:root {
    --ink: #071126;
    --muted: #63708a;
    --line: #dbe4f1;
    --surface: #f7f9fd;
    --blue: #4257f5;
    --violet: #7457f6;
    --cyan: #14c8d4;
    --green: #17b978;
    --deep: #07152f;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    color: var(--ink);
    background: #fff;
    font-family: Inter, "SF Pro Display", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
    -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }

.site-header {
    position: sticky;
    top: 0;
    z-index: 40;
    height: 76px;
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    padding: 0 max(32px, calc((100vw - 1380px) / 2));
    border-bottom: 1px solid rgba(219, 228, 241, .82);
    background: rgba(255, 255, 255, .88);
    backdrop-filter: blur(18px);
}
.brand { display: inline-flex; align-items: center; gap: 8px; font-size: 24px; font-weight: 750; letter-spacing: -.035em; }
.brand strong { color: var(--blue); }
.brand-logo { width: 48px; height: 38px; object-fit: contain; }
.site-nav { display: flex; align-items: center; gap: 46px; color: #2b3854; font-size: 16px; font-weight: 680; }
.site-nav a, .login-link { transition: color .2s ease; }
.site-nav a:hover, .login-link:hover { color: var(--blue); }
.header-actions { justify-self: end; display: flex; align-items: center; gap: 24px; font-size: 14px; font-weight: 650; }
.menu-button { display: none; }
.button {
    display: inline-flex; justify-content: center; align-items: center; gap: 10px; min-height: 52px; padding: 0 26px;
    border: 1px solid transparent; border-radius: 14px; color: #fff; font-size: 15px; font-weight: 700;
    background: linear-gradient(120deg, #304ee9, #6950ef); box-shadow: 0 12px 30px rgba(68, 77, 229, .25);
    transition: transform .2s ease, box-shadow .2s ease;
}
.button:hover { transform: translateY(-2px); box-shadow: 0 16px 34px rgba(68, 77, 229, .32); }
.button-small { min-height: 42px; padding: 0 20px; border-radius: 11px; }
.button-ghost { color: #283456; border-color: #cbd6e8; background: rgba(255,255,255,.72); box-shadow: none; }
.button-ghost:hover { border-color: #8391f8; box-shadow: 0 12px 24px rgba(38,50,90,.08); }

.hero {
    position: relative; overflow: hidden; min-height: 720px; display: grid; grid-template-columns: .78fr 1.22fr;
    align-items: center; gap: 56px; padding: 94px max(42px, calc((100vw - 1420px) / 2)) 94px;
    background: linear-gradient(145deg, #fff 0%, #f8fbff 44%, #f4f3ff 100%);
}
.hero::before { content: ""; position: absolute; inset: 0; opacity: .18; background-image: linear-gradient(#cfd8e8 1px, transparent 1px), linear-gradient(90deg, #cfd8e8 1px, transparent 1px); background-size: 72px 72px; mask-image: linear-gradient(to right, transparent 8%, black 62%, transparent); }
.hero-glow { position: absolute; border-radius: 999px; filter: blur(3px); pointer-events: none; }
.hero-glow-one { right: 16%; top: 12%; width: 370px; height: 370px; background: radial-gradient(circle, rgba(28,203,213,.19), transparent 68%); }
.hero-glow-two { right: -4%; bottom: -18%; width: 500px; height: 500px; background: radial-gradient(circle, rgba(116,87,246,.18), transparent 68%); }
.hero-copy, .hero-product { position: relative; z-index: 1; }
.eyebrow { display: flex; align-items: center; gap: 8px; margin: 0 0 27px; color: #78849a; font-size: 11px; font-weight: 760; letter-spacing: .2em; }
.eyebrow span { width: 18px; height: 1px; background: linear-gradient(90deg, var(--cyan), var(--blue)); }
