/* 102楼社区 · 102lou.xyz
   design tokens 取自本地保存站点的 Discuz style_3 皮肤
   （强调色 #A8C500、1200=210+20+970 双栏、卡片圆角 2px、缩略 20%、导航激活 3px 上边框）。
   全站只做浅色底。 */

:root {
  --bg: #F8F9FA;
  --surface: #FFFFFF;
  --surface-2: #FCFCFC;
  --tint: #F5F9E3;
  --ink: #333333;
  --ink-2: #444444;
  --ink-3: #474B49;
  --muted: #5F6469;
  --line: #E7E7E7;
  --line-2: #F0F0F0;
  --line-3: #DCDCDC;
  --accent: #A8C500;
  --accent-deep: #5F7000;
  --accent-fill: #6B7E00;
  --accent-fill-hover: #586900;
  --accent-soft: rgba(168, 197, 0, .35);
  --orange: #B25200;
  --tag-green: #3A7F49;
  --r-card: 2px;
  --r-thumb: 20%;
  --r-pill: 44px;
  --r-tag: 3px;
  --shadow-card: 0 2px 0 #E9ECEE;
  --shadow-lift: 0 2px 0 var(--accent-soft);
  --ease: cubic-bezier(.25, .1, .25, 1);
  --ease-img: cubic-bezier(.4, 0, .2, 1);
  --font: "Microsoft YaHei", STHeiti, "PingFang SC", "Hiragino Sans GB", Arial, sans-serif;
  --container: 1200px;
  --rail: 210px;
  --gap: 20px;
  --cta-space: 96px;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  padding-bottom: calc(var(--cta-space) + 8px);
  background-color: #F8F9FA;
  color: #444444;
  font-family: "Microsoft YaHei", STHeiti, "PingFang SC", "Hiragino Sans GB", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  letter-spacing: 0;
  overflow-x: hidden;
}

h1, h2, h3, h4 { margin: 0; line-height: 1.4; color: var(--ink); overflow-wrap: anywhere; }
h1 { font-size: 26px; font-weight: 700; }
h2 { font-size: 20px; font-weight: 700; }
h3 { font-size: 17px; font-weight: 700; }
h4 { font-size: 15px; font-weight: 700; }
p { margin: 0; overflow-wrap: anywhere; }
ul, ol { margin: 0; padding-left: 1.25em; }
li { overflow-wrap: anywhere; }
img { max-width: 100%; height: auto; }
a { color: var(--accent-deep); text-decoration: none; }
a:hover { color: var(--accent-deep); }
button { font: inherit; color: inherit; }
strong { font-weight: 700; }

:focus-visible { outline: 2px solid var(--accent-fill); outline-offset: 2px; }

.wrap { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 12px; }
.skip { position: absolute; left: -9999px; top: 0; z-index: 300; background: var(--accent-fill); color: #fff; padding: 10px 16px; }
.skip:focus { left: 0; }

/* 顶部条 */
.topbar { background: var(--surface); border-bottom: 1px solid var(--line-2); font-size: 13px; }
.topbar .in { width: 100%; max-width: var(--container); margin: 0 auto; padding: 6px 12px; display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.topbar span { color: var(--muted); }
.topbar .r { margin-left: auto; display: flex; gap: 12px; }
.topbar a { color: var(--ink-2); }
.topbar a:hover { color: var(--accent-deep); }

