:root{--pink:#D96B9A;--violet:#B89ACB;--deep:#2B2530;--bg:#FFF9FC;--soft:#F5EDF3;--text:#322D34;--muted:#756D78;--accent:#E88A62;--line:#eadde5;--white:#fff;--shadow:0 18px 60px rgba(62,42,55,.09);--radius:24px;--max:1180px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);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:inherit;text-decoration:none}button,input{font:inherit}.skip-link{position:fixed;left:12px;top:12px;z-index:99;background:var(--deep);color:white;padding:10px 14px;border-radius:10px;transform:translateY(-180%)}.skip-link:focus{transform:none}.site-header{position:sticky;top:0;z-index:50;background:rgba(255,249,252,.92);backdrop-filter:blur(18px);border-bottom:1px solid rgba(234,221,229,.8)}.header-inner{max-width:var(--max);margin:auto;padding:14px 24px;display:flex;align-items:center;justify-content:space-between;gap:26px}.brand{display:flex;align-items:center;gap:11px}.brand img{border-radius:14px}.brand span{display:grid;line-height:1.2}.brand strong{font-size:1.05rem}.brand small{font-size:.72rem;color:var(--muted);margin-top:4px}.site-nav{display:flex;align-items:center;gap:6px}.site-nav a{padding:9px 13px;border-radius:999px;color:var(--muted);font-weight:650}.site-nav a:hover,.site-nav a[aria-current=page]{background:var(--soft);color:var(--pink)}.nav-toggle{display:none;border:0;background:transparent;padding:8px}.nav-toggle span{display:block;width:22px;height:2px;background:var(--deep);margin:4px}.nav-toggle b{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}main{min-height:65vh}.section-pad,.home-hero,.page-intro,.breadcrumbs{max-width:var(--max);margin:auto;padding-left:24px;padding-right:24px}.home-hero{padding-top:74px;padding-bottom:72px;display:grid;grid-template-columns:1.08fr .92fr;gap:60px;align-items:center}.eyebrow{margin:0 0 12px;color:var(--pink);font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;font-weight:800}.home-hero h1,.page-intro h1{font-size:clamp(2.5rem,5.6vw,5.2rem);line-height:1.02;letter-spacing:-.045em;margin:0;color:var(--deep);max-width:820px}.page-intro h1{font-size:clamp(2.3rem,4.7vw,4.7rem)}.lede{font-size:1.08rem;color:var(--muted);max-width:720px;margin:22px 0 0}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}.button{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 18px;border-radius:14px;font-weight:750;border:1px solid transparent}.button.primary{background:var(--pink);color:white;box-shadow:0 10px 30px rgba(217,107,154,.22)}.button.ghost{border-color:var(--line);background:white;color:var(--deep)}.button:hover{transform:translateY(-1px)}.intent-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:34px 0 0}.intent-strip div{padding:14px;border-top:1px solid var(--line)}.intent-strip dt{font-size:.72rem;color:var(--muted)}.intent-strip dd{margin:4px 0 0;font-weight:700}.hero-visual{margin:0}.hero-visual img{width:100%;aspect-ratio:4/5;object-fit:cover;border-radius:36px;box-shadow:var(--shadow)}.hero-visual figcaption{font-size:.8rem;color:var(--muted);margin-top:10px}.section-pad{padding-top:76px;padding-bottom:76px}.section-heading{max-width:760px;margin-bottom:34px}.section-heading h2,.next-route h2,.closing-map h2,.device-ribbon h2{font-size:clamp(1.9rem,3.7vw,3.3rem);line-height:1.1;letter-spacing:-.03em;margin:0;color:var(--deep)}.section-heading p:not(.eyebrow){color:var(--muted);font-size:1.02rem}.topic-rows{border-top:1px solid var(--line)}.topic-row{display:grid;grid-template-columns:.75fr 1.25fr;gap:40px;padding:26px 0;border-bottom:1px solid var(--line);align-items:start}.topic-row h3{margin:6px 