h1 { margin: 0; font-size: clamp(52px, 5.2vw, 80px); line-height: 1.32; letter-spacing: .055em; font-weight: 820; }
h1 em { color: transparent; font-style: normal; background: linear-gradient(105deg, #324ef0 4%, #7959ef 57%, #12aebd); background-clip: text; -webkit-background-clip: text; }
.hero-lead { max-width: 610px; margin: 31px 0 0; }
.hero-position { max-width: 590px; margin: 25px 0 0; color: #44516a; font-size: 18px; font-weight: 680; line-height: 1.7; letter-spacing: .015em; }
.hero-lead strong { display: block; color: #283651; font-size: 20px; line-height: 1.55; letter-spacing: -.01em; }
.hero-lead span { display: block; margin-top: 7px; color: #6b7890; font-size: 16px; line-height: 1.7; }
.hero-lead span strong { display: inline; color: #4655bd; font-size: inherit; line-height: inherit; letter-spacing: inherit; }
.hero-actions { display: flex; gap: 14px; margin-top: 34px; }
.trust-list { display: flex; flex-wrap: wrap; gap: 22px; margin: 32px 0 0; padding: 0; list-style: none; color: #56637d; font-size: 13px; }
.trust-list span { display: inline-grid; place-items: center; width: 18px; height: 18px; margin-right: 5px; color: var(--green); border: 1px solid #a9dfc9; border-radius: 50%; font-size: 11px; }

.hero-product { width: calc(100% + 34px); padding: 18px; transform: translate(18px, -6px); border: 1px solid rgba(181,195,220,.72); border-radius: 24px; background: rgba(255,255,255,.82); box-shadow: 0 42px 100px rgba(25,42,94,.18), 0 10px 28px rgba(66,87,245,.07), inset 0 1px 0 #fff; backdrop-filter: blur(20px); }
.product-topbar { display: flex; justify-content: space-between; align-items: center; padding: 0 5px 16px; color: #24304b; font-size: 13px; font-weight: 740; }
.live-dot { display: inline-block; width: 8px; height: 8px; margin-right: 8px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 0 5px rgba(20,200,212,.12); animation: live 2s infinite; }
.product-status { padding: 6px 10px; color: #237e83; border-radius: 8px; background: #e8faf9; font-size: 11px; }
.product-grid { display: grid; grid-template-columns: 1fr 54px 1.05fr; align-items: center; }
.task-panel, .result-panel { min-height: 390px; padding: 20px; border: 1px solid #e1e7f1; border-radius: 17px; background: #fff; box-shadow: 0 14px 32px rgba(34,49,88,.075); }
.task-panel { transform: translateY(9px); }
.result-panel { transform: translateY(-5px); }
.panel-label { margin: 0 0 15px; color: #7d899f; font-size: 12px; font-weight: 800; letter-spacing: .12em; }
.task-card { display: grid; grid-template-columns: 34px 1fr auto; align-items: center; gap: 10px; margin-top: 12px; padding: 13px 11px; border: 1px solid #dfe6f2; border-radius: 12px; }
.task-card.active { border-color: #cdd6fb; background: #fafbff; }
.task-card.muted { opacity: .55; }
.task-index { display: grid; place-items: center; width: 32px; height: 32px; border-radius: 9px; color: var(--blue); background: #eef1ff; font-size: 11px; font-weight: 800; }
.task-card strong, .evidence-event strong { display: block; color: #26314b; font-size: 14px; }
.task-card small, .evidence-event small { display: block; margin-top: 5px; color: #7f8ba1; font-size: 11px; }
.task-state { padding: 5px 7px; border-radius: 6px; font-size: 10px; font-weight: 750; white-space: nowrap; }
.task-state.done { color: #16855c; background: #e9f9f2; }
.task-state.now { color: #5445d7; background: #eeecff; }
.task-state.queued { color: #177684; background: #e6f8fa; }
