/* ==========================================================================
   文旅中国 · 创展杯 —— 中国文旅 IP 创变大赛 平台
   视觉系统：与中传创展官网同源（红 #c8262c / 金 #b89355）
   ========================================================================== */

:root {
  /* 品牌色 */
  --red: #c8262c;
  --red-deep: #9a1a20;
  --red-dark: #6f1116;
  --red-tint: #fbeceb;
  --gold: #b89355;
  --gold-tint: #f6efe0;
  --gold-deep: #8a6a34;

  /* 中性 */
  --ink: #14171d;
  --ink-2: #2c313b;
  --ink-3: #4d545f;
  --muted: #767d8a;
  --line: #e5e0d8;
  --line-soft: #efebe4;
  --paper: #fbf9f6;
  --paper-2: #f4f1eb;
  --white: #ffffff;

  /* 状态色 */
  --ok: #1f8a4c;
  --ok-tint: #e8f5ec;
  --warn: #c07a12;
  --warn-tint: #fbf2e2;
  --info: #2a5fa8;
  --info-tint: #e9f0fa;

  /* 赛道色 */
  --t1: #b03a2e;   /* 非遗焕新 */
  --t2: #2a5fa8;   /* 文旅AI */
  --t3: #1f8a4c;   /* 城市好物 */
  --t4: #8a6a34;   /* 青少年 */

  /* 尺寸 */
  --w: 1200px;
  --r-sm: 6px;
  --r: 12px;
  --r-lg: 20px;
  --header-h: 68px;

  --shadow-sm: 0 1px 2px rgba(20,23,29,.05), 0 4px 14px rgba(20,23,29,.04);
  --shadow: 0 2px 6px rgba(20,23,29,.06), 0 16px 40px rgba(20,23,29,.07);
  --shadow-lg: 0 8px 24px rgba(20,23,29,.09), 0 32px 72px rgba(20,23,29,.10);

  --font: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Source Han Sans SC",
          "Noto Sans SC", "Hiragino Sans GB", system-ui, -apple-system, sans-serif;
  --font-num: "DIN Alternate", "Bebas Neue", "PingFang SC", system-ui, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0; font-family: var(--font); font-size: 15.5px; line-height: 1.72;
  color: var(--ink-2); background: var(--paper);
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }
h1, h2, h3, h4, h5 { margin: 0; color: var(--ink); font-weight: 700; line-height: 1.25; letter-spacing: -.01em; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
table { border-collapse: collapse; width: 100%; }
:focus-visible { outline: 2px solid var(--red); outline-offset: 2px; border-radius: 3px; }

/* ---------- Layout ---------- */
.wrap { width: 100%; max-width: var(--w); margin: 0 auto; padding: 0 24px; }
section { padding: 84px 0; }
section.tight { padding: 56px 0; }
.bg-paper { background: var(--paper); }
.bg-white { background: var(--white); }
.bg-ink { background: var(--ink); color: #c9cdd6; }
.bg-ink h1, .bg-ink h2, .bg-ink h3 { color: #fff; }

/* ---------- Type ---------- */
.eyebrow { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 600;
  letter-spacing: .16em; color: var(--red); text-transform: uppercase; }
.eyebrow::before { content: ""; width: 26px; height: 2px; background: var(--red); }
.bg-ink .eyebrow { color: var(--gold); } .bg-ink .eyebrow::before { background: var(--gold); }
.h-hero { font-size: clamp(30px, 4.2vw, 50px); line-height: 1.16; letter-spacing: -.02em; }
.h1 { font-size: clamp(25px, 3vw, 36px); }
.h2 { font-size: clamp(21px, 2.2vw, 27px); }
.h3 { font-size: 18px; }
.lead { font-size: clamp(15.5px, 1.3vw, 18px); color: var(--ink-3); line-height: 1.85; }
.bg-ink .lead { color: #b9bfca; }
.muted { color: var(--muted); }
.small { font-size: 13.5px; } .tiny { font-size: 12px; }
.center { text-align: center; }
.strong { font-weight: 600; color: var(--ink); }
.num { font-family: var(--font-num); font-variant-numeric: tabular-nums; }
.sec-head { max-width: 780px; margin-bottom: 44px; }
.sec-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.sec-head .h1 { margin: 16px 0 14px; }

