:root {
  --ink: #171717;
  --ink-2: #242424;
  --paper: #f6f1e7;
  --paper-2: #fffaf2;
  --red: #8d2f2a;
  --red-2: #b64d3e;
  --gold: #c79a55;
  --gold-pale: #ecd6a7;
  --muted: #756e65;
  --line: #dfd4c3;
  --white: #fffdf8;
  --shadow: 0 18px 50px rgba(40, 27, 16, .09);
  --serif: Georgia, 'Noto Serif SC', 'Songti SC', serif;
  --sans: Inter, 'PingFang SC', 'Microsoft YaHei', sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--sans); line-height: 1.75; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font: inherit; }
.wrap { width: min(1180px, calc(100% - 48px)); margin: auto; }
.site-header { background: rgba(246,241,231,.94); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 10; backdrop-filter: blur(14px); }
.nav-wrap { height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.brand { display: flex; align-items: center; gap: 12px; font-weight: 800; letter-spacing: .04em; }
.brand-mark { width: 40px; height: 40px; border: 1px solid var(--gold); background: var(--ink); color: var(--gold-pale); display: grid; place-items: center; font-family: var(--serif); font-size: 20px; position: relative; }
.brand-mark:after { content: ''; position: absolute; width: 8px; height: 8px; border: 1px solid var(--gold); border-radius: 50%; right: -5px; top: -5px; }
.brand small { display: block; font-size: 10px; letter-spacing: .16em; color: var(--muted); font-weight: 600; margin-top: -4px; }
.nav { display: flex; gap: 20px; align-items: center; font-size: 14px; }
.nav a { padding: 8px 0; color: #4e4943; }
.nav a:hover, .nav a.active { color: var(--red); border-bottom: 2px solid var(--red); }
.nav-toggle { display: none; background: none; border: 0; font-size: 26px; color: var(--ink); }
.hero { padding: 84px 0 72px; background: radial-gradient(circle at 80% 15%, rgba(199,154,85,.22), transparent 30%), linear-gradient(135deg, var(--paper), #efe4d4); }
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 66px; align-items: center; }
.eyebrow { color: var(--red); font-size: 12px; letter-spacing: .2em; font-weight: 800; text-transform: uppercase; }
.hero h1 { font-family: var(--serif); font-size: clamp(44px, 6vw, 78px); line-height: 1.14; margin: 16px 0 20px; letter-spacing: .02em; }
.hero h1 em { font-style: normal; color: var(--red); }
.hero p { font-size: 18px; color: #5d554c; max-width: 600px; }
.hero-actions { display: flex; gap: 14px; margin-top: 30px; flex-wrap: wrap; }
.btn { display: inline-flex; align-items: center; gap: 10px; padding: 12px 20px; border: 1px solid var(--red); color: var(--white); background: var(--red); font-weight: 700; }
.btn.secondary { background: transparent; color: var(--red); border-color: var(--line); }
.hero-art { min-height: 390px; position: relative; background: var(--ink); overflow: hidden; box-shadow: var(--shadow); }
.hero-art:before { content: ''; position: absolute; inset: 25px; border: 1px solid rgba(236,214,167,.35); }
.hero-art:after { content: '龍門'; position: absolute; right: 24px; bottom: 8px; font-family: var(--serif); font-size: 100px; color: rgba(236,214,167,.12); writing-mode: vertical-rl; letter-spacing: .2em; }
.arch { position: absolute; left: 16%; top: 16%; width: 68%; height: 68%; border: 2px solid var(--gold); border-bottom: 0; border-radius: 180px 180px 0 0; }
.arch span { position: absolute; left: 50%; top: 31%; transform: translateX(-50%); font-family: var(--serif); font-size: 72px; color: var(--gold-pale); }
.orbit { position: absolute; border: 1px solid rgba(199,154,85,.5); border-radius: 50%; }
.orbit.o1 { width: 280px; height: 100px; left: 8%; top: 45%; transform: rotate(-22deg); }
.orbit.o2 { width: 220px; height: 80px; right: 1%; top: 34%; transform: rotate(30deg); }
.section { padding: 76px 0; }
.section.alt { background: var(--paper-2); }
.section-head { display: flex; justify-content: space-between; align-items: end; gap: 20px; margin-bottom: 28px; }
.section h2 { font-family: var(--serif); font-size: 36px; margin: 8px 0; }