.signal-line { position: relative; height: 2px; background: linear-gradient(90deg, #717df5, var(--cyan)); }
.signal-line::before, .signal-line::after { content: ""; position: absolute; top: 50%; width: 7px; height: 7px; border-radius: 50%; background: var(--blue); transform: translateY(-50%); }
.signal-line::before { left: -1px; } .signal-line::after { right: -1px; background: var(--cyan); }
.signal-line span { position: absolute; top: -3px; width: 8px; height: 8px; border-radius: 50%; background: #fff; box-shadow: 0 0 10px 4px rgba(43,191,211,.55); animation: flow 2.2s linear infinite; }
.result-head { display: flex; justify-content: space-between; align-items: end; }
.result-head .panel-label { margin-bottom: 7px; }
.result-head strong { font-size: 21px; }
.result-head > span { color: var(--blue); font-size: 16px; font-weight: 800; }
.progress-track { height: 7px; margin: 20px 0; overflow: hidden; border-radius: 999px; background: #edf0f7; }
.progress-track span { display: block; width: 75%; height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--blue), var(--violet), var(--cyan)); }
.phase-row { display: flex; justify-content: space-between; align-items: center; color: #586680; font-size: 12px; font-weight: 700; }
.phase-row strong { color: #4154db; font-size: 14px; }
.progress-track.secondary { height: 5px; margin: 9px 0 17px; }
.progress-track.secondary span { width: 17%; background: linear-gradient(90deg, var(--cyan), var(--green)); }
.metric-row { display: grid; grid-template-columns: repeat(3,1fr); padding-bottom: 20px; border-bottom: 1px solid #edf0f5; }
.metric-row div { padding-left: 12px; border-left: 1px solid #e4e9f2; }
.metric-row small { display: block; color: #7d899d; font-size: 11px; }
.metric-row strong { display: block; margin-top: 5px; font-size: 23px; }
.metric-row .safe { color: var(--green); }
.evidence-event { display: grid; grid-template-columns: 10px 1fr auto; align-items: center; gap: 10px; margin-top: 20px; padding: 13px; border: 1px solid #cceee1; border-radius: 12px; background: #f3fcf8; }
.event-pulse { width: 8px; height: 8px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 4px rgba(23,185,120,.12); }
.event-check { display: grid; place-items: center; width: 25px; height: 25px; color: #fff; border-radius: 50%; background: var(--green); font-size: 12px; }
.product-footer { display: flex; align-items: center; justify-content: center; gap: 12px; padding-top: 17px; color: #53617a; font-size: 12px; font-weight: 720; letter-spacing: .025em; }
.product-footer i { width: 28px; height: 1px; background: linear-gradient(90deg, #9ca8bf, var(--blue)); }

.statement { max-width: 1180px; margin: 0 auto; padding: 128px 30px 78px; text-align: center; }
.section-kicker { margin: 0 0 19px; color: var(--blue); font-size: 14px; font-weight: 820; letter-spacing: .16em; }
.statement h2 { margin: 0; font-size: clamp(32px, 3.5vw, 48px); line-height: 1.42; letter-spacing: .045em; white-space: nowrap; }
.evidence-copy h2, .final-cta h2 { margin: 0; font-size: clamp(32px, 4vw, 52px); line-height: 1.42; letter-spacing: .055em; }
.statement > p:last-child { color: #69758c; font-size: 17px; line-height: 1.8; }

.capabilities { max-width: 1320px; margin: 0 auto; display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; padding: 0 30px 132px; }
.capability-card { position: relative; min-height: 420px; overflow: hidden; padding: 34px; border: 1px solid rgba(202,213,231,.82); border-radius: 24px; background: #fff; box-shadow: 0 18px 50px rgba(22,39,79,.055); transition: transform .28s ease, border-color .28s ease, box-shadow .28s ease; }
