@charset "UTF-8";
/* ==========================================================================
   青烊国学文化传播 · 国风设计系统
   纯前端 · 无第三方依赖 · 移动优先响应式
   --------------------------------------------------------------------------
   1. 设计令牌     2. 基础重置     3. 版心与工具类   4. 页头与导航
   5. 主视觉       6. 区块与标题   7. 卡片与网格      8. 文章排版
   9. 古乐播放器   10. 联系方式   11. 页脚           12. 悬浮组件
   13. 动画与关键帧 14. 响应式断点 15. 动效降级
   ========================================================================== */

/* ==========================================================================
   1. 设计令牌
   ========================================================================== */
:root {
  /* 宣纸与墨色 */
  --paper:      #f7f2e6;
  --paper-2:    #fffdf7;
  --paper-3:    #f0e8d8;
  --paper-4:    #e6dbc4;
  --ink:        #232821;
  --ink-2:      #3d443b;
  --ink-3:      #6d7268;
  --ink-4:      #9aa094;

  /* 主色：竹青（取自品牌标识） */
  --bamboo:     #3f6b4d;
  --bamboo-2:   #4f8a63;
  --bamboo-3:   #7fb192;
  --bamboo-4:   #cfe3d6;
  --bamboo-mist:rgba(63, 107, 77, 0.08);

  /* 点缀色：朱砂与描金 */
  --cinnabar:   #a83232;
  --cinnabar-2: #c0453f;
  --cinnabar-3: #e8cfcc;
  --gold:       #b8945a;
  --gold-2:     #d9c08a;
  --gold-3:     #f0e5cd;

  /* 描边与阴影 */
  --line:       rgba(63, 107, 77, 0.16);
  --line-2:     rgba(63, 107, 77, 0.28);
  --line-gold:  rgba(184, 148, 90, 0.34);
  --shadow-s:   0 2px 10px rgba(35, 40, 33, 0.06);
  --shadow-m:   0 14px 34px -16px rgba(35, 40, 33, 0.26);
  --shadow-l:   0 30px 70px -30px rgba(35, 40, 33, 0.38);
  --shadow-glow:0 18px 44px -20px rgba(63, 107, 77, 0.46);

  /* 形状 */
  --r-sm: 8px;
  --r-md: 14px;
  --r-lg: 22px;
  --r-pill: 999px;

  /* 版心 */
  --wrap: 1180px;
  --wrap-narrow: 780px;
  --header-h: 76px;

  /* 字体 */
  --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STSong",
                "SimSun", "Microsoft YaHei", serif;
  --font-kai:   "STKaiti", "KaiTi", "Kaiti SC", "楷体", "Noto Serif SC",
                "Songti SC", serif;
  --font-sans:  "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
                "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI",
                Roboto, sans-serif;

  /* 缓动 */
  --ease: cubic-bezier(0.22, 0.68, 0.32, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);

  /* 宣纸颗粒纹理（内联 SVG，无外部请求） */
  --texture: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='.28'/%3E%3C/svg%3E");

  /* 回纹（万不断）饰带 */
  --meander: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='28' height='14' viewBox='0 0 28 14'%3E%3Cpath d='M0 13V1h12v8M4 5h4M16 1v12h12V1M24 9h-4' fill='none' stroke='%233f6b4d' stroke-width='1.1' stroke-linecap='square'/%3E%3C/svg%3E");
  --meander-gold: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='28' height='14' viewBox='0 0 28 14'%3E%3Cpath d='M0 13V1h12v8M4 5h4M16 1v12h12V1M24 9h-4' fill='none' stroke='%23b8945a' stroke-width='1.1' stroke-linecap='square'/%3E%3C/svg%3E");
}

