/* 机场f · 航站楼风格 */
:root {
  --paper: #f3eee3;
  --paper-2: #e9e2d2;
  --card: #fffdf7;
  --ink: #1c1a16;
  --ink-2: #5d574b;
  --ink-3: #8a8373;
  --line: #d8cfbb;
  --accent: #e8501c;
  --accent-ink: #fff;
  --accent-soft: #fbe3d7;
  --board: #17150f;
  --board-2: #24211a;
  --board-text: #f2efe6;
  --flap: #ffc629;
  --ok: #2c8150;
  --ok-soft: #dcefe2;
  --watch: #a86f00;
  --watch-soft: #f8ebc8;
  --off: #ad3527;
  --off-soft: #f6dcd8;
  --serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STSong", "SimSun", serif;
  --sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --mono: "SF Mono", "JetBrains Mono", ui-monospace, Menlo, Consolas, monospace;
  --radius: 14px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #14130f; --paper-2: #1c1a15; --card: #1e1c17; --ink: #eee8da; --ink-2: #b2aa98; --ink-3: #847d6e;
    --line: #36322a; --accent: #ff6a35; --accent-soft: #3a2116; --board: #0c0b08; --board-2: #1a1813;
    --ok: #5cc185; --ok-soft: #173023; --watch: #e0a83a; --watch-soft: #33280f; --off: #ee7466; --off-soft: #3a1914;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #14130f; --paper-2: #1c1a15; --card: #1e1c17; --ink: #eee8da; --ink-2: #b2aa98; --ink-3: #847d6e;
  --line: #36322a; --accent: #ff6a35; --accent-soft: #3a2116; --board: #0c0b08; --board-2: #1a1813;
  --ok: #5cc185; --ok-soft: #173023; --watch: #e0a83a; --watch-soft: #33280f; --off: #ee7466; --off-soft: #3a1914;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: 80px; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 16px/1.75 var(--sans); overflow-x: hidden; }
a { color: inherit; text-decoration-color: color-mix(in srgb, var(--accent) 60%, transparent); text-underline-offset: 3px; }
a:hover { color: var(--accent); }
img { max-width: 100%; height: auto; }
.mono { font-family: var(--mono); font-variant-numeric: tabular-nums; letter-spacing: .02em; }
.wrap { width: 100%; max-width: 1160px; margin: 0 auto; padding: 0 16px; }
.narrow { max-width: 780px; }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 16px; top: 8px; background: var(--card); padding: 8px 12px; z-index: 99; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.preview-bar { background: var(--flap); color: #1c1a16; font-size: 13px; text-align: center; padding: 6px 16px; }

/* 顶栏 */
.site-head { position: sticky; top: 0; z-index: 20; background: color-mix(in srgb, var(--paper) 88%, transparent); backdrop-filter: blur(10px); border-bottom: 1px dashed var(--line); }
.head-row { display: flex; align-items: center; gap: 16px; height: 64px; }
.logo { display: flex; align-items: baseline; gap: 8px; text-decoration: none; font-family: var(--serif); font-weight: 900; font-size: 20px; white-space: nowrap; margin: 0; }
.logo small { font-family: var(--sans); font-weight: 400; font-size: 12px; color: var(--ink-3); }
.logo-mark { display: inline-grid; place-items: center; width: 30px; height: 30px; border-radius: 50%; background: var(--accent); color: var(--accent-ink); font-size: 15px; transform: rotate(-45deg) translateY(4px); align-self: center; }
.site-nav { display: flex; gap: 2px; margin-left: auto; }
.icon-btn { border: 1px solid var(--line); background: var(--card); color: var(--ink); width: 36px; height: 36px; border-radius: 50%; cursor: pointer; font-size: 16px; flex: none; }
.menu-btn { display: none; margin-left: auto; }

/* 页面头 */
.page-head { padding-top: 44px; padding-bottom: 28px; }
.page-head.has-hero, .review-head { display: grid; grid-template-columns: 1fr 380px; gap: 48px; align-items: center; }
.crumbs { font-size: 13px; color: var(--ink-3); margin-bottom: 14px; }
.crumbs a { color: var(--ink-2); text-decoration: none; }
.crumbs .sep { margin: 0 6px; }
.eyebrow { color: var(--accent); font-size: 13px; margin: 0 0 10px; text-transform: uppercase; }
h1, h2, h3 { font-family: var(--serif); line-height: 1.3; letter-spacing: -.01em; }
h1 { font-size: clamp(32px, 5vw, 54px); font-weight: 900; margin: 0 0 16px; }
.lead { font-size: 18px; color: var(--ink-2); max-width: 46em; margin: 0 0 16px; }
.byline { font-size: 13px; color: var(--ink-3); margin: 0; }
.byline a { color: var(--ink-2); }