.capability-card:hover { transform: translateY(-5px); border-color: rgba(128,143,216,.58); box-shadow: 0 28px 70px rgba(30,48,94,.11); }
.capability-card.featured { border-color: transparent; background: linear-gradient(#fff, #fff) padding-box, linear-gradient(135deg, rgba(66,87,245,.72), rgba(116,87,246,.48), rgba(20,200,212,.62)) border-box; box-shadow: 0 22px 58px rgba(63,72,188,.11); }
.card-number { position: absolute; right: 24px; top: 20px; color: #e5eaf3; font-size: 58px; font-weight: 850; letter-spacing: -.08em; }
.featured .card-number { color: #e5e8f8; }
.card-symbol { position: relative; display: grid; place-items: center; width: 54px; height: 54px; margin-bottom: 52px; border-radius: 16px; font-size: 25px; font-weight: 400; }
.card-symbol.cyan { color: #087a83; background: #dff9fa; }
.card-symbol.violet { color: #fff; background: linear-gradient(145deg, #6672ff, #8e5cf4); box-shadow: 0 12px 26px rgba(108,95,246,.34); }
.card-symbol.green { color: #118559; background: #e0f8ef; }
.card-kicker { margin: 0 0 11px; color: var(--blue); font-size: 13px; font-weight: 800; letter-spacing: .08em; }
.featured .card-kicker { color: var(--blue); }
.capability-card h3 { margin: 0 0 17px; font-size: 26px; letter-spacing: .015em; }
.capability-card > p:not(.card-kicker) { margin: 0; color: #738097; font-size: 14px; line-height: 1.85; }
.featured > p:not(.card-kicker) { color: #738097; }
.card-tags { display: flex; gap: 7px; margin-top: 30px; }
.card-tags span { padding: 7px 10px; border-radius: 7px; color: #65718a; background: #f2f5fa; font-size: 9px; font-weight: 700; }
.mini-chart { height: 50px; display: flex; align-items: end; gap: 8px; margin-top: 28px; }
.mini-chart span { flex: 1; height: 20%; border-radius: 4px 4px 0 0; background: linear-gradient(to top, #6874ff, #2cd7d5); animation: chart 3s ease-in-out infinite alternate; }
.mini-chart span:nth-child(2) { height: 35%; animation-delay: .15s; }.mini-chart span:nth-child(3) { height: 32%; animation-delay: .3s; }.mini-chart span:nth-child(4) { height: 61%; animation-delay: .45s; }.mini-chart span:nth-child(5) { height: 75%; animation-delay: .6s; }.mini-chart span:nth-child(6) { height: 96%; animation-delay: .75s; }
.evidence-dots { display: flex; align-items: center; margin-top: 38px; }
.evidence-dots span { width: 10px; height: 10px; flex: 0 0 auto; border: 2px solid var(--green); border-radius: 50%; background: #fff; }
.evidence-dots i { flex: 1; height: 1px; background: #bfe7d7; }

.section-heading { max-width: 980px; margin: 0 auto 54px; text-align: center; }
.section-heading h2 { margin: 0; font-size: clamp(32px, 3.8vw, 48px); line-height: 1.38; letter-spacing: .035em; }
.section-heading > p:last-child { margin: 20px auto 0; color: #68758d; font-size: 16px; line-height: 1.85; }
.roles-section { padding: 112px max(30px, calc((100vw - 1260px) / 2)); background: linear-gradient(180deg, #fbfcff, #fff); }
.role-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.role-card { padding: 32px; border: 1px solid #dfe6f1; border-radius: 22px; background: rgba(255,255,255,.92); box-shadow: 0 16px 45px rgba(24,43,84,.055); }
.role-icon { display: grid; place-items: center; width: 46px; height: 46px; margin-bottom: 28px; color: var(--blue); border-radius: 14px; background: #eef1ff; font-size: 13px; font-weight: 850; letter-spacing: .04em; }
