*{margin:0;padding:0;box-sizing:border-box}
:root{
  --ink:#141a2b;
  --ink-2:#3a4460;
  --ink-3:#6b7590;
  --line:#e3e8f2;
  --paper:#ffffff;
  --bg:#f6f8fd;
  --brand:#3b5bff;
  --brand-2:#7a5cff;
  --mint:#00c2a8;
  --coral:#ff6a8a;
  --amber:#ffb020;
  --r:18px;
  --shadow:0 10px 30px rgba(41,60,120,.08);
  --shadow-h:0 18px 44px rgba(41,60,120,.16);
  --max:1180px;
  --pad:24px;
}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  color:var(--ink);
  background:
    radial-gradient(900px 520px at 88% -6%,rgba(122,92,255,.14),transparent 62%),
    radial-gradient(760px 480px at 6% 2%,rgba(0,194,168,.12),transparent 60%),
    linear-gradient(180deg,#f7f9ff 0%,#f3f5fd 42%,#f7f8fd 100%);
  line-height:1.7;
  font-size:15px;
  -webkit-font-smoothing:antialiased;
}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 var(--pad)}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;height:auto}
h1,h2,h3,h4{line-height:1.35;letter-spacing:.2px}
section{position:relative}

/* ============ header ============ */
.site-head{position:sticky;top:0;z-index:60;backdrop-filter:blur(14px);background:rgba(255,255,255,.82);border-bottom:1px solid rgba(227,232,242,.9)}
.head-inner{display:flex;align-items:center;justify-content:space-between;gap:14px;min-height:70px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand .ai-page-logo{width:auto;max-width:132px;max-height:38px;object-fit:contain}
.brand-name{font-size:17px;font-weight:800;letter-spacing:.5px}
.brand-sub{display:block;font-size:11px;color:var(--ink-3);font-weight:500;letter-spacing:2px}
.nav-links{display:flex;align-items:center;gap:0;list-style:none;flex-wrap:wrap;justify-content:flex-end}
.nav-links li a{display:inline-block;padding:8px 9px;font-size:13.5px;color:var(--ink-2);border-radius:9px;transition:color .25s,background .25s}
.nav-links li a:hover{color:var(--brand);background:rgba(59,91,255,.08)}
.head-cta{display:flex;align-items:center;gap:8px;flex-shrink:0}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;padding:11px 22px;border-radius:12px;font-size:14px;font-weight:700;border:1px solid transparent;cursor:pointer;transition:transform .22s,box-shadow .28s,background .28s,color .28s;white-space:nowrap}
.btn-primary{background:linear-gradient(120deg,#3b5bff,#7a5cff 58%,#00c2a8 130%);color:#fff;box-shadow:0 10px 24px rgba(70,80,220,.32)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(70,80,220,.42)}
.btn-ghost{background:rgba(255,255,255,.7);border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}
.btn-sm{padding:8px 15px;font-size:13px;border-radius:10px}
.menu-toggle{display:none;width:42px;height:42px;border-radius:11px;border:1px solid var(--line);background:#fff;cursor:pointer;align-items:center;justify-content:center;flex-direction:column;gap:4px}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:.28s}
.menu-toggle.open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.menu-toggle.open span:nth-child(2){opacity:0}
.menu-toggle.open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ============ hero ============ */
.hero{padding:64px 0 56px;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background:
  radial-gradient(520px 300px at 78% 12%,rgba(122,92,255,.18),transparent 65%),
  radial-gradient(460px 280px at 12% 78%,rgba(0,194,168,.16),transparent 66%);
  pointer-events:none;z-index:0}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.12fr .88fr;gap:44px;align-items:start}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:rgba(59,91,255,.09);color:#2f47c9;font-size:12.5px;font-weight:700;letter-spacing:.6px;border:1px solid rgba(59,91,255,.16)}
.eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--mint);display:inline-block;box-shadow:0 0 0 4px rgba(0,194,168,.16)}
.hero h1{margin:18px 0 16px;font-size:clamp(28px,3.6vw,44px);font-weight:800;letter-spacing:-.5px}
.hero h1 em{font-style:normal;background:linear-gradient(100deg,#3b5bff,#7a5cff 50%,#00c2a8);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{font-size:15.5px;color:var(--ink-2);max-width:560px}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.hero-tags span{font-size:12.5px;padding:5px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);color:var(--ink-2);box-shadow:0 4px 12px rgba(41,60,120,.05)}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-note{margin-top:16px;font-size:12.5px;color:var(--ink-3)}
.hero-panel{background:linear-gradient(160deg,#fff,#f2f5ff 55%,#eef7f5);border:1px solid var(--line);border-radius:22px;padding:20px;box-shadow:var(--shadow);position:relative;overflow:hidden}
.hero-panel::after{content:"";position:absolute;width:190px;height:190px;right:-70px;top:-70px;border-radius:50%;background:radial-gradient(circle,rgba(122,92,255,.22),transparent 68%)}
.panel-title{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-3);font-weight:700;letter-spacing:.5px;position:relative;z-index:1}
.panel-title b{color:var(--ink);font-size:14px}
.metric-list{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:14px;position:relative;z-index:1}
.metric{background:rgba(255,255,255,.86);border:1px solid var(--line);border-radius:14px;padding:12px 13px;transition:transform .28s,box-shadow .28s}
.metric:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.metric b{display:block;font-size:20px;font-weight:800;color:#233;letter-spacing:-.4px}
.metric span{font-size:11.5px;color:var(--ink-3)}
.model-strip{display:flex;flex-wrap:wrap;gap:6px;margin-top:14px;position:relative;z-index:1}
.model-strip span{font-size:11px;padding:4px 9px;border-radius:7px;background:rgba(59,91,255,.08);color:#2f47c9;font-weight:600}

