度只有 220px，
           于是 611–620 段 k 恒为 0.9565；照「k=1 不用补偿」的假设走，
           实到字号掉到 10.04px，描边 0.957px（又回到亚像素发虚）。
         · 621–900 段画布只有 220–360px 宽，字号却仍是 10.5px，文字溢出视口。
       现在：字随画布等比缩放，描边走 non-scaling-stroke（不缩）。 */
    .final{min-height:88svh;display:grid;place-items:center;text-align:center;overflow:hidden}.final::before{content:"";position:absolute;width:820px;height:520px;background:radial-gradient(ellipse,rgba(50,167,220,.18),transparent 65%);filter:blur(15px)}.final h2{font-size:clamp(70px,14vw,170px);margin:0;letter-spacing:-.08em;line-height:.8}.final h3{font-size:clamp(28px,4vw,50px);letter-spacing:-.04em;margin:35px 0 12px}.final p{color:#839098;margin-bottom:30px}.footer{border-top:1px solid var(--line);padding:30px 0;color:#66737a;font-size:11px}.footer-inner{display:flex;justify-content:space-between;gap:20px}
    .reveal{opacity:0;transform:translateY(24px);transition:opacity .8s ease,transform .8s ease}.reveal.in{opacity:1;transform:none}
    @media(max-width:900px){.nav-links a:not(.nav-cta){display:none}.value-grid{grid-template-columns:repeat(2,1fr)}.value-card:nth-child(2){border-right:0}.value-card:nth-child(-n+2){border-bottom:1px solid var(--line)}.mic-layout{grid-template-columns:1fr;gap:20px}.mic-copy{text-align:center}.specs{justify-content:center}.sound-scene{height:480px}.floating-ui{width:210px}.f1{left:0}.f2{right:0}.f3{display:none}.distance-card{min-height:620px}.distance-copy{padding:45px}.scene-grid{grid-template-columns:1fr 1fr}.workflow-head{display:block}.workflow-head p{margin-top:18px}.flow-box{min-height:660px}.flow-items{grid-template-columns:1fr;gap:18px}.flow-item{display:flex;align-items:center;text-align:left;gap:18px}.flow-icon{width:58px;height:58px;margin:0}.flow-line{width:1px;height:auto;top:9%;bottom:9%;left:73px;right:auto;background:linear-gradient(transparent,#5dcafc,transparent)}.pulse{left:69.5px;top:8%;animation:travelV 6s linear infinite}.twin-panel{min-height:920px}.twin-core{width:220px;height:220px}.twin-card{width:240px}.tc1{left:3%;top:8%}.tc2{right:3%;top:12%}.tc3{left:3%;bottom:8%}.tc4{right:3%;bottom:10%}@keyframes travelV{to{top:91%}}}
    @media(max-width:620px){.wrap{width:min(var(--max),calc(100% - 28px))}.hero{padding-top:100px}.hero h1{font-size:72px}.hero h2{font-size:30px}.hero-sub{font-size:13px;padding:0 12px}.device-stage{height:290px}.device{width:88vw;border-radius:18px}.intro,.workflow,.templates,.mic,.distance,.app-section,.twin,.assets,.scenes{padding:95px 0}.value-grid{grid-template-columns:1fr}.value-card{min-height:205px;border-right:0!important;border-bottom:1px solid var(--line)}.value-card:last-child{border-bottom:0}.value-card h3{margin-top:42px}.flow-box{padding:38px 24px}.flow-line{left:53px}.pulse{left:49.5px}.template-stage{height:590px}.orbit.one{width:360px;height:360px}.orbit.two{width:650px;height:650px}.tag{font-size:10px}.t1{left:4%}.t2{right:3%}.t3{left:1%}.t4{right:1%}.t5{left:5%}.t6{right:4%}.sound-scene{height:400px}.w2{width:360px;height:360px}.w3{width:440px;height:440px}.distance-card{min-height:580px}.distance-copy{padding:30px}.phone-stage{height:650px}.phone{width:250px;height:530px}.floating-ui{display:none}.twin-panel{min-height:970px;display:block;padding:305px 15px 240px}.twin-core{width:170px;height:170px;margin:auto}.twin-face{width:75px;height:95px}.twin-name{left:0;right:0;bottom:240px}.twin-card{width:calc(50% - 23px);padding:16px}.twin-card .card-icon{margin-bottom:15px}.twin-card h3{font-size:15px}.twin-card p{font-size:10px}.tc1{left:8px;top:18px}.tc2{right:8px;top:45px}.tc3{left:8px;bottom:20px}.tc4{right:8px;bottom:45px}.connector{display:none}.twin-proof{grid-template-columns:1fr}.proof-item{border-right:0;border-bottom:1px solid var(--line)}.proof-item:last-child{border-bottom:0}.asset-cloud{min-height:600px}.note-card{width:190px}.n1{left:0}.n2{right:0}.n3{left:0}.n4{right:0}.scene-grid{grid-template-columns:1fr}.scene{min-height:340px}.footer-inner{flex-direction:column}.actions{flex-wrap:wrap}}
    @media(max-width:620px){.device-stage{height:350px}.device{width:250px;height:350px}.product-3d{width:255px;height:350px}.model-card{width:179px;height:310px;left:38px;top:10px}.model-front{transform:translateZ(10px)}.model-back{transform:rotateY(180deg) translateZ(10px)}.edge-right,.edge-left{width:20px;height:292px;top:9px;left:79.5px;border-radius:8px}.edge-right{transform:rotateY(90deg) translateZ(89.5px)}.edge-left{transform:rotateY(90deg) translateZ(-89.5px)}.edge-top,.edge-bottom{width:161px;height:20px;left:9px;top:145px;border-radius:8px}.edge-top{transform:rotateX(90deg) translateZ(155px)}.edge-bottom{transform:rotateX(90deg) translateZ(-155px)}.edge-bottom::before{width:38px;left:61px;top:6px}.edge-bottom::after{inset:6px 25px}.model-glow{width:205px;height:275px;left:25px;top:28px}.mini-device{width:175px;height:245px}}