/* ---------- Header ---------- */
.site-header { position: sticky; top: 0; z-index: 90; height: var(--header-h);
  background: rgba(255,255,255,.9); backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--line-soft); }
.site-header.scrolled { box-shadow: 0 2px 20px rgba(20,23,29,.07); }
.site-header .inner { display: flex; align-items: center; gap: 22px; height: var(--header-h); }
.brand { display: flex; align-items: center; gap: 11px; flex-shrink: 0; }
.brand .mark { width: 38px; height: 38px; flex-shrink: 0; }
.brand .txt { display: flex; flex-direction: column; line-height: 1.18; }
.brand .name { font-size: 17px; font-weight: 800; color: var(--ink); letter-spacing: .02em; }
.brand .sub { font-size: 10.5px; color: var(--muted); letter-spacing: .04em; }
.nav { display: flex; align-items: center; gap: 2px; margin-left: auto; }
.nav a { position: relative; padding: 8px 13px; font-size: 14.5px; font-weight: 500; color: var(--ink-3);
  border-radius: var(--r-sm); transition: color .18s, background .18s; white-space: nowrap; }
.nav a:hover { color: var(--ink); background: var(--paper-2); }
.nav a.active { color: var(--red); font-weight: 600; }
.nav a.active::after { content: ""; position: absolute; left: 13px; right: 13px; bottom: -1px; height: 2px; background: var(--red); border-radius: 2px; }
.header-cta { display: flex; gap: 10px; flex-shrink: 0; }
.burger { display: none; background: none; border: 0; padding: 8px; cursor: pointer; }

/* ---------- Buttons ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 22px; border-radius: var(--r-sm); font-size: 14.5px; font-weight: 600;
  border: 1.5px solid transparent; cursor: pointer; transition: all .18s ease; white-space: nowrap; line-height: 1.2; }
.btn-primary { background: var(--red); color: #fff; border-color: var(--red); }
.btn-primary:hover { background: var(--red-deep); border-color: var(--red-deep); transform: translateY(-1px); box-shadow: 0 8px 20px rgba(200,38,44,.28); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--ink-3); background: var(--white); }
.btn-dark { background: var(--ink); color: #fff; border-color: var(--ink); }
.btn-dark:hover { background: #000; }
.btn-gold { background: var(--gold); color: #fff; border-color: var(--gold); }
.btn-gold:hover { background: var(--gold-deep); border-color: var(--gold-deep); }
.btn-white { background: #fff; color: var(--ink); border-color: #fff; }
.btn-white:hover { background: var(--paper-2); }
.btn-line-light { background: transparent; color: #fff; border-color: rgba(255,255,255,.4); }
.btn-line-light:hover { border-color: #fff; background: rgba(255,255,255,.08); }
.btn-sm { padding: 8px 15px; font-size: 13.5px; }
.btn-lg { padding: 14px 30px; font-size: 16px; }
.btn-block { width: 100%; }
.btn[disabled] { opacity: .5; cursor: not-allowed; transform: none !important; box-shadow: none !important; }

/* ---------- Chips / Badges ---------- */
.chip { display: inline-flex; align-items: center; gap: 6px; padding: 4px 11px; border-radius: 100px;
  font-size: 12.5px; font-weight: 600; background: var(--paper-2); color: var(--ink-3); border: 1px solid var(--line-soft); }
.chip.on { background: var(--ink); color: #fff; border-color: var(--ink); }
.chip.t1 { background: #f7e6e4; color: var(--t1); border-color: #f0d3cf; }
.chip.t2 { background: var(--info-tint); color: var(--t2); border-color: #d3e0f3; }
.chip.t3 { background: var(--ok-tint); color: var(--t3); border-color: #cbe6d5; }
.chip.t4 { background: var(--gold-tint); color: var(--t4); border-color: #ece0c6; }
.badge { display: inline-flex; align-items: center; gap: 5px; padding: 3px 9px; border-radius: 5px;
  font-size: 11.5px; font-weight: 700; letter-spacing: .02em; }
.badge-ok { background: var(--ok-tint); color: var(--ok); }
.badge-warn { background: var(--warn-tint); color: var(--warn); }
.badge-info { background: var(--info-tint); color: var(--info); }
.badge-red { background: var(--red-tint); color: var(--red); }
.badge-muted { background: var(--paper-2); color: var(--muted); }