/* ============ generic section ============ */
.section{padding:62px 0}
.section-head{max-width:760px;margin:0 auto 34px;text-align:center}
.section-head.left{margin-left:0;text-align:left}
.section-kicker{font-size:12.5px;font-weight:800;letter-spacing:2px;color:var(--brand);text-transform:uppercase}
.section-head h2{margin-top:10px;font-size:clamp(22px,2.5vw,32px);font-weight:800;letter-spacing:-.3px}
.section-head p{margin-top:12px;color:var(--ink-2);font-size:14.5px}
.grid{display:grid;gap:18px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:22px;box-shadow:var(--shadow);transition:transform .3s,box-shadow .3s,border-color .3s}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-h);border-color:rgba(59,91,255,.28)}
.card h3{font-size:16.5px;margin-bottom:8px}
.card p{color:var(--ink-2);font-size:13.8px}
.icon-chip{width:42px;height:42px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-weight:800;color:#fff;font-size:15px;margin-bottom:14px;background:linear-gradient(135deg,#3b5bff,#7a5cff);box-shadow:0 8px 18px rgba(70,80,220,.28)}
.chip-mint{background:linear-gradient(135deg,#00c2a8,#3b5bff)}
.chip-coral{background:linear-gradient(135deg,#ff6a8a,#7a5cff)}
.chip-amber{background:linear-gradient(135deg,#ffb020,#ff6a8a)}

/* reveal */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .7s cubic-bezier(.2,.7,.3,1),transform .7s cubic-bezier(.2,.7,.3,1)}
.reveal.in{opacity:1;transform:none}

/* about */
.about-wrap{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:start}
.about-text p{color:var(--ink-2);font-size:14.5px;margin-bottom:12px}
.about-list{list-style:none;display:grid;gap:10px;margin-top:6px}
.about-list li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--ink-2)}
.about-list li b{color:var(--ink)}
.tick{flex-shrink:0;width:20px;height:20px;border-radius:50%;background:rgba(0,194,168,.14);color:#00917d;font-size:12px;display:flex;align-items:center;justify-content:center;font-weight:800;margin-top:2px}
.about-side{display:grid;gap:14px}
.stat-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.stat{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px;box-shadow:var(--shadow)}
.stat b{display:block;font-size:24px;font-weight:800;background:linear-gradient(100deg,#3b5bff,#00c2a8);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat span{font-size:12.5px;color:var(--ink-3)}
.quote-mini{background:linear-gradient(140deg,#eef2ff,#eafaf6);border:1px solid var(--line);border-radius:16px;padding:18px;font-size:13.5px;color:var(--ink-2)}

