:root{
  --brand:#C85C3A;
  --amber:#E6B85C;
  --ink:#2B2523;
  --paper:#FAF7F2;
  --soft:#F1EAE2;
  --text:#332E2B;
  --muted:#766C66;
  --accent:#D94A32;
  --white:#fffdf9;
  --line:#ded3c8;
  --shadow:0 18px 45px rgba(66,45,35,.09);
  --radius-lg:28px;
  --radius-md:18px;
  --shell:min(1180px,calc(100vw - 48px));
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--text);font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.75;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration-color:rgba(200,92,58,.45);text-underline-offset:.22em}
a:hover{text-decoration-color:var(--brand)}
button,input{font:inherit}
button{cursor:pointer}
.shell{width:var(--shell);margin-inline:auto}
.skip-link{position:fixed;left:18px;top:12px;z-index:999;transform:translateY(-160%);background:var(--ink);color:#fff;padding:9px 14px;border-radius:10px}
.skip-link:focus{transform:translateY(0)}
.site-header{position:sticky;top:0;z-index:50;background:rgba(250,247,242,.94);backdrop-filter:blur(14px);border-bottom:1px solid rgba(43,37,35,.08)}
.header-row{min-height:82px;display:flex;align-items:center;gap:28px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;margin-right:auto}
.brand img{width:48px;height:48px;object-fit:cover;border-radius:14px;background:var(--soft)}
.brand span{display:grid;line-height:1.2}.brand strong{font-size:1.14rem}.brand small{color:var(--muted);margin-top:5px;font-size:.75rem}
.main-nav{display:flex;align-items:center;gap:2px}
.main-nav a{display:inline-flex;padding:10px 12px;text-decoration:none;border-radius:12px;color:var(--muted);font-size:.94rem}
.main-nav a:hover,.main-nav a[aria-current="page"]{background:var(--soft);color:var(--ink)}
.search-open,.menu-toggle{border:1px solid var(--line);background:var(--white);color:var(--ink);padding:10px 14px;border-radius:999px}
.menu-toggle{display:none}
.site-main{min-height:70vh}
.eyebrow{display:inline-block;color:var(--brand);font-weight:800;font-size:.76rem;letter-spacing:.12em;text-transform:uppercase;margin-bottom:10px}
.eyebrow--light{color:#f2c77b}
h1,h2,h3{font-family:"Songti SC","STSong","SimSun",serif;color:var(--ink);line-height:1.22;margin-top:0}
h1{font-size:clamp(2.65rem,5.6vw,5.7rem);letter-spacing:-.04em;margin-bottom:20px}
h2{font-size:clamp(1.75rem,3.2vw,3rem);letter-spacing:-.025em;margin-bottom:16px}
h3{font-size:1.28rem;margin-bottom:8px}
p{margin-top:0}.lead{font-size:clamp(1.06rem,1.5vw,1.27rem);color:#554c47;max-width:780px}
.home-intro{padding:68px 0 46px}
.home-intro__grid{display:grid;grid-template-columns:1.04fr .96fr;gap:56px;align-items:end}
.home-intro__copy{padding-bottom:18px}.home-intro__copy h1{font-size:clamp(4.2rem,9vw,8.7rem);margin-bottom:8px;color:var(--ink)}
.home-intro__copy .lead{max-width:650px;margin-bottom:30px}
.home-intro__visual{margin:0;align-self:stretch;display:grid;grid-template-rows:1fr auto;gap:12px}
.home-intro__visual img{width:100%;height:100%;min-height:450px;object-fit:cover;border-radius:34px 34px 110px 34px;box-shadow:var(--shadow)}
.home-intro__visual figcaption{font-size:.82rem;color:var(--muted);padding-left:10px}
.intro-index{display:grid;border-top:1px solid var(--line)}
.intro-index a{display:grid;grid-template-columns:120px 1fr;gap:20px;padding:14px 0;border-bottom:1px solid var(--line);text-decoration:none}
.intro-index strong{color:var(--ink)}.intro-index span{color:var(--muted)}.intro-index a:hover strong{color:var(--brand)}
.section{padding:76px 0}.section--bordered{border-top:1px solid var(--line)}