/* ==========================================================================
   2. 基础重置
   ========================================================================== */
*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 16px);
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-serif);
  font-size: clamp(15px, 0.55vw + 13.4px, 17px);
  line-height: 1.95;
  color: var(--ink-2);
  background-color: var(--paper);
  text-align: left;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* 全站宣纸底纹 + 淡远山光晕 */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background-image: var(--texture);
  opacity: 0.5;
}
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(60% 45% at 12% 4%,  rgba(127, 177, 146, 0.16), transparent 70%),
    radial-gradient(55% 40% at 92% 12%, rgba(217, 192, 138, 0.18), transparent 72%),
    radial-gradient(70% 50% at 50% 100%, rgba(63, 107, 77, 0.10), transparent 74%);
}

img, svg, video { max-width: 100%; }
img { height: auto; border: 0; }

a {
  color: var(--bamboo);
  text-decoration: none;
  transition: color 0.28s var(--ease);
}
a:hover, a:focus-visible { color: var(--cinnabar-2); }

h1, h2, h3, h4, h5, h6 {
  margin: 0 0 0.6em;
  font-family: var(--font-kai);
  font-weight: 700;
  line-height: 1.4;
  color: var(--ink);
  letter-spacing: 0.04em;
}

p { margin: 0 0 1.1em; }
ul, ol { padding-left: 1.4em; }

::selection { background: var(--bamboo); color: #fff; }

:focus-visible {
  outline: 2px solid var(--bamboo-2);
  outline-offset: 3px;
  border-radius: 4px;
}

/* 细滚动条 */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--paper-3); }
::-webkit-scrollbar-thumb {
  background: linear-gradient(var(--bamboo-2), var(--bamboo));
  border-radius: var(--r-pill);
  border: 2px solid var(--paper-3);
}
::-webkit-scrollbar-thumb:hover { background: var(--bamboo); }

/* ==========================================================================
   3. 版心与工具类
   ========================================================================== */
.container {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 22px;
}
.container--narrow { max-width: var(--wrap-narrow); }

.visually-hidden,
.sr-only {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.text-center { text-align: center; }
.mt-0 { margin-top: 0; }

/* 墨线分隔 */
.divider-ink {
  height: 1px;
  margin: 34px auto;
  border: 0;
  max-width: 560px;
  background: linear-gradient(90deg, transparent, var(--line-2) 20%, var(--line-2) 80%, transparent);
  position: relative;
}
.divider-ink::after {
  content: "◆";
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  font-size: 10px;
  color: var(--gold);
  background: var(--paper);
  padding: 0 10px;
  line-height: 1;
}

/* 回纹饰带 */
.ornament-strip {
  height: 14px;
  background-image: var(--meander);
  background-repeat: repeat-x;
  background-position: center;
  opacity: 0.5;
  margin: 26px 0;
}

/* ==========================================================================
   4. 页头与导航
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 900;
  background: rgba(247, 242, 230, 0.82);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: background 0.4s var(--ease), border-color 0.4s var(--ease),
              box-shadow 0.4s var(--ease);
}
.site-header.is-scrolled {
  background: rgba(247, 242, 230, 0.95);
  border-bottom-color: var(--line);
  box-shadow: var(--shadow-s);
}

/* 顶部阅读进度（竹青渐染） */
.scroll-progress {
  position: absolute;
  left: 0; bottom: -1px;
  height: 2px;
  width: 0%;
  background: linear-gradient(90deg, var(--bamboo), var(--bamboo-2) 45%, var(--gold));
  transition: width 0.1s linear;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  height: var(--header-h);
}

/* 品牌标识 */
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
  color: var(--ink);
}
.brand:hover { color: var(--ink); }
.brand-logo {
  width: 46px; height: 46px;
  object-fit: contain;
  border-radius: 50%;
  background: var(--paper-2);
  box-shadow: 0 0 0 1px var(--line), var(--shadow-s);
  transition: transform 0.7s var(--ease-spring);
}
.brand:hover .brand-logo { transform: rotate(360deg) scale(1.06); }
.brand-text { display: flex; flex-direction: column; line-height: 1.25; }
.brand-name {
  font-family: var(--font-kai);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--ink);
}
.brand-sub {
  font-family: var(--font-sans);
  font-size: 10.5px;
  letter-spacing: 0.22em;
  color: var(--ink-3);
  text-transform: uppercase;
}

