/* =========================================================
   味醢 · 西府食品旗下川味复合调味品牌站（mendiet.cn）
   美学：宋韵留白 · 雅（醢白 · Song Negative）
   定位：传统正宗的川味复合调味
   纯静态，无构建依赖
   ========================================================= */

:root {
  /* —— 色：宣纸 / 墨 / 藤椒绿 / 酱红 —— */
  --bg:        #F7F4EF;
  --bg-alt:    #F1ECE3;
  --surface:   #FFFFFF;
  --ink:       #141413;
  --ink-soft:  #423D36;
  --muted:     #8A8175;
  --line:      #E4DDD1;
  --brand:     #3A5A47;
  --brand-deep:#2A4536;
  --brand-soft:#E7EEE9;
  --accent:    #9E3B2E;
  --accent-soft:#F3E4DC;
  --seal:      #9E3B2E;

  /* —— 字体：衬线为骨，无衬线为用 —— */
  --serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STSong", "SimSun", serif;
  --sans:  "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Hiragino Sans GB", system-ui, sans-serif;

  --maxw:     1180px;
  --gap:      28px;
  --radius:   16px;
  --radius-sm:10px;
  --shadow:   0 14px 40px -22px rgba(20,20,19,.30);
  --shadow-sm:0 6px 18px -12px rgba(20,20,19,.28);
  --ease:     cubic-bezier(.22,.61,.36,1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--ink-soft);
  line-height: 1.85;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 28px; }

/* ============== 排版 ============== */
h1,h2,h3,h4 { color: var(--ink); font-weight: 700; line-height: 1.25; letter-spacing: .01em; }
.display { font-family: var(--serif); font-size: clamp(38px, 5.8vw, 68px); font-weight: 700; line-height: 1.14; letter-spacing: .01em; }
.h2  { font-family: var(--serif); font-size: clamp(28px, 3.6vw, 44px); }
.h3  { font-family: var(--serif); font-size: clamp(19px, 2.1vw, 24px); }
.lead { font-size: clamp(16px, 1.55vw, 19px); color: var(--ink-soft); }
.muted { color: var(--muted); }
.center { text-align: center; }

.eyebrow {
  display: inline-block;
  font-family: var(--serif);
  font-size: 13px; letter-spacing: .32em;
  color: var(--brand); font-weight: 600; margin-bottom: 18px;
}
.eyebrow::before { content: ""; display: inline-block; width: 24px; height: 1px; background: var(--brand); vertical-align: middle; margin-right: 12px; }

.silk { border: 0; border-top: 1px solid var(--line); margin: 56px 0; }

/* ============== 印章 ============== */
.seal {
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--seal); color: #fff; font-family: var(--serif);
  border-radius: 6px; padding: 12px 10px;
  font-size: 22px; font-weight: 700; letter-spacing: .04em;
  transform: rotate(-4deg);
}
.seal-lg { font-size: 30px; padding: 16px 14px; }
.seal-sm { font-size: 16px; padding: 8px 6px; }

/* ============== 按钮 ============== */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 30px; border-radius: 999px; font-weight: 600; font-size: 15px;
  transition: transform .25s var(--ease), background .25s var(--ease), color .25s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease);
  cursor: pointer; border: 1px solid transparent; white-space: nowrap;
  font-family: var(--sans);
}
.btn-primary { background: var(--ink); color: #fff; }
.btn-primary:hover { background: var(--brand); transform: translateY(-2px); box-shadow: var(--shadow); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--brand); color: var(--brand); }
.btn-accent { background: var(--accent); color: #fff; }
.btn-accent:hover { filter: brightness(1.05); transform: translateY(-2px); box-shadow: var(--shadow); }