.section-heading{max-width:850px;margin-bottom:34px}.section-heading p{color:var(--muted);max-width:720px}
.split-heading{display:grid;grid-template-columns:1fr .65fr;max-width:none;gap:60px;align-items:end}.split-heading p{margin-bottom:4px}
.path-list{border-top:1px solid var(--line)}
.path-item{display:grid;grid-template-columns:90px 1fr;padding:28px 0;border-bottom:1px solid var(--line);gap:28px}
.path-no{font-family:Georgia,serif;font-style:italic;font-size:2rem;color:var(--brand)}.path-item p{max-width:900px;color:var(--muted)}
.text-link{font-weight:800;color:var(--brand);text-decoration:none;border-bottom:1px solid rgba(200,92,58,.35)}
.text-link:hover{border-bottom-color:var(--brand)}
.warm-band{background:var(--soft);border-block:1px solid #e7ddd2}
.two-column{display:grid;grid-template-columns:.9fr 1.1fr;gap:72px;align-items:center;padding-block:72px}
.feature-copy p{color:#5f554f}.button-link{display:inline-flex;align-items:center;justify-content:center;background:var(--brand);color:white;text-decoration:none;border-radius:999px;padding:13px 20px;font-weight:800;margin-top:6px}
.button-link:hover{background:var(--accent)}.button-link--light{background:var(--white);color:var(--ink)}
.feature-media{margin:0}.feature-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:90px 22px 22px 22px}
.editorial-list{display:grid;grid-template-columns:repeat(2,1fr);border-top:1px solid var(--line)}
.editorial-item{padding:26px 26px 30px 0;border-bottom:1px solid var(--line);min-height:220px}.editorial-item:nth-child(2n){padding-left:28px;border-left:1px solid var(--line)}
.editorial-item h3 a{text-decoration:none}.editorial-item h3 a:hover{color:var(--brand)}.editorial-item p{color:var(--muted)}
.section-action{margin-top:26px}.use-strip{display:grid;grid-template-columns:1fr 1fr 280px;gap:38px;align-items:center;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.use-strip__title h2{font-size:2rem}.use-strip__body p{color:var(--muted)}.use-strip__body a{font-weight:800;color:var(--brand)}.use-strip figure{margin:0}.use-strip img{border-radius:20px;aspect-ratio:3/2;object-fit:cover}
.dark-band{background:var(--ink);color:#eee5df}.dark-band h2,.dark-band h3{color:#fff8f2}
.verification-layout{display:grid;grid-template-columns:1fr .86fr;gap:70px;align-items:center;padding-block:86px}.verification-layout p{color:#c8bab2}.verification-layout figure{margin:0}.verification-layout img{border-radius:24px 86px 24px 24px;aspect-ratio:3/2;object-fit:cover}
.compact-index{padding-bottom:88px}.index-columns{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}.index-columns>div{padding:24px 0;border-top:3px solid var(--brand)}.index-columns a{display:block;padding:7px 0;color:var(--muted)}
.soft-band{background:#fffaf4;border-block:1px solid #eee4da}.final-note{padding-block:68px;display:grid;grid-template-columns:.78fr 1.22fr;gap:58px;align-items:center}.final-note figure{margin:0}.final-note img{border-radius:24px;aspect-ratio:3/2;object-fit:cover}.final-links{display:flex;flex-wrap:wrap;gap:10px}.final-links a{background:var(--soft);padding:8px 12px;border-radius:999px;text-decoration:none}
.breadcrumb{width:var(--shell);margin:24px auto 0;color:var(--muted);font-size:.86rem}.breadcrumb ol{display:flex;flex-wrap:wrap;gap:8px;list-style:none;padding:0;margin:0}.breadcrumb li:not(:last-child)::after{content:"/";margin-left:8px;color:#b7aaa2}.breadcrumb a{text-decoration:none}