/* 页头 */
.zz-head { background: var(--surface); border-bottom: 1px solid var(--line); }
.zz-head .row1 { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 12px; display: flex; align-items: center; gap: 14px; height: 60px; }
.logo { display: inline-flex; align-items: center; flex: none; }
.logo-text { font-size: 23px; font-weight: 700; color: var(--accent-deep); letter-spacing: .5px; line-height: 1; }
.logo:hover .logo-text { color: var(--accent-fill); }
.pill-go {
  display: inline-flex; align-items: center; justify-content: center; gap: 5px;
  width: 95px; height: 28px; border: 1px solid var(--line-3); border-radius: var(--r-pill);
  color: var(--muted); font-size: 13px; flex: none; cursor: pointer; background: #fff;
}
.pill-go:hover { background: #FFF5F5; border-color: var(--accent); color: var(--accent-deep); }
.head-search { margin-left: auto; display: none; position: relative; }
.head-search input {
  width: 240px; height: 32px; padding: 0 40px 0 12px; font-size: 13px;
  border: 1px solid var(--line); border-radius: var(--r-pill); color: var(--ink-2);
}
.head-search input::placeholder { color: var(--muted); }
.head-search .go {
  position: absolute; right: 3px; top: 3px; width: 26px; height: 26px; border: 0; cursor: pointer;
  border-radius: 50%; background: var(--accent-fill); color: #fff;
  display: inline-flex; align-items: center; justify-content: center;
}
.head-search .go:hover { background: var(--accent-fill-hover); }
.search-out {
  position: absolute; left: 0; right: 0; top: 38px; z-index: 70; background: #fff;
  border: 1px solid var(--line); border-radius: var(--r-card); box-shadow: 0 6px 18px rgba(0, 0, 0, .1); overflow: hidden;
}
.search-out[hidden] { display: none; }
.search-out a { display: block; padding: 8px 12px; border-bottom: 1px solid var(--line-2); }
.search-out a:last-child { border-bottom: 0; }
.search-out a:hover { background: var(--tint); }
.search-out b { display: block; font-size: 13px; color: var(--ink); }
.search-out span { font-size: 12px; color: var(--muted); }
.search-out .none { padding: 9px 12px; font-size: 13px; color: var(--muted); }
.head-right { margin-left: auto; display: flex; align-items: center; gap: 10px; flex: none; }
.head-right a { font-size: 13px; color: var(--ink-2); }
.head-right a:hover { color: var(--accent-deep); }
.head-right .join { color: var(--accent-deep); font-weight: 700; }
.burger {
  display: inline-flex; align-items: center; justify-content: center; width: 38px; height: 38px;
  background: var(--surface-2); border: 1px solid var(--line); border-radius: var(--r-card);
  cursor: pointer; color: var(--ink-2); flex: none;
}
.burger:hover { color: var(--accent-deep); border-color: var(--accent); }

/* 导航（激活态用 3px 上边框） */
.nv { background: var(--surface); border-bottom: 1px solid var(--line); }
.nv .in { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 12px; display: flex; overflow-x: auto; }
.nv ul { display: flex; align-items: stretch; margin: 0; padding: 0; list-style: none; }
.nv a {
  display: flex; align-items: center; height: 52px; padding: 0 17px;
  font-size: 14px; color: var(--ink-3); white-space: nowrap;
  border-top: 3px solid transparent;
}
.nv a:hover { color: var(--accent-deep); }
.nv a[aria-current="page"] { color: var(--accent-deep); border-top-color: var(--accent); font-weight: 700; }

/* 抽屉 */
.drawer[hidden] { display: none; }
.drawer-mask { position: fixed; inset: 0; z-index: 90; background: rgba(51, 51, 51, .45); }
.drawer-panel {
  position: fixed; top: 0; right: 0; bottom: 0; z-index: 91;
  width: min(84vw, 330px); padding: 12px 14px 26px; overflow-y: auto; background: #fff;
  border-left: 1px solid var(--line); box-shadow: -10px 0 26px rgba(0, 0, 0, .16);
  animation: drawer-in .3s cubic-bezier(.16, 1, .3, 1) both;
}
@keyframes drawer-in { from { transform: translateX(100%); } to { transform: translateX(0); } }
.drawer-head { display: flex; align-items: center; margin-bottom: 8px; }
.drawer-head span { font-size: 13px; color: var(--muted); }
.drawer-x { margin-left: auto; width: 34px; height: 34px; border: 0; background: transparent; font-size: 20px; line-height: 1; cursor: pointer; color: var(--ink-2); }
.drawer-srch { margin-bottom: 10px; }
.drawer-srch input { width: 100%; height: 34px; padding: 0 10px; font-size: 13px; border: 1px solid var(--line); border-radius: var(--r-card); }
.drawer-group { margin-bottom: 12px; }
.drawer-group h2 { font-size: 13px; color: var(--muted); font-weight: 400; margin-bottom: 4px; padding-left: 8px; }
.drawer-group a { display: flex; align-items: center; min-height: 42px; padding: 0 8px; font-size: 15px; color: var(--ink-2); border-radius: var(--r-card); }
.drawer-group a:hover { background: var(--tint); color: var(--accent-deep); }