.section-intro { color: var(--muted); max-width: 580px; }
.text-link { color: var(--red); font-weight: 700; font-size: 14px; }
.topics { display: grid; grid-template-columns: repeat(6, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.topic { padding: 25px 18px; border-right: 1px solid var(--line); min-height: 150px; }
.topic:last-child { border: 0; }
.topic b { display: block; font-family: var(--serif); font-size: 22px; margin-bottom: 10px; }
.topic span { font-size: 13px; color: var(--muted); }
.feature-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 24px; }
.feature-main { min-height: 380px; background: var(--ink); color: var(--white); padding: 38px; position: relative; overflow: hidden; }
.feature-main:after { content: '01'; position: absolute; right: 22px; top: 14px; font: 100px var(--serif); color: rgba(236,214,167,.15); }
.feature-main .tag { color: var(--gold-pale); }
.feature-main h3 { font: 36px/1.3 var(--serif); max-width: 600px; margin: 70px 0 16px; }
.feature-main p { color: #d6cfc5; max-width: 560px; }
.stack { display: grid; gap: 16px; }
.mini-card { background: var(--white); padding: 24px; border-left: 3px solid var(--gold); box-shadow: 0 8px 24px rgba(60,40,20,.06); }
.mini-card h3 { font: 22px/1.4 var(--serif); margin: 8px 0; }
.mini-card p { font-size: 14px; color: var(--muted); margin: 0; }
.tag { font-size: 11px; letter-spacing: .14em; color: var(--red); font-weight: 800; text-transform: uppercase; }
.article-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.article-card { background: var(--white); padding: 24px; border-top: 2px solid var(--line); transition: .25s; }
.article-card:hover { transform: translateY(-4px); border-color: var(--red); box-shadow: var(--shadow); }
.article-card h3 { font: 23px/1.4 var(--serif); margin: 11px 0; }
.article-card p { font-size: 14px; color: var(--muted); margin: 0 0 18px; }
.meta { font-size: 12px; color: #8d847b; display: flex; gap: 13px; flex-wrap: wrap; }
.data-band { background: var(--ink); color: var(--white); padding: 60px 0; }
.data-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: center; }
.data-band h2 { font: 36px var(--serif); margin: 8px 0 16px; color: var(--gold-pale); }
.data-band p { color: #c9c1b8; }
.bars { display: grid; gap: 14px; }
.bar { display: grid; grid-template-columns: 125px 1fr 42px; align-items: center; gap: 10px; font-size: 13px; color: #d4cdc4; }
.bar i { height: 8px; background: var(--gold); display: block; }
.faq { max-width: 820px; }
.faq-item { border-top: 1px solid var(--line); }
.faq-q { width: 100%; display: flex; justify-content: space-between; align-items: center; background: none; border: 0; padding: 18px 0; text-align: left; font-weight: 700; cursor: pointer; color: var(--ink); }
.faq-q span { font-size: 22px; color: var(--red); }
.faq-a { display: none; color: var(--muted); padding: 0 38px 18px 0; }
.faq-item.open .faq-a { display: block; }
.site-footer { background: #171717; color: #d7d0c7; padding: 58px 0 24px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr repeat(3, 1fr); gap: 35px; }
.site-footer h3 { font: 20px var(--serif); color: var(--gold-pale); margin: 0 0 14px; }
.site-footer p, .site-footer a { font-size: 13px; color: #aaa29a; }
.site-footer a { display: block; margin: 6px 0; }
.copyright { border-top: 1px solid #3c3935; margin-top: 40px; padding-top: 18px; font-size: 12px; color: #817a72; display: flex; justify-content: space-between; gap: 20px; }
.breadcrumb { padding: 22px 0; font-size: 13px; color: var(--muted); }
.breadcrumb a { color: var(--red); }
.page-hero { padding: 48px 0 42px; background: #eee4d6; border-bottom: 1px solid var(--line); }
.page-hero h1 { font: 48px var(--serif); margin: 10px 0; }
.page-hero p { max-width: 700px; color: var(--muted); }
.category-layout { display: grid; grid-template-columns: 1fr 300px; gap: 42px; }
.list-item { display: grid; grid-template-columns: 150px 1fr; gap: 22px; padding: 22px 0; border-bottom: 1px solid var(--line); }