/* 桌面主导航 */
.main-nav { display: none; }
.main-nav > ul {
  display: flex;
  align-items: center;
  gap: 4px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.main-nav > ul > li { position: relative; }
.main-nav a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 14px;
  font-family: var(--font-sans);
  font-size: 14.5px;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--ink-2);
  border-radius: var(--r-sm);
  position: relative;
  white-space: nowrap;
}
/* 悬停/激活时的墨笔下划线 */
.main-nav a::after {
  content: "";
  position: absolute;
  left: 14px; right: 14px; bottom: 4px;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--bamboo), var(--gold));
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.36s var(--ease-out);
}
.main-nav a:hover::after,
.main-nav a:focus-visible::after { transform: scaleX(1); }
.main-nav a:hover { color: var(--bamboo); }
.main-nav a.is-active { color: var(--bamboo); font-weight: 600; }
.main-nav a.is-active::after { transform: scaleX(1); }

/* 下拉菜单 */
.nav-drop-menu {
  position: absolute;
  top: calc(100% + 10px);
  left: 50%;
  transform: translate(-50%, 10px);
  min-width: 268px;
  padding: 10px;
  margin: 0;
  list-style: none;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-m);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.3s var(--ease), transform 0.34s var(--ease-out),
              visibility 0.3s;
}
.nav-drop-menu::before {
  content: "";
  position: absolute;
  top: -6px; left: 50%;
  width: 12px; height: 12px;
  margin-left: -6px;
  background: var(--paper-2);
  border-left: 1px solid var(--line);
  border-top: 1px solid var(--line);
  transform: rotate(45deg);
}
.nav-drop:hover .nav-drop-menu,
.nav-drop:focus-within .nav-drop-menu {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translate(-50%, 0);
}
.nav-drop-menu a {
  display: block;
  padding: 9px 12px;
  font-size: 14px;
  border-radius: var(--r-sm);
  transition: background 0.24s var(--ease), color 0.24s var(--ease),
              padding-left 0.24s var(--ease);
}
.nav-drop-menu a::after { display: none; }
.nav-drop-menu a:hover {
  background: var(--bamboo-mist);
  color: var(--bamboo);
  padding-left: 18px;
}

/* 导航行动按钮 */
.nav-cta {
  background: linear-gradient(135deg, var(--bamboo-2), var(--bamboo)) !important;
  color: #fff !important;
  box-shadow: 0 8px 20px -10px rgba(63, 107, 77, 0.8);
  margin-left: 8px;
}
.nav-cta::after { display: none; }
.nav-cta:hover { filter: brightness(1.08); transform: translateY(-1px); }

/* 汉堡按钮 */
.nav-toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 46px; height: 46px;
  padding: 0 11px;
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  cursor: pointer;
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease);
}
.nav-toggle:hover { border-color: var(--bamboo-2); }
.nav-toggle-bar {
  display: block;
  height: 2px;
  width: 100%;
  border-radius: 2px;
  background: var(--bamboo);
  transition: transform 0.42s var(--ease-spring), opacity 0.24s var(--ease),
              width 0.3s var(--ease);
}
.nav-toggle-bar:nth-child(2) { width: 72%; }
.nav-toggle.is-open .nav-toggle-bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.is-open .nav-toggle-bar:nth-child(2) { opacity: 0; width: 0; }
.nav-toggle.is-open .nav-toggle-bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* 移动端抽屉 */
.drawer-mask {
  position: fixed;
  inset: 0;
  z-index: 940;
  background: rgba(35, 40, 33, 0.44);
  -webkit-backdrop-filter: blur(3px);
  backdrop-filter: blur(3px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s var(--ease), visibility 0.4s;
}
.drawer-mask.is-open { opacity: 1; visibility: visible; }

