:root {
    --bg: #0f1020; --deep: #090a15; --surface: #18192b; --surface-2: #202139;
    --purple: #7c3aed; --bright: #a855f7; --silver: #cbd5e1; --white: #fff;
    --muted: #9aa4b2; --line: rgba(203,213,225,.16); --radius: 8px; --shell: 1200px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; color: var(--silver); background: var(--bg); font: 16px/1.75 Inter, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif; letter-spacing: 0; -webkit-font-smoothing: antialiased; }
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; } img { display: block; max-width: 100%; } button { font: inherit; }
:focus-visible { outline: 3px solid var(--bright); outline-offset: 4px; }
.shell { width: min(calc(100% - 48px), var(--shell)); margin-inline: auto; }
.skip-link { position: fixed; z-index: 1000; top: 8px; left: 8px; padding: 10px 16px; color: white; background: var(--purple); transform: translateY(-150%); }
.skip-link:focus { transform: none; }
.section { padding: 100px 0; }
h1,h2,h3,p { margin-top: 0; } h1,h2,h3 { color: white; line-height: 1.2; }
h1 { margin-bottom: 24px; font-size: 64px; font-weight: 800; } h2 { margin-bottom: 22px; font-size: 42px; } h3 { font-size: 20px; }
.eyebrow { display: flex; align-items: center; gap: 10px; margin: 0 0 18px; color: #d8b4fe; font-size: 12px; font-weight: 700; line-height: 1.2; }
.eyebrow span { width: 28px; height: 1px; background: var(--bright); }
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .45s ease, transform .45s ease; } .reveal.is-visible { opacity: 1; transform: none; }
.site-header { position: fixed; z-index: 100; inset: 0 0 auto; height: 78px; border-bottom: 1px solid transparent; transition: .25s ease; }
.site-header.is-scrolled { height: 68px; border-color: var(--line); background: rgba(15,16,32,.9); backdrop-filter: blur(16px); }
.header-inner { display: flex; height: 100%; align-items: center; justify-content: space-between; }
.brand { display: flex; min-height: 44px; align-items: center; gap: 12px; }
.brand-icon { display: grid; width: 38px; height: 38px; grid-template-columns: repeat(3,5px); align-items: end; justify-content: center; gap: 3px; padding-bottom: 10px; border: 1px solid rgba(216,180,254,.4); border-radius: 8px; background: rgba(124,58,237,.16); }
.brand-icon i { height: 10px; background: var(--bright); } .brand-icon i:nth-child(2) { height: 17px; background: var(--silver); } .brand-icon i:nth-child(3) { height: 13px; }
.brand strong,.brand small { display: block; } .brand strong { color: white; font-size: 16px; line-height: 1.2; } .brand small { color: var(--muted); font-size: 9px; letter-spacing: .12em; }
.primary-nav ul { display: flex; gap: 8px; margin: 0; padding: 0; list-style: none; }
.primary-nav a { display: flex; min-height: 44px; align-items: center; padding: 0 14px; color: #bdc5d0; font-size: 14px; transition: .2s; }
.primary-nav a:hover,.primary-nav a[aria-current="page"] { color: white; background: rgba(168,85,247,.1); }
.menu-toggle { display: none; width: 44px; height: 44px; padding: 11px; border: 0; color: white; background: transparent; cursor: pointer; }
.menu-toggle span { display: block; height: 1px; margin: 5px 0; background: currentColor; }
.hero { position: relative; min-height: 760px; overflow: hidden; padding-top: 78px; background: #101122; }
.hero::after { position: absolute; inset: auto 0 0; height: 220px; content: ""; background: linear-gradient(180deg,transparent,var(--bg)); pointer-events: none; }
.hero-art { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: .42; filter: saturate(.85) contrast(1.08); }
.hero-grid { position: absolute; inset: 0; opacity: .17; background-image: linear-gradient(rgba(203,213,225,.16) 1px,transparent 1px),linear-gradient(90deg,rgba(203,213,225,.16) 1px,transparent 1px); background-size: 64px 64px; mask-image: linear-gradient(to right,#000,transparent 72%); }