.list-thumb { background: var(--ink); aspect-ratio: 1.4; display: grid; place-items: center; color: var(--gold); font: 28px var(--serif); }
.list-item h2 { font: 25px/1.35 var(--serif); margin: 7px 0; }
.list-item p { color: var(--muted); font-size: 14px; margin: 0 0 12px; }
.side-box { background: var(--white); padding: 24px; border-top: 3px solid var(--red); height: max-content; }
.side-box h3 { font: 22px var(--serif); margin: 0 0 15px; }
.side-box a { display: block; padding: 8px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
.article-layout { display: grid; grid-template-columns: 1fr 250px; gap: 45px; }
.article-head { padding: 18px 0 25px; border-bottom: 1px solid var(--line); }
.article-head h1 { font: clamp(34px, 5vw, 56px)/1.25 var(--serif); margin: 10px 0; }
.article-lead { font-size: 18px; color: var(--muted); }
.article-body { font-family: var(--serif); font-size: 18px; line-height: 2; }
.article-body h2 { font: 32px var(--serif); margin: 38px 0 12px; }
.article-body h3 { font: 24px var(--serif); margin: 28px 0 8px; }
.article-body ul { padding-left: 24px; }
.article-body blockquote { margin: 24px 0; padding: 16px 22px; border-left: 4px solid var(--gold); background: #efe5d7; }
.article-art { height: 260px; background: var(--ink); margin: 28px 0; display: grid; place-items: center; color: var(--gold-pale); font: 68px var(--serif); }
.related { border-top: 1px solid var(--line); margin-top: 35px; padding-top: 25px; }
.pager { display: flex; justify-content: space-between; gap: 20px; border-top: 1px solid var(--line); margin-top: 30px; padding-top: 20px; font-size: 14px; color: var(--red); }
.not-found { padding: 100px 0; text-align: center; }
.not-found strong { display: block; font: 120px var(--serif); color: var(--red); }
.reading-progress { position: fixed; top: 0; left: 0; height: 3px; width: 0; background: var(--red); z-index: 20; }
@media (max-width: 900px) {
  .nav { display: none; position: absolute; left: 0; right: 0; top: 76px; background: var(--paper); padding: 15px 24px; border-bottom: 1px solid var(--line); flex-direction: column; align-items: flex-start; }
  .nav.open { display: flex; }
  .nav-toggle { display: block; }
  .hero-grid, .feature-grid, .data-grid, .category-layout, .article-layout { grid-template-columns: 1fr; }
  .hero { padding: 56px 0; }
  .hero-art { min-height: 300px; }
  .topics { grid-template-columns: repeat(3, 1fr); }
  .topic:nth-child(3) { border-right: 0; }
  .topic:nth-child(n+4) { border-top: 1px solid var(--line); }
  .article-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .side-box { order: -1; }
}
@media (max-width: 560px) {
  .wrap { width: min(100% - 32px, 1180px); }
  .nav-wrap { height: 66px; }
  .nav { top: 66px; }
  .hero h1 { font-size: 44px; }
  .hero p { font-size: 16px; }
  .topics { grid-template-columns: 1fr 1fr; }
  .topic { min-height: 125px; }
  .topic:nth-child(2n) { border-right: 0; }
  .topic:nth-child(n+3) { border-top: 1px solid var(--line); }
  .article-grid { grid-template-columns: 1fr; }
  .section { padding: 54px 0; }
  .section h2 { font-size: 30px; }
  .feature-main { padding: 26px; min-height: 340px; }
  .feature-main h3 { font-size: 29px; margin-top: 55px; }
  .list-item { grid-template-columns: 1fr; }
  .list-thumb { aspect-ratio: 2.3; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
  .footer-grid > div:first-child { grid-column: 1 / -1; }
  .copyright { flex-direction: column; }
  .page-hero h1 { font-size: 40px; }
  .article-body { font-size: 17px; }
  .article-art { height: 190px; font-size: 52px; }
}

.hero-art img { position:absolute; inset:0; width:100%; height:100%; object-fit:cover; opacity:.35; }


.article-art { position:relative; overflow:hidden; } .article-art img { position:absolute; inset:0; width:100%; height:100%; object-fit:cover; opacity:.48; } .article-art { isolation:isolate; } .article-art::after { content:''; position:absolute; inset:0; background:rgba(23,23,23,.32); z-index:-0; }