/* service cards */
.svc{counter-reset:svc}
.svc .card{position:relative;overflow:hidden}
.svc .card::before{content:"";position:absolute;inset:0 auto auto 0;width:100%;height:3px;background:linear-gradient(90deg,#3b5bff,#7a5cff,#00c2a8);opacity:0;transition:opacity .3s}
.svc .card:hover::before{opacity:1}

/* flow */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.step{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px;box-shadow:var(--shadow);position:relative;transition:transform .3s,box-shadow .3s}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-h)}
.step .num{font-size:12px;font-weight:800;color:#fff;background:linear-gradient(135deg,#3b5bff,#00c2a8);width:30px;height:30px;border-radius:9px;display:flex;align-items:center;justify-content:center;margin-bottom:12px}
.step h3{font-size:15.5px;margin-bottom:6px}
.step p{font-size:13.4px;color:var(--ink-2)}

/* scenario tags */
.tag-cloud{display:flex;flex-wrap:wrap;gap:9px}
.tag-cloud span{font-size:13px;padding:7px 14px;border-radius:999px;background:#fff;border:1px solid var(--line);color:var(--ink-2);transition:transform .25s,color .25s,border-color .25s,box-shadow .25s;cursor:default}
.tag-cloud span:hover{transform:translateY(-2px);color:var(--brand);border-color:rgba(59,91,255,.4);box-shadow:0 8px 18px rgba(59,91,255,.14)}

/* compare table */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:16px;background:#fff;box-shadow:var(--shadow)}
table{width:100%;border-collapse:collapse;min-width:680px;font-size:14px}
thead th{background:linear-gradient(120deg,#232c4a,#3b3f78);color:#fff;font-weight:700;padding:14px 16px;text-align:left;font-size:13.5px;white-space:nowrap}
tbody td{padding:13px 16px;border-top:1px solid var(--line);color:var(--ink-2);vertical-align:top}
tbody tr:nth-child(even){background:#fafbff}
tbody tr:hover{background:#f2f5ff}
td.brand-cell{color:var(--ink);font-weight:700}
.yes{color:#00917d;font-weight:700}
.no{color:#98a0b5}
.score-banner{display:flex;flex-wrap:wrap;align-items:center;gap:18px;justify-content:space-between;background:linear-gradient(120deg,#232c4a,#3f3f8f 55%,#0f8f86);border-radius:18px;padding:22px 26px;color:#fff;margin-bottom:20px;box-shadow:0 18px 40px rgba(40,50,120,.25)}
.score-banner .sb-left b{font-size:26px;display:block;letter-spacing:-.5px}
.score-banner .sb-left span{font-size:13.5px;opacity:.86}
.score-banner .sb-right{display:flex;align-items:center;gap:16px}
.stars{letter-spacing:3px;font-size:19px;color:#ffd45e}
.score-num{font-size:32px;font-weight:800;line-height:1}
.score-num small{font-size:14px;font-weight:600;opacity:.8;margin-left:2px}

/* reviews */
.review{display:grid;gap:14px}
.review .card{display:flex;flex-direction:column;gap:12px}
.rv-top{display:flex;align-items:center;gap:12px}
.avatar{width:42px;height:42px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:15px;flex-shrink:0;background:linear-gradient(135deg,#3b5bff,#7a5cff)}
.avatar.m{background:linear-gradient(135deg,#00c2a8,#3b5bff)}
.avatar.c{background:linear-gradient(135deg,#ff6a8a,#7a5cff)}
.avatar.a{background:linear-gradient(135deg,#ffb020,#ff6a8a)}
.rv-name{font-weight:700;font-size:14.5px}
.rv-role{font-size:12px;color:var(--ink-3)}
.rv-text{font-size:13.8px;color:var(--ink-2)}
.rv-stars{color:#ffb020;font-size:13px;letter-spacing:2px}

/* case */
.case-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:18px;align-items:start}
.case-media{border:1px solid var(--line);border-radius:16px;overflow:hidden;background:#fff;box-shadow:var(--shadow);transition:transform .3s,box-shadow .3s}
.case-media:hover{transform:translateY(-4px);box-shadow:var(--shadow-h)}
.case-media .cap{padding:14px 16px;font-size:13.5px;color:var(--ink-2);border-top:1px solid var(--line)}
.case-media .cap b{display:block;color:var(--ink);font-size:14.5px;margin-bottom:2px}
.case-media img{width:100%;aspect-ratio:16/9;object-fit:cover}
.case-media.square img{aspect-ratio:1/1;object-fit:contain;background:#f6f8fd;padding:10px}
.case-side{display:grid;gap:14px}