    @media(max-width:700px){.hero{padding-bottom:76px}.device-stage{height:765px!important}.record-demo{grid-template-columns:1fr;height:auto;gap:4px}.flat-product-wrap{height:380px}.flat-product-shell{width:210px;height:364px}.button-caption{right:calc(50% - 123px);top:96px}.demo-panel{min-height:340px;padding:20px;text-align:left}.process-steps span{font-size:10.5px;padding-left:17px}.hero-note{display:none}}
    /* ★ 第 29 轮：窄到 340px 以下时，4 列各只剩 ~45px，5 字的「结构化整理」会折行
       （实测 320 下该项 46.5px 高、其余 30.3px）。原来这里是用 font-size:8px 硬塞的 ——
       8px 中文实到只有 ~8px 高，属「看得见但读不出」。改成 2×2：每格 ~108px，10.5px 读得清。 */
    @media(max-width:340px){.process-steps{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));row-gap:2px}}
    @media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.device,.scan::after,.wave,.pulse,.record-trigger{animation:none}.reveal{opacity:1;transform:none}}
    .button-caption{display:none!important}
    .flat-product-shell{transform-origin:50% 58%;will-change:transform;animation:productFloat 5.2s cubic-bezier(.45,0,.25,1) infinite}
    .flat-product-shell::after{content:"";position:absolute;inset:0;border-radius:34px;background:linear-gradient(108deg,transparent 35%,rgba(209,244,255,.2) 49%,transparent 63%);background-size:260% 100%;background-position:135% 0;mix-blend-mode:screen;opacity:.38;pointer-events:none;animation:productSheen 6.4s ease-in-out infinite}
    .record-trigger{animation:buttonBreathe 2.8s ease-in-out infinite}
    .flat-product-wrap.recording .flat-product-shell{animation:productLive 1.35s ease-in-out infinite}
    .flat-product-wrap.recording .flat-product-shell::after{animation-duration:2.2s;opacity:.52}
    @keyframes productFloat{0%,100%{transform:translate3d(0,1px,0) rotate(-.35deg)}50%{transform:translate3d(0,-8px,0) rotate(.45deg)}}
    @keyframes productLive{0%,100%{transform:translate3d(0,-2px,0) scale(1)}50%{transform:translate3d(0,-6px,0) scale(1.008)}}
    @keyframes productSheen{0%,24%{background-position:135% 0}68%,100%{background-position:-90% 0}}
    @keyframes buttonBreathe{0%,100%{box-shadow:0 0 0 4px rgba(74,203,255,.04),0 0 14px rgba(74,203,255,.16)}50%{box-shadow:0 0 0 7px rgba(74,203,255,.08),0 0 25px rgba(74,203,255,.3)}}
    .device-stage{height:560px}
    @media(min-width:701px){.record-demo{width:min(1020px,100%);grid-template-columns:320px 1fr;gap:34px}}
    .demo-panel{min-height:480px;padding:20px}.demo-panel h3{margin:16px 0 8px}.demo-hint{font-size:13px}.demo-wave{height:30px;margin:16px 0 0}
    /* 结果态（.done）实测 654.7px，比 .device-stage 的 560px 高 94.7px。.record-demo 是
       align-items:center，所以面板会向上下各溢出 47.4px —— 上半部分正好盖住 hero 的
       .actions 两个 CTA（实测 elementFromPoint 命中 .demo-panel，2/2 点不到）。
       手动点击时这个遮挡一直在，只是几乎没人点到；首屏自动演示让它在 100% 的访问里
       出现，所以必须收掉。改成顶对齐：顶边钉在 529.8px（CTA 底边 511.8px），只向下长。 */
    .demo-panel.done{align-self:start}
    .live-transcript{min-height:104px;max-height:120px;overflow:auto;padding:0;scrollbar-width:thin;scrollbar-color:#29404c transparent}
    .dialogue-line{display:grid;grid-template-columns:84px 1fr;gap:12px;padding:8px 0;border-bottom:1px solid rgba(255,255,255,.055);align-items:start}.dialogue-line:last-child{border-bottom:0}.dialogue-line.new{animation:dialogueIn .36s ease both}
    .dialogue-speaker{display:flex;flex-direction:column;line-height:1.3}.dialogue-speaker b{font-size:12px;color:#bcecff}.dialogue-speaker small{font-size:11px;color:#60727c;margin-top:2px}.dialogue-text{font-size:12px;color:#a7b6be;line-height:1.6}
    .demo-result{padding:12px}.demo-result ul{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;padding:0;margin:0}.demo-result li{list-style:none;margin:0;padding:8px 11px 8px 13px;border:1px solid rgba(7,33,44,.1);border-radius:10px;background:rgba(255,255,255,.42);font-size:12px;line-height:1.55;position:relative;overflow:hidden}.demo-result li b{display:inline-flex;align-items:baseline;gap:5px;color:#0b2733;font-size:10.5px;font-weight:600;letter-spacing:.01em;margin-bottom:4px}.demo-result li b i{font-style:normal;font-size:10.5px;font-weight:500;letter-spacing:.06em;opacity:.6}.demo-result li span{display:block;color:#40545d}
    /* ★★ 第 29 轮：结果卡左侧 2px 语义色栏（几何落 base，颜色交浅色层）。