/* 登机牌 */
.pass { display: block; text-decoration: none; background: var(--card); border-radius: 18px; padding: 20px 22px 18px; position: relative; box-shadow: 0 1px 0 var(--line), 0 18px 40px -24px rgba(40, 30, 10, .35); border: 1px solid var(--line); transform: rotate(1.2deg); transition: transform .25s; }
.pass:hover { transform: rotate(0); color: var(--ink); }
.pass-top { display: flex; justify-content: space-between; font-size: 11px; color: var(--ink-3); padding-bottom: 12px; border-bottom: 1px dashed var(--line); }
.pass-route { display: flex; align-items: center; justify-content: space-between; padding: 14px 0; }
.pass-route div { display: flex; flex-direction: column; }
.pass-route small, .pass-grid small, .pass-name small { font-size: 11px; color: var(--ink-3); font-family: var(--sans); }
.pass-route b { font-size: 34px; line-height: 1.1; }
.pass-route span { font-size: 12px; color: var(--ink-2); }
.pass-plane { color: var(--accent); font-size: 22px; flex: 1; text-align: center; background: linear-gradient(90deg, transparent, var(--line) 20%, var(--line) 80%, transparent) center / 100% 1px no-repeat; }
.pass-name { padding: 10px 0; border-top: 1px dashed var(--line); }
.pass-name strong { display: block; font-family: var(--serif); font-size: 24px; }
.pass-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; padding: 10px 0 14px; font-size: 15px; }
.pass-grid div { display: flex; flex-direction: column; }
.pass-code { height: 38px; border-radius: 4px; background: repeating-linear-gradient(90deg, var(--ink) 0 2px, transparent 2px 5px, var(--ink) 5px 6px, transparent 6px 9px, var(--ink) 9px 12px, transparent 12px 14px); opacity: .85; }
.pass::before, .pass::after { content: ""; position: absolute; width: 22px; height: 22px; border-radius: 50%; background: var(--paper); top: 43px; border: 1px solid var(--line); }
.pass::before { left: -12px; clip-path: inset(0 0 0 50%); }
.pass::after { right: -12px; clip-path: inset(0 50% 0 0); }

/* 正文区 */
.page-body { padding-bottom: 64px; }
.page-body > h2, .prose h2 { font-size: clamp(24px, 3vw, 32px); margin: 56px 0 14px; padding-top: 18px; border-top: 2px solid var(--ink); }
.page-body > p, .page-body > ul, .page-body > ol { max-width: 46em; }
.prose h3 { font-size: 21px; margin: 32px 0 8px; }
.prose p, .prose li { color: var(--ink); }
.prose ul, .prose ol { padding-left: 1.3em; }
.prose li + li { margin-top: 4px; }
.prose code, code { font-family: var(--mono); font-size: .88em; background: var(--paper-2); padding: 2px 6px; border-radius: 5px; }
.prose pre { background: var(--board); color: var(--board-text); padding: 14px 16px; border-radius: 10px; overflow-x: auto; font-size: 14px; }
.prose pre code { background: none; padding: 0; color: inherit; }
.prose blockquote, .callout { margin: 20px 0; padding: 14px 18px; background: var(--card); border-left: 4px solid var(--accent); border-radius: 0 10px 10px 0; }
.callout b:first-child { color: var(--accent); }
.answer { margin: 8px 0 24px; padding: 18px 20px; border-radius: var(--radius); background: var(--card); border: 1px solid var(--line); max-width: 52em; }
.answer p { margin: 0; }
.answer p + p, .answer ul { margin-top: 8px; }
.note { font-size: 13px; color: var(--ink-3); }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; padding: 10px 18px; border-radius: 999px; background: var(--ink); color: var(--paper); text-decoration: none; font-weight: 600; font-size: 15px; border: 1px solid var(--ink); }
.btn:hover { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line); }

/* 目录 */
.toc b { white-space: nowrap; font-size: 13px; color: var(--ink-3); font-weight: 600; }
.toc ol { margin: 6px 0 0; padding: 0; list-style: none; counter-reset: t; }
.toc li { counter-increment: t; }
.toc a { text-decoration: none; color: var(--ink-2); font-size: 14px; display: block; padding: 3px 0; }
.toc a::before { content: counter(t, decimal-leading-zero) "  "; font-family: var(--mono); color: var(--ink-3); font-size: 12px; }
.toc a:hover { color: var(--accent); }
.toc-bar { display: flex; gap: 12px; align-items: baseline; padding: 12px 0; border-top: 1px dashed var(--line); border-bottom: 1px dashed var(--line); margin-bottom: 8px; }
.toc-bar ol { display: flex; flex-wrap: wrap; gap: 4px 18px; margin: 0; }
.toc-inline { display: none; background: var(--card); padding: 14px 18px; border-radius: var(--radius); border: 1px solid var(--line); }