.mobile-drawer {
  position: fixed;
  top: 0; right: 0; bottom: 0;
  z-index: 950;
  width: min(88vw, 340px);
  padding: 88px 24px 40px;
  overflow-y: auto;
  overscroll-behavior: contain;
  background: var(--paper-2);
  border-left: 1px solid var(--line);
  box-shadow: var(--shadow-l);
  transform: translateX(102%);
  visibility: hidden;
  transition: transform 0.52s var(--ease-out), visibility 0.52s;
}
.mobile-drawer.is-open { transform: translateX(0); visibility: visible; }
.mobile-drawer::before {
  content: "";
  position: absolute;
  top: 0; left: 0; bottom: 0;
  width: 4px;
  background: linear-gradient(180deg, var(--bamboo), var(--gold-2), var(--cinnabar-3));
  opacity: 0.7;
}
.mobile-drawer ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.mobile-drawer > ul > li { border-bottom: 1px dashed var(--line); }
.mobile-drawer a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 15px 4px;
  font-family: var(--font-kai);
  font-size: 17.5px;
  letter-spacing: 0.08em;
  color: var(--ink);
  transition: color 0.28s var(--ease), padding-left 0.32s var(--ease-out);
}
.mobile-drawer a::before {
  content: "";
  width: 6px; height: 6px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--gold-2);
  transition: background 0.3s var(--ease), transform 0.3s var(--ease-spring);
}
.mobile-drawer a:hover,
.mobile-drawer a.is-active { color: var(--bamboo); padding-left: 12px; }
.mobile-drawer a:hover::before,
.mobile-drawer a.is-active::before { background: var(--cinnabar); transform: scale(1.35); }

/* 抽屉内的二级分组 */
.drawer-group { border-bottom: 1px dashed var(--line); }
.drawer-group > button {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 15px 4px;
  font-family: var(--font-kai);
  font-size: 17.5px;
  letter-spacing: 0.08em;
  color: var(--ink);
  background: none;
  border: 0;
  cursor: pointer;
  text-align: left;
}
.drawer-group > button .chev {
  font-size: 12px;
  color: var(--gold);
  transition: transform 0.4s var(--ease-spring);
}
.drawer-group.is-open > button .chev { transform: rotate(180deg); }
.drawer-group ul {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 8px;
  overflow: hidden;
  transition: max-height 0.5s var(--ease-out), opacity 0.4s var(--ease);
}
.js .drawer-group ul { max-height: 0; opacity: 0; }
.js .drawer-group.is-open ul { max-height: 460px; opacity: 1; }
.drawer-group ul a {
  font-size: 15px;
  padding: 11px 4px;
  color: var(--ink-3);
}
.drawer-group ul a::before { width: 4px; height: 4px; }

.drawer-foot {
  margin-top: 30px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  font-family: var(--font-sans);
  font-size: 13px;
  color: var(--ink-3);
  text-align: center;
  line-height: 2;
}

/* ==========================================================================
   5. 主视觉
   ========================================================================== */
.hero {
  position: relative;
  padding: calc(var(--header-h) + 60px) 0 76px;
  overflow: hidden;
  isolation: isolate;
}

/* 远山层（内联 SVG） */
.hero-scape {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  width: 100%;
  height: clamp(170px, 30vw, 420px);
  z-index: -1;
  pointer-events: none;
  opacity: 0.9;
}
.hero-cloud {
  position: absolute;
  z-index: -1;
  pointer-events: none;
  opacity: 0.35;
  animation: drift 46s linear infinite;
}
.hero-cloud--a { top: 8%;  left: -18%; width: 340px; animation-duration: 52s; }
.hero-cloud--b { top: 30%; right: -14%; width: 260px; animation-duration: 64s;
                 animation-direction: reverse; opacity: 0.26; }

/* 旋转太极 */
.hero-taiji {
  position: absolute;
  top: 18%; right: 5%;
  width: clamp(96px, 13vw, 176px);
  z-index: -1;
  pointer-events: none;
  opacity: 0.13;
  animation: spin 42s linear infinite;
}

.hero-inner { max-width: 760px; }

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 22px;
  padding: 7px 18px 7px 14px;
  font-family: var(--font-sans);
  font-size: 12.5px;
  letter-spacing: 0.2em;
  color: var(--bamboo);
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  box-shadow: var(--shadow-s);
}
.hero-eyebrow::before {
  content: "";
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--cinnabar);
  animation: pulse 2.6s ease-in-out infinite;
}