/* 双栏外壳 */
.shell { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 12px; display: block; }
.rail { margin-top: 10px; }
.rail-box { background: #F8F9FA; border: 1px solid var(--line); }
.rail-title {
  height: 34px; display: flex; align-items: center; padding-left: 18px;
  background: var(--accent-fill); color: #fff; font-size: 14px; font-weight: 700;
}
.rail-list { margin: 0; padding: 0; list-style: none; font-size: 14px; }
.rail-item { display: block; width: 100%; text-align: left; border: 0; background: transparent; cursor: pointer; }
.rail-item span {
  display: block; padding: 0 0 0 22px; line-height: 39px; width: 100%;
  border-bottom: 1px dotted #B1B4B6; color: var(--ink); font-size: 14px;
}
.rail-item:hover span { background: #F3F3F3; border-bottom-color: transparent; border-top: 1px solid #DDD; line-height: 37px; }
.rail-item[aria-pressed="true"] span { background: #F3F3F3; color: var(--accent-deep); font-weight: 700; border-bottom-color: transparent; border-top: 1px solid #DDD; line-height: 37px; }
.rail-all {
  display: block; width: calc(100% - 24px); margin: 16px auto 12px; height: 36px; line-height: 34px;
  text-align: center; border: 1px solid var(--line); border-radius: var(--r-card);
  color: var(--ink-2); font-weight: 700; background: #fff;
}
.rail-all:hover { border-color: var(--accent); color: var(--accent-deep); background: var(--tint); }

/* 移动端分类条（桌面隐藏） */
.rail-strip { display: flex; gap: 8px; overflow-x: auto; padding: 10px 0 2px; }
.rail-strip button {
  flex: none; border: 1px solid var(--line); background: #fff; color: var(--ink-2);
  border-radius: var(--r-pill); padding: 6px 14px; font-size: 13px; cursor: pointer;
}
.rail-strip button[aria-pressed="true"] { background: var(--accent-fill); border-color: var(--accent-fill); color: #fff; }
/* 窄屏只保留分类条，左栏整块收起来，避免同一组入口出现两遍 */
.rail-box, .rail-all { display: none; }

/* 分区标题 */
.main { margin-top: 10px; min-width: 0; }
.sec-title {
  display: flex; align-items: flex-end; gap: 10px; flex-wrap: wrap;
  border-bottom: 2px solid var(--accent); color: var(--accent-deep);
  font-size: 20px; font-weight: 700; padding-bottom: 10px; margin: 4px 0 16px;
}
.sec-title .meta { margin-left: auto; font-size: 12px; font-weight: 400; color: var(--muted); line-height: 1.5; }

/* 推荐条 */
.rcmd { display: grid; grid-template-columns: 1fr; border: 1px solid var(--line-3); background: var(--surface-2); margin-bottom: 18px; }
.rcmd-item { display: flex; align-items: center; gap: 11px; padding: 11px 14px; border-top: 1px solid var(--line); }
.rcmd-item:first-child { border-top: 0; }
.rcmd-item:hover { background: var(--tint); }
.rcmd-ico {
  width: 46px; height: 46px; flex: none; border-radius: var(--r-thumb);
  border: 1px solid var(--line); background: #fff;
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--accent-deep); font-size: 19px; font-weight: 700;
}
.rcmd-item.vip .rcmd-ico { color: var(--orange); }
.rcmd-item.coin .rcmd-ico { color: var(--tag-green); }
.rcmd-item.cash .rcmd-ico { color: var(--accent-deep); }
.rcmd-meta b { display: block; font-size: 14px; color: var(--ink-2); }
.rcmd-item:hover .rcmd-meta b { color: var(--accent-deep); }
.rcmd-meta span { display: block; font-size: 12px; color: var(--orange); }