.page-hero{width:var(--shell);margin:34px auto 0;display:grid;grid-template-columns:1fr .82fr;gap:56px;align-items:center;padding:52px 0 64px;border-bottom:1px solid var(--line)}.page-hero__copy h1{font-size:clamp(2.8rem,5.2vw,5.1rem)}.page-hero__copy p{font-size:1.15rem;color:var(--muted);max-width:720px}.page-hero__media{margin:0}.page-hero__media img{width:100%;aspect-ratio:3/2;object-fit:cover;border-radius:24px 24px 80px 24px}
.prose-grid{display:grid;grid-template-columns:1fr 310px;gap:72px}.prose h2{font-size:2rem;margin-top:38px}.prose h2:first-child{margin-top:0}.prose p{color:#594f49}.side-index{align-self:start;position:sticky;top:112px;background:var(--soft);padding:24px;border-radius:20px}.side-index h2{font-size:1.35rem}.side-index ol{padding-left:22px}.side-index a{font-weight:800;color:var(--brand)}
.media-note{display:grid;grid-template-columns:.9fr 1.1fr;gap:58px;align-items:center}.media-note--reverse{grid-template-columns:1.1fr .9fr}.media-note figure{margin:0}.media-note img{width:100%;aspect-ratio:3/2;object-fit:cover;border-radius:24px 70px 24px 24px}
.mobile-facts{display:grid;grid-template-columns:1.08fr .92fr;gap:64px}.mobile-facts p{color:var(--muted)}.fact-panel{background:var(--soft);padding:30px;border-radius:22px}.fact-panel h2{font-size:1.6rem}.fact-panel li{margin-bottom:9px}
.alert-band{background:#f7e9e4;border-block:1px solid #ecd1c7}.alert-layout{display:flex;justify-content:space-between;gap:40px;align-items:center;padding-block:38px}.alert-layout h2{font-size:1.7rem;margin-bottom:8px}.alert-layout p{margin:0;color:#6c554d}.alert-layout a{white-space:nowrap;background:var(--accent);color:white;text-decoration:none;border-radius:999px;padding:12px 18px;font-weight:800}
.status-board .section-heading{max-width:920px}.status-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}.status-grid article{background:var(--paper);padding:26px}.status-grid strong{font-size:1.18rem;color:var(--brand)}.status-grid p{margin:10px 0 0;color:var(--muted)}
.timeline-example{padding-block:70px;display:grid;grid-template-columns:.68fr 1.32fr;gap:60px}.timeline-example ol{list-style:none;margin:0;padding:0;border-top:1px solid #5d514c}.timeline-example li{display:grid;grid-template-columns:90px 1fr;padding:18px 0;border-bottom:1px solid #5d514c}.timeline-example li strong{color:#f2c77b}.timeline-example li span{color:#c8bab2}
.topic-directory{padding-top:45px}.topic-group{padding:46px 0;border-bottom:1px solid var(--line)}.topic-group:first-child{padding-top:10px}.topic-group__head{display:grid;grid-template-columns:.7fr 1.3fr;gap:60px;align-items:end;margin-bottom:26px}.topic-group__head p{color:var(--muted)}.topic-links{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.topic-links a{display:grid;gap:4px;padding:18px 20px;border:1px solid var(--line);border-radius:16px;text-decoration:none;background:rgba(255,255,255,.35)}.topic-links a:hover{border-color:#c9a290;transform:translateY(-1px)}.topic-links span{font-size:.9rem;color:var(--muted)}
.steps ol{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(2,1fr);border-top:1px solid var(--line)}.steps li{padding:26px 26px 30px 0;border-bottom:1px solid var(--line)}.steps li:nth-child(2n){padding-left:28px;border-left:1px solid var(--line)}.steps strong{font-family:Georgia,serif;color:var(--brand);font-size:1.7rem}.steps h3{margin-top:8px}.steps p{color:var(--muted)}