       坑：本文件 L24 的老规则写了 .demo-result li::before{display:none}（当年为压掉
       浏览器默认列表 marker）。浅色层只覆盖了 content / position / left / top /
       bottom / width / background / opacity —— 唯独没覆盖 display，于是 display:none
       继续生效：getComputedStyle(li,'::before') 照样报出 rgb(30,94,255)、width 2px，
       但屏幕上一像素都没有（逐像素扫描：1px 边框 eeeff0 之后直接是 ffffff）。
       → 伪元素的「几何」必须由 base 自己显式给全（含 display），浅色层只给颜色。 */
    .demo-result li{--cat:#7b8b94;--cat-bg:rgba(255,255,255,.06)}
    .demo-result li::before{content:"";display:block;position:absolute;left:0;top:0;bottom:0;width:2px;background:var(--cat);opacity:.9}
    /* ★ 第 29 轮新增的四个类（.console-block / .block-head / .block-label / .block-title
       / .block-meta）在这里给基础值，浅色取值见 quez-light.css §11.3–11.4。
       新元素必须落基础层 —— 只写浅色覆盖会让深色存档稿拿到「没有底色也没有边框」的空壳。 */
    .console-block{border:1px solid rgba(255,255,255,.07);border-radius:12px;background:#0b0f12;padding:9px 12px}
    .block-head{display:flex;align-items:baseline;justify-content:space-between;gap:10px;margin-bottom:6px}
    .block-label{font-size:11px;font-weight:600;letter-spacing:.08em;color:#5e6d75}
    /* ★ 第 29 轮：`.block-title` 要写成 `.demo-result .block-title`。
       标题本身是 <strong class="block-title">，而本文件早先有一条
       `.demo-result strong{font-size:12px}` —— (0,1,1) 压过 `.block-title` (0,1,0)，
       深色存档态的分区标题会被抢成 12px（浅色层因为带 html[data-theme] 才是 12.5px）。
       加一层类名把 base 自己的值要回来，两套主题同档。
       ★ 这里**不写 color**：`.demo-result` 在本层是原稿的淡蓝 #dff5fd（不是深色面），
       继承它自己的 color:#0c171c 才有 16.1:1；曾经写过 #dbe8ed，那是在淡蓝底上
       只有 **1.11:1** —— 标题等于消失（深色存档态截图为证）。 */
    .demo-result .block-title{font-size:12.5px;font-weight:600}
    .block-meta{font-size:11px;color:#5e6d75;font-variant-numeric:tabular-nums}
    /* 滚到底之后顶部那行会被切一半（截图为证：露出 Alex 的 role 标签「Business」孤零零一行）。
       给滚动体加两端遮罩，把「裁切」变成「淡出」。
       ★ 遮罩加在 .live-transcript（内容层）而不是 .console-block：加在外壳上会连边框一起
         吃成半透明，出现「上边框缺一截」。 */
    .live-transcript{-webkit-mask-image:linear-gradient(to bottom,transparent 0,#000 14px,#000 calc(100% - 10px),transparent 100%);mask-image:linear-gradient(to bottom,transparent 0,#000 14px,#000 calc(100% - 10px),transparent 100%)}
    @keyframes dialogueIn{from{opacity:0;transform:translateY(5px)}to{opacity:1;transform:none}}
    @media(max-width:700px){.device-stage{height:1240px!important}.demo-panel{min-height:540px}.live-transcript{min-height:150px;max-height:176px}.dialogue-line{grid-template-columns:76px 1fr}.demo-result ul{grid-template-columns:1fr}}
    /* ★★ 第 31 轮：≤700px 下 .device-stage 的预留高度必须跟着面板「结果态」的实际高度走。
       窄屏时 .record-demo 是单列堆叠（机身 380 + gap 4 + 面板），.device-stage 是固定高、
       .hero 是 overflow:hidden —— 预留给小了，面板底部不是被挡住，是**根本不渲染**。
       实测（结果态面板高 → 需要 stage 高；旧值 980）：
         700  826 → 1210（裁 141px，结果区底少 91px）
         620  845 → 1229
         480  882 → 1266
         390  921 → 1305（裁 249px，结果区底少 200px，脚注整条看不见）
         360  940 → 1324
         320 1007 → 1391（裁 335px）
       按下面四档预留。★ 不用 height:auto —— 预留本身是为了防止演示跑到结果态时 hero
       突然长高、把下方内容整体顶下去（CLS）；去掉预留等于用一个更显眼的毛病换掉裁切。
       改面板文案后这里需要按上表重测。 */
    @media(max-width:620px){.device-stage{height:1280px!important}}
    @media(max-width:480px){.device-stage{height:1340px!important}}
    @media(max-width:360px){.device-stage{height:1410px!important}}
    .twin .twin-panel,.twin .twin-proof{display:none}.twin .section-title{max-width:820px}.twin-lab{margin-top:54px;border:1px solid rgba(255,255,255,.11);border-radius:28px;background:linear-gradient(145deg,#0b0f12,#07090b);box-shadow:0 32px 90px rgba(0,0,0,.42);overflow:hidden}.twin-tabs{display:flex;gap:8px;padding:14px;border-bottom:1px solid var(--line);background:rgba(255,255,255,.015)}.twin-tab{appearance:none;border:1px solid transparent;border-radius:999px;padding:11px 18px;background:transparent;color:#74838b;font:600 13px inherit;cursor:pointer;transition:.25s}.twin-tab:hover{color:#dff6ff;background:rgba(105,208,255,.05)}.twin-tab.active{color:#071117;background:var(--ice);box-shadow:0 0 28px rgba(108,207,255,.18)}.twin-console{display:grid;grid-template-columns:1fr 250px 1.15fr;min-height:500px}.twin-sources,.twin-output{padding:30px}.twin-sources{border-right:1px solid var(--line)}.twin-output{border-left:1px solid var(--line);display:flex;flex-direction:column}.lab-label{font-size:11px;letter-spacing:.16em;color:#61727b;text-transform:uppercase;margin-bottom:18px}.source-stack{display:grid;gap:10px}.source-card{padding:15px;border:1px solid