/* ============================================================
   i小火箭 · Shadowrocket 使用与账号攻略
   Citrus 设计系统（参考 id.tangping.icu，纯 CSS 无图片）
   ============================================================ */
:root {
  --canvas: #edf6f4;
  --surface: #ffffff;
  --ink: #123d42;
  --muted: #526e71;
  --line: #d6e6e3;
  --cyan: #006c76;
  --orange: #ff9a42;
  --orange-ink: #843b12;
  --deep-1: #03343c;
  --deep-2: #07515a;
  --deep-3: #0d737b;
  --footer-bg: #0b3d42;
  --green-soft: #eafdf7;
  --gold: #ffd49a;
  --radius: 14px;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--canvas);
  font: 14px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  min-width: 0;
  isolation: isolate;
  position: relative;
}
h1, h2, h3, h4, p { margin: 0; }
a { color: inherit; text-decoration: none; }
a, button, input, select { -webkit-tap-highlight-color: transparent; }
button, input, select { font: inherit; margin: 0; }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible {
  outline: 3px solid #b14a12; outline-offset: 4px;
}
[hidden] { display: none !important; }
img { max-width: 100%; display: block; }
code { font-family: "SFMono-Regular", Consolas, monospace; }
ul, ol { padding-left: 1.2em; }

/* ---------- 顶部场景（深青渐变 + 网格 + 丝带） ---------- */
.citrus-scene {
  position: absolute; inset: 0 0 auto; height: 620px; z-index: -1;
  overflow: hidden;
  background: linear-gradient(115deg, #03343c 15%, #07515a 55%, #0d737b);
  border-radius: 0 0 64px 64px;
  pointer-events: none;
}
.scene-ribbon {
  position: absolute; border: 1px solid #9cf6e050; transform: rotate(-28deg); border-radius: 48%;
}
.ribbon-cyan { width: 560px; height: 240px; top: -60px; left: -80px; }
.ribbon-orange { width: 420px; height: 190px; bottom: 40px; right: -60px; border-color: #ffb56c33; }
.scene-grid {
  position: absolute; inset: 0;
  background-image: linear-gradient(#ffffff06 1px, transparent 1px),
                    linear-gradient(90deg, #ffffff06 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(90deg, transparent, #000);
}

/* ---------- 顶部栏 ---------- */
.topbar {
  width: min(1220px, calc(100% - 48px));
  margin: auto;
  min-height: 84px;
  display: flex; justify-content: space-between; align-items: center; gap: 24px;
  border-bottom: 1px solid #ffffff20;
  color: #fff;
}
.brand {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 20px; font-weight: 750; letter-spacing: -.5px; white-space: nowrap;
}
.brand-logo {
  width: 34px; height: 34px; border-radius: 10px; flex-shrink: 0;
  display: grid; place-items: center;
  background: linear-gradient(135deg, #ffd49a, #ff9b46);
  color: #173b3e; font-size: 17px; font-weight: 800;
  box-shadow: 0 4px 14px #002e3440;
}
.brand-divider { color: #a2e4dc; margin: 0 4px; font-weight: 400; }
.brand-product { font-weight: 400; color: #d0e6e2; font-size: 16px; }
.nav { display: flex; align-items: center; gap: 26px; font-size: 13px; }
.nav a { color: #d0e6e2; padding: 8px 0; }
.nav a.active, .nav a:hover { color: #fff; }
.nav a.active { border-bottom: 2px solid #ff9b46; }
.nav a.nav-ext { color: #b6f4de; }

/* ---------- 页面容器 ---------- */
.page {
  position: relative;
  width: min(1220px, calc(100% - 48px));
  margin: auto;
  padding-bottom: 8px;
}