.role-card > p:first-of-type { margin: 0 0 9px; color: #5c69cb; font-size: 13px; font-weight: 800; letter-spacing: .1em; }
.role-card h3 { margin: 0 0 15px; font-size: 24px; line-height: 1.45; letter-spacing: .02em; }
.role-card > p:last-child { margin: 0; color: #6c7990; font-size: 14px; line-height: 1.85; }

.comparison-section { padding: 112px max(30px, calc((100vw - 1120px) / 2)); background: #f5f8fd; }
.comparison-heading { margin-bottom: 46px; }
.comparison-table { overflow: hidden; border: 1px solid #d9e2ef; border-radius: 22px; background: rgba(255,255,255,.95); box-shadow: 0 20px 55px rgba(20,39,81,.07); }
.comparison-row { display: grid; grid-template-columns: .65fr 1fr 1.15fr; align-items: center; min-height: 76px; border-top: 1px solid #e7ecf4; }
.comparison-row > * { padding: 18px 24px; }
.comparison-row > *:not(:last-child) { border-right: 1px solid #e7ecf4; }
.comparison-row strong { color: #26334f; font-size: 14px; }
.comparison-row span { color: #68758c; font-size: 14px; line-height: 1.6; }
.comparison-row span:last-child { color: #3443a9; font-weight: 720; background: #fafaff; }
.comparison-labels { min-height: 58px; border-top: 0; background: #eef2fb; }
.comparison-labels span { color: #536079; font-size: 12px; font-weight: 800; letter-spacing: .08em; }
.comparison-labels span:last-child { color: #4353d2; background: #edf0ff; }
.ai-boundary { display: flex; align-items: center; gap: 18px; margin-top: 24px; padding: 24px 28px; border: 1px solid #c9e9df; border-radius: 18px; background: #f1fbf7; }
.ai-boundary > span { display: grid; place-items: center; flex: 0 0 48px; width: 48px; height: 48px; color: #fff; border-radius: 15px; background: linear-gradient(145deg, var(--blue), var(--green)); font-size: 13px; font-weight: 850; }
.ai-boundary strong { color: #176c52; font-size: 16px; }
.ai-boundary p { margin: 6px 0 0; color: #55796e; font-size: 14px; line-height: 1.7; }

.evidence-section { display: grid; grid-template-columns: .95fr 1.05fr; gap: 76px; align-items: center; padding: 110px max(42px, calc((100vw - 1320px) / 2)); background: #f5f8fd; }
.evidence-copy > p:not(.section-kicker) { max-width: 560px; color: #66738a; font-size: 16px; line-height: 1.9; }
.text-link { display: inline-flex; gap: 10px; margin-top: 20px; color: var(--blue); font-weight: 760; }
.timeline-card { padding: 24px; border: 1px solid #d7e0ed; border-radius: 24px; background: rgba(255,255,255,.9); box-shadow: 0 24px 60px rgba(20,37,76,.1); }
.timeline-header { display: flex; justify-content: space-between; padding-bottom: 19px; border-bottom: 1px solid #e8edf4; font-size: 16px; font-weight: 780; }
.timeline-header small { color: #7e899e; font-weight: 600; }
.timeline { margin: 0; padding: 6px 0; list-style: none; }
.timeline li { position: relative; display: grid; grid-template-columns: 22px 1fr auto; align-items: center; gap: 12px; padding: 17px 3px; }
.timeline li:not(:last-child)::after { content: ""; position: absolute; left: 7px; top: 39px; width: 1px; height: 35px; background: #d8e0ec; }
.timeline-dot { z-index: 1; width: 15px; height: 15px; border: 4px solid #dce2fd; border-radius: 50%; background: var(--blue); }
.timeline li.current { margin: 4px 0; padding: 17px 12px 17px 3px; border-radius: 12px; background: #f1f4ff; }
.timeline li.current .timeline-dot { border-color: #c8f2e3; background: var(--green); }
.timeline strong, .timeline small { display: block; }
.timeline strong { color: #26324c; font-size: 15px; }
