:root{--pink:#D96B9A;--mauve:#B89ACB;--ink:#2B2530;--paper:#FFF9FC;--mist:#F5EDF3;--text:#322D34;--muted:#756D78;--accent:#E88A62;--line:#E8DDE5;--white:#fff;--radius:24px;--shadow:0 18px 46px rgba(43,37,48,.08);--max:1180px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--text);font-family:system-ui,-apple-system,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.75}img{max-width:100%;height:auto;display:block}a{color:var(--pink);text-decoration-thickness:1px;text-underline-offset:3px}a:hover{color:#b94f7e}.skip-link{position:fixed;left:12px;top:-60px;z-index:1000;background:var(--ink);color:white;padding:10px 14px;border-radius:10px}.skip-link:focus{top:12px}.site-header{position:sticky;top:0;z-index:80;background:rgba(255,249,252,.93);backdrop-filter:blur(14px);border-bottom:1px solid rgba(232,221,229,.85)}.header-inner{max-width:var(--max);margin:auto;display:flex;align-items:center;gap:30px;padding:14px 22px}.brand{display:flex;align-items:center;gap:10px;color:var(--ink);font-weight:800;text-decoration:none;font-size:1.18rem}.brand img{width:38px;height:38px;object-fit:contain;border-radius:10px}.primary-nav{margin-left:auto;display:flex;gap:8px;flex-wrap:wrap}.primary-nav a{color:var(--text);text-decoration:none;padding:8px 11px;border-radius:999px;font-size:.95rem}.primary-nav a:hover,.primary-nav a:focus-visible{background:var(--mist);color:var(--pink)}.menu-toggle{display:none;margin-left:auto;border:1px solid var(--line);background:white;color:var(--ink);border-radius:12px;padding:9px 12px}.hero,.page-hero,.section-wide,.flow-section,.official-strip{max-width:var(--max);margin-left:auto;margin-right:auto}.hero{display:grid;grid-template-columns:1.08fr .92fr;gap:54px;align-items:center;padding:70px 22px 48px}.eyebrow{text-transform:uppercase;letter-spacing:.12em;font-size:.78rem;font-weight:800;color:var(--pink);margin:0 0 10px}.hero h1,.page-hero h1{font-size:clamp(2.2rem,5.5vw,4.8rem);line-height:1.03;letter-spacing:-.045em;margin:0;color:var(--ink)}.lead{font-size:1.12rem;color:var(--muted);max-width:760px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}.button{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:10px 18px;border-radius:14px;font-weight:750;text-decoration:none}.button.primary{background:var(--pink);color:white}.button.secondary{background:white;color:var(--ink);border:1px solid var(--line)}.hero-media{margin:0;background:var(--mist);padding:14px;border-radius:32px;box-shadow:var(--shadow);transform:rotate(1.2deg)}.hero-media img{border-radius:22px;aspect-ratio:4/3;object-fit:cover}.hero-media figcaption{padding:10px 6px 2px;color:var(--muted);font-size:.9rem}.section-wide{padding:70px 22px}.section-heading{max-width:780px;margin-bottom:30px}.section-heading.compact{margin-bottom:20px}.section-heading h2,.flow-line h2,.official-strip h2,.download-principle h2{color:var(--ink);font-size:clamp(1.7rem,3vw,2.7rem);line-height:1.12;letter-spacing:-.025em;margin:.2em 0 .45em}.editorial-split{display:grid;grid-template-columns:.8fr 1.2fr;gap:28px;align-items:start}.editorial-split>img{border-radius:26px;position:sticky;top:96px;aspect-ratio:4/5;object-fit:cover}.story-stack{display:grid;gap:14px}.guide-item{background:white;border:1px solid var(--line);border-radius:18px;padding:22px}.guide-item h3{margin:0 0 8px;color:var(--ink);font-size:1.12rem}.guide-item p{margin:.55em 0}.guide-summary{font-weight:650;color:#5a4f5d}.flow-section{padding:24px 22px 72px}.flow-line{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);border-radius:26px;overflow:hidden;background:white}.flow-line>div{padding:24px;border-right:1px solid var(--line)}.flow-line>div:last-child{border-right:0}.flow-line span{display:inline-flex;width:34px;height:34px;border-radius:50%;background:var(--mist);align-items:center;justify-content:center;color:var(--pink);font-weight:800}.flow-line h2{font-size:1.25rem}.flow-line p{color:var(--muted);font-size:.95rem}.device-layout{display:grid;grid-template-columns:1fr 1.15fr;gap:28px}.device-copy{background:var(--ink);color:#f8f2f6;border-radius:26px;padding:28px}.device-copy p{margin-top:0}.check-list{padding-left:1.1em}.check-list li{margin:.7em 0}.device-images{display:grid;grid-template-columns:1fr .7fr;gap:14px;align-items:end}.device-images