/* ---------- Hero ---------- */
.hero {
  display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  gap: 60px; align-items: center;
  min-height: 380px; padding: 42px 0 46px;
  color: #fff; position: relative; overflow: hidden; overflow: clip;
}
.hero-copy { position: relative; z-index: 2; }
.eyebrow {
  display: block; font-size: 10px; font-weight: 700; letter-spacing: 2px;
  color: #a2e4dc; margin-bottom: 14px;
}
.eyebrow i {
  display: inline-block; width: 7px; height: 7px; border-radius: 50%;
  background: #66e5bb; margin-right: 8px; vertical-align: 2px;
}
.hero h1 { font-size: 42px; font-weight: 800; letter-spacing: -1px; line-height: 1.2; }
.hero .lead { font-size: 20px; font-weight: 500; letter-spacing: -.4px; margin: 14px 0 12px; color: #f3fffb; }
.hero .hero-description { color: #b5d3d2; font-size: 14px; line-height: 1.9; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 20px; margin: 24px 0 18px; }
.primary-button {
  display: inline-flex; align-items: center; justify-content: center; gap: 24px;
  min-height: 48px; padding: 12px 24px; border-radius: 10px;
  color: #173b3e; background: linear-gradient(115deg, #ffd49a, #ff9b46);
  font-weight: 700; font-size: 14px; box-shadow: 0 6px 24px #002e3440;
  transition: transform .2s, box-shadow .2s;
}
.primary-button:hover { transform: translateY(-2px); box-shadow: 0 8px 30px #ffad3830; }
.text-button { color: #d0e6e2; font-size: 13px; padding: 10px 0; }
.text-button:hover { color: #fff; }
.status-row { display: flex; align-items: center; gap: 8px; font-size: 11px; color: #afcfca; flex-wrap: wrap; }
.online-dot { width: 6px; height: 6px; background: #66e5bb; border-radius: 50%; flex-shrink: 0; }

/* ---------- 护照卡（纯 CSS） ---------- */
.hero-passport {
  height: 280px; position: relative; perspective: 1000px;
  min-width: 0; max-width: 100%; isolation: isolate;
}
.passport-orbit {
  position: absolute; width: 470px; height: 200px;
  border: 1px solid #a5fff14d; border-radius: 50%;
  inset: 40px auto auto -15px; transform: rotate(-22deg); z-index: -1;
}
.orbit-two { transform: rotate(18deg); top: 20px; left: 40px; border-color: #ffb56c26; }
.passport-back {
  position: absolute; left: 55px; top: 25px; width: 335px; height: 213px; border-radius: 20px;
  background: linear-gradient(145deg, #ffdba1, #f29555); color: #753b15;
  padding: 20px; font-size: 8px; font-weight: 800; letter-spacing: 2px;
  transform: rotate(11deg); box-shadow: 0 20px 60px #00252b40;
  display: flex; align-items: flex-end;
}
.passport-card {
  position: absolute; left: 25px; top: 28px; width: 335px; height: 213px;
  border: 1px solid #e2fff04f; border-radius: 20px;
  background: linear-gradient(132deg, #c7f6e7, #62cebf 75%, #25b2b5);
  transform: rotate(-8deg); padding: 22px; color: #073f46;
  box-shadow: 0 25px 50px #002d334a; overflow: hidden;
}
.passport-card::after {
  content: ""; position: absolute; width: 270px; height: 270px;
  border: 1px solid #ffffff60; border-radius: 50%; right: -110px; top: 0;
}
.passport-label { font-size: 8px; font-weight: 750; letter-spacing: 1.7px; }
.passport-symbol {
  display: flex; align-items: center; justify-content: space-between;
  font-size: 84px; font-weight: 850; line-height: 1.16; letter-spacing: -6px;
}
.passport-symbol em { font-style: normal; color: #0a5f57; font-size: 30px; }
.passport-bottom {
  display: flex; justify-content: space-between; align-items: flex-end; gap: 20px;
  font-size: 11px; font-weight: 800; line-height: 1.3; letter-spacing: .5px;
}
.passport-countries { font-size: 12px; font-weight: 600; text-align: right; }
.passport-countries small { display: block; font-size: 9px; font-weight: 400; color: #0a5f57; }
.passport-float {
  position: absolute; left: 210px; bottom: 3px; padding: 10px 17px;
  background: #fff4de; color: #664623; font-size: 11px; border-radius: 99px;
  transform: rotate(-5deg); box-shadow: 0 7px 25px #02363c35; white-space: nowrap;
}