rgba(255,255,255,.08);border-radius:14px;background:#0b1013;transition:.35s}.source-card.active{border-color:rgba(112,216,255,.38);background:rgba(64,181,229,.07);transform:translateX(4px);box-shadow:0 0 24px rgba(60,190,245,.08)}.source-card b{display:block;font-size:14px;color:#dbe8ed;margin-bottom:4px}.source-card p{font-size:13px;color:#7d8d95;margin:0}.source-card small{display:block;color:#52626b;font-size:11px;margin-top:8px}.memory-meter{margin-top:auto;padding-top:25px}.meter-head{display:flex;justify-content:space-between;color:#697982;font-size:12px}.meter-track{height:4px;border-radius:3px;background:#182128;margin-top:9px;overflow:hidden}.meter-fill{height:100%;width:92%;background:linear-gradient(90deg,#3cbcf4,#bceeff);box-shadow:0 0 12px #4acbff}.twin-engine{position:relative;display:grid;place-items:center;overflow:hidden;background:radial-gradient(circle,rgba(53,174,226,.12),transparent 62%)}.engine-orbit{position:absolute;width:190px;height:190px;border:1px solid rgba(97,205,251,.2);border-radius:50%;animation:engineSpin 12s linear infinite}.engine-orbit::before,.engine-orbit::after{content:"";position:absolute;width:7px;height:7px;border-radius:50%;background:#70d9ff;box-shadow:0 0 15px #4acbff}.engine-orbit::before{left:18px;top:26px}.engine-orbit::after{right:20px;bottom:25px}.engine-orbit.two{width:136px;height:136px;animation-direction:reverse;animation-duration:8s}.engine-core{position:relative;z-index:2;width:92px;height:92px;border-radius:31px;display:grid;place-items:center;background:linear-gradient(145deg,#162932,#0a1014);border:1px solid rgba(167,231,255,.32);box-shadow:inset 0 0 32px rgba(70,195,245,.14),0 0 38px rgba(47,181,235,.17)}.engine-core::before{content:"∞";font-size:38px;color:#c8f2ff;text-shadow:0 0 18px #5ccfff}.engine-status{position:absolute;left:20px;right:20px;bottom:38px;text-align:center}.engine-status b{display:block;font-size:12px;color:#c1eefe}.engine-status small{display:block;font-size:10px;color:#5f727b;margin-top:5px;letter-spacing:.06em}.output-card{flex:1;border:1px solid rgba(116,215,255,.18);border-radius:20px;background:linear-gradient(145deg,rgba(32,94,119,.12),rgba(7,12,15,.5));padding:22px;opacity:.55;transform:translateY(6px);transition:.45s}.output-card.ready{opacity:1;transform:none;border-color:rgba(116,215,255,.38);box-shadow:0 18px 45px rgba(0,0,0,.2)}.output-badge{display:inline-flex;padding:6px 9px;border-radius:999px;background:rgba(97,205,251,.1);color:#8ddfff;font-size:10px;letter-spacing:.1em}.output-card h3{font-size:25px;line-height:1.15;letter-spacing:-.035em;margin:20px 0 10px}.output-card>p{font-size:14px;color:#8fa0a8;margin:0;line-height:1.7}.evidence-row{display:flex;flex-wrap:wrap;gap:6px;margin:18px 0}.evidence-row span{padding:6px 9px;border:1px solid rgba(255,255,255,.08);border-radius:8px;font-size:11px;color:#82939b}.next-action{margin-top:auto;border-radius:14px;background:#dff5fd;color:#0b171c;padding:14px}.next-action small{display:block;font-size:10px;font-weight:750;letter-spacing:.08em;margin-bottom:6px}.next-action p{font-size:13px;line-height:1.55;margin:0}.lab-foot{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line)}.lab-stat{padding:17px 22px;border-right:1px solid var(--line)}.lab-stat:last-child{border-right:0}.lab-stat b{display:block;font-size:15px;color:#c7efff}.lab-stat span{font-size:11px;color:#64747d}.output-card.ready .output-badge{animation:badgePulse 1.2s ease both}@keyframes engineSpin{to{transform:rotate(360deg)}}@keyframes badgePulse{50%{box-shadow:0 0 25px rgba(84,205,255,.3)}}@media(max-width:900px){.twin-console{grid-template-columns:1fr 190px 1.15fr}.twin-sources,.twin-output{padding:22px}}@media(max-width:700px){.twin-tabs{overflow:auto}.twin-tab{flex:0 0 auto}.twin-console{grid-template-columns:1fr}.twin-sources{border-right:0;border-bottom:1px solid var(--line)}.twin-engine{min-height:270px}.twin-output{border-left:0;border-top:1px solid var(--line)}.source-stack{grid-template-columns:1fr}.lab-foot{grid-template-columns:1fr}.lab-stat{border-right:0;border-bottom:1px solid var(--line)}.lab-stat:last-child{border-bottom:0}}
    @media(prefers-reduced-motion:reduce){.flat-product-shell,.flat-product-shell::after,.record-trigger,.flat-product-wrap.recording .flat-product-shell{animation:none!important}}
    .twin-tab{font:unset;font-family:inherit;font-size:13px;font-weight:600}.twin-sources{display:flex;flex-direction:column}
    @media(prefers-reduced-motion:reduce){.engine-orbit,.output-card.ready .output-badge{animation:none!important}.source-card,.output-card{transition:none}}