/* 出发显示屏 */
.board { border: 1px solid #2c281f; background: var(--board); color: var(--board-text); border-radius: 16px; overflow: hidden; margin: 18px 0; box-shadow: 0 20px 40px -28px rgba(0, 0, 0, .6); }
.board-top { display: flex; justify-content: space-between; gap: 12px; padding: 12px 18px; font-size: 12px; color: var(--flap); background: var(--board-2); flex-wrap: wrap; }
.board-scroll, .table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.board table { width: 100%; border-collapse: collapse; min-width: 720px; }
.board th { text-align: left; font-weight: 500; font-size: 12px; color: #9a937f; padding: 10px 14px; border-bottom: 1px solid #2f2b22; }
.board td { padding: 12px 14px; border-bottom: 1px solid #25221b; font-size: 15px; }
.board tr:last-child td { border-bottom: 0; }
.board td a { color: var(--board-text); text-decoration: none; font-weight: 600; }
.board td a:hover { color: var(--flap); }
.board .flight { color: var(--flap); }
.board tbody tr:hover { background: #1f1c15; }

/* 状态 & 标签 */
.st { display: inline-block; font-size: 12px; font-weight: 600; padding: 1px 9px; border-radius: 999px; white-space: nowrap; }
.st-ok { color: var(--ok); background: var(--ok-soft); }
.st-watch { color: var(--watch); background: var(--watch-soft); }
.st-off { color: var(--off); background: var(--off-soft); }
.board .st-ok { color: #7ee2a2; background: #1d3527; }
.board .st-watch { color: var(--flap); background: #3a3112; }
.board .st-off { color: #ff8f80; background: #3c1a15; }
.tag { font-size: 12px; color: var(--ink-2); border: 1px solid var(--line); padding: 0 8px; border-radius: 999px; }

/* 场景速选 */
.picks { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 12px; margin: 18px 0; }
.pick { display: flex; flex-direction: column; gap: 6px; padding: 16px; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); text-decoration: none; transition: border-color .2s, transform .2s; }
.pick:hover { border-color: var(--accent); transform: translateY(-2px); color: var(--ink); }
.pick-scene { font-size: 12px; font-weight: 700; color: var(--accent); }
.pick strong { font-family: var(--serif); font-size: 19px; }
.pick-why { font-size: 14px; color: var(--ink-2); line-height: 1.6; flex: 1; }
.pick-meta { font-size: 13px; color: var(--ink-3); }

/* 机票卡片 */
.tickets { display: grid; gap: 18px; margin: 18px 0; }
.ticket { display: grid; grid-template-columns: 1fr 250px; background: var(--card); border: 1px solid var(--line); border-radius: 18px; position: relative; }
.ticket-main { padding: 22px 24px; min-width: 0; }
.ticket-head { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; }
.rank { font-size: 13px; font-weight: 700; color: var(--accent); margin-right: 4px; }
.ticket h3 { font-size: 24px; margin: 10px 0 6px; }
.ticket h3 a { text-decoration: none; }
.summary { margin: 0 0 14px; color: var(--ink-2); }
.specs { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 10px; margin: 0 0 14px; }
.specs div { background: var(--paper); border-radius: 10px; padding: 8px 12px; }
.specs dt { font-size: 12px; color: var(--ink-3); }
.specs dd { margin: 0; font-size: 14px; font-weight: 600; }
.pc { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.pc ul { list-style: none; padding: 0; margin: 0; font-size: 14px; }
.pc li { padding-left: 22px; position: relative; margin: 4px 0; }
.pros li::before { content: "＋"; position: absolute; left: 0; color: var(--ok); font-weight: 700; }
.cons li::before { content: "－"; position: absolute; left: 0; color: var(--off); font-weight: 700; }
.fit { font-size: 14px; margin: 12px 0 0; color: var(--ink-2); }
.fit b { color: var(--ink); }
.ticket-stub { padding: 22px 20px; border-left: 2px dashed var(--line); display: flex; flex-direction: column; gap: 12px; }
.ticket::before, .ticket::after { content: ""; position: absolute; right: 239px; width: 22px; height: 22px; border-radius: 50%; background: var(--paper); border: 1px solid var(--line); }
.ticket::before { top: -12px; clip-path: inset(50% 0 0 0); }
.ticket::after { bottom: -12px; clip-path: inset(0 0 50% 0); }
.score { display: flex; align-items: baseline; gap: 8px; }
.score span { font-size: 40px; font-weight: 700; line-height: 1; }
.score small, .price small { font-size: 12px; color: var(--ink-3); }
.score.big span { font-size: 56px; }
.price span { font-size: 22px; font-weight: 700; color: var(--accent); }
.bars { list-style: none; padding: 0; margin: 0; display: grid; gap: 6px; }
.bars li { display: grid; grid-template-columns: 48px 1fr 30px; align-items: center; gap: 8px; font-size: 12px; color: var(--ink-2); margin: 0 !important; padding: 0 !important; }
.bars li::before { display: none; }
.bars i { height: 6px; border-radius: 3px; background: var(--paper-2); position: relative; overflow: hidden; }
.bars i::after { content: ""; position: absolute; inset: 0; width: var(--v); background: var(--ink); border-radius: 3px; }
.bars b { text-align: right; color: var(--ink); }
.coupon { font-size: 13px; color: var(--ink-2); }
.ticket-stub .btn { width: 100%; }