/* ============== 导航 ============== */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(247,244,239,.86);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s var(--ease), background .3s var(--ease);
}
.site-header.scrolled { border-color: var(--line); background: rgba(247,244,239,.95); }
.nav { display: flex; align-items: center; justify-content: space-between; height: 76px; }
.brand-mark { display: flex; align-items: baseline; gap: 12px; }
.brand-mark .logo { font-family: var(--serif); font-size: 26px; font-weight: 700; color: var(--ink); letter-spacing: .06em; }
.brand-mark .logo b { color: var(--brand); font-weight: 700; }
.brand-mark .sub { font-size: 12px; color: var(--muted); letter-spacing: .10em; }

.nav-links { display: flex; align-items: center; gap: 34px; list-style: none; }
.nav-links a { font-size: 15px; color: var(--ink-soft); position: relative; padding: 6px 0; transition: color .2s; }
.nav-links a::after { content: ""; position: absolute; left: 0; bottom: 0; width: 0; height: 1px; background: var(--brand); transition: width .3s var(--ease); }
.nav-links a:hover, .nav-links a.active { color: var(--ink); }
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
.nav-cta { display: flex; align-items: center; gap: 14px; }

.nav-toggle { display: none; background: none; border: none; cursor: pointer; width: 40px; height: 40px; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--ink); margin: 5px auto; transition: .3s var(--ease); }

/* ============== Hero ============== */
.hero { position: relative; overflow: hidden; }
.hero-inner { padding: clamp(72px, 10vw, 140px) 0 clamp(60px, 7vw, 100px); }
.hero .display { max-width: 16ch; }
.hero .lead { max-width: 48ch; margin-top: 26px; }
.hero-actions { display: flex; gap: 16px; margin-top: 38px; flex-wrap: wrap; align-items: center; }
.hero-glow { position: absolute; right: -10%; top: -20%; width: 60%; height: 140%; background: radial-gradient(circle at 70% 30%, var(--brand-soft), transparent 60%); pointer-events: none; opacity: .9; }

.hero-oriental { display: grid; grid-template-columns: 1.3fr 1fr auto; gap: 48px; align-items: center; }
.hero-meta { display: flex; flex-direction: row; align-items: center; gap: 16px; }
.hero-quote { display: flex; flex-direction: column; gap: 4px; border-left: 1px solid var(--line); padding-left: 18px; }
.hero-quote .hq-line { font-family: var(--serif); font-size: 17px; color: var(--ink); letter-spacing: .3em; font-weight: 600; line-height: 1.2; }
.hero-quote .hq-line.hq-line-sub { font-size: 13px; color: var(--muted); letter-spacing: .3em; font-weight: 500; }
.hero-fig { width: 100%; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); background: var(--brand-soft); aspect-ratio: 4/5; }
.hero-fig img { width: 100%; height: 100%; object-fit: cover; }

/* 横排题字：味醢印章 + 食饮思源 / 调味见心 */

/* ============== 数据条 ============== */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.stat { background: var(--surface); padding: 30px 22px; text-align: center; }
.stat .num { font-family: var(--serif); font-size: clamp(28px, 3.2vw, 40px); color: var(--brand); font-weight: 700; }
.stat .label { font-size: 13px; color: var(--muted); margin-top: 8px; letter-spacing: .06em; }

/* ============== 区块 ============== */
section { padding: clamp(64px, 8vw, 112px) 0; }
.section-head { max-width: 60ch; margin-bottom: 56px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head .h2 { margin-top: 8px; }
.section-head p { margin-top: 16px; color: var(--ink-soft); }

/* ============== 三幕 ============== */
.act { position: relative; padding: clamp(80px, 11vw, 150px) 0; }
.act + .act { border-top: 1px solid var(--line); }
.act.alt { background: var(--bg-alt); }
.act-head { display: grid; grid-template-columns: 120px 1fr; gap: 28px; align-items: start; margin-bottom: 56px; }
.act-numeral { font-family: var(--serif); font-size: clamp(56px, 7vw, 96px); color: var(--line); line-height: 1; font-weight: 700; letter-spacing: .02em; }
.act-numeral .cn { display: block; font-size: 14px; color: var(--muted); letter-spacing: .4em; margin-top: 12px; font-weight: 500; }
.act-title .eyebrow { margin-bottom: 10px; }
.act-title .h2 { font-family: var(--serif); }
.act-title p { margin-top: 14px; color: var(--ink-soft); max-width: 50ch; }