    @media(max-width:900px){.distance-card{min-height:980px;display:block}.distance-copy{width:100%;max-width:720px;padding:55px}.sound-field{width:calc(100% - 70px);height:480px;left:35px;right:35px;top:auto;bottom:35px;transform:none}}
    @media(max-width:620px){.distance-card{min-height:905px}.distance-copy{padding:30px;width:100%}.distance-copy h2{font-size:43px}.sound-field{width:calc(100% - 28px);height:465px;left:14px;right:14px;bottom:14px}.field-head{left:15px;right:15px}.field-head span{font-size:9.5px}.range-badge{right:14px;top:49px}.range-badge strong{font-size:23px}.sound-map{inset:54px 2px 90px;width:calc(100% - 4px);height:calc(100% - 144px)}.clean-wave{left:12px;right:12px;gap:3px}.clean-wave i:nth-last-child(-n+5){display:none}}
    @media(prefers-reduced-motion:reduce){.clean-wave i,.field-live::before{animation:none!important}}
    @media(max-width:620px){.scene{min-height:410px;padding:25px}.scene-viz{top:54px;height:220px;width:calc(100% - 32px)}}
    @media(prefers-reduced-motion:reduce){.scene{transition:none!important}}
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    #hardware,#workflow,#twin,#assets{scroll-margin-top:88px}
    .software-showcase{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);align-items:center;gap:70px;max-width:1000px;margin:50px auto 0}.software-steps{list-style:none;padding:0;margin:0;position:relative}.software-steps::before{content:"";position:absolute;left:26px;top:30px;bottom:30px;width:1px;background:linear-gradient(transparent,#4b9bbd,transparent)}.software-step{display:flex;gap:22px;align-items:center;position:relative;padding:17px 0}.software-step-icon{flex:0 0 54px;height:54px;display:grid;place-items:center;border:1px solid #2a4552;border-radius:16px;background:#0b1419;color:#bcecff;animation:softwareStepGlow 15s linear infinite;animation-delay:calc(var(--step)*3s)}.software-step-icon svg{width:26px;height:26px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}.software-step h3{font-size:20px;line-height:1.5;margin:0 0 5px;color:#edf7fb}.software-step h3 small{font-size:12px;color:#7897a6;letter-spacing:.08em;margin-left:12px;font-weight:400}.software-step p{font-size:16px;line-height:1.6;color:#9aaaae;margin:0}.software-phone{display:flex;flex-direction:column;align-items:center;position:relative;padding:15px 0}.software-phone::before{content:"";position:absolute;inset:0;background:radial-gradient(ellipse,rgba(45,153,201,.15),transparent 65%);pointer-events:none}.software-phone .phone{height:490px;width:274px}.software-phone .phone-top{font-size:14px}.software-phone .record-time{font-size:14px}.software-phone .summary-card small{font-size:14px}.software-phone .summary-card p{font-size:14px;line-height:1.6}.software-phone-note{position:relative;margin-top:24px;display:grid;gap:7px;text-align:center;font-size:14px;color:#91b0c0}.software-phone-note span:first-child{color:#c8edfd}@keyframes softwareStepGlow{0%,18%{border-color:#9fe6ff;box-shadow:0 0 22px rgba(94,205,249,.2);color:#e1f7ff}23%,100%{border-color:#2a4552;box-shadow:none;color:#8eb5c6}}@media(max-width:760px){.software-showcase{gap:32px;grid-template-columns:1fr;margin-top:30px}.software-steps{max-width:480px;margin:auto}.software-phone{padding:0}.software-step{gap:16px;padding:14px 0}.software-step h3 small{display:block;margin:2px 0 0}.software-step p{font-size:16px}}@media(prefers-reduced-motion:reduce){.software-step-icon{animation:none}}
    .hardware-specs{grid-template-columns:repeat(5,minmax(0,1fr))}.hardware-spec{padding:22px 18px}.hardware-spec b{font-size:clamp(22px,2.1vw,28px);overflow-wrap:anywhere}@media(max-width:1000px){.hardware-specs{grid-template-columns:repeat(2,minmax(0,1fr))}.hardware-spec{border-right:1px solid var(--line);border-bottom:1px solid var(--line)}.hardware-spec:nth-child(2n){border-right:0}.hardware-spec:last-child{grid-column:1 / -1;border:0}}@media(max-width:380px){.hardware-specs{grid-template-columns:1fr}.hardware-spec{border-right:0}.hardware-spec:last-child{grid-column:auto}}
    .template-center .template-coverage{font-size:16px;line-height:1.65;color:#bcdce9;margin:12px auto 0;max-width:330px}@media(max-width:620px){.template-center .template-coverage{font-size:14px;line-height:1.6;max-width:120px}}
    .assets .assets-overview{padding:0}
    .mic .hardware-distance{padding:0;margin-top:80px}
    @media(max-width:620px){.mic .hardware-distance{margin-top:48px}}