0 0;font-size:1.35rem}.topic-row p{margin:0;color:var(--muted)}.topic-kicker{font-size:.72rem;color:var(--pink);font-weight:800}.soft-panel{background:var(--soft);max-width:none}.soft-panel>.section-heading,.soft-panel>.asym-grid,.soft-panel>.article-stack{max-width:var(--max);margin-left:auto;margin-right:auto;padding-left:24px;padding-right:24px}.asym-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:28px}.feature-story{background:white;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}.feature-story img{width:100%;aspect-ratio:16/8.5;object-fit:cover}.feature-story div{padding:28px}.feature-story h3{font-size:1.7rem;line-height:1.2;margin:0 0 12px}.feature-story p{color:var(--muted)}.text-link{color:var(--pink);font-weight:750}.micro-notes,.notes-grid{display:grid;gap:14px}.note-card{background:rgba(255,255,255,.78);border:1px solid rgba(255,255,255,.92);border-radius:18px;padding:20px}.note-card h3{margin:3px 0 8px;font-size:1.1rem}.note-card p{margin:0;color:var(--muted)}.compact-list{margin:14px 0 0;padding-left:20px;color:var(--muted)}.notes-grid{grid-template-columns:repeat(2,1fr)}.device-ribbon{display:grid;grid-template-columns:.85fr 1.15fr;gap:44px;align-items:center}.device-ribbon img{aspect-ratio:4/3;object-fit:cover;border-radius:28px}.split-links{display:grid;grid-template-columns:1fr 1fr;gap:16px}.split-links a{display:grid;gap:8px;padding:26px;border:1px solid var(--line);border-radius:22px;background:white}.split-links span{color:var(--pink);font-size:.8rem;font-weight:800}.split-links strong{font-size:1.35rem;line-height:1.3}.split-links small{color:var(--muted)}.closing-map{display:flex;justify-content:space-between;align-items:end;gap:30px}.pill-nav{display:flex;gap:8px;flex-wrap:wrap}.pill-nav a{padding:10px 14px;border:1px solid var(--line);border-radius:999px;background:white}.breadcrumbs{padding-top:22px}.breadcrumbs ol{list-style:none;display:flex;gap:8px;padding:0;margin:0;color:var(--muted);font-size:.82rem}.breadcrumbs li:not(:last-child)::after{content:'›';margin-left:8px;color:#b2a7af}.page-intro{padding-top:60px;padding-bottom:58px;display:grid;grid-template-columns:1fr .65fr;gap:50px;align-items:end}.page-intro img{aspect-ratio:4/3;object-fit:cover;border-radius:28px}.text-intro{grid-template-columns:1fr;max-width:var(--max)}.compact-intro{grid-template-columns:1.1fr .55fr}.browser-layout{display:grid;grid-template-columns:220px 1fr;gap:48px;align-items:start}.sticky-index{position:sticky;top:100px;display:grid;gap:8px;padding:20px;background:white;border:1px solid var(--line);border-radius:18px}.sticky-index strong{margin-bottom:6px}.sticky-index a{color:var(--muted);padding:5px 0}.article-stack{display:grid;gap:18px}.article-stack.dense{grid-template-columns:1fr 1fr}.long-note{padding:26px 0;border-bottom:1px solid var(--line)}.long-note span{font-size:.74rem;color:var(--pink);font-weight:800}.long-note h2,.long-note h3{margin:6px 0 12px;line-height:1.28}.long-note h2{font-size:1.7rem}.long-note h3{font-size:1.28rem}.long-note p{color:var(--muted);margin:8px 0}.next-route{display:grid;grid-template-columns:.7fr 1.3fr;gap:40px;align-items:center}.next-route img{border-radius:26px}.identity-grid,.download-steps,.vip-principles{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.identity-grid article,.download-steps article,.vip-principles article{background:white;border:1px solid var(--line);padding:26px;border-radius:22px}.identity-grid h2,.download-steps h2,.vip-principles h2{font-size:1.35rem;line-height:1.25}.domain-display{font:700 1.15rem