.long-guide{display:grid;grid-template-columns:320px 1fr;gap:68px}.guide-intro{position:sticky;top:116px;align-self:start}.guide-intro h2{font-size:1.8rem}.guide-intro p{color:var(--muted)}.guide-sections{border-top:1px solid var(--line)}.guide-sections section{position:relative;padding:34px 0 42px 70px;border-bottom:1px solid var(--line)}.guide-number{position:absolute;left:0;top:30px;font-family:Georgia,serif;font-style:italic;font-size:1.65rem;color:var(--brand)}.guide-sections h2{font-size:2rem}.guide-sections p,.guide-sections li{color:var(--muted)}
.guide-related{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.guide-related a{display:grid;gap:5px;border:1px solid var(--line);background:white;padding:18px;border-radius:14px;text-decoration:none}.guide-related span{color:var(--muted);font-size:.9rem}
.status-detail{display:grid;grid-template-columns:repeat(2,1fr);gap:0;border-top:1px solid var(--line);border-left:1px solid var(--line);padding-bottom:90px}.status-detail article{padding:34px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}.status-detail h2{font-size:1.7rem}.status-detail p{color:var(--muted)}
.faq-list{max-width:950px}.faq-item{border-bottom:1px solid var(--line)}.faq-item h2{margin:0;font-family:inherit}.faq-item button{width:100%;display:flex;justify-content:space-between;gap:22px;text-align:left;padding:24px 0;border:0;background:transparent;font-weight:800;color:var(--ink)}.faq-item button span{color:var(--brand);font-size:1.4rem}.faq-answer{padding:0 48px 22px 0;color:var(--muted)}.faq-answer[hidden]{display:none!important}
.compact-callout{display:flex;justify-content:space-between;align-items:center;gap:44px;padding-block:42px}.compact-callout h2{font-size:1.7rem;margin-bottom:6px}.compact-callout p{margin:0;color:var(--muted)}.compact-callout a{white-space:nowrap;color:white;background:var(--brand);border-radius:999px;padding:12px 18px;text-decoration:none;font-weight:800}
.prose-wide{max-width:920px}.prose-wide h2{font-size:2rem;margin-top:42px}.prose-wide h2:first-child{margin-top:0}.prose-wide p{color:#5d534d;font-size:1.03rem}
.safety-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.safety-grid article{background:var(--soft);padding:28px;border-radius:18px}.safety-grid h2{font-size:1.65rem}.safety-grid p{color:var(--muted);margin-bottom:0}
.feedback-layout{display:grid;grid-template-columns:1.2fr .8fr;gap:62px}.feedback-steps ol{list-style:none;padding:0;margin:0;border-top:1px solid var(--line)}.feedback-steps li{display:grid;grid-template-columns:100px 1fr;padding:16px 0;border-bottom:1px solid var(--line)}.feedback-steps strong{color:var(--brand)}.feedback-note{background:var(--soft);padding:28px;border-radius:20px}.feedback-note h2{font-size:1.65rem}.feedback-note p{font-size:.9rem;color:var(--muted);margin-top:18px}
.sitemap-human{display:grid;grid-template-columns:repeat(3,1fr);gap:36px}.sitemap-human>div{border-top:3px solid var(--brand);padding-top:20px}.sitemap-human h2{font-size:1.5rem}.sitemap-human a{display:block;padding:8px 0;color:var(--muted)}
.article-page{padding:58px 0 90px}.article-header{max-width:920px;margin-bottom:48px}.article-header h1{font-size:clamp(2.5rem,5vw,4.8rem)}.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:72px}.article-body{max-width:780px}.article-body h2{font-size:1.9rem;margin-top:44px}.article-body p{font-size:1.03rem;color:#4f4742;margin-bottom:20px}.key-points{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;list-style:none;padding:0}.key-points li{background:var(--soft);padding:14px 16px;border-radius:12px}.article-note{margin-top:38px;padding:22px;border-left:4px solid var(--amber);background:#fff8ec}.article-note p{margin:7px 0 0}.article-aside{align-self:start;position:sticky;top:115px;border-top:3px solid var(--brand);padding-top:18px}.article-aside h2{font-size:1.3rem}.article-aside a{display:block;padding:10px 0;border-bottom:1px solid var(--line);color:var(--muted);text-decoration:none}.article-aside a:hover{color:var(--brand)}