/* 完整表 */
.filter { display: flex; flex-wrap: wrap; gap: 8px; margin: 14px 0; }
.chip { font: inherit; font-size: 14px; padding: 5px 14px; border-radius: 999px; border: 1px solid var(--line); background: var(--card); color: var(--ink-2); cursor: pointer; }
.chip.on { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.table-wrap { border: 1px solid var(--line); border-radius: var(--radius); background: var(--card); }
.table-wrap table { width: 100%; border-collapse: collapse; font-size: 14px; }
.sortable { min-width: 960px; }
.table-wrap th, .table-wrap td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--line); white-space: nowrap; }
.table-wrap thead th { background: var(--paper-2); font-weight: 600; font-size: 13px; position: sticky; top: 0; }
.table-wrap tr:last-child td, .table-wrap tr:last-child th { border-bottom: 0; }
.table-wrap td a { font-weight: 600; text-decoration: none; }
th[data-sort] { cursor: pointer; user-select: none; }
th[data-sort]::after { content: " ↕"; color: var(--ink-3); font-size: 11px; }
th[data-dir="asc"]::after { content: " ↑"; color: var(--accent); }
th[data-dir="desc"]::after { content: " ↓"; color: var(--accent); }
.kv th { width: 9em; color: var(--ink-2); font-weight: 500; background: var(--paper-2); }
.kv td { white-space: normal; }
.prose table:not(.kv):not(.sortable) { width: 100%; border-collapse: collapse; font-size: 14px; }
.prose .table-wrap { margin: 16px 0; }

/* 实测指标 */
.metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.metrics div { background: var(--board); color: var(--board-text); border-radius: 12px; padding: 14px 16px; }
.metrics small { display: block; color: #9a937f; font-size: 12px; }
.metrics b { color: var(--flap); font-size: 24px; }
.verdict { background: var(--card); border: 1px solid var(--line); border-radius: 18px; padding: 22px; display: flex; flex-direction: column; gap: 14px; }

/* 步骤与对比 */
.steps { counter-reset: s; list-style: none; padding: 0 !important; display: grid; gap: 12px; max-width: 52em; }
.steps > li { counter-increment: s; position: relative; padding: 14px 16px 14px 60px; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); margin: 0 !important; }
.steps > li::before { content: counter(s, decimal-leading-zero); position: absolute; left: 16px; top: 14px; font-family: var(--mono); font-weight: 700; color: var(--accent); font-size: 18px; }
.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 14px; margin: 18px 0; }
.box { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 20px; }
.box h3 { margin-top: 0 !important; font-size: 19px; }
.box p:last-child, .box ul:last-child { margin-bottom: 0; }

/* 教程列表 */
.guides { list-style: none; padding: 0 !important; margin: 18px 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 12px; }
.guides li { margin: 0 !important; }
.guides a { display: flex; flex-direction: column; gap: 4px; height: 100%; padding: 16px 18px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--card); text-decoration: none; }
.guides a:hover { border-color: var(--accent); color: var(--ink); }
.g-cat { font-size: 12px; font-weight: 700; color: var(--accent); }
.guides strong { font-family: var(--serif); font-size: 18px; line-height: 1.4; }
.g-desc { font-size: 14px; color: var(--ink-2); line-height: 1.6; flex: 1; }
.g-date { font-size: 12px; color: var(--ink-3); }
.guides.compact { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }

/* 更新记录 */
.log { list-style: none; padding: 0 !important; border-left: 2px solid var(--line); margin: 18px 0 18px 6px; max-width: 46em; }
.log li { display: grid; grid-template-columns: 110px 1fr; gap: 12px; padding: 0 0 18px 18px; position: relative; margin: 0 !important; }
.log li::before { content: ""; position: absolute; left: -7px; top: 8px; width: 12px; height: 12px; border-radius: 50%; background: var(--accent); }
.log time { color: var(--ink-3); font-size: 13px; padding-top: 2px; }
.log p { margin: 2px 0 0; color: var(--ink-2); font-size: 14px; }

/* FAQ */
.faq details { border-bottom: 1px solid var(--line); padding: 4px 0; max-width: 52em; }
.faq summary { cursor: pointer; font-weight: 700; padding: 12px 28px 12px 0; list-style: none; position: relative; font-size: 17px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 4px; top: 10px; font-family: var(--mono); color: var(--accent); font-size: 20px; }
.faq details[open] summary::after { content: "−"; }
.faq details div { padding: 0 0 12px; color: var(--ink-2); }
.faq details p { margin: 0; }

/* 文章布局 */
.article-grid { display: grid; grid-template-columns: 220px minmax(0, 760px); gap: 48px; padding-bottom: 64px; }
.toc-sticky { position: sticky; top: 90px; }
.prose > h2:first-child, .prose > .toc-inline + h2 { margin-top: 12px; }
.related { margin-top: 48px; }
.notfound { padding: 80px 16px; }

/* 页脚 */
.site-foot { border-top: 2px solid var(--ink); padding: 40px 0 24px; background: var(--paper-2); font-size: 14px; color: var(--ink-2); }
.foot-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 28px; }
.foot-grid b { display: block; color: var(--ink); margin-bottom: 6px; }
.foot-grid a { display: block; text-decoration: none; padding: 2px 0; }
.foot-logo { margin-bottom: 8px; }
.foot-note { margin-top: 28px; padding-top: 16px; border-top: 1px dashed var(--line); font-size: 12px; color: var(--ink-3); }

@media (max-width: 1000px) {
  .article-grid { grid-template-columns: minmax(0, 1fr); }
  .article-side { display: none; }
  .toc-inline { display: block; }
  .page-head.has-hero, .review-head { grid-template-columns: 1fr; gap: 28px; }
  .pass { max-width: 420px; transform: none; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 860px) {
  .menu-btn { display: inline-block; }
  .logo small { display: none; }
  .head-row { position: relative; }
}
@media (max-width: 700px) {
  body { font-size: 15.5px; }
  .page-head { padding-top: 28px; }
  .lead { font-size: 16px; }
  .ticket { grid-template-columns: 1fr; }
  .ticket-stub { border-left: 0; border-top: 2px dashed var(--line); }
  .ticket::before, .ticket::after { display: none; }
  .ticket-main { padding: 18px; }
  .pc { grid-template-columns: 1fr; gap: 4px; }
  .metrics { grid-template-columns: 1fr; }
  .guides { grid-template-columns: 1fr; }
  .toc-bar { display: block; }
  .toc-bar ol { display: block; }
  .log li { grid-template-columns: 1fr; gap: 0; }
  .foot-grid { grid-template-columns: 1fr; }
  .pass-route b { font-size: 28px; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }
.score.pending span { font-size: 30px; color: var(--ink-3); }
.score.pending small { line-height: 1.5; }
.table-wrap .cells-wrap td, .table-wrap .cells-wrap th { white-space: normal; }