    .hero-signature{position:absolute;z-index:4;top:178px;right:clamp(28px,4.2vw,86px);width:clamp(300px,19vw,390px);text-align:left;transform:rotate(-1.6deg);pointer-events:none}.hero-signature::before{content:"QUEZ NOTES";display:block;margin:0 0 14px 5px;font:600 9px/1 Inter,sans-serif;letter-spacing:.28em;color:rgba(137,224,255,.48)}.hero-signature p{margin:0 0 9px;white-space:nowrap;font-family:"STXingkai","Xingkai SC","Hannotate SC","FZKai-Z03","DFKai-SB","KaiTi",cursive;font-size:clamp(16px,1.05vw,20px);font-weight:400;font-style:italic;line-height:1.55;letter-spacing:.01em;-webkit-text-stroke:.12px currentColor;color:rgba(226,239,244,.82);clip-path:inset(0 100% 0 0);opacity:0;animation:signatureWrite 1.45s steps(19,end) forwards}.hero-signature p:nth-child(1){transform:rotate(-.35deg)}.hero-signature p:nth-child(2){transform:rotate(.55deg);animation-delay:1.35s}.hero-signature p:nth-child(3){transform:rotate(-.65deg);animation-delay:2.7s}.hero-signature em{font-style:normal;color:#8ce4ff;text-shadow:0 0 20px rgba(91,207,249,.26)}.hero-signature::after{content:"";display:block;width:126px;height:1px;margin:16px 0 0 auto;background:linear-gradient(90deg,transparent,#79d8fa 28%,transparent);transform:scaleX(0) rotate(-3deg);transform-origin:left;animation:signatureUnderline .8s ease 4.05s forwards}@keyframes signatureWrite{0%{clip-path:inset(0 100% 0 0);opacity:.25}12%{opacity:1}100%{clip-path:inset(0 0 0 0);opacity:1}}@keyframes signatureUnderline{to{transform:scaleX(1) rotate(-3deg)}}@media(max-width:1300px){.hero-signature{display:none}}@media(prefers-reduced-motion:reduce){.hero-signature p{clip-path:none;opacity:1;animation:none}.hero-signature::after{transform:scaleX(1) rotate(-3deg);animation:none}}
    .twin-console{grid-template-columns:1fr 310px 1.15fr}.twin-engine{isolation:isolate}.twin-avatar-wrap{position:absolute;z-index:2;inset:34px 0 66px;display:grid;place-items:end center;filter:drop-shadow(0 16px 34px rgba(0,0,0,.55))}.twin-avatar-wrap::before{content:"";position:absolute;z-index:-1;width:230px;height:300px;bottom:8px;border-radius:48% 48% 32% 32%;background:radial-gradient(ellipse,rgba(84,205,255,.23),rgba(35,119,154,.08) 46%,transparent 72%);filter:blur(12px)}.twin-avatar{display:block;width:244px;max-height:350px;object-fit:contain;object-position:center bottom;animation:twinAvatarFloat 5s ease-in-out infinite;filter:saturate(.82) contrast(1.05)}.twin-scan{position:absolute;z-index:3;left:12%;right:12%;top:15%;height:1px;background:linear-gradient(90deg,transparent,rgba(149,232,255,.9),transparent);box-shadow:0 0 14px rgba(92,210,255,.7);opacity:.7;animation:twinScan 4.8s ease-in-out infinite}.twin-engine .engine-orbit{width:238px;height:238px;opacity:.72}.twin-engine .engine-orbit.two{width:176px;height:176px}.twin-engine .engine-status{z-index:5;bottom:24px}.twin-engine .engine-status b{display:inline-block;padding:5px 9px;border-radius:999px;background:rgba(7,14,18,.74);border:1px solid rgba(109,213,252,.15);backdrop-filter:blur(8px)}@keyframes twinAvatarFloat{50%{transform:translateY(-5px);filter:saturate(1) contrast(1.07) drop-shadow(0 0 12px rgba(79,199,246,.2))}}@keyframes twinScan{0%,100%{top:16%;opacity:0}12%{opacity:.75}72%{top:77%;opacity:.7}88%{opacity:0}}@media(max-width:900px){.twin-console{grid-template-columns:1fr 240px 1.15fr}.twin-avatar{width:205px}.twin-engine .engine-orbit{width:205px;height:205px}.twin-engine .engine-orbit.two{width:150px;height:150px}}@media(max-width:700px){.twin-console{grid-template-columns:1fr}.twin-engine{min-height:340px}.twin-avatar-wrap{inset:24px 0 62px}.twin-avatar{width:220px}}@media(prefers-reduced-motion:reduce){.twin-avatar,.twin-scan{animation:none}}
    .mic-title-line{display:block;white-space:nowrap;font-size:.78em;letter-spacing:-.075em}
    @media(min-width:901px){.mic .hardware-distance .distance-copy{padding:70px 70px 70px 0}}
    .template-audience{position:absolute;z-index:6;top:24px;right:24px;display:inline-flex;align-items:center;gap:8px;padding:9px 13px;border:1px solid rgba(132,219,255,.22);border-radius:999px;background:rgba(11,20,25,.76);backdrop-filter:blur(10px);color:#c6efff;font-size:12px;letter-spacing:.08em}.template-audience::before{content:"";width:6px;height:6px;border-radius:50%;background:#75dcff;box-shadow:0 0 13px rgba(83,205,255,.8)}.template-center .template-prefix{display:block;margin:0 0 10px;font-size:12px;letter-spacing:.28em;color:#79d8fb}@media(max-width:620px){.template-audience{top:14px;right:14px;padding:7px 9px;font-size:10px}.template-center .template-prefix{font-size:10px;margin-bottom:7px}}