.act-scene { display: grid; grid-template-columns: 1.3fr 1fr; gap: var(--gap); align-items: stretch; }
.act-scene .figure { border-radius: var(--radius); overflow: hidden; background: var(--brand-soft); aspect-ratio: 4/3; }
.act-scene .figure img { width: 100%; height: 100%; object-fit: cover; }
.act-scene .text { padding: 8px 0; }
.act-scene .text h3 { font-family: var(--serif); font-size: clamp(22px, 2.4vw, 30px); margin-bottom: 14px; }
.act-scene .text p  { color: var(--ink-soft); }
.act-scene .text .cite { margin-top: 18px; font-size: 14px; color: var(--muted); font-family: var(--serif); }

.act-quote { text-align: center; max-width: 720px; margin: 0 auto; }
.act-quote .seal { margin-bottom: 26px; }
.act-quote p { font-family: var(--serif); font-size: clamp(22px, 2.6vw, 32px); color: var(--ink); line-height: 1.6; }
.act-quote .by { margin-top: 18px; font-size: 13px; color: var(--muted); letter-spacing: .2em; }

.series-rail { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gap); }
.series-card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 32px 28px; transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
  display: flex; flex-direction: column; gap: 14px; min-height: 220px;
}
.series-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: transparent; }
.series-card .no { font-family: var(--serif); font-size: 16px; color: var(--brand); letter-spacing: .2em; }
.series-card h3 { font-family: var(--serif); font-size: 24px; }
.series-card .hint { font-size: 14px; color: var(--muted); }
.series-card .more { margin-top: auto; font-size: 14px; color: var(--brand); font-weight: 600; }
.series-card.active { border-color: var(--brand); background: var(--brand-soft); cursor: default; }
.series-card.active:hover { transform: none; box-shadow: none; }
.series-card.active .no { color: var(--accent); }
.series-card.active .more { color: var(--muted); font-weight: 500; }

/* ============== 系列标签导航（详情页：置于产品列表上方） ============== */
.series-nav-wrap { padding: 4px 0 8px; border-bottom: 1px solid var(--line); background: var(--surface); }
.series-nav { display: flex; flex-wrap: wrap; gap: 10px; }
.chip {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--sans); font-size: 14px; line-height: 1;
  color: var(--ink-soft); text-decoration: none;
  padding: 9px 16px; border: 1px solid var(--line); border-radius: 999px;
  background: var(--bg-alt); white-space: nowrap;
  transition: all .2s var(--ease);
}
.chip:hover { border-color: var(--brand); color: var(--brand); transform: translateY(-2px); }
.chip.active {
  color: #fff; background: var(--brand); border-color: var(--brand);
  font-weight: 600; cursor: default;
}

/* ============== 系列详情页 banner ============== */
.series-banner { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); background: var(--brand-soft); aspect-ratio: 16/9; margin-bottom: 30px; }
.series-banner img { width: 100%; height: 100%; object-fit: cover; }

/* ============== 纹理分隔带（通用配图） ============== */
.texture-divider { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); background: var(--brand-soft); aspect-ratio: 16/9; margin: 8px 0 4px; }
.texture-divider img { width: 100%; height: 100%; object-fit: cover; }