/* 分组下拉导航 */
.nav-item { position: relative; display: flex; align-items: center; }
.nav-top { text-decoration: none; padding: 6px 4px 6px 12px; border-radius: 999px; font-size: 15px; color: var(--ink-2); white-space: nowrap; }
.nav-item:not(.has-menu) .nav-top { padding-right: 12px; }
.nav-top:hover, .nav-item:hover > .nav-top { color: var(--ink); }
.nav-top[aria-current="page"] { color: var(--ink); font-weight: 700; }
.nav-item:not(.has-menu) .nav-top[href="/coupons/"] { color: var(--accent); font-weight: 700; }
.nav-toggle { border: 0; background: none; color: var(--ink-3); cursor: pointer; font-size: 12px; padding: 6px 8px 6px 2px; }
.nav-menu { display: none; grid-template-columns: 1fr 1fr; gap: 2px; position: absolute; top: calc(100% + 6px); left: 0; min-width: 440px; padding: 10px; background: var(--card); border: 1px solid var(--line); border-radius: 14px; box-shadow: 0 20px 40px -20px rgba(30, 20, 5, .35); z-index: 30; }
.nav-menu-wide { grid-template-columns: repeat(3, 1fr); min-width: 660px; }
.nav-menu::before { content: ""; position: absolute; left: 0; right: 0; top: -8px; height: 8px; }
.nav-item:last-child .nav-menu, .nav-item:nth-last-child(2) .nav-menu { left: auto; right: 0; }
.nav-menu a { display: flex; flex-direction: column; padding: 8px 12px; border-radius: 10px; text-decoration: none; }
.nav-menu a:hover, .nav-menu a[aria-current="page"] { background: var(--paper); color: var(--ink); }
.nav-menu b { font-size: 14px; font-weight: 600; }
.nav-menu small { font-size: 12px; color: var(--ink-3); }
@media (min-width: 861px) {
  .nav-item.has-menu:hover .nav-menu, .nav-item.has-menu:focus-within .nav-menu, .nav-item.open .nav-menu { display: grid; }
}
@media (max-width: 860px) {
  .site-nav { display: none; position: absolute; top: 64px; left: 0; right: 0; flex-direction: column; background: var(--paper); border-bottom: 1px solid var(--line); padding: 8px 16px 14px; max-height: calc(100vh - 64px); overflow-y: auto; }
  .site-nav.open { display: flex; }
  .nav-item { flex-wrap: wrap; border-bottom: 1px dashed var(--line); }
  .nav-top { flex: 1; padding: 12px 4px; font-size: 16px; }
  .nav-toggle { padding: 12px; font-size: 14px; }
  .nav-item.open .nav-toggle { transform: rotate(180deg); }
  .nav-menu { position: static; min-width: 0; width: 100%; box-shadow: none; border: 0; background: none; padding: 0 0 10px; grid-template-columns: 1fr 1fr; }
  .nav-item.open .nav-menu { display: grid; }
}
.foot-grid { grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)) !important; }
.foot-grid > div:first-child { grid-column: 1 / -1; max-width: 40em; }
/* 机场库 / 对比 / 优惠码 */
.brands { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 12px; margin: 18px 0; }
.brand { display: flex; flex-direction: column; gap: 6px; padding: 14px 16px; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); text-decoration: none; }
.brand:hover { border-color: var(--accent); color: var(--ink); }
.brand-top { display: flex; justify-content: space-between; gap: 8px; align-items: center; }
.brand-top strong { font-family: var(--serif); font-size: 17px; }
.brand-meta { font-size: 13px; color: var(--ink-2); }
.brand-tags { display: flex; flex-wrap: wrap; gap: 4px; }
.compare-pick { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin: 16px 0; }
.compare-pick select { font: inherit; padding: 8px 12px; border-radius: 10px; border: 1px solid var(--line); background: var(--card); color: var(--ink); min-width: 0; flex: 1 1 180px; }
.compare-pick .mono { color: var(--accent); font-weight: 700; }
.compare-table th { width: 7em; background: var(--paper-2); }
.code { cursor: pointer; color: var(--accent); font-weight: 700; border: 1px dashed var(--accent); }
.code.copied::after { content: " 已复制"; font-family: var(--sans); font-weight: 400; color: var(--ok); }
.btn-sm { padding: 5px 12px; font-size: 13px; }
/* 梯子下载 */
.device-panel { display: none; margin-top: 8px; }
.device-panel.on { display: block; }
.device-picker:not(.ready) .device-panel[data-device="windows"] { display: block; }
.device-panel h3 { margin: 18px 0 10px; }
.client { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; }
.client-main { padding: 20px 22px; border-color: var(--ink); }
.client-top { display: flex; flex-wrap: wrap; align-items: baseline; gap: 8px; }
.client-top a { text-decoration: none; }
.client-top strong { font-family: var(--serif); font-size: 19px; }