/* Official tech refresh */
:root {
  --ink: #071521;
  --ink-2: #102638;
  --paper: #f4f7fa;
  --paper-2: #ffffff;
  --red: #0b8fa8;
  --red-2: #19bfd2;
  --gold: #ff9a5a;
  --gold-pale: #ffd1ad;
  --muted: #637384;
  --line: #d9e3ea;
  --white: #f8fcff;
  --shadow: 0 18px 50px rgba(9, 35, 53, .12);
}
body { background: var(--paper); color: #102536; }
.site-header { background: rgba(244,247,250,.9); border-bottom-color: rgba(11,143,168,.18); }
.nav-wrap { height: 82px; }
.brand { letter-spacing: .02em; }
.brand-mark { border-color: var(--red-2); background: var(--ink); color: #baf5ff; box-shadow: 0 0 0 5px rgba(25,191,210,.08); }
.brand-mark:after { border-color: var(--gold); }
.brand small { color: #6c7e8e; letter-spacing: .2em; }
.nav { gap: 24px; font-size: 13px; font-weight: 700; }
.nav a { color: #476174; }
.nav a:hover, .nav a.active { color: var(--red); border-bottom-color: var(--red-2); }
.hero { padding: 92px 0 78px; background: linear-gradient(120deg, #edf5f8 0%, #f8fafc 52%, #e3f4f5 100%); position: relative; overflow: hidden; }
.hero:after { content: ''; position: absolute; width: 520px; height: 520px; border: 1px solid rgba(11,143,168,.12); border-radius: 50%; right: -210px; top: -220px; box-shadow: 0 0 0 32px rgba(11,143,168,.035), 0 0 0 64px rgba(11,143,168,.025); }
.hero-grid { gap: 72px; position: relative; z-index: 1; }
.eyebrow { color: var(--red); letter-spacing: .24em; }
.hero h1 { font-family: var(--sans); font-weight: 800; letter-spacing: -.04em; color: var(--ink); }
.hero h1 em { color: var(--red); }
.hero h1 em { display: inline-block; }
.hero p { color: #526a7b; font-size: 17px; }
.hero-actions { margin-top: 34px; }
.btn { border-radius: 4px; border-color: var(--red); background: var(--red); box-shadow: 0 9px 20px rgba(11,143,168,.18); }
.btn:hover { background: #08788e; transform: translateY(-2px); }
.btn.secondary { color: var(--ink); border-color: var(--line); background: rgba(255,255,255,.65); box-shadow: none; }
.hero-art { min-height: 410px; border: 1px solid rgba(25,191,210,.3); background: var(--ink); box-shadow: 0 24px 70px rgba(7,21,33,.2); }
.hero-art:before { inset: 18px; border-color: rgba(108,235,250,.45); }
.hero-art:after { color: rgba(169,246,255,.12); }
.arch { border-color: var(--red-2); }
.arch span { color: #baf5ff; }
.orbit { border-color: rgba(255,154,90,.7); }
.section { padding: 84px 0; }
.section.alt { background: #ffffff; }
.section h2 { font-family: var(--sans); font-weight: 800; letter-spacing: -.03em; color: var(--ink); }
.section-intro { color: #687b8b; }
.topics { border-color: var(--line); background: rgba(255,255,255,.55); }
.topic { border-color: var(--line); transition: background .2s, transform .2s; }
.topic:hover { background: #e8f7f9; transform: translateY(-3px); }
.topic b { font-family: var(--sans); font-size: 19px; color: var(--ink); }
.topic span { color: #6c7f8e; }
.feature-main { background: linear-gradient(135deg, #071521, #103148); border: 1px solid rgba(25,191,210,.28); box-shadow: 0 18px 46px rgba(7,21,33,.16); }
.feature-main { background-image: linear-gradient(120deg, rgba(7,21,33,.97) 8%, rgba(7,21,33,.64) 74%), url('/assets/images/article-visual.svg'); background-size: cover; background-position: center; }
.feature-main .tag { color: #a7f3fb; }
.feature-main h3, .mini-card h3, .article-card h3, .list-item h2, .side-box h3 { font-family: var(--sans); font-weight: 800; }
.feature-main h3 { letter-spacing: -.02em; }
.feature-main p { color: #b9cbd5; }
.mini-card { border: 1px solid var(--line); border-left: 3px solid var(--gold); box-shadow: 0 10px 28px rgba(12,41,58,.07); }
.tag { color: var(--red); letter-spacing: .16em; }
.article-card { border: 1px solid var(--line); border-top: 3px solid var(--red-2); padding: 0 24px 24px; overflow: hidden; }
.article-card:before { content: ''; display: block; height: 94px; margin: 0 -24px 18px; background: linear-gradient(120deg, rgba(11,143,168,.9), rgba(7,21,33,.9)), url('/assets/images/article-visual.svg') center/cover; }