.search-page{padding:62px 0 90px;max-width:960px}.search-page>header{margin-bottom:34px}.search-page>header h1{font-size:clamp(2.4rem,5vw,4.7rem)}.search-page__form{background:var(--soft);padding:22px;border-radius:18px;margin-bottom:38px}.search-page__form label{display:block;font-weight:800;margin-bottom:8px}.search-page__form>div{display:flex;gap:10px}.search-page input{flex:1;min-width:0;border:1px solid var(--line);background:white;padding:12px 14px;border-radius:12px}.search-page button{border:0;background:var(--brand);color:white;border-radius:12px;padding:12px 18px;font-weight:800}.result-count{color:var(--muted)}.search-results article{padding:24px 0;border-bottom:1px solid var(--line)}.search-results h2{font-size:1.55rem}.search-results h2 a{text-decoration:none}.search-results p{color:var(--muted)}.empty-state{padding:36px;border:1px dashed #cdbdb2;border-radius:18px}.empty-state h2{font-size:1.6rem}.empty-state a{color:var(--brand);font-weight:800}
.not-found{padding:70px 0 100px;display:grid;grid-template-columns:1fr .75fr;gap:60px;align-items:center}.error-code{font-family:Georgia,serif;font-size:6rem;color:var(--brand);line-height:1}.not-found h1{font-size:3.6rem}.not-found p{color:var(--muted)}.not-found__links{display:flex;flex-wrap:wrap;gap:10px}.not-found__links a{background:var(--soft);padding:10px 14px;border-radius:999px;text-decoration:none}.not-found figure{grid-column:2;grid-row:1 / span 4;margin:0}.not-found img{border-radius:24px 70px 24px 24px}
.search-modal[hidden]{display:none!important}.search-modal{position:fixed;inset:0;z-index:100;background:rgba(43,37,35,.64);display:grid;place-items:start center;padding-top:min(16vh,140px)}.search-modal__panel{position:relative;width:min(680px,calc(100vw - 32px));background:var(--paper);border-radius:24px;padding:30px;box-shadow:0 30px 90px rgba(0,0,0,.3)}.search-modal__panel h2{font-size:2rem;margin-bottom:8px}.search-modal__panel p{color:var(--muted)}.search-close{position:absolute;right:18px;top:18px;border:1px solid var(--line);background:white;border-radius:999px;padding:7px 11px}.search-modal label{font-weight:800;display:block;margin-bottom:8px}.search-line{display:flex;gap:10px}.search-line input{flex:1;min-width:0;padding:12px 14px;border:1px solid var(--line);border-radius:12px}.search-line button{border:0;background:var(--brand);color:white;padding:12px 17px;border-radius:12px;font-weight:800}.modal-open{overflow:hidden}
.site-footer{background:#241f1d;color:#c9bcb5;padding:64px 0 28px}.site-footer h2{font-family:inherit;color:#fff6f1;font-size:1rem}.site-footer a{color:#d7c9c2}.footer-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:60px}.footer-grid p{max-width:470px}.footer-grid ul{list-style:none;padding:0;margin:0}.footer-grid li{margin:8px 0}.footer-bottom{border-top:1px solid #4a403c;margin-top:44px;padding-top:22px;display:flex;align-items:center;gap:22px}.footer-bottom p{margin:0 auto 0 0}.back-top{border:1px solid #64554f;background:transparent;color:#e8ddd7;border-radius:999px;padding:8px 12px}
@media (max-width:1100px){:root{--shell:min(94vw,980px)}.main-nav a{padding:9px 8px;font-size:.88rem}.home-intro__grid{gap:36px}.use-strip{grid-template-columns:1fr 1fr}.use-strip figure{display:none}.status-grid{grid-template-columns:repeat(2,1fr)}.sitemap-human{grid-template-columns:1fr 1fr}}