.client-main .client-top strong { font-size: 24px; }
.client-top small { color: var(--ink-3); font-size: 12px; }
.ver { font-size: 12px; color: var(--ink-2); background: var(--paper-2); padding: 1px 8px; border-radius: 999px; }
.tag-hot { border-color: var(--accent); color: var(--accent); }
.client p { margin: 8px 0; color: var(--ink-2); font-size: 15px; }
.client .client-sub { font-size: 13px; margin: 4px 0 10px; }
.client-btns { display: flex; flex-wrap: wrap; gap: 8px; }
.client-alts { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 12px; margin: 12px 0; }
.also { font-size: 13px; color: var(--ink-3); margin: 16px 0 0; }
.dir-filters { display: flex; flex-wrap: wrap; gap: 10px 16px; align-items: flex-end; margin: 14px 0; }
.dir-filters label { display: flex; flex-direction: column; gap: 4px; font-size: 12px; color: var(--ink-3); }
.dir-filters select { font: inherit; font-size: 14px; padding: 6px 10px; border-radius: 10px; border: 1px solid var(--line); background: var(--card); color: var(--ink); }
.client-table td { vertical-align: top; }
/* 推广卡 */
.promo { display: grid; grid-template-columns: 1fr 220px; gap: 20px; margin: 28px 0; padding: 22px 24px; border-radius: 18px; background: var(--board); color: var(--board-text); }
.promo .eyebrow { color: var(--flap); }
.promo h3 { margin: 0 0 6px; font-size: 24px; color: var(--board-text); display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.promo p { color: #c9c2b0; margin: 0 0 12px; font-size: 15px; }
.promo-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.promo-stats div { background: var(--board-2); border-radius: 10px; padding: 8px 12px; color: var(--flap); font-size: 15px; }
.promo-stats small { display: block; color: #9a937f; font-family: var(--sans); font-size: 11px; }
.promo-cta { display: flex; flex-direction: column; gap: 10px; justify-content: center; }
.promo-cta .btn { width: 100%; }
.promo .btn { background: var(--flap); border-color: var(--flap); color: #1c1a16; }
.promo .btn-ghost { background: transparent; color: var(--board-text); border-color: #4a4538; }
.promo .coupon, .promo .note, .promo .note a { color: #b8b09c; }
.promo .code { color: var(--flap); border-color: var(--flap); background: transparent; }
@media (max-width: 700px) { .promo { grid-template-columns: 1fr; padding: 18px; } .promo-stats { grid-template-columns: 1fr 1fr 1fr; font-size: 13px; } }
/* 测速截图 */
.speedshot { margin: 16px 0; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 10px; }
.speedshot img { display: block; width: 100%; height: auto; border-radius: 8px; background: #fff; }
.speedshot figcaption { font-size: 13px; color: var(--ink-2); padding: 10px 4px 2px; line-height: 1.6; }
.speed-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 14px; margin: 18px 0; }
.speedshot.compact { margin: 0; }
.speedshot.compact img { aspect-ratio: 4 / 5; object-fit: cover; object-position: top; }
.tag-speed { text-decoration: none; border-color: var(--accent); color: var(--accent); }
/* 主推 */
.feat { margin-left: 8px; font-size: 11px; font-weight: 700; padding: 1px 7px; border-radius: 999px; background: var(--flap); color: #1c1a16; vertical-align: 2px; }
.board tr.is-featured td { background: rgba(255, 198, 41, .06); }
.tag-feat { border-color: var(--flap); background: var(--flap); color: #1c1a16; font-weight: 700; }
.tier-list { padding-left: 1.2em; }
.tier-list li { margin: 6px 0; font-size: 15px; }
/* 首页主推：一家一整块 */
.feat-block { margin: 36px 0; padding: 4px 0 28px; border-bottom: 1px dashed var(--line); }
.feat-block h2 { margin-top: 28px; }
.feat-block h3.feat-title { font-size: 1.5em; line-height: 1.3; margin: 28px 0 .83em; }
.feat-no { display: inline-grid; place-items: center; width: 34px; height: 34px; border-radius: 50%; background: var(--ink); color: var(--paper); font-size: 16px; vertical-align: 4px; margin-right: 4px; }
.feat-meta { color: var(--ink-2); font-size: 14px; margin: 0 0 10px; }
.feat-cta { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 14px; }
.feat-prose p { max-width: 52em; margin: 0 0 10px; }
.feat-sell { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 2px 18px; margin: 12px 0; }
.feat-block h3 { font-size: 18px; margin: 22px 0 6px; }
.feat-block .speedshot.compact { max-width: 420px; }
.feat-sell { list-style: none; padding: 0; }
.feat-sell li { position: relative; padding-left: 22px; margin: 4px 0; font-size: 15px; }