.hero-layout { position: relative; z-index: 2; display: grid; min-height: 638px; grid-template-columns: 1.05fr .95fr; align-items: center; gap: 72px; padding-block: 64px 82px; }
.hero-copy { max-width: 650px; } .hero-lead { margin-bottom: 18px; color: white; font-size: 24px; line-height: 1.55; } .hero-summary { margin-bottom: 32px; color: #afb8c5; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.button { display: inline-flex; min-height: 48px; align-items: center; justify-content: center; gap: 16px; padding: 0 22px; border: 1px solid transparent; border-radius: 6px; color: white; font-size: 14px; font-weight: 700; transition: .2s; }
.button:hover { transform: translateY(-2px); } .button-primary { background: var(--purple); box-shadow: 0 12px 32px rgba(124,58,237,.3); } .button-primary:hover { background: var(--bright); }
.button-ghost { border-color: rgba(203,213,225,.24); background: rgba(15,16,32,.45); }
.hero-facts { display: flex; gap: 34px; margin: 42px 0 0; } .hero-facts div { display: grid; grid-template-columns: auto auto; align-items: baseline; gap: 7px; } .hero-facts dt { color: white; font-size: 20px; font-weight: 800; } .hero-facts dd { margin: 0; color: var(--muted); font-size: 12px; }
.device-stage { position: relative; min-height: 550px; }
.phone { position: absolute; z-index: 3; top: 18px; left: 50%; width: 268px; height: 548px; padding: 9px; border: 1px solid rgba(255,255,255,.4); border-radius: 40px; background: #080914; box-shadow: 0 38px 90px rgba(0,0,0,.55),0 0 70px rgba(124,58,237,.28); transform: translateX(-50%) rotate(3deg); }
.phone-top { position: absolute; z-index: 2; top: 18px; left: 50%; width: 80px; height: 22px; border-radius: 16px; background: #05050c; transform: translateX(-50%); }
.phone-screen { height: 100%; overflow: hidden; padding: 52px 18px 18px; border-radius: 32px; background: linear-gradient(160deg,#22233c,#111221 45%,#171127); }
.app-bar { display: flex; align-items: center; gap: 10px; margin-bottom: 24px; } .mini-logo { display: grid; width: 30px; height: 30px; place-items: center; border-radius: 6px; color: white; background: var(--purple); font-weight: 800; }
.app-bar b,.app-bar small { display: block; } .app-bar b { color: white; font-size: 12px; } .app-bar small { color: #7f8998; font-size: 7px; }
.screen-feature { position: relative; min-height: 166px; padding: 22px; overflow: hidden; border: 1px solid rgba(216,180,254,.22); border-radius: 8px; background: linear-gradient(145deg,rgba(124,58,237,.86),rgba(47,30,87,.86)); }
.screen-feature small,.screen-feature strong { display: block; } .screen-feature small { color: #e9d5ff; font-size: 7px; } .screen-feature strong { margin-top: 20px; color: white; font-size: 24px; line-height: 1.3; } .screen-feature i { position: absolute; right: 18px; bottom: 16px; color: white; font-style: normal; }
.screen-label { display: flex; justify-content: space-between; margin: 22px 0 10px; color: white; font-size: 10px; } .screen-label em { color: #a8b0bc; font-size: 8px; font-style: normal; }
.screen-list { display: flex; min-height: 46px; align-items: center; justify-content: space-between; margin-bottom: 8px; padding: 0 12px; border: 1px solid rgba(203,213,225,.1); border-radius: 6px; color: #d6dbe2; background: rgba(255,255,255,.035); font-size: 9px; } .screen-list i { color: #8f99a7; font-size: 7px; font-style: normal; }
.screen-nav { display: flex; justify-content: space-around; margin-top: 28px; padding-top: 15px; border-top: 1px solid rgba(203,213,225,.08); } .screen-nav i { width: 15px; height: 3px; background: #555e6c; } .screen-nav i:first-child { background: var(--bright); }