/* ---------- 促销 / 精选双卡 ---------- */
.promotions { margin: 6px 0 40px; }
.promotion-heading {
  display: flex; justify-content: space-between; align-items: center; gap: 20px;
  margin-bottom: 16px; color: #c3ded7;
}
.promotion-heading h2 { font-size: 17px; font-weight: 600; letter-spacing: .4px; color: #eafdf7; }
.promotion-heading h2 > span { font-size: 10px; font-weight: 400; color: #abd0c8; margin-left: 8px; letter-spacing: 1px; }
.promotion-heading > span { font-size: 11px; color: #abd0c8; }
.promotion-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.promotion {
  position: relative; display: block; min-width: 0; min-height: 240px;
  padding: 27px 30px 34px; border-radius: 22px; isolation: isolate; overflow: hidden;
  box-shadow: 0 18px 40px #002d3315;
  background: radial-gradient(ellipse at 100% 80%, #ff9d4a80, transparent 65%),
              linear-gradient(115deg, #fff0dc, #ffd7a7);
  border: 1px solid #ffdda5;
  transition: transform .22s, box-shadow .22s;
}
.promotion-network {
  background: radial-gradient(ellipse at 95% 80%, #28d2d280, transparent 66%),
              linear-gradient(125deg, #064f57, #0b7880);
  border-color: #5ca29e; color: #fff;
}
.promotion:hover { transform: translateY(-4px); box-shadow: 0 22px 45px #003b3d25; }
.promotion-category {
  display: flex; align-items: center; gap: 12px;
  font-size: 9px; font-weight: 750; letter-spacing: 1.5px; color: #7f451f;
}
.promotion-category > span {
  font-size: 9px; letter-spacing: .6px; padding: 3px 8px;
  border: 1px solid #94572450; border-radius: 99px; font-weight: 500;
}
.promotion-network .promotion-category { color: #b0e5dc; }
.promotion-network .promotion-category > span { color: #ffdbaa; border-color: #ffc78760; }
.promotion-copy { position: relative; z-index: 2; max-width: 68%; margin-top: 19px; }
.promotion h3 { font-size: 22px; font-weight: 700; line-height: 1.4; letter-spacing: -.8px; color: #173e40; }
.promotion h3 em { display: inline-block; margin-top: 2px; font-size: 27px; letter-spacing: -1px; font-style: normal; color: #a24515; font-weight: 800; }
.promotion p { font-size: 12px; line-height: 1.65; color: #785942; margin: 12px 0 17px; max-width: 280px; }
.promotion-network h3 { color: #fff; font-weight: 800; font-size: 26px; }
.promotion-network h3 em { color: #ffd395; font-size: 26px; }
.promotion-network p { color: #c0e7df; }
.promotion-cta {
  display: inline-flex; align-items: center; justify-content: space-between; gap: 22px;
  padding: 10px 16px; min-height: 42px; background: #153e41; color: #fff8eb;
  border-radius: 9px; font-size: 12px; font-weight: 650; transition: gap .2s;
}
.promotion-network .promotion-cta { background: #ffdaad; color: #183d3d; }
.promotion-fineprint {
  position: absolute; bottom: 14px; left: 30px; color: #725138;
  font-size: 7px; letter-spacing: 1.7px; font-weight: 600;
}
.promotion-network .promotion-fineprint { color: #9acdc9; }
/* 站内精选：文章缩略卡片视觉 */
.promotion-stack {
  position: absolute; right: 26px; top: 40px; z-index: 1;
  width: 200px; display: flex; flex-direction: column; gap: 8px;
  transform: rotate(6deg);
}
.promotion-stack .mini-card {
  background: #fffdf5; border: 1px solid #ffd9a5; border-radius: 10px;
  padding: 10px 12px; font-size: 10px; color: #7a5a3c; line-height: 1.5;
  box-shadow: 0 8px 18px #a85c2518;
}
.promotion-stack .mini-card b { display: block; color: #173e40; font-size: 11px; margin-bottom: 2px; }
.promotion-stack .mini-card:nth-child(2) { transform: translateX(10px); opacity: .92; }
.promotion-stack .mini-card:nth-child(3) { transform: translateX(20px); opacity: .84; }
.promotion-network .promotion-stack .mini-card { background: #eafff5; border-color: #8fd8c4; color: #2c6b5c; }