/* 购买框：教程与测评页里的主推机场 */
.buybox { margin: 24px 0; padding: 16px 18px; border: 1px solid var(--accent); border-radius: 14px; background: var(--accent-soft); }
.buybox h3 { margin: 0 0 10px; font-size: 17px; }
.buybox .table-wrap { margin: 0; background: var(--bg, transparent); }
.buybox td .btn { white-space: nowrap; }
.buybox .note { margin: 8px 0 0; font-size: 13px; }

/* 机场库工具条 */
.brand-tools { display: grid; gap: 10px; margin: 0 0 16px; }
.brand-tools .brand-search, .brand-tools select { width: 100%; padding: 10px 12px; border: 1px solid var(--line); border-radius: 10px; background: var(--bg, #fff); color: inherit; font: inherit; }
.brand-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.brand-chips .chip { padding: 5px 12px; border: 1px solid var(--line); border-radius: 999px; background: transparent; color: inherit; font: inherit; font-size: 13px; cursor: pointer; }
.brand-chips .chip.is-on { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.tag-buy { background: var(--accent-soft); color: var(--accent); }
.brand[hidden] { display: none; }
.empty { padding: 24px; text-align: center; border: 1px dashed var(--line); border-radius: 12px; }
@media (min-width: 760px) { .brand-tools { grid-template-columns: 1fr 180px; } .brand-chips, .brand-tools .note { grid-column: 1 / -1; } }

/* 问答库 */
.faq-item { border-bottom: 1px solid var(--line); padding: 10px 0; }
.faq-item summary { cursor: pointer; font-weight: 600; }
.faq-item p { margin: 8px 0 0; }

/* 测速卡片与 9 项服务 */
.speed-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 8px; margin: 10px 0 6px; }
.speed-cards .sc { display: grid; gap: 2px; padding: 10px 12px; border: 1px solid var(--line); border-radius: 12px; font-size: 13px; }
.speed-cards .sc b { font-size: 15px; }
.speed-cards .sc em { font-style: normal; font-weight: 600; }
.unlock-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 6px; margin: 10px 0 6px; }
.unlock-grid .ug { display: flex; justify-content: space-between; align-items: center; gap: 6px; padding: 8px 10px; border: 1px solid var(--line); border-radius: 10px; font-size: 13px; }
.quickrank td, .quickrank th { white-space: nowrap; }

/* 买前速查 */
.facts { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 6px 14px; margin: 12px 0; padding: 12px 14px; border: 1px solid var(--line); border-radius: 12px; font-size: 14px; }
.facts div { display: grid; grid-template-columns: 64px 1fr; gap: 8px; }
.facts dt { color: var(--muted, #7a7466); }
.facts dd { margin: 0; }

/* 天梯 / 决策树 / 风险提示 / 本期变化 */
.tiers { display: grid; gap: 10px; margin: 12px 0; }
.tier { padding: 12px 14px; border: 1px solid var(--line); border-radius: 12px; }
.tier-h { display: flex; align-items: baseline; gap: 10px; }
.tier-h b { display: inline-grid; place-items: center; min-width: 34px; height: 34px; padding: 0 6px; border-radius: 8px; font-size: 18px; color: #fff; background: var(--accent); }
.tier-h .tier-a { background: #c8762a; } .tier-h .tier-b { background: #8a7a4a; } .tier-h .tier-c { background: #6f6a60; } .tier-h .tier-n { background: #9b968c; font-size: 13px; }
.tier .note { margin: 6px 0; }
.tier-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.tier-chips a { padding: 4px 10px; border: 1px solid var(--line); border-radius: 999px; font-size: 13px; text-decoration: none; }
.tier-chips i { margin-left: 4px; font-style: normal; font-size: 11px; color: var(--accent); }
.callout.risk { border-color: #d9822b; }
.updates { margin: 8px 0 0; padding-left: 18px; }

/* 测评页：上榜情况 */
.listed { display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); gap: 6px; padding: 0; list-style: none; }
.listed li { display: flex; justify-content: space-between; gap: 8px; padding: 8px 12px; border: 1px solid var(--line); border-radius: 10px; }

/* 专题页机场块里的测速截图缩略图 */
.angle-shot { margin: 10px 0 0; max-width: 360px; }
.angle-shot img { width: 100%; height: auto; border-radius: 10px; border: 1px solid var(--line); }
.angle-shot figcaption { margin-top: 4px; font-size: 12px; }

/* 视觉隐藏：给按钮补上实体名，供读屏与搜索引擎读取，不改变外观 */
.vh{position:absolute!important;left:0;top:0;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* 教程配图：官方页面截图与示意图 */
.guide-fig { margin: 14px 0 18px; max-width: 760px; }
.guide-fig img { display: block; width: 100%; height: auto; border-radius: 12px; border: 1px solid var(--line); background: #fffdf7; }
.guide-fig a { display: block; cursor: zoom-in; }
.guide-fig figcaption { margin-top: 6px; font-size: 13px; color: var(--ink-2); line-height: 1.6; }

/* 长网址（官方下载地址等）在窄屏上换行，避免撑出横向滚动 */
main a, main :not(pre) > code { overflow-wrap: anywhere; }
/* 网格子项允许收缩，长代码块 / 宽表格在各自容器里滚动，不撑宽页面 */
.article-grid > *, .page-body > *, .review-head > *, .steps > li, .grid-2 > * { min-width: 0; }

/* 问答库：只列问题，链到原页问答区 */
.faq-index { padding-left: 1.1em; }
.faq-index li { margin: .45em 0; line-height: 1.6; }