/* pricing */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.price-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:12px;transition:transform .3s,box-shadow .3s}
.price-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-h)}
.price-card.featured{border:1.5px solid rgba(59,91,255,.42);background:linear-gradient(170deg,#f5f7ff,#eefbf8)}
.price-tag{font-size:12px;font-weight:800;letter-spacing:1px;color:var(--brand)}
.price-card h3{font-size:17px}
.price-amount{font-size:28px;font-weight:800;letter-spacing:-.6px}
.price-amount small{font-size:13px;font-weight:600;color:var(--ink-3);margin-left:4px}
.price-card ul{list-style:none;display:grid;gap:8px;font-size:13.6px;color:var(--ink-2)}
.price-card ul li::before{content:"·";color:var(--brand);font-weight:900;margin-right:7px}

/* article list */
.article-list{display:grid;gap:12px}
.article-item{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 20px;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);transition:transform .28s,box-shadow .28s,border-color .28s}
.article-item:hover{transform:translateX(4px);border-color:rgba(59,91,255,.32);box-shadow:var(--shadow-h)}
.article-item .t{font-size:14.5px;font-weight:700;color:var(--ink)}
.article-item .d{font-size:12.5px;color:var(--ink-3);margin-top:2px}
.article-item .arrow{color:var(--brand);font-weight:800;flex-shrink:0}

/* form */
.form-wrap{display:grid;grid-template-columns:.9fr 1.1fr;gap:24px;align-items:start}
.form-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:26px;box-shadow:var(--shadow)}
.field{margin-bottom:15px}
.field label{display:block;font-size:13px;font-weight:700;color:var(--ink-2);margin-bottom:6px}
.field input,.field select,.field textarea{width:100%;padding:11px 13px;border:1px solid var(--line);border-radius:11px;font-size:14px;font-family:inherit;color:var(--ink);background:#fbfcff;transition:border-color .25s,box-shadow .25s,background .25s}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--brand);background:#fff;box-shadow:0 0 0 4px rgba(59,91,255,.12)}
.field textarea{min-height:104px;resize:vertical}
.form-tip{font-size:12.5px;color:var(--ink-3);margin-top:10px}
.contact-side{display:grid;gap:14px}
.contact-item{display:flex;gap:12px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:14px;padding:15px 17px;box-shadow:var(--shadow);transition:transform .28s,box-shadow .28s}
.contact-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-h)}
.contact-item .ci-label{font-size:12px;color:var(--ink-3)}
.contact-item .ci-val{font-size:14.5px;font-weight:700;color:var(--ink);word-break:break-all}
.qr-box{background:#fff;border:1px solid var(--line);border-radius:16px;padding:16px;text-align:center;box-shadow:var(--shadow)}
.qr-box img{width:150px;margin:0 auto;border-radius:10px}
.qr-box p{font-size:12.5px;color:var(--ink-3);margin-top:8px}

/* faq */
.faq-list{display:grid;gap:10px;max-width:920px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);overflow:hidden;transition:border-color .28s,box-shadow .28s}
.faq-item.open{border-color:rgba(59,91,255,.36);box-shadow:var(--shadow-h)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:14px;padding:16px 20px;background:none;border:none;font-family:inherit;font-size:14.5px;font-weight:700;color:var(--ink);text-align:left;cursor:pointer}
.faq-q .plus{width:22px;height:22px;flex-shrink:0;border-radius:50%;background:rgba(59,91,255,.1);color:var(--brand);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:15px;transition:transform .3s,background .3s,color .3s}
.faq-item.open .plus{transform:rotate(45deg);background:var(--brand);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .38s ease}
.faq-a p{padding:0 20px 17px;font-size:13.8px;color:var(--ink-2)}

