:root{
  --pink:#D96B9A;--purple:#B89ACB;--ink:#2B2530;--bg:#FFF9FC;--soft:#F5EDF3;--text:#322D34;--muted:#756D78;--accent:#E88A62;
  --line:#eadce4;--white:#fff;--shadow:0 18px 48px rgba(43,37,48,.08);--radius:26px;--content:1180px;
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;line-height:1.75}
img{display:block;max-width:100%;height:auto}a{color:inherit;text-decoration:none}button,input,textarea,select{font:inherit}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid color-mix(in srgb,var(--accent) 70%,white);outline-offset:3px}.skip-link{position:fixed;left:16px;top:-60px;z-index:1000;background:var(--ink);color:#fff;padding:10px 16px;border-radius:10px}.skip-link:focus{top:16px}
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,249,252,.92);backdrop-filter:blur(18px);border-bottom:1px solid rgba(217,107,154,.14)}.header-inner{max-width:var(--content);margin:auto;padding:14px 24px;display:flex;align-items:center;gap:28px}.brand{display:flex;align-items:center;gap:12px;min-width:max-content}.brand img{width:46px;height:46px;object-fit:contain}.brand span{display:flex;flex-direction:column;line-height:1.25}.brand strong{font-size:1.08rem;color:var(--ink)}.brand small{margin-top:4px;color:var(--muted)}.primary-nav{margin-left:auto;display:flex;gap:6px;align-items:center}.primary-nav a{padding:9px 13px;border-radius:999px;color:#5d5560}.primary-nav a:hover,.primary-nav a[aria-current="page"]{background:var(--soft);color:var(--pink)}.nav-toggle{display:none;margin-left:auto;border:1px solid var(--line);background:#fff;border-radius:12px;padding:8px 12px;color:var(--ink)}
.hero{max-width:1280px;margin:0 auto;padding:68px 38px 46px;display:grid;grid-template-columns:minmax(0,1.03fr) minmax(360px,.97fr);gap:52px;align-items:center}.hero-copy{padding-left:28px}.eyebrow{margin:0 0 12px;color:var(--pink);font-weight:800;letter-spacing:.08em;font-size:.82rem}.hero h1,.page-intro h1{margin:0;color:var(--ink);font-size:clamp(2.5rem,5vw,5.2rem);line-height:1.04;letter-spacing:-.05em}.hero .lead,.page-intro .lead{font-size:1.12rem;color:#5f5661;max-width:720px;margin:24px 0 0}.hero-actions{display:flex;align-items:center;gap:20px;margin-top:30px;flex-wrap:wrap}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 20px;border-radius:14px;font-weight:760}.btn.primary{background:var(--ink);color:#fff;box-shadow:0 12px 28px rgba(43,37,48,.18)}.btn.subtle{background:var(--soft);color:var(--ink)}.btn.accent{background:var(--accent);color:#fff}.text-link,.inline-arrow{color:var(--pink);font-weight:760}.hero-points{margin:30px 0 0;padding:0;list-style:none;display:grid;gap:10px;color:var(--muted)}.hero-points li{position:relative;padding-left:24px}.hero-points li:before{content:"";position:absolute;width:8px;height:8px;border-radius:50%;left:3px;top:.72em;background:var(--purple)}.hero-media{margin:0;position:relative}.hero-media:before{content:"";position:absolute;inset:8% -3% -5% 12%;background:linear-gradient(140deg,rgba(217,107,154,.18),rgba(184,154,203,.20));border-radius:38px;filter:blur(1px);z-index:-1}.hero-media img{width:100%;border-radius:34px;box-shadow:var(--shadow);aspect-ratio:1.38/1;object-fit:cover}
.section-shell{max-width:var(--content);margin:0 auto;padding:68px 24px}.section-heading{margin-bottom:34px;display:grid;gap:6px}.section-heading.narrow{max-width:760px}.section-heading h2,.split-section h2,.quiet-section h2,.download-strip h2,.next-route h2,.download-decision h2{margin:0;color:var(--ink);font-size:clamp(1.8rem,3vw,3rem);line-height:1.18;letter-spacing:-.03em}.section-heading p,.copy-block p,.quiet-section p,.download-strip p,.next-route p{margin:8px 0 0;color:var(--muted)}.feature-band{display:grid;grid-template-columns:1.05fr .95fr;gap:42px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:34px;padding:26px;box-shadow:var(--shadow)}.feature-band img{border-radius:24px;width:100%;aspect-ratio:1.5/1;object-fit:cover}.feature-band h3{font-size:1.85rem;margin:0 0 12px;color:var(--ink)}.feature-band p{color:var(--muted)}.path-section{padding-top:42px}.path-flow{display:grid;grid-template-columns:1.25fr 1fr .9fr .85fr;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.path-flow a{padding:26px 22px;display:grid;gap:8px;border-right:1px solid var(--line);transition:.2s ease}.path-flow a:last-child{border-right:0}.path-flow a:hover{background:#fff}.path-flow strong{font-size:1.05rem;color:var(--ink)}.path-flow span{color:var(--muted);font-size:.94rem}.split-section{display:grid;grid-template-columns:.92fr 1.08fr;gap:48px;align-items:center}.split-section img{border-radius:32px;box-shadow:var(--shadow)}.copy-block{padding:24px}.copy-block .btn{margin-top:24px}.quiet-section{padding-top:42px}.quiet-grid{display:grid;grid-template-columns:1.3fr .7fr;gap:32px;background:var(--soft);border-radius:34px;padding:40px}.note-card{background:#fff;border-radius:24px;padding:28px}.note-card h3{margin-top:0}.note-card code{display:block;background:var(--ink);color:#fff;padding:12px 16px;border-radius:12px;font-size:1rem;overflow-wrap:anywhere}.download-strip{display:grid;grid-template-columns:.78fr 1.22fr;gap:48px;align-items:center}.download-strip img{border-radius:28px}.compact-faq{padding-top:34px}.faq-list{display:grid;gap:12px}.faq-item{background:#fff;border:1px solid var(--line);border-radius:18px;padding:0 20px}.faq-item summary{cursor:pointer;padding:18px 0;font-weight:760;color:var(--ink)}.faq-answer{padding:0 0 18px;color:var(--muted)}.faq-answer p{margin:0}
.breadcrumb{max-width:var(--content);margin:18px auto 0;padding:0 24px}.breadcrumb ol{display:flex;gap:10px;list-style:none;padding:0;margin:0;color:var(--muted);font-size:.9rem}.breadcrumb li+li:before{content:"/";margin-right:10px;color:#b9acb7}.breadcrumb a:hover{color:var(--pink)}.page-intro{max-width:var(--content);margin:0 auto;padding:52px 24px 26px;display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center}.page-intro img{border-radius:28px;aspect-ratio:1.72/1;object-fit:cover;box-shadow:var(--shadow)}.page-intro h1{font-size:clamp(2.3rem,4.7vw,4.5rem)}
.info-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.info-item{background:#fff;border:1px solid var(--line);border-radius:22px;padding:24px}.info-item h3{margin:0 0 10px;font-size:1.18rem;color:var(--ink)}.info-item p{margin:0;color:var(--muted)}.info-item .detail{margin-top:10px;color:#5d555f}.info-list.dense{grid-template-columns:1fr}.desktop-layout{display:grid;grid-template-columns:300px minmax(0,1fr);gap:34px;align-items:start}.desktop-index{position:sticky;top:100px;background:var(--ink);color:#fff;border-radius:24px;padding:24px}.desktop-index h2{margin-top:0;font-size:1.25rem}.desktop-index ol{margin:0;padding-left:20px;color:#e9dfe7}.desktop-index li+li{margin-top:10px}.reading-stream{padding-top:38px}.note-stream{columns:2 420px;column-gap:18px}.stream-item{break-inside:avoid;background:#fff;border:1px solid var(--line);border-radius:18px;padding:20px;margin:0 0 18px}.stream-item h3{margin:0 0 10px;color:var(--ink);font-size:1.02rem}.stream-item p{color:var(--muted);margin:0}.stream-item p+p{margin-top:10px;color:#5f5661}.next-route{border-top:1px solid var(--line);margin-top:24px}.link-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}.link-row a{padding:11px 16px;border-radius:999px;background:#fff;border:1px solid var(--line);font-weight:720}.link-row a:hover{border-color:var(--pink);color:var(--pink)}