.timeline small { margin-top: 5px; color: #7d899f; font-size: 12px; }
.timeline b { padding: 7px 9px; color: #5b65cd; border-radius: 7px; background: #eceeff; font-size: 11px; }
.timeline-proof { display: flex; align-items: center; gap: 12px; padding: 15px; border: 1px solid #bee8d8; border-radius: 13px; background: #effbf6; }
.timeline-proof > span { display: grid; place-items: center; width: 32px; height: 32px; color: #fff; border-radius: 50%; background: var(--green); }
.timeline-proof strong, .timeline-proof small { display: block; }
.timeline-proof strong { color: #186c50; font-size: 14px; }.timeline-proof small { margin-top: 4px; color: #5f897b; font-size: 11px; }

.faq-section { display: grid; grid-template-columns: .9fr 1.1fr; gap: 64px; padding: 112px max(42px, calc((100vw - 1320px) / 2)); background: #fff; }
.faq-heading { margin: 0; text-align: left; }
.faq-heading h2 { margin: 0; font-size: clamp(34px, 3.2vw, 44px); line-height: 1.45; letter-spacing: .04em; white-space: nowrap; }
.faq-heading > p:last-child { margin-left: 0; }
.faq-list { border-top: 1px solid #dfe6f1; }
.faq-list details { border-bottom: 1px solid #dfe6f1; }
.faq-list summary { position: relative; padding: 23px 42px 23px 0; color: #25314b; font-size: 16px; font-weight: 740; line-height: 1.55; cursor: pointer; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; position: absolute; right: 4px; top: 22px; color: var(--blue); font-size: 22px; font-weight: 450; }
.faq-list details[open] summary::after { content: "−"; }
.faq-list details p { margin: -4px 42px 23px 0; color: #69768d; font-size: 14px; line-height: 1.85; }

.final-cta { margin: 0; padding: 100px 30px; color: #fff; text-align: center; background: radial-gradient(circle at 18% 20%, rgba(30,207,213,.22), transparent 28%), radial-gradient(circle at 82% 70%, rgba(119,76,246,.35), transparent 31%), var(--deep); }
.final-cta > p { color: #71dfe5; font-size: 15px; font-weight: 780; letter-spacing: .14em; }
.final-cta h2 { margin: 18px auto 32px; line-height: 1.42; letter-spacing: .035em; }
.final-cta > div { display: flex; justify-content: center; align-items: center; gap: 22px; }
.button-light { color: #18224a; background: #fff; box-shadow: none; }
.login-link-light { color: #cbd4e7; font-size: 14px; font-weight: 650; }
footer { min-height: 118px; display: grid; grid-template-columns: 1fr auto 1.35fr; align-items: center; padding: 0 max(32px, calc((100vw - 1320px) / 2)); color: #788398; font-size: 12px; }
footer p:last-child { justify-self: end; }.footer-brand { color: var(--ink); font-size: 19px; }.footer-brand .brand-mark { width: 28px; height: 28px; font-size: 14px; border-radius: 8px 8px 12px 8px; }
.footer-brand .brand-logo { width: 38px; height: 30px; }
.copyright { color: #a4acba; font-size: 10px; letter-spacing: .01em; }

@keyframes live { 50% { box-shadow: 0 0 0 9px rgba(20,200,212,0); } }
@keyframes flow { from { left: 0; } to { left: calc(100% - 8px); } }
@keyframes chart { to { filter: brightness(1.18); transform: scaleY(.82); transform-origin: bottom; } }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation: none !important; scroll-behavior: auto !important; transition: none !important; } }

@media (max-width: 1080px) {
    .hero { grid-template-columns: 1fr; gap: 58px; padding-top: 72px; }
    .hero-copy { max-width: 760px; }
    .hero-product { width: min(860px, 100%); margin: 0 auto; transform: none; }
    .evidence-section { grid-template-columns: 1fr; gap: 55px; }