ui-monospace,SFMono-Regular,Consolas,monospace;color:var(--pink)}.download-steps span{display:inline-grid;place-items:center;width:38px;height:38px;border-radius:12px;background:var(--soft);color:var(--accent);font-weight:900}.link-note{display:flex;justify-content:space-between;align-items:center;gap:26px;border-top:1px solid var(--line)}.link-note>div{max-width:760px}.link-note h2{font-size:2rem;line-height:1.2}.error-page{text-align:center;max-width:800px}.error-code{font-size:clamp(5rem,16vw,11rem);font-weight:900;line-height:1;color:var(--soft);text-shadow:0 0 0 var(--pink);-webkit-text-stroke:1px var(--pink);margin:20px 0}.error-page h1{font-size:2.2rem}.site-footer{margin-top:30px;background:var(--deep);color:#f8eef4;padding:46px 24px 26px}.footer-grid{max-width:var(--max);margin:auto;display:grid;grid-template-columns:1.2fr .8fr;gap:50px}.footer-grid p{color:#cbbdca;max-width:620px}.footer-grid nav{display:grid;grid-template-columns:1fr 1fr;gap:8px}.footer-grid a{color:#e8d9e4}.copyright{max-width:var(--max);margin:36px auto 0;padding-top:18px;border-top:1px solid rgba(255,255,255,.12);font-size:.8rem;color:#a99aa6}@media(max-width:900px){.home-hero,.page-intro,.device-ribbon,.next-route{grid-template-columns:1fr}.home-hero{padding-top:50px}.hero-visual img{aspect-ratio:16/9}.asym-grid{grid-template-columns:1fr}.browser-layout{grid-template-columns:1fr}.sticky-index{position:static;grid-template-columns:repeat(5,1fr);overflow:auto}.identity-grid,.download-steps,.vip-principles{grid-template-columns:1fr 1fr}.closing-map,.link-note{align-items:flex-start;flex-direction:column}.article-stack.dense{grid-template-columns:1fr}}@media(max-width:680px){.header-inner{padding:11px 16px}.nav-toggle{display:block}.site-nav{display:none;position:absolute;top:68px;left:14px;right:14px;background:white;padding:12px;border-radius:18px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.site-nav.open{display:flex}.site-nav a{padding:12px}.section-pad,.home-hero,.page-intro,.breadcrumbs{padding-left:16px;padding-right:16px}.section-pad{padding-top:54px;padding-bottom:54px}.home-hero{padding-bottom:52px}.home-hero h1,.page-intro h1{font-size:2.55rem}.intent-strip{grid-template-columns:1fr}.topic-row{grid-template-columns:1fr;gap:8px}.notes-grid{grid-template-columns:1fr}.split-links{grid-template-columns:1fr}.identity-grid,.download-steps,.vip-principles{grid-template-columns:1fr}.sticky-index{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1fr}.footer-grid nav{grid-template-columns:1fr}.soft-panel>.section-heading,.soft-panel>.asym-grid,.soft-panel>.article-stack{padding-left:16px;padding-right:16px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}:focus-visible{outline:3px solid var(--accent);outline-offset:3px;border-radius:6px}

.diagnose-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:34px;align-items:start}.diagnose-form{display:grid;gap:15px;background:var(--soft);padding:24px;border-radius:22px}.diagnose-form label{display:grid;gap:6px;font-weight:750}.diagnose-form select{width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:12px;background:white;color:var(--text)}.diagnose-result{background:white;border:1px solid var(--line);border-radius:24px;padding:28px}.diagnose-result h2{font-size:1.8rem;line-height:1.25}.diagnose-result li{margin:12px 0;color:var(--muted)}.reference-item{padding:26px 0;border-bottom:1px solid var(--line)}.reference-item h2{font-size:1.35rem;margin:0 0 8px}.reference-item p{color:var(--muted);margin:8px 0}@media(max-width:820px){.diagnose-layout{grid-template-columns:1fr}}