/* ==========================================================================
   本站集成层（以下为 binarysee.com 追加，用于把 Quez 产品页接入全站体系）
   原则：只新增类与前缀选择器，不覆盖上方任何一条设计稿规则；
        确需覆盖时使用更高的选择器权重或后缀媒体查询，保证设计稿原样可回滚。
   ========================================================================== */

/* --- 1. 导航：品牌位补母公司归属 ------------------------------------------ */
.brand-parent {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .02em;
  color: #8fb6c6;
  margin-left: 10px;
  white-space: nowrap;
}

.brand-parent::before {
  content: "·";
  margin-right: 7px;
  color: #4d616b;
}

/* 眉题里的中文与品牌名保持原有大小写，不跟随设计稿的 uppercase */
.eyebrow-brand {
  text-transform: none;
  letter-spacing: .1em;
}

/* --- 2. 无 JS / 脚本失败兜底 ---------------------------------------------- */
/* 入场动画的初始 opacity:0 只在 JS 就绪后生效，否则整页内容会一直隐藏。 */
html:not(.has-js) .reveal {
  opacity: 1;
  transform: none;
}

/* --- 3. 结尾区：产品名 + 品类 --------------------------------------------- */
.final h2 .final-cat {
  display: block;
  font-size: clamp(18px, 2.6vw, 32px);
  font-weight: 560;
  line-height: 1.4;
  letter-spacing: .02em;
  margin-top: 22px;
  color: #7d8f98;
}