/* ============== 系列总览瓦片（products.html） ============== */
.series-tiles { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gap); }
.series-tile {
  display: flex; flex-direction: column; overflow: hidden; padding: 0;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  text-decoration: none; color: inherit;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease);
}
.series-tile:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: transparent; }
.series-tile .thumb { aspect-ratio: 4/3; display: flex; align-items: center; justify-content: center; overflow: hidden; background: var(--bg-alt); }
.series-tile .thumb img { width: 100%; height: 100%; object-fit: cover; }
.series-tile .thumb.tint-jar     { background: linear-gradient(135deg, #F0EADF, #E6DBC8); }
.series-tile .thumb.tint-oil     { background: linear-gradient(135deg, #EAF0E6, #DCE8DA); }
.series-tile .thumb.tint-sauce   { background: linear-gradient(135deg, var(--accent-soft), #ecd9cf); }
.series-tile .thumb.tint-coming  { background: linear-gradient(135deg, #EFE9DD, #E2D8C4); }
.series-tile .thumb.tint-instant { background: linear-gradient(135deg, #E9EEF0, #D9E2E6); }
.series-tile .thumb.tint-meat    { background: linear-gradient(135deg, #F2E4D7, #E5CFB8); }
.series-tile .tile-body { padding: 20px 22px 24px; display: flex; flex-direction: column; gap: 6px; flex: 1; }
.series-tile .no { font-family: var(--serif); font-size: 13px; color: var(--brand); letter-spacing: .25em; }
.series-tile h3 { font-family: var(--serif); font-size: 22px; }
.series-tile .cnt { font-size: 13px; color: var(--muted); }
.series-tile .more { margin-top: auto; padding-top: 12px; font-size: 14px; color: var(--brand); font-weight: 600; }

/* ============== 面包屑（详情页） ============== */
.crumb { font-size: 13px; color: var(--muted); margin-bottom: 14px; letter-spacing: .04em; }
.crumb a { color: var(--brand); text-decoration: none; }
.crumb a:hover { text-decoration: underline; }

.principles { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gap); margin-top: 56px; }
.principle { text-align: center; padding: 20px; }
.principle .ico {
  width: 64px; height: 64px; margin: 0 auto 18px; border-radius: 50%;
  background: var(--bg); border: 1px solid var(--line);
  display: flex; align-items: center; justify-content: center;
  color: var(--brand); font-family: var(--serif); font-size: 24px; font-weight: 700;
}
.principle h3 { font-family: var(--serif); font-size: 20px; margin-bottom: 10px; }
.principle p { font-size: 14px; color: var(--muted); }

/* ============== 卡片 ============== */
.grid { display: grid; gap: var(--gap); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-auto { grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }

.card {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 32px; transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: transparent; }
.card h3 { font-family: var(--serif); margin-bottom: 12px; }
.card p { color: var(--ink-soft); font-size: 15px; }
.card .tag { display: inline-block; font-size: 12px; color: var(--brand); background: var(--brand-soft); padding: 5px 14px; border-radius: 999px; margin-bottom: 16px; letter-spacing: .06em; }

/* ============== 媒体 ============== */
.media {
  position: relative; border-radius: var(--radius-sm); overflow: hidden;
  background: linear-gradient(135deg, var(--brand-soft), #dfe7e1);
  aspect-ratio: 4/3; display: flex; align-items: center; justify-content: center;
}
.media.tint-oil     { background: linear-gradient(135deg, #EAF0E6, #DCE8DA); }
.media.tint-sauce   { background: linear-gradient(135deg, var(--accent-soft), #ecd9cf); }
.media.tint-jar     { background: linear-gradient(135deg, #F0EADF, #E6DBC8); }
.media.tint-instant { background: linear-gradient(135deg, #E9EEF0, #D9E2E6); }
.media.tint-meat    { background: linear-gradient(135deg, #F2E4D7, #E5CFB8); }
.media.tint-coming  { background: linear-gradient(135deg, #EFE9DD, #E2D8C4); }
.media .ph-label    { font-size: 13px; color: var(--muted); letter-spacing: .08em; }
.media svg          { width: 38%; height: auto; opacity: .55; }
.media img          { width: 100%; height: 100%; object-fit: cover; display: block; }
.media .corner      { position: absolute; top: 12px; left: 12px; font-size: 11px; color: #fff; background: rgba(20,20,19,.55); padding: 4px 10px; border-radius: 4px; letter-spacing: .08em; }
.media .corner.seal-mark { background: var(--seal); }