.orbit { position: absolute; top: 50%; left: 50%; border: 1px solid rgba(168,85,247,.25); border-radius: 50%; transform: translate(-50%,-50%); } .orbit-one { width: 440px; height: 440px; } .orbit-two { width: 560px; height: 560px; border-color: rgba(203,213,225,.12); }
.float-note { position: absolute; z-index: 4; min-width: 132px; padding: 13px 15px; border: 1px solid rgba(203,213,225,.22); border-radius: 7px; background: rgba(24,25,44,.78); box-shadow: 0 24px 70px rgba(3,4,15,.42); backdrop-filter: blur(12px); } .float-note span,.float-note strong { display: block; } .float-note span { color: #a7afbb; font-size: 8px; } .float-note strong { color: white; font-size: 13px; } .note-top { top: 92px; right: 0; } .note-bottom { bottom: 76px; left: -8px; }
.hero-ticker { position: absolute; z-index: 3; right: 0; bottom: 0; left: 0; border-block: 1px solid var(--line); background: rgba(15,16,32,.72); } .hero-ticker .shell { display: flex; min-height: 54px; align-items: center; justify-content: space-between; color: #adb6c2; font-size: 11px; } .hero-ticker i { width: 4px; height: 4px; border-radius: 50%; background: var(--bright); }
.app-intro { border-bottom: 1px solid var(--line); } .intro-layout { display: grid; grid-template-columns: 1fr 1fr 250px; align-items: end; gap: 70px; } .section-heading h2 { margin: 0; } .intro-copy { color: #aeb7c4; } .text-link { display: inline-flex; min-height: 44px; align-items: center; gap: 22px; margin-top: 14px; color: #d8b4fe; font-weight: 700; }
.intro-metric { padding-left: 28px; border-left: 1px solid var(--line); } .intro-metric strong,.intro-metric span,.intro-metric small { display: block; } .intro-metric strong { color: #d8b4fe; font-size: 48px; line-height: 1; } .intro-metric span { margin: 12px 0 3px; color: white; font-weight: 700; } .intro-metric small { color: var(--muted); }
.play-section,.keyword-section { background: var(--deep); } .wide-heading { display: flex; align-items: end; justify-content: space-between; gap: 40px; margin-bottom: 42px; } .wide-heading h2 { margin: 0; } .wide-heading>p { max-width: 420px; margin: 0; color: var(--muted); }
.play-grid,.article-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 16px; } .play-card { position: relative; display: flex; min-height: 320px; flex-direction: column; justify-content: space-between; padding: 26px; border: 1px solid var(--line); border-radius: 8px; background: var(--surface); transition: .25s; } .play-card:hover { border-color: rgba(168,85,247,.55); background: #1c1b33; transform: translateY(-5px); } .card-number { color: #7e8795; font-size: 12px; } .play-card h3 { margin-bottom: 12px; font-size: 26px; } .play-card p { margin: 0; color: #9fa8b5; } .round-arrow { position: absolute; top: 22px; right: 22px; display: grid; width: 42px; height: 42px; place-items: center; border: 1px solid var(--line); border-radius: 50%; color: #d8b4fe; }
.technique-section { background: #141526; } .technique-layout { display: grid; grid-template-columns: .95fr 1.05fr; gap: 80px; } .technique-panel { padding: 48px; border: 1px solid rgba(216,180,254,.25); border-radius: 8px; background: linear-gradient(145deg,#6430c5,#3b206e); } .technique-panel h2 { font-size: 36px; } .technique-panel p { color: #eee7f8; } .button-light { margin-top: 16px; color: #33214e; background: white; }
.technique-list { margin: 0; padding: 0; list-style: none; } .technique-list li { display: grid; grid-template-columns: 64px 1fr; gap: 22px; padding: 26px 0; border-bottom: 1px solid var(--line); } .technique-list span { color: #b26bfb; font-weight: 800; } .technique-list h3 { margin-bottom: 6px; } .technique-list p { margin: 0; color: var(--muted); }