/* --- 4. 常见问题：AI 引擎可直接引用的问答对 -------------------------------- */
.faq {
  padding: 130px 0 40px;
}

.faq-list {
  max-width: 880px;
  margin-top: 48px;
  border-top: 1px solid var(--line);
}

.faq-item {
  border-bottom: 1px solid var(--line);
}

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  padding: 23px 4px;
  cursor: pointer;
  list-style: none;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary h3 {
  margin: 0;
  font-size: 17px;
  font-weight: 620;
  letter-spacing: -.01em;
  color: #e6f2f7;
  transition: color .2s ease;
}

.faq-item summary::after {
  content: "+";
  flex: none;
  font-size: 22px;
  line-height: 1;
  color: var(--ice);
  transition: transform .25s ease;
}

.faq-item[open] summary::after {
  transform: rotate(45deg);
}

.faq-item summary:hover h3 {
  color: #fff;
}

.faq-body {
  padding: 0 40px 27px 4px;
  max-width: 780px;
}

.faq-body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--muted);
}

/* --- 5. 页脚：实体信息 + 站内链路 ----------------------------------------- */
.footer {
  padding: 66px 0 34px;
}

.footer a {
  color: inherit;
  text-decoration: none;
}

.qz-foot-grid {
  display: grid;
  grid-template-columns: 1.7fr 1fr 1fr 1fr;
  gap: 46px;
  padding-bottom: 42px;
  border-bottom: 1px solid var(--line);
}

.qz-foot-logo {
  display: inline-block;
  font-size: 20px;
  font-weight: 760;
  letter-spacing: -.04em;
  color: #e9f6fb;
}

.qz-foot-logo sup {
  position: relative;
  top: -1.1em;
  margin-left: 3px;
  font-size: 7px;
  color: var(--blue);
}

.qz-foot-brand p {
  margin: 15px 0 13px;
  max-width: 350px;
  font-size: 12.5px;
  line-height: 1.9;
  color: #6d7c84;
}

.qz-foot-mail {
  font-size: 12.5px;
  color: var(--ice);
}

.qz-foot-title {
  margin-bottom: 15px;
  font-size: 11px;
  letter-spacing: .18em;
  color: #7f9099;
}

.qz-foot-col a {
  display: block;
  padding: 5px 0;
  font-size: 13px;
  color: #93a3ab;
  transition: color .2s ease;
}

.qz-foot-col a:hover {
  color: #fff;
}

.qz-foot-col a[aria-current="page"] {
  color: #bddcea;
}

.qz-foot-legal {
  display: flex;
  flex-wrap: wrap;
  gap: 7px 28px;
  padding: 24px 0 0;
  font-size: 11.5px;
  color: #5d6a71;
}

.qz-foot-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px;
  padding-top: 14px;
  font-size: 11px;
  color: #4f5b61;
}

/* --- 6. 模板区覆盖声明的长短句切换 ---------------------------------------- */
.cov-short {
  display: none;
}

/* --- 7. 窄屏与中屏收口 ---------------------------------------------------- */
@media(max-width:1000px) {
  .nav-links {
    gap: 18px;
  }

  .brand-parent {
    font-size: 10px;
    margin-left: 8px;
  }
}

@media(max-width:900px) {
  .qz-foot-grid {
    grid-template-columns: 1fr 1fr;
    gap: 34px;
  }
}

@media(max-width:620px) {
  .brand-parent {
    display: none;
  }

  /* 模板环中心区：窄屏改用精简句（完整表述在 ≥621px 与 FAQ 中均为可见正文），
     避免长句在 120px 容器里长成高块、被环绕的场景标签压住。 */
  .template-center .cov-full {
    display: none;
  }

  .template-center .cov-short {
    display: inline;
  }

  .faq {
    padding: 84px 0 24px;
  }

  .faq-item summary {
    padding: 19px 2px;
  }

  .faq-item summary h3 {
    font-size: 15.5px;
  }

  .faq-body {
    padding: 0 20px 22px 2px;
  }

  .faq-body p {
    font-size: 14px;
    line-height: 1.85;
  }

  .footer {
    padding: 46px 0 26px;
  }

  .qz-foot-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .qz-foot-bottom {
    flex-direction: column;
  }
}

/* --- 7. 声波圆环随视口收缩 ------------------------------------------------- */
/* 设计稿在窄屏用固定像素（.w3 440px），390px 视口下容器仅 362px，圆环撑出约 35px
   横向滚动条，并把 position:fixed 的导航一并拉宽。改为按视口计算，保持同心圆与
   ripple 动画不变，只在窄屏整体变小。 */
@media(max-width:620px) {
  .sound-scene .w1 {
    width: calc((100vw - 56px) * .62);
    height: calc((100vw - 56px) * .62);
  }

  .sound-scene .w2 {
    width: calc((100vw - 56px) * .8);
    height: calc((100vw - 56px) * .8);
  }

  .sound-scene .w3 {
    width: calc(100vw - 56px);
    height: calc(100vw - 56px);
  }
}