/* ---------- Cards ---------- */
.card { background: var(--white); border: 1px solid var(--line-soft); border-radius: var(--r); box-shadow: var(--shadow-sm); }
.card-pad { padding: 24px; }
.grid { display: grid; gap: 20px; }
.g-2 { grid-template-columns: repeat(2, 1fr); }
.g-3 { grid-template-columns: repeat(3, 1fr); }
.g-4 { grid-template-columns: repeat(4, 1fr); }
.g-auto { grid-template-columns: repeat(auto-fill, minmax(268px, 1fr)); }

/* ---------- Hero ---------- */
.hero { position: relative; background: linear-gradient(155deg, #1a1d24 0%, #24282f 46%, #2f2325 100%); color: #cfd3db; overflow: hidden; }
.hero::before { content: ""; position: absolute; inset: 0;
  background: radial-gradient(760px 420px at 82% 8%, rgba(200,38,44,.30), transparent 62%),
              radial-gradient(620px 420px at 8% 100%, rgba(184,147,85,.20), transparent 60%); }
.hero .wrap { position: relative; z-index: 1; padding-top: 66px; padding-bottom: 60px; }
.hero .h-hero { color: #fff; }
.hero .lead { color: #b7bdc8; max-width: 640px; }
.hero-tag { display: inline-flex; align-items: center; gap: 9px; padding: 7px 15px; border-radius: 100px;
  background: rgba(255,255,255,.09); border: 1px solid rgba(255,255,255,.16); font-size: 13px; font-weight: 600; color: #fff; }
.hero-tag .dot { width: 7px; height: 7px; border-radius: 50%; background: #4ade80; box-shadow: 0 0 0 4px rgba(74,222,128,.22); }

/* ---------- Loop（商业闭环）---------- */
.loop { display: grid; grid-template-columns: repeat(6, 1fr); gap: 0; position: relative; }
.loop-step { position: relative; padding: 22px 16px; text-align: center; }
.loop-step .no { width: 40px; height: 40px; margin: 0 auto 12px; border-radius: 12px; display: grid; place-items: center;
  font-family: var(--font-num); font-weight: 700; font-size: 18px; color: #fff; background: var(--red); }
.loop-step:nth-child(5) .no, .loop-step:nth-child(6) .no { background: var(--gold); }
.loop-step h4 { font-size: 14.5px; margin-bottom: 6px; }
.loop-step p { font-size: 12.5px; color: var(--muted); line-height: 1.6; }
.loop-step:not(:last-child)::after { content: "→"; position: absolute; right: -7px; top: 40px; color: var(--line); font-size: 18px; font-weight: 700; }
.bg-ink .loop-step h4 { color: #fff; }
.bg-ink .loop-step p { color: #9aa1ad; }
.bg-ink .loop-step:not(:last-child)::after { color: #3a4049; }

/* ---------- Stats ---------- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line-soft);
  border: 1px solid var(--line-soft); border-radius: var(--r); overflow: hidden; }
.stat { background: var(--white); padding: 22px 20px; }
.stat .v { font-family: var(--font-num); font-size: 30px; font-weight: 700; color: var(--ink); line-height: 1.1; }
.stat .v small { font-size: 15px; font-weight: 600; color: var(--muted); margin-left: 3px; }
.stat .k { font-size: 13px; color: var(--muted); margin-top: 6px; }
.bg-ink .stat { background: #1c2027; }
.bg-ink .stat .v { color: #fff; }
.bg-ink .stat .k { color: #9aa1ad; }

/* ---------- Track / Work cards ---------- */
.track-card { background: var(--white); border: 1px solid var(--line-soft); border-radius: var(--r); padding: 26px; position: relative; overflow: hidden; transition: transform .2s, box-shadow .2s; }
.track-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.track-card .bar { position: absolute; left: 0; top: 0; bottom: 0; width: 4px; }
.track-card .no { font-family: var(--font-num); font-size: 13px; font-weight: 700; letter-spacing: .1em; }
.track-card h3 { margin: 10px 0 8px; font-size: 19px; }
.track-card .desc { font-size: 13.5px; color: var(--ink-3); line-height: 1.7; }
.track-card .tags { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 16px; }