.product { display: flex; flex-direction: column; }
.product .media { margin-bottom: 18px; }
.product h3 { font-family: var(--serif); font-size: 18px; }
.product .spec { font-size: 13px; color: var(--muted); margin-top: 6px; letter-spacing: .03em; }
.product .desc { font-size: 14px; margin-top: 10px; flex: 1; }
.product .more { margin-top: 16px; font-size: 14px; color: var(--brand); font-weight: 600; }

.product.coming .media::after {
  content: ""; position: absolute; inset: 0;
  background: repeating-linear-gradient(135deg, transparent 0 14px, rgba(158,59,46,.08) 14px 15px);
  pointer-events: none;
}
.product.coming .corner { background: var(--seal); }

/* ============== 场景 ============== */
.scenario { display: grid; grid-template-columns: 1.1fr 1fr; gap: 0; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--surface); }
.scenario + .scenario { margin-top: 24px; }
.scenario .media { aspect-ratio: auto; min-height: 280px; border-radius: 0; }
.scenario .body { padding: 40px; }
.scenario .body h3 { font-family: var(--serif); font-size: 24px; margin-bottom: 12px; }
.scenario .body p { color: var(--ink-soft); }
.scenario .body .use { margin-top: 18px; font-size: 13px; color: var(--brand); letter-spacing: .05em; }
.scenario.flip .media { order: 2; }

/* ============== 品牌矩阵 ============== */
.matrix { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 18px; }
.matrix .item { border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 24px; background: var(--surface); }
.matrix .item .bn { font-family: var(--serif); font-size: 21px; color: var(--ink); }
.matrix .item .pos { font-size: 13px; color: var(--brand); margin: 8px 0; letter-spacing: .04em; }
.matrix .item .cat { font-size: 12px; color: var(--muted); }

/* ============== 时间线 ============== */
.timeline { border-left: 2px solid var(--line); margin-left: 8px; }
.tl-item { position: relative; padding: 0 0 32px 30px; }
.tl-item::before { content: ""; position: absolute; left: -7px; top: 6px; width: 12px; height: 12px; border-radius: 50%; background: var(--brand); }
.tl-item .year { font-family: var(--serif); font-size: 22px; color: var(--brand); font-weight: 700; }
.tl-item .ev { font-size: 15px; color: var(--ink-soft); margin-top: 6px; }

/* ============== 联系 ============== */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.contact-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 32px; }
.contact-card h3 { font-family: var(--serif); margin-bottom: 18px; }
.contact-card .row { display: flex; gap: 12px; padding: 10px 0; border-bottom: 1px dashed var(--line); font-size: 15px; }
.contact-card .row:last-child { border-bottom: none; }
.contact-card .row .k { color: var(--muted); min-width: 84px; }

.faq { border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-q { width: 100%; text-align: left; background: none; border: none; cursor: pointer; padding: 22px 0; font-size: 17px; font-weight: 600; color: var(--ink); display: flex; justify-content: space-between; align-items: center; gap: 16px; font-family: var(--serif); }
.faq-q .plus { color: var(--brand); font-size: 22px; transition: transform .3s var(--ease); flex-shrink: 0; font-family: var(--sans); }
.faq-item.open .faq-q .plus { transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .35s var(--ease); }
.faq-a p { padding: 0 0 22px; color: var(--ink-soft); font-size: 15px; }

.form { display: grid; gap: 16px; }
.form .field { display: flex; flex-direction: column; gap: 8px; }
.form label { font-size: 13px; color: var(--muted); letter-spacing: .04em; }
.form input, .form textarea, .form select {
  font-family: var(--sans); font-size: 15px; padding: 13px 15px;
  border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--bg);
  color: var(--ink); transition: border-color .2s; width: 100%;
}
.form input:focus, .form textarea:focus, .form select:focus { outline: none; border-color: var(--brand); }
.form textarea { resize: vertical; min-height: 120px; }
.form-note { font-size: 13px; color: var(--muted); }