/* 板块卡 */
.cards { display: grid; grid-template-columns: 1fr; gap: 14px; margin-bottom: 6px; }
.bcard {
  display: flex; gap: 13px; padding: 13px; background: #fff;
  border: 1px solid var(--line); border-radius: var(--r-card);
  box-shadow: var(--shadow-card);
  transition: border-color .3s var(--ease-img), box-shadow .3s var(--ease-img);
}
.bcard:hover { border-color: var(--accent); box-shadow: var(--shadow-lift); }
.bcard[hidden] { display: none; }
.bcard-pic {
  width: 60px; height: 60px; flex: none; border-radius: var(--r-thumb);
  border: 1px solid var(--line); background: var(--tint);
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--accent-deep); font-size: 22px; font-weight: 700;
  transition: transform .3s var(--ease-img), box-shadow .3s var(--ease-img);
}
.bcard:hover .bcard-pic { transform: scale(1.04); box-shadow: 0 2px 8px rgba(0, 0, 0, .08); }
.bcard-body { min-width: 0; flex: 1 1 auto; }
.bcard-name { display: flex; align-items: baseline; gap: 7px; flex-wrap: wrap; font-size: 16px; color: var(--ink-2); font-weight: 700; }
.bcard-name em { font-style: normal; font-size: 12px; font-weight: 400; color: var(--muted); }
.bcard-desc { font-size: 13px; color: var(--muted); margin-top: 5px; }
.bcard-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 7px; font-size: 12px; }
.bcard-tags a { color: var(--tag-green); }
.bcard-tags a:hover { color: var(--accent-deep); text-decoration: underline; }
.bcard-tags span { color: var(--muted); }

/* 栏头块（内页） */
.bm { background: #fff; border: 1px solid var(--line); border-radius: var(--r-card); margin-bottom: 14px; overflow: hidden; }
.bm-h {
  display: flex; align-items: center; gap: 8px; padding: 0 16px; min-height: 44px;
  background: #fff; border-bottom: 1px solid var(--line-2);
}
.bm-h h2 { font-size: 16px; }
.bm-h .more { margin-left: auto; font-size: 12px; color: var(--muted); }
.bm-c { padding: 13px 16px; }
.bm-c > p + p { margin-top: 8px; }

/* 表格 */
.scroll-x { overflow-x: auto; -webkit-overflow-scrolling: touch; border: 1px solid var(--line); border-radius: var(--r-card); background: #fff; }
table { width: 100%; min-width: 540px; border-collapse: collapse; }
caption { caption-side: top; text-align: left; padding: 9px 12px 0; font-size: 12px; color: var(--muted); }
th, td { padding: 10px 12px; text-align: left; vertical-align: top; font-size: 14px; border-bottom: 1px solid var(--line-2); }
thead th { background: #F8F9FA; font-size: 13px; font-weight: 700; color: var(--ink); white-space: nowrap; }
tbody tr:last-child td { border-bottom: 0; }
td:first-child { font-weight: 700; color: var(--ink); white-space: nowrap; }

/* 正文 */
.block { margin-bottom: 16px; }
.block h2 { margin-bottom: 8px; }
.block h3 { margin: 13px 0 5px; }
.block p { color: var(--ink-2); margin-bottom: 8px; }
.block ul, .block ol { color: var(--ink-2); margin-bottom: 8px; }
.block li { margin-bottom: 5px; }
.block li b { color: var(--ink); }
.callout { background: var(--tint); border: 1px solid #DCE6B8; border-radius: var(--r-card); padding: 11px 13px; margin: 10px 0; font-size: 14px; color: var(--ink-2); }
.steps { counter-reset: step; display: grid; gap: 8px; padding: 0; list-style: none; margin: 0; }
.steps li {
  counter-increment: step; position: relative; background: #fff;
  border: 1px solid var(--line); border-radius: var(--r-card);
  padding: 11px 13px 11px 42px; font-size: 14px; color: var(--ink-2);
}
.steps li::before {
  content: counter(step); position: absolute; left: 11px; top: 11px;
  width: 21px; height: 21px; border-radius: 50%; background: var(--accent-fill); color: #fff;
  display: inline-flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 700;
}
.steps li b { display: block; color: var(--ink); margin-bottom: 1px; }

details.faq { background: #fff; border: 1px solid var(--line); border-radius: var(--r-card); padding: 11px 13px; margin-bottom: 8px; box-shadow: var(--shadow-card); }
details.faq summary { cursor: pointer; font-size: 15px; font-weight: 700; color: var(--ink); list-style: none; display: flex; justify-content: space-between; gap: 10px; align-items: flex-start; }
details.faq summary::-webkit-details-marker { display: none; }
details.faq summary::after { content: "\25BE"; color: var(--accent-deep); flex: none; }
details.faq[open] summary::after { content: "\25B4"; }
details.faq p { margin-top: 7px; font-size: 14px; color: var(--ink-2); }
details.faq p + p { margin-top: 6px; }