/* ---------- 区块通用 ---------- */
.section { margin: 0 0 42px; }
.section-head { display: flex; justify-content: space-between; align-items: baseline; gap: 20px; margin-bottom: 18px; }
.section-head h2 { font-size: 20px; font-weight: 750; letter-spacing: -.3px; color: var(--ink); }
.more-link { color: var(--cyan); font-size: 13px; font-weight: 600; white-space: nowrap; }
.more-link:hover { text-decoration: underline; }

/* ---------- 文章卡片网格 ---------- */
.post-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.post-card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; transition: transform .18s, box-shadow .18s;
  display: flex; flex-direction: column;
}
.post-card:hover { transform: translateY(-3px); box-shadow: 0 14px 30px #0b3d4215; }
.card-img {
  display: block; aspect-ratio: 16 / 9; overflow: hidden;
  background: linear-gradient(120deg, #bfe7dd, #7fd0c5);
}
.card-img img { width: 100%; height: 100%; object-fit: cover; }
.card-img.placeholder { display: grid; place-items: center; color: #0b5f57; font-size: 34px; }
.card-body { padding: 14px 16px 16px; display: flex; flex-direction: column; gap: 6px; flex: 1; }
.card-body time { font-size: 11px; color: #8aa8a0; }
.card-cat {
  font-size: 10px; color: var(--cyan); background: #e4f5ef;
  padding: 2px 8px; border-radius: 99px; width: fit-content; font-weight: 600;
}
.card-body h3 { font-size: 15px; line-height: 1.5; font-weight: 700; }
.card-body h3 a:hover { color: var(--cyan); }
.card-body p { font-size: 12px; color: var(--muted); line-height: 1.7; }

/* ---------- 列表行（文章页 / 分类页） ---------- */
.post-list { display: flex; flex-direction: column; gap: 14px; }
.post-row {
  display: grid; grid-template-columns: 200px 1fr; gap: 18px;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 16px; align-items: center; transition: transform .18s, box-shadow .18s;
}
.post-row:hover { transform: translateY(-2px); box-shadow: 0 12px 26px #0b3d4212; }
.row-img {
  display: block; aspect-ratio: 16 / 10; border-radius: 10px; overflow: hidden;
  background: linear-gradient(120deg, #bfe7dd, #7fd0c5); position: relative;
}
.row-img img { width: 100%; height: 100%; object-fit: cover; }
.row-img.placeholder { display: grid; place-items: center; color: #0b5f57; font-size: 30px; }
.row-body { min-width: 0; }
.row-meta { display: flex; align-items: center; gap: 10px; font-size: 11px; color: #8aa8a0; margin-bottom: 6px; }
.row-body h2 { font-size: 17px; line-height: 1.5; font-weight: 700; margin-bottom: 6px; }
.row-body h2 a:hover { color: var(--cyan); }
.row-body p { font-size: 13px; color: var(--muted); line-height: 1.75; }

/* ---------- 分类卡 ---------- */
.cat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.cat-grid-large { grid-template-columns: repeat(4, 1fr); }
.cat-card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 18px; display: flex; flex-direction: column; gap: 6px;
  transition: transform .18s, box-shadow .18s;
}
.cat-card:hover { transform: translateY(-3px); box-shadow: 0 12px 26px #0b3d4212; }
.cat-name { font-size: 15px; font-weight: 700; }
.cat-count { font-size: 11px; color: #8aa8a0; }

/* ---------- FAQ ---------- */
.faq-list { display: flex; flex-direction: column; gap: 10px; }
.faq-list details {
  background: var(--surface); border: 1px solid var(--line); border-radius: 12px;
  padding: 0 16px; overflow: hidden;
}
.faq-list summary {
  cursor: pointer; padding: 14px 0; font-size: 14px; font-weight: 650;
  list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 12px;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; font-size: 18px; color: var(--cyan); transition: transform .2s; }
.faq-list details[open] summary::after { transform: rotate(45deg); }
.faq-list details p { padding: 0 0 14px; font-size: 13px; color: var(--muted); line-height: 1.8; }