.cta-band { background: var(--ink); color: #fff; border-radius: var(--radius); padding: clamp(40px, 5.5vw, 68px); text-align: center; }
.cta-band h2 { color: #fff; font-family: var(--serif); }
.cta-band p { color: rgba(255,255,255,.78); margin: 16px auto 28px; max-width: 52ch; }

/* ============== 404 · 此味走失 ============== */
.nf { position: relative; padding: clamp(96px, 13vw, 176px) 0 clamp(56px, 8vw, 110px); overflow: hidden; }
.nf .hero-glow { position: absolute; inset: -20% 0 auto 0; height: 480px; background: radial-gradient(60% 60% at 50% 0%, rgba(58,90,71,.10), transparent 70%); pointer-events: none; }
.nf-stage { display: grid; grid-template-columns: auto 1fr; gap: clamp(28px, 5vw, 76px); align-items: center; }
.nf-code { font-family: var(--serif); font-weight: 700; font-size: clamp(120px, 22vw, 300px); line-height: .86; color: var(--brand-soft); letter-spacing: .01em; user-select: none; }
.nf-code b { color: var(--accent); }
.nf-copy .eyebrow { margin-bottom: 16px; }
.nf-copy h1 { font-family: var(--serif); font-size: clamp(30px, 4.4vw, 54px); line-height: 1.2; margin-bottom: 16px; }
.nf-copy p { color: var(--ink-soft); max-width: 46ch; margin-bottom: 30px; }
.nf-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.nf-sign { display: flex; align-items: center; gap: 16px; margin-top: 52px; }
@media (max-width: 720px) {
  .nf-stage { grid-template-columns: 1fr; gap: 18px; }
  .nf-code { font-size: clamp(96px, 34vw, 170px); }
}

/* ============== 页脚 ============== */
.site-footer { background: var(--brand-deep); color: rgba(255,255,255,.78); padding: 60px 0 30px; margin-top: 40px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 32px; }
.site-footer .logo { font-family: var(--serif); font-size: 24px; color: #fff; }
.site-footer .logo b { color: #B6D4BD; }
.site-footer p { font-size: 14px; margin-top: 14px; }
.site-footer h4 { color: #fff; font-size: 15px; margin-bottom: 16px; letter-spacing: .06em; font-family: var(--serif); }
.site-footer ul { list-style: none; }
.site-footer ul li { padding: 6px 0; font-size: 14px; }
.site-footer ul li a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.12); margin-top: 40px; padding-top: 22px; font-size: 13px; color: rgba(255,255,255,.6); display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; }
.footer-bottom a.beian { color: inherit; text-decoration: none; display: inline-flex; align-items: center; gap: 6px; transition: color .25s; }
.footer-bottom .beian-group { display: inline-flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.footer-bottom a.beian:hover { color: #fff; }
.footer-bottom a.beian img { height: 16px; width: auto; display: block; opacity: .9; }

/* ============== 进场 ============== */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; } }

/* ============== 响应式 ============== */
@media (max-width: 980px) {
  .hero-oriental { grid-template-columns: 1fr; gap: 28px; }
  .hero-meta { justify-content: flex-start; }
  .hero-fig { max-width: 320px; }
  .act-head { grid-template-columns: 1fr; gap: 12px; }
  .act-scene { grid-template-columns: 1fr; }
  .series-rail, .principles, .grid-3, .series-tiles { grid-template-columns: repeat(2, 1fr); }
  .scenario, .scenario.flip { grid-template-columns: 1fr; }
  .scenario .media { order: 0 !important; min-height: 200px; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px) {
  .nav-links, .nav-cta .btn-ghost { display: none; }
  .nav-toggle { display: block; }
  .nav-links.open {
    display: flex; flex-direction: column; gap: 0;
    position: absolute; top: 76px; left: 0; right: 0;
    background: var(--bg); border-bottom: 1px solid var(--line); padding: 8px 24px 18px;
  }
  .nav-links.open a { padding: 12px 0; border-bottom: 1px solid var(--line); }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .series-rail, .principles, .grid-3, .grid-2, .series-tiles { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
}