.jump { display: grid; gap: 8px; }
.jump a { display: block; background: #fff; border: 1px solid var(--line); border-radius: var(--r-card); padding: 11px 12px; box-shadow: var(--shadow-card); }
.jump a:hover { border-color: var(--accent); }
.jump b { display: block; font-size: 14px; color: var(--ink); }
.jump span { font-size: 12px; color: var(--muted); }

.entry { background: #fff; border: 1px solid var(--line); border-radius: var(--r-card); padding: 12px 13px; margin-bottom: 8px; box-shadow: var(--shadow-card); }
.entry h3 { display: flex; align-items: baseline; gap: 7px; flex-wrap: wrap; font-size: 15px; }
.entry h3 em { font-style: normal; font-size: 11px; font-weight: 700; color: var(--accent-deep); background: var(--tint); border-radius: var(--r-tag); padding: 2px 6px; }
.entry p { font-size: 14px; color: var(--ink-2); margin-top: 4px; }

/* 面包屑与页首 */
.crumbs { display: flex; align-items: center; gap: 6px; font-size: 13px; color: var(--muted); padding: 12px 0 8px; flex-wrap: wrap; }
.crumbs a { color: var(--muted); }
.crumbs a:hover { color: var(--accent-deep); }
.crumbs .sep { color: #C4C8CE; }
.page-h1 { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; margin-bottom: 8px; }
.page-h1 .cnt { font-size: 12px; color: var(--muted); }
.lede { font-size: 14px; color: var(--muted); line-height: 1.75; margin-bottom: 12px; }

/* 页脚 */
.ft { margin-top: 18px; background: #fff; border-top: 1px solid var(--line); }
.ft .in { width: 100%; max-width: var(--container); margin: 0 auto; padding: 16px 12px 20px; }
.ft-brand { display: flex; align-items: center; gap: 8px; margin-bottom: 10px; }
.ft-brand .logo-text { font-size: 17px; }
.ft-brand a { font-size: 15px; font-weight: 700; color: var(--ink); }
.ft-brand a:hover { color: var(--accent-deep); }
.ft-cols { display: grid; gap: 14px; margin-bottom: 12px; }
.ft-col h2 { font-size: 13px; color: var(--muted); font-weight: 400; margin-bottom: 4px; }
.ft-col a { display: block; font-size: 13px; color: var(--ink-2); padding: 3px 0; }
.ft-col a:hover { color: var(--accent-deep); }
.ft-bar { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; font-size: 13px; color: var(--muted); border-top: 1px solid var(--line-2); padding-top: 10px; }
.ft-bar .pipe { color: #CDD2D8; }
.ft-note { font-size: 13px; color: var(--ink-2); margin-top: 8px; }
.ft-copy { font-size: 12px; color: var(--muted); margin-top: 4px; }

/* 侧边回顶 */
.to-top {
  position: fixed; right: 14px; bottom: calc(var(--cta-space) + 10px); z-index: 70;
  width: 40px; height: 40px; border-radius: var(--r-card); border: 1px solid var(--line);
  display: inline-flex; align-items: center; justify-content: center;
  background: #fff; color: var(--ink-2); cursor: pointer; box-shadow: var(--shadow-card);
}
.to-top:hover { color: var(--accent-deep); border-color: var(--accent); background: var(--tint); }
.to-top[hidden] { display: none; }