/* ---------- 页面 hero（列表页/文章页顶部） ---------- */
.page-hero { padding: 40px 0 28px; color: #fff; }
.page-hero .hero-kicker { font-size: 11px; letter-spacing: 2px; color: #a2e4dc; font-weight: 700; margin-bottom: 10px; }
.page-hero h1 { font-size: 30px; font-weight: 800; letter-spacing: -.6px; }
.page-hero p { font-size: 13px; color: #cfe4df; margin-top: 10px; max-width: 640px; }

/* ---------- 面包屑 ---------- */
.breadcrumb { padding: 20px 0 0; color: #9fc8c2; font-size: 12px; }
.breadcrumb a { color: #d0e6e2; }
.breadcrumb a:hover { color: #fff; text-decoration: underline; }

/* ---------- 文章正文 ---------- */
.article-wrap { background: var(--surface); border: 1px solid var(--line); border-radius: 18px; padding: 34px 40px; margin: 22px 0; }
.article-header { margin-bottom: 22px; }
.article-meta { display: flex; align-items: center; gap: 10px; font-size: 12px; color: #8aa8a0; margin-bottom: 12px; }
.article-meta .dot { color: #c2d8d0; }
.article-meta .cat-tag { color: var(--cyan); font-weight: 600; }
.article-header h1 { font-size: 26px; font-weight: 800; letter-spacing: -.5px; line-height: 1.4; }
.article-desc { margin-top: 12px; font-size: 14px; color: var(--muted); line-height: 1.8; }
.article-body { font-size: 15px; line-height: 1.95; color: #2c4a4d; }
.article-body h2 {
  font-size: 19px; font-weight: 750; margin: 28px 0 12px; padding-left: 12px;
  border-left: 4px solid var(--orange); color: var(--ink); line-height: 1.4;
}
.article-body h3 { font-size: 16px; font-weight: 700; margin: 20px 0 8px; color: var(--ink); }
.article-body p { margin: 12px 0; }
.article-body ul, .article-body ol { margin: 12px 0; }
.article-body li { margin: 6px 0; }
.article-body a { color: var(--cyan); text-decoration: underline; text-underline-offset: 3px; }
.article-body a:hover { color: var(--orange-ink); }
.article-body img { border-radius: 12px; margin: 14px auto; }
.article-body blockquote {
  margin: 16px 0; padding: 12px 18px; background: #f2faf6;
  border-left: 4px solid var(--cyan); border-radius: 8px; color: var(--muted); font-size: 14px;
}
.article-body table { width: 100%; border-collapse: collapse; margin: 14px 0; font-size: 13px; }
.article-body th, .article-body td { border: 1px solid var(--line); padding: 9px 12px; text-align: left; }
.article-body th { background: #f2faf6; }
.article-tags { margin-top: 24px; padding-top: 18px; border-top: 1px solid var(--line); display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.tags-label { font-size: 12px; color: #8aa8a0; }
.tag { font-size: 11px; background: #e4f5ef; color: var(--cyan); border-radius: 99px; padding: 4px 10px; }

/* ---------- 目录 ---------- */
.toc { background: #f2faf6; border: 1px solid var(--line); border-radius: 12px; padding: 16px 20px; margin-bottom: 8px; }
.toc-title { font-size: 12px; font-weight: 700; color: var(--cyan); margin-bottom: 8px; letter-spacing: .5px; }
.toc-body ol { margin: 0; padding-left: 1.1em; }
.toc-body li { margin: 5px 0; font-size: 13px; }
.toc-body li.toc-h3 { padding-left: 1.1em; font-size: 12px; }
.toc-body a { color: var(--muted); }
.toc-body a:hover { color: var(--cyan); }