.article-card:hover { border-color: var(--red-2); box-shadow: 0 18px 44px rgba(11,143,168,.14); }
.article-card h3 { color: var(--ink); }
.article-card p { color: #687b8b; }
.data-band { background: linear-gradient(120deg, #071521, #0e3044); border-top: 1px solid rgba(25,191,210,.3); border-bottom: 1px solid rgba(25,191,210,.3); }
.data-band h2 { font-family: var(--sans); font-weight: 800; color: #d9fbff; }
.data-band p { color: #b4c8d3; }
.bar i { background: linear-gradient(90deg, var(--red-2), var(--gold)); border-radius: 10px; }
.faq-item { border-color: var(--line); }
.faq-q { color: var(--ink); }
.faq-q span { color: var(--red); }
.site-footer { background: #06131e; color: #d3e4ed; padding: 0 0 25px; border-top: 3px solid var(--red-2); }
.site-footer { position: relative; overflow: hidden; }
.site-footer:before { content: ''; position: absolute; width: 520px; height: 520px; border: 1px solid rgba(103,228,239,.12); border-radius: 50%; right: -180px; top: -280px; box-shadow: 0 0 0 28px rgba(103,228,239,.035), 0 0 0 56px rgba(103,228,239,.025); pointer-events: none; }
.footer-grid { padding: 52px 0 42px; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 48px; }
.site-footer h3 { font-family: var(--sans); font-weight: 800; color: #e1fbff; font-size: 16px; letter-spacing: .01em; }
.site-footer .footer-grid:before { content: 'SAFEW / CONTENT SYSTEM'; display: block; grid-column: 1 / -1; color: #67e4ef; font-size: 10px; letter-spacing: .24em; font-weight: 800; padding-bottom: 2px; }
.footer-kicker { color: #67e4ef; font-size: 10px; letter-spacing: .22em; font-weight: 800; margin-bottom: 14px; }
.footer-status { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 22px; font-size: 11px; color: #86a0af; }
.footer-status span { display: inline-flex; gap: 7px; align-items: center; }
.footer-status i { width: 7px; height: 7px; display: inline-block; border-radius: 50%; background: #55e59b; box-shadow: 0 0 0 4px rgba(85,229,155,.12); }
.footer-note { max-width: 230px; }
.footer-contact { margin-top: 16px !important; color: #67e4ef !important; font-weight: 800; }
.site-footer p, .site-footer a { color: #8fa9b7; }
.site-footer a:hover { color: #67e4ef; }
.copyright { border-top-color: rgba(143,169,183,.22); margin-top: 0; padding-top: 20px; color: #718a99; }
.page-hero { background: linear-gradient(115deg, #e5f3f5, #f8fafc); border-bottom-color: var(--line); }
.page-hero h1 { font-family: var(--sans); font-weight: 800; color: var(--ink); }
.list-item { border-color: var(--line); }
.list-thumb { background: linear-gradient(135deg, #071521, #14536b); border-radius: 4px; color: #a7f3fb; box-shadow: inset 0 0 0 1px rgba(103,228,239,.24); }
.list-thumb { background-image: linear-gradient(135deg, rgba(7,21,33,.94), rgba(20,83,107,.76)), url('/assets/images/article-visual.svg'); background-size: cover; position: relative; overflow: hidden; }
.list-thumb:after { content: 'KNOWLEDGE'; position: absolute; left: 12px; bottom: 10px; font: 9px var(--sans); letter-spacing: .18em; color: rgba(231,251,255,.7); }
.side-box { border: 1px solid var(--line); border-top: 3px solid var(--red-2); box-shadow: 0 12px 30px rgba(12,41,58,.06); }
.side-box a { border-color: var(--line); }
.article-head { border-color: var(--line); }
.article-body { color: #203b4d; }
.article-body h2, .article-body h3 { font-family: var(--sans); font-weight: 800; color: var(--ink); }
.article-body blockquote { background: #e8f7f9; border-left-color: var(--red-2); }
.article-art { border: 1px solid rgba(25,191,210,.3); box-shadow: 0 16px 36px rgba(7,21,33,.14); }
.pager { border-color: var(--line); color: var(--red); }
.reading-progress { background: linear-gradient(90deg, var(--red), var(--gold)); }
@media (max-width: 900px) { .nav { top: 82px; background: rgba(244,247,250,.98); } }
@media (max-width: 560px) { .nav { top: 66px; } .hero { padding: 62px 0 54px; } .footer-grid { grid-template-columns: 1fr 1fr; } }