img{border-radius:24px;object-fit:cover;height:100%}.note-columns{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.official-strip{margin-top:30px;margin-bottom:40px;display:grid;grid-template-columns:.85fr 1.15fr;gap:32px;align-items:center;padding:28px;background:var(--mist);border-radius:30px}.official-strip img{border-radius:22px;aspect-ratio:16/11;object-fit:cover}.text-link{font-weight:800}.related-section{padding-top:44px}.related-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.related-link{display:grid;gap:5px;background:white;border:1px solid var(--line);border-radius:18px;padding:18px;text-decoration:none;color:var(--text)}.related-link strong{color:var(--pink)}.related-link span{color:var(--muted)}.page-hero{padding:64px 22px 28px;display:grid;grid-template-columns:1.1fr .9fr;gap:36px;align-items:center}.page-hero img{border-radius:26px;aspect-ratio:16/11;object-fit:cover;box-shadow:var(--shadow)}.content-index{display:grid;grid-template-columns:.6fr 1.4fr;gap:28px}.index-intro{position:sticky;top:96px;align-self:start}.index-intro h2{margin-top:0;color:var(--ink);font-size:2rem}.content-index>.guide-item{grid-column:2}.deep-notes{border-top:1px solid var(--line)}.dense-notes{columns:2;column-gap:18px}.dense-notes .guide-item{break-inside:avoid;margin:0 0 18px}.two-column-guide,.official-facts,.download-layout,.vip-layout{display:grid;grid-template-columns:.68fr 1.32fr;gap:30px;align-items:start}.sticky-note,.vip-aside{position:sticky;top:96px;background:var(--mist);padding:22px;border-radius:20px}.sticky-note h2,.vip-aside h2{margin-top:0;color:var(--ink)}.sticky-note li,.vip-aside li{margin:.5em 0}.guide-flow{display:grid;gap:14px}.domain-card{position:sticky;top:96px;background:var(--ink);color:white;padding:26px;border-radius:24px}.domain-card span{display:block;color:#dbcfe0}.domain-card strong{display:block;font-size:1.65rem;margin:6px 0 12px}.download-principle{position:sticky;top:96px}.download-principle p{color:var(--muted)}.vip-aside{background:#fff0e8;border:1px solid #f4c7b4}.not-found{max-width:760px;margin:0 auto;padding:110px 22px 150px}.not-found h1{font-size:clamp(2.5rem,7vw,5.4rem);line-height:1;margin:.15em 0;color:var(--ink)}.site-footer{margin-top:70px;background:var(--ink);color:#e9dfe7}.footer-inner{max-width:var(--max);margin:auto;padding:44px 22px;display:grid;grid-template-columns:1.2fr .8fr;gap:30px}.footer-inner strong{font-size:1.25rem;color:white}.footer-inner p{max-width:620px}.footer-inner nav{display:grid;gap:8px;align-content:start}.footer-inner a{color:#f4b8d0}.copyright{max-width:var(--max);margin:0 auto;padding:16px 22px 28px;border-top:1px solid rgba(255,255,255,.12);font-size:.88rem;color:#cfc1cb}:focus-visible{outline:3px solid var(--accent);outline-offset:3px}@media(max-width:900px){.hero,.page-hero,.editorial-split,.device-layout,.official-strip,.content-index,.two-column-guide,.official-facts,.download-layout,.vip-layout{grid-template-columns:1fr}.editorial-split>img,.index-intro,.sticky-note,.domain-card,.download-principle,.vip-aside{position:static}.content-index>.guide-item{grid-column:auto}.flow-line{grid-template-columns:1fr 1fr}.flow-line>div{border-bottom:1px solid var(--line)}.note-columns{grid-template-columns:1fr}.dense-notes{columns:1}.page-hero img{max-height:360px;width:100%}.device-images{min-height:300px}}@media(max-width:720px){.header-inner{padding:12px 16px}.menu-toggle{display:inline-flex}.primary-nav{display:none;position:absolute;left:16px;right:16px;top:66px;background:white;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);padding:10px;flex-direction:column}.primary-nav.open{display:flex}.primary-nav a{padding:11px 12px}.hero,.page-hero,.section-wide,.flow-section{padding-left:16px;padding-right:16px}.hero{padding-top:46px;gap:28px}.hero h1,.page-hero h1{font-size:clamp(2.25rem,12vw,3.7rem)}.flow-line{grid-template-columns:1fr}.flow-line>div{border-right:0}.device-images{grid-template-columns:1fr}.device-images img{max-height:300px;width:100%}.related-grid{grid-template-columns:1fr}.footer-inner{grid-template-columns:1fr;padding-left:16px;padding-right:16px}.official-strip{margin-left:16px;margin-right:16px}.hero-actions{flex-direction:column;align-items:stretch}.button{width:100%}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}}