@media (max-width:920px){.header-row{min-height:72px}.menu-toggle{display:inline-flex}.main-nav{display:none;position:absolute;left:3vw;right:3vw;top:74px;background:var(--paper);border:1px solid var(--line);box-shadow:var(--shadow);padding:10px;border-radius:16px;flex-direction:column;align-items:stretch}.main-nav.is-open{display:flex}.main-nav a{padding:11px 12px}.brand small{display:none}.home-intro__grid,.page-hero,.two-column,.verification-layout,.final-note,.prose-grid,.mobile-facts,.timeline-example,.long-guide,.article-layout,.not-found{grid-template-columns:1fr}.home-intro__visual img{min-height:320px}.split-heading,.topic-group__head{grid-template-columns:1fr;gap:12px}.use-strip{grid-template-columns:1fr}.side-index,.guide-intro,.article-aside{position:static}.media-note,.media-note--reverse{grid-template-columns:1fr}.media-note figure{order:2}.final-note figure{order:2}.timeline-example{gap:20px}.not-found figure{grid-column:auto;grid-row:auto}.feedback-layout{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.footer-grid section:first-child{grid-column:1/-1}.page-hero__media{max-width:680px}}
@media (max-width:680px){:root{--shell:calc(100vw - 28px)}.search-open{padding:9px 11px;font-size:.85rem}.brand img{width:42px;height:42px}.brand strong{font-size:1rem}.home-intro{padding-top:42px}.home-intro__copy h1{font-size:4.4rem}.intro-index a{grid-template-columns:1fr;gap:2px}.section{padding:56px 0}.editorial-list,.steps ol,.guide-related,.topic-links,.status-detail,.safety-grid,.sitemap-human,.index-columns{grid-template-columns:1fr}.editorial-item,.steps li{padding:24px 0}.editorial-item:nth-child(2n),.steps li:nth-child(2n){padding-left:0;border-left:0}.use-strip{gap:12px}.status-grid{grid-template-columns:1fr}.alert-layout,.compact-callout{align-items:flex-start;flex-direction:column}.alert-layout a,.compact-callout a{white-space:normal}.page-hero{gap:24px;padding:34px 0 48px}.page-hero__copy h1{font-size:2.7rem}.long-guide{gap:26px}.guide-sections section{padding-left:52px}.key-points{grid-template-columns:1fr}.article-page{padding-top:40px}.search-page__form>div,.search-line{flex-direction:column}.footer-grid{grid-template-columns:1fr}.footer-grid section:first-child{grid-column:auto}.footer-bottom{align-items:flex-start;flex-wrap:wrap}.footer-bottom p{width:100%}.not-found h1{font-size:2.7rem}.not-found{gap:28px}.search-modal{padding-top:60px}.search-modal__panel{padding:26px 20px 22px}.feedback-steps li{grid-template-columns:80px 1fr}.final-links{align-items:stretch;flex-direction:column}.final-links a{text-align:center}}
@media (max-width:420px){.header-row{gap:10px}.search-open{font-size:0;width:40px;height:40px;padding:0}.search-open::before{content:"搜";font-size:.9rem}.home-intro__copy h1{font-size:3.8rem}.home-intro__visual img{min-height:260px}.path-item{grid-template-columns:48px 1fr;gap:12px}.path-no{font-size:1.45rem}.page-hero__copy h1{font-size:2.45rem}.timeline-example li{grid-template-columns:66px 1fr}.breadcrumb{margin-top:16px}.site-footer{padding-top:48px}}

.glossary-grid{display:grid;grid-template-columns:repeat(2,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}
.glossary-grid article{padding:24px 28px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);background:rgba(255,255,255,.2)}
.glossary-grid h2{font-size:1.42rem;margin-bottom:9px}.glossary-grid p{color:var(--muted);margin:0}
@media (max-width:680px){.glossary-grid{grid-template-columns:1fr}.glossary-grid article{padding:22px 18px}}