.article-card { border: 1px solid var(--line); border-radius: 8px; background: rgba(255,255,255,.025); } .article-card a { display: flex; min-height: 330px; flex-direction: column; padding: 26px; } .article-card:hover { border-color: rgba(168,85,247,.48); } .article-meta { display: flex; justify-content: space-between; margin-bottom: 48px; color: #87919f; font-size: 11px; } .article-meta span { padding: 3px 8px; border: 1px solid rgba(168,85,247,.35); border-radius: 3px; color: #d8b4fe; } .article-card h3 { font-size: 23px; } .article-card p { color: var(--muted); } .article-foot { display: flex; justify-content: space-between; margin-top: auto; padding-top: 20px; border-top: 1px solid var(--line); color: #818b99; } .article-foot i { color: #d8b4fe; font-style: normal; }
.keyword-section { padding-top: 40px; } .keyword-layout { display: grid; grid-template-columns: 300px 1fr; gap: 80px; padding-block: 64px; border-top: 1px solid var(--line); } .keyword-heading h2 { margin-bottom: 12px; font-size: 32px; } .keyword-heading>p:last-child { color: var(--muted); } .keyword-cloud { display: flex; flex-wrap: wrap; align-content: center; gap: 10px; } .keyword-cloud a { display: inline-flex; min-height: 44px; align-items: center; padding: 0 16px; border: 1px solid var(--line); border-radius: 5px; color: #c2cad5; background: rgba(255,255,255,.025); transition: .2s; } .keyword-cloud a:hover { border-color: var(--bright); color: white; background: rgba(168,85,247,.1); }
.site-footer { border-top: 1px solid rgba(168,85,247,.3); background: var(--deep); } .footer-grid { display: grid; grid-template-columns: 1.5fr .65fr 1fr; gap: 80px; padding-block: 78px; } .footer-kicker { color: #a66cf0; font-size: 10px; font-weight: 700; } .footer-about h2,.footer-links h2 { margin: 12px 0 18px; font-size: 18px; } .footer-about p { max-width: 540px; color: #8f99a7; } .domain-chip { display: inline-flex; min-height: 40px; align-items: center; color: #d8b4fe; font-size: 13px; } .footer-links a { display: flex; min-height: 40px; align-items: center; color: #929cab; font-size: 14px; } .footer-links a:hover { color: white; } .footer-bottom { display: flex; min-height: 70px; align-items: center; justify-content: space-between; border-top: 1px solid var(--line); color: #697382; font-size: 12px; } .footer-bottom p { margin: 0; }
.back-top { position: fixed; z-index: 80; right: 24px; bottom: 24px; display: grid; width: 44px; height: 44px; place-items: center; border: 1px solid rgba(216,180,254,.35); border-radius: 6px; color: white; background: rgba(35,23,59,.9); opacity: 0; pointer-events: none; transform: translateY(12px); transition: .2s; } .back-top.is-visible { opacity: 1; pointer-events: auto; transform: none; }
@media (max-width: 1024px) { h1 { font-size: 52px; } h2 { font-size: 36px; } .hero-layout { gap: 24px; } .device-stage { transform: scale(.88); } .intro-layout { grid-template-columns: 1fr 1fr; gap: 44px; } .intro-metric { grid-column: 1/-1; padding: 24px 0 0; border-top: 1px solid var(--line); border-left: 0; } .footer-grid { gap: 44px; } }
@media (max-width: 820px) { .shell { width: min(calc(100% - 32px),var(--shell)); } .section { padding: 78px 0; } .site-header,.site-header.is-scrolled { height: 68px; } .menu-toggle { display: block; } .primary-nav { position: fixed; inset: 68px 0 auto; max-height: 0; overflow: hidden; background: rgba(15,16,32,.98); transition: max-height .3s; } .primary-nav.is-open { max-height: calc(100vh - 68px); border-bottom: 1px solid var(--line); } .primary-nav ul { display: block; width: min(calc(100% - 32px),var(--shell)); margin: auto; padding: 12px 0 20px; } .primary-nav a { padding: 0 4px; border-bottom: 1px solid rgba(203,213,225,.08); } .hero { padding-top: 68px; } .hero-layout { grid-template-columns: 1fr; padding-top: 80px; } .device-stage { width: min(100%,560px); margin: -10px auto 10px; } .intro-layout,.technique-layout,.keyword-layout { grid-template-columns: 1fr; gap: 40px; } .play-grid,.article-grid { grid-template-columns: 1fr; } .play-card { min-height: 240px; } .article-card a { min-height: 270px; } .footer-grid { grid-template-columns: 1fr 1fr; } .footer-about { grid-column: 1/-1; } }