.work-card { background: var(--white); border: 1px solid var(--line-soft); border-radius: var(--r); overflow: hidden;
  display: flex; flex-direction: column; transition: transform .2s, box-shadow .2s; }
.work-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.cover { position: relative; aspect-ratio: 4/3; display: grid; place-items: center; overflow: hidden; }
.cover .glyph { font-size: 46px; font-weight: 800; color: rgba(255,255,255,.9); letter-spacing: .04em; font-family: var(--font-num); text-shadow: 0 2px 12px rgba(0,0,0,.18); }
.cover .ribbon { position: absolute; top: 12px; left: 12px; }
.cover .lic { position: absolute; top: 12px; right: 12px; }
.work-body { padding: 16px 17px 18px; display: flex; flex-direction: column; flex: 1; }
.work-body h3 { font-size: 16px; margin-bottom: 6px; }
.work-body .by { font-size: 12.5px; color: var(--muted); }
.work-body .meta { display: flex; align-items: center; justify-content: space-between; margin-top: auto; padding-top: 14px; }
.work-body .price { font-family: var(--font-num); font-weight: 700; color: var(--red); font-size: 16px; }

/* ---------- Meters ---------- */
.meter { height: 7px; border-radius: 100px; background: var(--paper-2); overflow: hidden; }
.meter > i { display: block; height: 100%; border-radius: 100px; background: var(--red); }
.meter.gold > i { background: var(--gold); }
.score-row { display: grid; grid-template-columns: 92px 1fr 46px; gap: 12px; align-items: center; font-size: 13px; }
.score-row .n { font-family: var(--font-num); font-weight: 700; color: var(--ink); text-align: right; }

/* ---------- Timeline ---------- */
.timeline { position: relative; padding-left: 30px; }
.timeline::before { content: ""; position: absolute; left: 9px; top: 6px; bottom: 6px; width: 2px; background: var(--line); }
.tl-item { position: relative; padding: 0 0 26px; }
.tl-item::before { content: ""; position: absolute; left: -30px; top: 5px; width: 20px; height: 20px; border-radius: 50%;
  background: #fff; border: 3px solid var(--line); }
.tl-item.done::before { border-color: var(--ok); background: var(--ok); }
.tl-item.now::before { border-color: var(--red); background: var(--red); box-shadow: 0 0 0 5px var(--red-tint); }
.tl-item .d { font-family: var(--font-num); font-size: 12.5px; font-weight: 700; letter-spacing: .06em; color: var(--muted); }
.tl-item h4 { font-size: 15.5px; margin: 3px 0 4px; }
.tl-item p { font-size: 13px; color: var(--ink-3); }

/* ---------- Table ---------- */
.tbl-wrap { overflow-x: auto; border: 1px solid var(--line-soft); border-radius: var(--r); background: #fff; }
table.tbl { font-size: 13.5px; min-width: 640px; }
table.tbl th { text-align: left; padding: 12px 16px; background: var(--paper); color: var(--ink-3); font-weight: 600;
  font-size: 12.5px; letter-spacing: .03em; border-bottom: 1px solid var(--line-soft); white-space: nowrap; }
table.tbl td { padding: 13px 16px; border-bottom: 1px solid var(--line-soft); vertical-align: middle; }
table.tbl tr:last-child td { border-bottom: 0; }
table.tbl tr:hover td { background: var(--paper); }