.domain-panel{display:grid;grid-template-columns:.72fr 1.28fr;gap:38px;align-items:center}.domain-card{background:var(--ink);color:#fff;border-radius:28px;padding:30px}.domain-card span{display:block;color:#cabccc}.domain-card strong{display:block;font-size:clamp(1.8rem,3vw,3.2rem);margin:8px 0;overflow-wrap:anywhere}.domain-card p{color:#e2d8e0}.domain-panel h2{font-size:2rem;margin-top:0;color:var(--ink)}.download-decision{padding-bottom:26px}.decision-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:28px}.decision-grid article{background:#fff;border:1px solid var(--line);border-radius:24px;padding:26px}.decision-grid article:first-child{border-color:rgba(217,107,154,.4)}.decision-grid h3{margin-top:0}.decision-grid p{color:var(--muted)}.decision-grid a{color:var(--pink);font-weight:760}.not-found{max-width:760px;margin:0 auto;padding:110px 24px 150px;text-align:center}.not-found h1{font-size:clamp(2.5rem,7vw,5rem);margin:0;color:var(--ink)}.not-found p{color:var(--muted)}.not-found .link-row{justify-content:center}
.site-footer{margin-top:56px;background:var(--ink);color:#fff;padding:44px 24px 26px}.footer-inner{max-width:var(--content);margin:auto;display:flex;justify-content:space-between;gap:30px}.footer-inner p{color:#cbbfca;max-width:620px}.footer-inner nav{display:grid;gap:8px;align-content:start}.footer-inner nav a{color:#eadfe7}.copyright{max-width:var(--content);margin:34px auto 0;padding-top:18px;border-top:1px solid rgba(255,255,255,.12);color:#a99ba7;font-size:.9rem}
@media(max-width:900px){.hero,.page-intro,.split-section,.download-strip,.domain-panel{grid-template-columns:1fr}.hero-copy{padding-left:0}.hero-media{max-width:720px}.feature-band{grid-template-columns:1fr}.path-flow{grid-template-columns:1fr 1fr}.path-flow a:nth-child(2){border-right:0}.path-flow a:nth-child(-n+2){border-bottom:1px solid var(--line)}.quiet-grid{grid-template-columns:1fr}.desktop-layout{grid-template-columns:1fr}.desktop-index{position:static}.info-list{grid-template-columns:1fr}.page-intro img{max-height:420px;width:100%}}
@media(max-width:760px){.header-inner{padding:12px 16px}.brand small{display:none}.nav-toggle{display:block}.primary-nav{display:none;position:absolute;top:72px;left:12px;right:12px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:10px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.primary-nav.is-open{display:flex}.primary-nav a{padding:12px 14px}.hero{padding:44px 18px 30px;grid-template-columns:1fr}.section-shell{padding:50px 18px}.page-intro{padding:36px 18px 18px}.breadcrumb{padding:0 18px}.path-flow{grid-template-columns:1fr}.path-flow a,.path-flow a:nth-child(2){border-right:0;border-bottom:1px solid var(--line)}.path-flow a:last-child{border-bottom:0}.quiet-grid{padding:26px}.decision-grid{grid-template-columns:1fr}.footer-inner{flex-direction:column}.note-stream{columns:1}.feature-band{padding:16px}.hero h1,.page-intro h1{letter-spacing:-.035em}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important;animation:none!important}}
.diagnostics-section{padding-top:36px}.diagnostic-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.diagnostic-item{background:linear-gradient(180deg,#fff,#fffafd);border:1px solid var(--line);border-radius:18px;padding:18px}.diagnostic-item h3{margin:0 0 8px;color:var(--ink);font-size:1rem;line-height:1.45}.diagnostic-item p{margin:0;color:var(--muted);font-size:.94rem}.diagnostic-item p+p{margin-top:9px;color:#625964}@media(max-width:980px){.diagnostic-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:640px){.diagnostic-grid{grid-template-columns:1fr}}
.pager{margin-top:26px;display:flex;align-items:center;justify-content:center;gap:14px}.pager a{padding:9px 14px;border:1px solid var(--line);border-radius:999px;background:#fff;font-weight:700}.pager span{color:var(--muted)}