/* footer */
.site-foot{background:#131a2d;color:#c8d0e4;padding:46px 0 22px;margin-top:44px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:28px;align-items:start}
.foot-brand .ai-page-logo{max-width:130px;margin-bottom:12px;filter:brightness(0) invert(1)}
.foot-brand p{font-size:13px;color:#9aa5bf;line-height:1.8}
.foot-col h4{font-size:14px;color:#fff;margin-bottom:12px;font-weight:700}
.foot-col ul{list-style:none;display:grid;gap:8px}
.foot-col ul li a{font-size:13px;color:#9aa5bf;transition:color .25s,transform .25s;display:inline-block}
.foot-col ul li a:hover{color:#6fe3d0;transform:translateX(3px)}
.foot-links{display:flex;flex-wrap:wrap;gap:8px 14px}
.foot-links a{font-size:12.5px;color:#9aa5bf;transition:color .25s}
.foot-links a:hover{color:#6fe3d0}
.foot-contact-line{font-size:13px;color:#9aa5bf;margin-bottom:6px}
.foot-contact-line b{color:#e6ecff}
.foot-bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:30px;padding-top:16px;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:12.5px;color:#8794b0}
.foot-bottom a{color:#8794b0}
.foot-bottom a:hover{color:#6fe3d0}

/* float */
.float-cs{position:fixed;right:18px;bottom:22px;z-index:80;display:flex;flex-direction:column;gap:10px;align-items:flex-end}
.float-btn{width:50px;height:50px;border-radius:50%;background:linear-gradient(135deg,#3b5bff,#7a5cff);color:#fff;display:flex;align-items:center;justify-content:center;box-shadow:0 12px 26px rgba(60,70,200,.36);cursor:pointer;border:none;font-size:19px;transition:transform .28s,box-shadow .28s}
.float-btn:hover{transform:translateY(-3px) scale(1.05);box-shadow:0 18px 34px rgba(60,70,200,.46)}
.float-btn.top-btn{background:#fff;color:var(--brand);border:1px solid var(--line);font-size:16px;opacity:0;pointer-events:none;transition:opacity .3s,transform .28s}
.float-btn.top-btn.show{opacity:1;pointer-events:auto}
.cs-pop{position:absolute;right:62px;bottom:0;width:210px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px;box-shadow:0 18px 40px rgba(30,40,90,.2);display:none}
.cs-pop.on{display:block;animation:popIn .28s ease}
.cs-pop img{width:100%;border-radius:9px}
.cs-pop p{font-size:12px;color:var(--ink-3);text-align:center;margin-top:6px}
@keyframes popIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}

/* misc */
.notice-bar{background:linear-gradient(90deg,rgba(59,91,255,.1),rgba(0,194,168,.12));border:1px solid rgba(59,91,255,.16);border-radius:14px;padding:12px 18px;font-size:13px;color:var(--ink-2);display:flex;flex-wrap:wrap;gap:8px 18px;align-items:center;justify-content:center;margin-bottom:26px}
.notice-bar b{color:var(--brand)}
.split-2{display:grid;grid-template-columns:1fr 1fr;gap:18px;align-items:start}

/* responsive */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:30px}
  .about-wrap,.form-wrap,.case-grid,.split-2{grid-template-columns:1fr}
  .flow{grid-template-columns:repeat(2,1fr)}
  .g4{grid-template-columns:repeat(2,1fr)}
  .price-grid{grid-template-columns:1fr 1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
  .nav-links{display:none;position:absolute;top:70px;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;padding:10px 16px 18px;border-bottom:1px solid var(--line);box-shadow:0 18px 30px rgba(30,40,90,.1);gap:0}
  .nav-links.open{display:flex}
  .nav-links li a{display:block;padding:11px 8px;border-bottom:1px solid #f2f4fa}
  .menu-toggle{display:flex}
  .head-cta .btn-ghost{display:none}
}
@media (max-width:760px){
  .section{padding:44px 0}
  .g3,.g4,.price-grid,.stat-row,.metric-list{grid-template-columns:1fr 1fr}
  .flow{grid-template-columns:1fr}
  .hero{padding:40px 0 36px}
  .score-banner{flex-direction:column;align-items:flex-start}
  .foot-grid{grid-template-columns:1fr}
  .article-item{flex-direction:column;align-items:flex-start;gap:6px}
  .brand-sub{display:none}
}
@media (max-width:480px){
  .g2,.g3,.g4,.price-grid,.stat-row,.metric-list{grid-template-columns:1fr}
  .hero-actions .btn{width:100%}
  .head-cta .btn{font-size:12.5px;padding:8px 12px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}