/* 唯一寻芳 CTA */
.site-cta {
  position: fixed; left: 50%; bottom: 20px; transform: translateX(-50%); z-index: 80;
  display: flex; align-items: center; justify-content: center;
  width: min(500px, calc(100% - 32px)); min-height: 56px; padding: 0 22px;
  border-radius: var(--r-pill); background: var(--accent-fill); color: #fff;
  font-size: 17px; font-weight: 800; letter-spacing: .01em; text-align: center;
  box-shadow: 0 8px 22px rgba(107, 126, 0, .32), 0 2px 6px rgba(0, 0, 0, .12);
  overflow: hidden; transition: background-color .25s var(--ease);
}
.site-cta:hover, .site-cta:focus-visible { background: var(--accent-fill-hover); color: #fff; }
.site-cta:active { background: var(--accent-fill-hover); }
.site-cta .cta-text { position: relative; z-index: 2; }
.site-cta::before {
  content: ""; position: absolute; inset: -14% -8%;
  background: radial-gradient(72% 130% at 16% 50%, rgba(60, 74, 0, .26) 0%, rgba(60, 74, 0, .12) 46%, rgba(60, 74, 0, 0) 76%);
  opacity: 0; transform: scaleX(.96);
  animation: cta-brush 3s cubic-bezier(.2, .7, .3, 1) infinite;
  z-index: 0; pointer-events: none;
}
.site-cta::after {
  content: ""; position: absolute; left: 17%; right: 17%; bottom: 9px; height: 2px;
  background: rgba(255, 255, 255, .78); border-radius: 2px;
  transform: scaleX(0); transform-origin: center;
  animation: cta-plate 3s cubic-bezier(.2, .7, .3, 1) infinite;
  z-index: 1; pointer-events: none;
}
@keyframes cta-brush {
  0%, 50% { opacity: 0; transform: scaleX(.96); }
  66% { opacity: 1; transform: scaleX(1.02); }
  88%, 100% { opacity: 0; transform: scaleX(1.06); }
}
@keyframes cta-plate {
  0%, 58% { transform: scaleX(0); opacity: 0; }
  66% { opacity: 1; }
  84% { transform: scaleX(1); }
  93%, 100% { transform: scaleX(1); opacity: 0; }
}

/* 跳转进度条 */
.route-bar {
  position: fixed; top: 0; left: 0; right: 0; height: 2px; z-index: 130;
  background: linear-gradient(90deg, #A8C500, #D6E76B, #A8C500);
  background-size: 200% 100%; animation: route-run .9s ease-in-out infinite;
}
.route-bar[hidden] { display: none; }
@keyframes route-run { 0% { background-position: 100% 0; } 100% { background-position: 0 0; } }

.sr-only { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.narrow { max-width: 820px; }

/* 平板 */
@media (min-width: 640px) {
  .wrap, .shell, .zz-head .row1, .nv .in, .topbar .in { padding-left: 16px; padding-right: 16px; }
  .rcmd { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .rcmd-item:nth-child(2) { border-top: 0; }
  .rcmd-item:nth-child(n+3) { border-top: 1px solid var(--line); }
  .cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .jump { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ft-cols { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ft .in { padding-left: 16px; padding-right: 16px; }
}
@media (min-width: 960px) {
  .head-search { display: block; }
  .jump { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .ft-cols { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .rcmd { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .rcmd-item { border-top: 0; border-left: 1px solid #E8E8E8; }
  .rcmd-item:first-child { border-left: 0; }
  .rcmd-ico { width: 52px; height: 52px; font-size: 21px; }
  h1 { font-size: 28px; }
  .sec-title { font-size: 20px; }
}
/* 桌面双栏 */
@media (min-width: 1200px) {
  .shell { display: flex; gap: var(--gap); align-items: flex-start; }
  .rail { width: var(--rail); flex: none; }
  .rail-strip { display: none; }
  .rail-box, .rail-all { display: block; }
  .main { flex: 1 1 auto; }
  .burger { display: none; }
}

/* 移动端 CTA 锚定 */
@media (max-width: 767px) {
  .site-cta {
    left: 14px; right: 14px; transform: none; width: auto;
    bottom: calc(12px + env(safe-area-inset-bottom, 0px));
    font-size: 15px; min-height: 56px;
  }
}

/* reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important; animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  .site-cta::before { animation: none; opacity: .15; transform: scaleX(1); }
  .site-cta::after { animation: none; transform: scaleX(1); opacity: .62; }
  .drawer-panel { animation: none; }
  .route-bar { animation: none; }
  .bcard:hover .bcard-pic { transform: none; }
}