/* ---------- 相关阅读 ---------- */
.related { margin-top: 28px; }
.related h2 { font-size: 18px; font-weight: 750; margin-bottom: 14px; }
.related .post-grid { grid-template-columns: repeat(3, 1fr); }

/* ---------- 上下篇 ---------- */
.post-pager { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 24px; }
.post-pager a {
  background: var(--surface); border: 1px solid var(--line); border-radius: 12px;
  padding: 14px 18px; display: flex; flex-direction: column; gap: 4px;
  transition: border-color .18s;
}
.post-pager a:hover { border-color: var(--cyan); }
.post-pager a.pager-next { text-align: right; }
.post-pager span { font-size: 11px; color: #8aa8a0; }
.post-pager a { font-size: 14px; font-weight: 650; }

/* ---------- 特性条 ---------- */
.feature-strip {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin: 0 0 42px;
}
.feature-item {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 20px; display: flex; gap: 14px; align-items: flex-start;
}
.feature-icon {
  width: 42px; height: 42px; border-radius: 12px; flex-shrink: 0;
  display: grid; place-items: center; font-size: 20px;
  background: linear-gradient(135deg, #e4f5ef, #c9ede1); color: var(--cyan);
}
.feature-item h3 { font-size: 14px; font-weight: 700; margin-bottom: 4px; }
.feature-item p { font-size: 12px; color: var(--muted); line-height: 1.7; }

/* ---------- 页脚 ---------- */
.site-footer {
  margin-top: 48px; padding: 32px max(32px, calc((100% - 1220px) / 2)) 22px;
  background: var(--footer-bg); color: #d7ebe3; border-top: 1px solid #174a4a;
}
.footer-main { display: grid; grid-template-columns: 1.3fr 1fr 1fr; gap: 32px; }
.footer-main .brand { font-size: 17px; color: #fff; }
.footer-main p { font-size: 12px; color: #a3c1b5; margin-top: 9px; }
.footer-main nav { display: flex; flex-wrap: wrap; align-content: flex-start; gap: 6px 20px; font-size: 12px; }
.footer-main nav a { padding: 7px 0; color: #c9e2da; }
.footer-main nav a:hover { color: #ffd095; }
.footer-main nav span { flex-basis: 100%; font-size: 11px; color: #9abaae; }
.footer-meta {
  display: flex; justify-content: space-between; gap: 16px;
  border-top: 1px solid #ffffff20; margin-top: 25px; padding-top: 16px;
  font-size: 10px; color: #a4bfb3;
}
.footer-meta a { color: #b6f4de; }
.footer-note { font-size: 11px; color: #9abaae; margin-top: 8px !important; }

/* ---------- 404 ---------- */
.err-wrap { text-align: center; padding: 80px 20px; }
.err-wrap .err-code { font-size: 72px; font-weight: 850; color: var(--cyan); }
.err-wrap p { color: var(--muted); margin: 12px 0 24px; }

/* ---------- 按钮通用 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 44px; padding: 10px 20px; border-radius: 10px;
  background: linear-gradient(115deg, #ffd49a, #ff9b46); color: #173b3e;
  font-weight: 700; font-size: 13px; box-shadow: 0 6px 20px #002e3430;
}
.btn:hover { transform: translateY(-2px); }
.btn-ghost { background: transparent; color: #d0e6e2; border: 1px solid #ffffff40; box-shadow: none; }
.btn-ghost:hover { background: #ffffff14; }