    .faq-section { grid-template-columns: 1fr; gap: 42px; }
}
@media (max-width: 780px) {
    .site-header { height: 68px; grid-template-columns: 1fr auto; padding: 0 20px; }
    .site-header > .header-actions { display: none; }
    .menu-button { display: block; justify-self: end; padding: 8px 11px; color: #33405b; border: 1px solid #d9e1ee; border-radius: 9px; background: #fff; font-weight: 700; }
    .site-nav { position: absolute; left: 16px; right: 16px; top: 61px; display: none; flex-direction: column; align-items: stretch; gap: 0; padding: 10px 10px 76px; border: 1px solid #dbe3ef; border-radius: 14px; background: #fff; box-shadow: 0 20px 45px rgba(12,29,65,.14); }
    .site-nav.open { display: flex; }.site-nav a { padding: 13px; }
    .site-nav.open ~ .header-actions { position: absolute; z-index: 42; left: 26px; right: 26px; top: 218px; display: grid; grid-template-columns: .72fr 1.28fr; gap: 10px; padding-top: 10px; border-top: 1px solid #e7ebf3; }
    .site-nav.open ~ .header-actions .login-link, .site-nav.open ~ .header-actions .button { display: inline-flex; min-height: 44px; align-items: center; justify-content: center; margin: 0; padding: 0 14px; border-radius: 10px; }
    .site-nav.open ~ .header-actions .login-link { color: #34415d; border: 1px solid #d7dfec; background: #f8faff; }
    .hero { min-height: auto; padding: 64px 20px 70px; }
    h1 { font-size: clamp(42px, 12vw, 58px); line-height: 1.3; letter-spacing: .035em; }
    .hero-lead strong { font-size: 18px; }
    .hero-lead span { font-size: 15px; }
    .hero-actions { flex-direction: column; align-items: stretch; }
    .trust-list { gap: 12px 16px; }
    .product-grid { grid-template-columns: 1fr; gap: 16px; }
    .signal-line { width: 2px; height: 28px; margin: -8px auto; background: linear-gradient(var(--blue), var(--cyan)); }
    .signal-line span { left: -3px !important; animation: none; }
    .task-panel, .result-panel { min-height: auto; transform: none; }
    .product-footer { flex-wrap: wrap; }
    .statement { padding: 80px 20px 50px; }
    .statement h2 { white-space: normal; }
    .capabilities { grid-template-columns: 1fr; padding: 0 20px 80px; }
    .capability-card { min-height: 370px; }
    .roles-section, .comparison-section { padding: 80px 20px; }
    .role-grid { grid-template-columns: 1fr; }
    .section-heading { margin-bottom: 38px; }
    .comparison-row { grid-template-columns: 1fr; padding: 18px 0; }
    .comparison-row > * { padding: 7px 20px; border-right: 0 !important; }
    .comparison-row > span:last-child { background: transparent; }
    .comparison-labels { display: none; }
    .comparison-row strong::before { content: "环节 · "; color: #8a95a9; font-size: 11px; letter-spacing: .06em; }
    .comparison-row span:nth-child(2)::before { content: "传统 · "; color: #8a95a9; font-size: 11px; font-weight: 750; }
    .comparison-row span:last-child::before { content: "Vivari · "; color: var(--blue); font-size: 11px; font-weight: 800; }
    .ai-boundary { align-items: flex-start; padding: 22px; }
    .evidence-section { padding: 80px 20px; }
    .faq-section { padding: 80px 20px; }
    .faq-heading h2 { white-space: normal; }
    .final-cta { padding: 80px 20px; }
    .final-cta > div { flex-direction: column; }
    footer { grid-template-columns: 1fr; gap: 12px; justify-items: center; padding: 30px 20px; text-align: center; }
    footer p { margin: 0; } footer p:last-child { justify-self: center; }
}