@media (max-width: 560px) { .shell { width: min(calc(100% - 28px),var(--shell)); } h1 { font-size: 40px; overflow-wrap: anywhere; } h2 { font-size: 30px; } .section { padding: 64px 0; } .brand strong { font-size: 14px; } .hero-layout { min-height: auto; padding: 64px 0 110px; } .hero-lead { font-size: 20px; } .hero-actions { display: grid; grid-template-columns: 1fr 1fr; } .button { padding-inline: 14px; } .hero-facts { gap: 16px; } .hero-facts div { display: block; } .device-stage { min-height: 470px; margin-bottom: -80px; transform: scale(.8); transform-origin: top center; } .phone { top: 0; } .note-top { right: -18px; } .note-bottom { left: -18px; } .hero-ticker span:nth-of-type(even),.hero-ticker i:nth-of-type(n+3) { display: none; } .wide-heading { display: block; } .wide-heading>p { margin-top: 18px; } .technique-panel { padding: 30px 24px; } .technique-panel h2 { font-size: 29px; } .technique-list li { grid-template-columns: 42px 1fr; gap: 12px; } .footer-grid { grid-template-columns: 1fr; padding-block: 58px; } .footer-about { grid-column: auto; } .footer-bottom { display: block; padding-block: 20px; } .footer-bottom p+p { margin-top: 6px; } .back-top { right: 14px; bottom: 14px; } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *,*::before,*::after { scroll-behavior: auto!important; transition-duration: .01ms!important; animation-duration: .01ms!important; } .reveal { opacity: 1; transform: none; } }
@media (max-width: 560px) { .note-top { right: 4px; } .note-bottom { left: 4px; } }

/* Inner section pages */
.inner-page { background: var(--bg); }
.inner-page .site-header { position: sticky; background: rgba(15,16,32,.96); border-color: var(--line); }
.breadcrumbs { display: flex; min-height: 58px; align-items: center; gap: 10px; color: var(--muted); font-size: 13px; }
.breadcrumbs a { color: #d8b4fe; }
.section-hero { position: relative; overflow: hidden; padding: 84px 0 94px; border-block: 1px solid var(--line); background: linear-gradient(135deg,#17182b,#21163a 64%,#111221); }
.section-hero::after { position: absolute; right: 5%; bottom: -180px; width: 440px; height: 440px; border: 1px solid rgba(168,85,247,.28); border-radius: 50%; content: ""; }
.section-hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1fr 220px; align-items: end; gap: 70px; }
.section-hero h1 { max-width: 820px; margin-bottom: 22px; font-size: 52px; }
.section-lead { max-width: 760px; margin: 0; color: #b1bac7; font-size: 18px; }
.section-index { padding: 25px; border: 1px solid rgba(216,180,254,.28); border-radius: 8px; background: rgba(15,16,32,.48); backdrop-filter: blur(12px); }
.section-index small,.section-index strong,.section-index span { display: block; }
.section-index small { color: var(--muted); font-size: 9px; }
.section-index strong { margin: 14px 0; color: #d8b4fe; font-size: 42px; line-height: 1; }
.section-index span { color: white; font-size: 12px; }
.section-content { background: var(--deep); }
.section-card-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 16px; }
.section-card { min-height: 260px; padding: 28px; border: 1px solid var(--line); border-radius: 8px; background: var(--surface); }
.section-card>span { color: var(--bright); font-size: 12px; font-weight: 700; }
.section-card h3 { margin: 52px 0 12px; font-size: 24px; }
.section-card p { margin: 0; color: var(--muted); }
.section-note { background: #141526; }
.note-layout { display: grid; grid-template-columns: .85fr 1.15fr; gap: 80px; }