/* ---------- 响应式 ---------- */
@media (max-width: 960px) {
  .hero { grid-template-columns: 1fr; gap: 30px; min-height: 0; padding: 32px 0 20px; }
  .hero h1 { font-size: 32px; }
  .hero-passport { max-width: 380px; margin: 0 auto; }
  .promotion-grid { grid-template-columns: 1fr; }
  .promotion h3 { font-size: 20px; }
  .post-grid, .related .post-grid { grid-template-columns: 1fr 1fr; }
  .cat-grid, .cat-grid-large { grid-template-columns: 1fr 1fr; }
  .footer-main { grid-template-columns: 1fr; gap: 20px; }
  .feature-strip { grid-template-columns: 1fr; }
  .post-row { grid-template-columns: 140px 1fr; }
  .article-wrap { padding: 24px 20px; }
  .article-body { font-size: 14px; }
}
@media (max-width: 600px) {
  .topbar { flex-direction: column; gap: 10px; padding: 14px 0; }
  .nav { gap: 18px; font-size: 12px; flex-wrap: wrap; justify-content: center; }
  .hero h1 { font-size: 27px; }
  .hero-actions { gap: 14px; }
  .post-grid, .related .post-grid { grid-template-columns: 1fr; }
  .cat-grid, .cat-grid-large { grid-template-columns: 1fr 1fr; }
  .post-row { grid-template-columns: 1fr; }
  .post-pager { grid-template-columns: 1fr; }
  .promotion-stack { display: none; }
  .promotion-copy { max-width: 100%; }
  .citrus-scene { border-radius: 0 0 36px 36px; }
  .passport-card, .passport-back { width: 290px; height: 185px; }
  .passport-symbol { font-size: 70px; }
  .footer-meta { flex-direction: column; gap: 6px; }
}


.guide-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.guide-grid article { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; display: flex; flex-direction: column; gap: 12px; transition: transform .18s, box-shadow .18s; }
.guide-grid article:hover { transform: translateY(-3px); box-shadow: 0 12px 26px #0b3d4212; }
.guide-grid h3 { font-size: 15px; font-weight: 700; margin-bottom: 8px; }
.guide-grid p { font-size: 13px; color: var(--muted); line-height: 1.75; }

@media (max-width: 960px) {
  .guide-grid { grid-template-columns: 1fr; }
}


/* ---------- 账号商品（首页商品栏目） ---------- */
.shop-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.shop-card {
  position: relative; display: flex; flex-direction: column; gap: 10px;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 22px 20px 20px;
  transition: transform .18s, box-shadow .18s;
}
.shop-card:hover { transform: translateY(-3px); box-shadow: 0 14px 30px #0b3d4215; }
.shop-card.hot { border-color: #ffcf9a; background: linear-gradient(160deg, #fffaf3, #ffffff 60%); }
.shop-tag {
  align-self: flex-start; font-size: 9px; font-weight: 700; letter-spacing: 1.2px;
  color: var(--cyan); background: #e4f5ef; padding: 3px 9px; border-radius: 99px;
}
.shop-card.hot .shop-tag { color: #843b12; background: #ffe9d2; }
.shop-card h3 { font-size: 15px; font-weight: 750; line-height: 1.45; color: var(--ink); }
.shop-card h3 small { display: block; margin-top: 3px; font-size: 10px; font-weight: 500; letter-spacing: 1px; color: #8aa8a0; }
.shop-price { display: flex; align-items: baseline; gap: 2px; margin: 4px 0 2px; color: #a24515; }
.shop-price b { font-size: 30px; font-weight: 800; letter-spacing: -1.5px; line-height: 1; }
.shop-price i { font-size: 14px; font-style: normal; font-weight: 700; }
.shop-price em { font-size: 11px; font-style: normal; color: #8aa8a0; font-weight: 500; margin-left: 4px; }
.shop-desc { font-size: 12px; line-height: 1.7; color: var(--muted); flex: 1; }
.shop-cta {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 40px; padding: 10px 14px; border-radius: 9px;
  background: var(--deep-1); color: #fff8eb;
  font-size: 13px; font-weight: 650; transition: background .18s;
}
.shop-cta:hover { background: var(--cyan); }
.shop-card.hot .shop-cta { background: linear-gradient(115deg, #ffb56c, #ff9a42); color: #4a2408; }
.shop-card.hot .shop-cta:hover { background: linear-gradient(115deg, #ffc48a, #ffab5e); }
.shop-note { margin-top: 14px; font-size: 11px; color: #8aa8a0; line-height: 1.7; }

@media (max-width: 960px) {
  .shop-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .shop-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .shop-card { padding: 18px 14px 16px; }
  .shop-price b { font-size: 26px; }
  .shop-card h3 { font-size: 14px; }
  .shop-cta { font-size: 12px; }
}