/* ---------- Forms ---------- */
.field { margin-bottom: 18px; }
.field > label { display: block; font-size: 13.5px; font-weight: 600; color: var(--ink); margin-bottom: 7px; }
.field > label .req { color: var(--red); margin-left: 2px; }
.field .hint { font-size: 12px; color: var(--muted); margin-top: 6px; }
.input, .select, .textarea { width: 100%; padding: 11px 14px; border: 1.5px solid var(--line); border-radius: var(--r-sm);
  background: #fff; font-size: 14.5px; transition: border-color .18s, box-shadow .18s; }
.input:focus, .select:focus, .textarea:focus { outline: none; border-color: var(--red); box-shadow: 0 0 0 3px var(--red-tint); }
.textarea { min-height: 110px; resize: vertical; }
.select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%23767d8a' stroke-width='2.4' stroke-linecap='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 13px center; padding-right: 38px; }
.opts { display: grid; gap: 10px; }
.opt { display: flex; align-items: flex-start; gap: 11px; padding: 13px 15px; border: 1.5px solid var(--line);
  border-radius: var(--r-sm); cursor: pointer; transition: border-color .16s, background .16s; background: #fff; }
.opt:hover { border-color: var(--ink-3); }
.opt input { margin-top: 3px; accent-color: var(--red); width: 16px; height: 16px; flex-shrink: 0; }
.opt.sel { border-color: var(--red); background: var(--red-tint); }
.opt b { display: block; font-size: 14px; color: var(--ink); }
.opt em { font-style: normal; font-size: 12.5px; color: var(--muted); }
.steps { display: flex; gap: 8px; margin-bottom: 30px; }
.steps .s { flex: 1; padding: 11px 14px; border-radius: var(--r-sm); background: var(--paper-2); border: 1px solid var(--line-soft);
  font-size: 13px; color: var(--muted); font-weight: 600; }
.steps .s.on { background: var(--red-tint); border-color: #f0d3cf; color: var(--red); }
.steps .s b { font-family: var(--font-num); margin-right: 6px; }

/* ---------- Panels / Dash ---------- */
.dash { display: grid; grid-template-columns: 232px 1fr; gap: 26px; align-items: start; }
.side { background: #fff; border: 1px solid var(--line-soft); border-radius: var(--r); padding: 14px; position: sticky; top: calc(var(--header-h) + 16px); }
.side .who { display: flex; align-items: center; gap: 11px; padding: 8px 8px 14px; border-bottom: 1px solid var(--line-soft); margin-bottom: 10px; }
.side .who .av { width: 42px; height: 42px; border-radius: 50%; display: grid; place-items: center; color: #fff; font-weight: 700; background: var(--red); flex-shrink: 0; }
.side .who b { display: block; font-size: 14.5px; }
.side .who span { font-size: 12px; color: var(--muted); }
.side nav a { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 10px 12px;
  border-radius: var(--r-sm); font-size: 14px; color: var(--ink-3); font-weight: 500; }
.side nav a:hover { background: var(--paper-2); color: var(--ink); }
.side nav a.on { background: var(--ink); color: #fff; }
.side nav a .cnt { font-family: var(--font-num); font-size: 12px; background: rgba(0,0,0,.06); padding: 1px 8px; border-radius: 100px; }
.side nav a.on .cnt { background: rgba(255,255,255,.2); }
.panel { background: #fff; border: 1px solid var(--line-soft); border-radius: var(--r); padding: 26px; }
.panel + .panel { margin-top: 20px; }
.panel-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 20px; flex-wrap: wrap; }
.panel-head h3 { font-size: 18px; }
.kpi { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.kpi .c { background: #fff; border: 1px solid var(--line-soft); border-radius: var(--r); padding: 18px; }
.kpi .c .v { font-family: var(--font-num); font-size: 26px; font-weight: 700; color: var(--ink); }
.kpi .c .k { font-size: 12.5px; color: var(--muted); margin-top: 4px; }
.kpi .c .tr { font-size: 12px; margin-top: 6px; font-weight: 600; }
.tr.up { color: var(--red); } .tr.down { color: var(--ok); }

/* ---------- Modal / Toast ---------- */
.overlay { position: fixed; inset: 0; z-index: 200; background: rgba(20,23,29,.55); backdrop-filter: blur(3px);
  display: none; align-items: center; justify-content: center; padding: 24px; }
.overlay.on { display: flex; }
.modal { background: #fff; border-radius: var(--r-lg); max-width: 520px; width: 100%; max-height: 88vh; overflow: auto;
  box-shadow: var(--shadow-lg); animation: pop .2s ease; }
@keyframes pop { from { transform: translateY(10px) scale(.98); opacity: 0; } to { transform: none; opacity: 1; } }
.modal-head { padding: 22px 26px 0; display: flex; align-items: flex-start; justify-content: space-between; gap: 14px; }
.modal-head h3 { font-size: 19px; }
.modal-body { padding: 18px 26px; }
.modal-foot { padding: 0 26px 24px; display: flex; gap: 10px; }
.x-close { background: none; border: 0; font-size: 22px; line-height: 1; color: var(--muted); cursor: pointer; padding: 2px; }
.toast { position: fixed; left: 50%; bottom: 34px; transform: translateX(-50%) translateY(20px); z-index: 300;
  background: var(--ink); color: #fff; padding: 12px 22px; border-radius: 100px; font-size: 14px; font-weight: 500;
  box-shadow: var(--shadow-lg); opacity: 0; pointer-events: none; transition: all .28s ease; }
.toast.on { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast.ok { background: var(--ok); }
.toast.warn { background: var(--warn); }