.note-layout h2 { margin: 0; font-size: 34px; }
.note-layout>p { margin: 0; color: #abb4c1; }
@media (max-width: 820px) { .section-hero-grid,.note-layout { grid-template-columns: 1fr; gap: 36px; } .section-index { max-width: 240px; } .section-card-grid { grid-template-columns: 1fr; } .section-card { min-height: 220px; } }
@media (max-width: 560px) { .section-hero { padding: 64px 0 72px; } .section-hero h1 { font-size: 38px; } .section-lead { font-size: 16px; } }

/* Article pages */
.article-detail { border-top: 1px solid var(--line); background: var(--bg); }
.article-detail-header { padding-block: 86px 64px; }
.article-detail-header h1 { max-width: 920px; margin-bottom: 24px; font-size: 52px; }
.article-deck { max-width: 820px; color: #b4bdc9; font-size: 19px; }
.article-byline { display: flex; flex-wrap: wrap; gap: 10px 26px; margin-top: 30px; color: var(--muted); font-size: 12px; }
.article-layout { display: grid; grid-template-columns: minmax(0,760px) 280px; justify-content: space-between; gap: 72px; padding-bottom: 100px; }
.article-body { min-width: 0; }
.article-summary { margin: 0 0 46px; padding: 26px 28px; border-left: 3px solid var(--bright); color: #c5ccd6; background: var(--surface); }
.article-summary strong { display: block; margin-bottom: 6px; color: #d8b4fe; font-size: 12px; }
.article-body section { padding: 38px 0; border-top: 1px solid var(--line); }
.article-body section h2 { margin-bottom: 20px; font-size: 29px; }
.article-body section p { color: #b0b9c6; font-size: 17px; line-height: 1.95; }
.article-body section p:last-child { margin-bottom: 0; }
.article-notice { margin-top: 28px; padding: 24px 26px; border: 1px solid rgba(168,85,247,.28); border-radius: 8px; background: rgba(124,58,237,.08); }
.article-notice strong { color: #d8b4fe; }
.article-notice p { margin: 7px 0 0; color: var(--muted); }
.article-sidebar { align-self: start; position: sticky; top: 92px; border-top: 2px solid var(--purple); background: var(--surface); }
.article-sidebar>div { padding: 22px; border-bottom: 1px solid var(--line); }
.article-sidebar small,.article-sidebar span { display: block; }
.article-sidebar small { margin-bottom: 8px; color: var(--muted); font-size: 10px; }
.article-sidebar a { color: #d8b4fe; font-weight: 700; }
.article-sidebar span,.article-sidebar p { margin: 0; overflow-wrap: anywhere; color: #aab3c0; font-size: 13px; }
.related-reading { border-top: 1px solid var(--line); background: var(--deep); }
.related-links { display: grid; grid-template-columns: repeat(3,1fr); gap: 16px; }
.related-links a { position: relative; display: flex; min-height: 180px; flex-direction: column; padding: 24px; border: 1px solid var(--line); border-radius: 8px; background: var(--surface); }
.related-links span { color: var(--bright); font-size: 11px; }
.related-links strong { margin-top: 28px; color: white; font-size: 18px; line-height: 1.45; }
.related-links i { position: absolute; right: 22px; bottom: 18px; color: #d8b4fe; font-style: normal; }
@media (max-width: 900px) { .article-layout { grid-template-columns: 1fr; gap: 50px; } .article-sidebar { position: static; } }
@media (max-width: 820px) { .related-links { grid-template-columns: 1fr; } }
@media (max-width: 560px) { .article-detail-header { padding-block: 64px 48px; } .article-detail-header h1 { font-size: 38px; } .article-deck { font-size: 17px; } .article-layout { padding-bottom: 70px; } .article-body section p { font-size: 16px; } }

.faq-list { display: grid; gap: 10px; }
.faq-list details { border: 1px solid var(--line); border-radius: 8px; background: var(--surface); }
.faq-list summary { padding: 18px 20px; color: white; font-weight: 700; cursor: pointer; }
.faq-list details p { margin: 0; padding: 0 20px 20px; color: var(--muted); font-size: 15px; }