/* ---------- Filters ---------- */
.filters { display: flex; flex-wrap: wrap; gap: 18px; align-items: flex-end; margin-bottom: 26px;
  background: #fff; border: 1px solid var(--line-soft); border-radius: var(--r); padding: 18px 20px; }
.filters .f { display: flex; flex-direction: column; gap: 6px; }
.filters .f label { font-size: 12px; font-weight: 600; color: var(--muted); letter-spacing: .04em; }
.filters .grow { flex: 1; min-width: 200px; }

/* ---------- Footer ---------- */
.site-footer { background: var(--ink); color: #97a0ad; padding: 54px 0 30px; margin-top: 0; }
.site-footer .top { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 34px; }
.site-footer .brand .name { color: #fff; }
.site-footer .brand .sub { color: #8b93a0; }
.site-footer p { font-size: 13px; line-height: 1.8; margin-top: 14px; max-width: 380px; }
.site-footer h5 { color: #fff; font-size: 13.5px; margin-bottom: 14px; letter-spacing: .03em; }
.site-footer li { margin-bottom: 9px; font-size: 13px; }
.site-footer li a:hover { color: #fff; }
.site-footer .bot { margin-top: 40px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.09);
  display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap; font-size: 12.5px; }

/* ---------- Utility ---------- */
.row { display: flex; gap: 12px; align-items: center; }
.row.wrap { flex-wrap: wrap; }
.between { justify-content: space-between; }
.mt0 { margin-top: 0; } .mt8 { margin-top: 8px; } .mt16 { margin-top: 16px; } .mt24 { margin-top: 24px; } .mt40 { margin-top: 40px; }
.mb0 { margin-bottom: 0; } .mb16 { margin-bottom: 16px; } .mb24 { margin-bottom: 24px; }
.hidden { display: none !important; }
.demo-flag { display: inline-flex; align-items: center; gap: 7px; font-size: 12px; color: var(--warn);
  background: var(--warn-tint); border: 1px solid #f0dcb8; padding: 5px 12px; border-radius: 100px; font-weight: 600; }
.divider { height: 1px; background: var(--line-soft); margin: 26px 0; }
.link-red { color: var(--red); font-weight: 600; }
.link-red:hover { text-decoration: underline; }
.empty { text-align: center; padding: 60px 20px; color: var(--muted); }
.empty .ic { font-size: 40px; margin-bottom: 12px; opacity: .5; }

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .nav { display: none; }
  .burger { display: block; margin-left: auto; }
  .header-cta { display: none; }
  .g-4, .g-3 { grid-template-columns: repeat(2, 1fr); }
  .stats, .kpi { grid-template-columns: repeat(2, 1fr); }
  .loop { grid-template-columns: repeat(3, 1fr); gap: 6px; }
  .loop-step:not(:last-child)::after { display: none; }
  .dash { grid-template-columns: 1fr; }
  .side { position: static; }
  .site-footer .top { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  section { padding: 56px 0; }
  .g-2, .g-3, .g-4 { grid-template-columns: 1fr; }
  .stats, .kpi { grid-template-columns: 1fr 1fr; }
  .loop { grid-template-columns: repeat(2, 1fr); }
  .site-footer .top { grid-template-columns: 1fr; }
  .wrap { padding: 0 18px; }
}
@media (prefers-reduced-motion: reduce) { * { animation: none !important; transition: none !important; } }

/* 移动端抽屉菜单 */
.nav.open { display: flex; flex-direction: column; position: absolute; left: 0; right: 0; top: var(--header-h);
  background: #fff; padding: 14px 20px 20px; border-bottom: 1px solid var(--line-soft); box-shadow: var(--shadow); gap: 2px; }
.nav.open a { padding: 12px 10px; font-size: 16px; }
.nav.open a.active::after { display: none; }