.hero-title {
  margin: 0 0 22px;
  font-size: clamp(30px, 5.6vw, 58px);
  line-height: 1.22;
  letter-spacing: 0.05em;
  color: var(--ink);
}
.hero-title .ch {
  display: inline-block;
  opacity: 0;
  transform: translateY(0.5em) rotate(4deg);
  animation: inkIn 0.86s var(--ease-out) forwards;
}
.hero-title em {
  font-style: normal;
  color: var(--bamboo);
  position: relative;
}
/* 题字下的毛笔晕染 */
.hero-title em::after {
  content: "";
  position: absolute;
  left: -4px; right: -4px; bottom: 4px;
  height: 0.34em;
  background: linear-gradient(90deg, var(--bamboo-4), var(--gold-3));
  border-radius: 3px;
  z-index: -1;
  transform: scaleX(0);
  transform-origin: left center;
  animation: brush 1.05s var(--ease-out) var(--brush-delay, 0.9s) forwards;
}

.hero-lede {
  max-width: 620px;
  font-size: clamp(15px, 1.4vw + 11px, 18px);
  line-height: 2.05;
  color: var(--ink-3);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

/* 印章 */
.hero-seal {
  position: absolute;
  right: 6%;
  bottom: 20%;
  width: 92px; height: 92px;
  display: grid;
  place-items: center;
  font-family: var(--font-kai);
  font-size: 15px;
  line-height: 1.15;
  letter-spacing: 0.06em;
  text-align: center;
  color: var(--cinnabar);
  background: rgba(168, 50, 50, 0.06);
  border: 2.5px solid var(--cinnabar);
  border-radius: 8px;
  transform: rotate(-11deg) scale(0.4);
  opacity: 0;
  z-index: -1;
  box-shadow: inset 0 0 0 3px rgba(168, 50, 50, 0.1);
  animation: stamp 0.9s var(--ease-spring) 1.25s forwards;
}
.hero-seal::before {
  content: "";
  position: absolute;
  inset: 5px;
  border: 1px solid rgba(168, 50, 50, 0.4);
  border-radius: 5px;
}

/* 数据条 */
.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  max-width: 620px;
  margin-top: 52px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  overflow: hidden;
  box-shadow: var(--shadow-s);
}
.stat {
  padding: 20px 14px;
  text-align: center;
  background: rgba(255, 253, 247, 0.86);
  transition: background 0.4s var(--ease);
}
.stat:hover { background: var(--paper-2); }
.stat-num {
  display: block;
  font-family: var(--font-kai);
  font-size: clamp(22px, 2.4vw + 14px, 32px);
  font-weight: 700;
  color: var(--bamboo);
  line-height: 1.2;
}
.stat-label {
  font-family: var(--font-sans);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--ink-3);
}

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 13px 30px;
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.1em;
  border: 1px solid transparent;
  border-radius: var(--r-pill);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: transform 0.34s var(--ease-spring), box-shadow 0.34s var(--ease),
              background 0.34s var(--ease), color 0.34s var(--ease),
              border-color 0.34s var(--ease);
}
/* 按钮掠过的高光 */
.btn::after {
  content: "";
  position: absolute;
  top: 0; left: -120%;
  width: 60%; height: 100%;
  background: linear-gradient(100deg, transparent, rgba(255, 255, 255, 0.5), transparent);
  transform: skewX(-22deg);
  transition: left 0.7s var(--ease-out);
}
.btn:hover::after { left: 130%; }

.btn-primary {
  background: linear-gradient(135deg, var(--bamboo-2), var(--bamboo));
  color: #fff;
  box-shadow: 0 12px 28px -14px rgba(63, 107, 77, 0.9);
}
.btn-primary:hover {
  color: #fff;
  transform: translateY(-3px);
  box-shadow: 0 20px 38px -16px rgba(63, 107, 77, 0.95);
}
.btn-ghost {
  background: var(--paper-2);
  color: var(--bamboo);
  border-color: var(--line-2);
}
.btn-ghost:hover {
  color: var(--bamboo);
  border-color: var(--bamboo-2);
  transform: translateY(-3px);
  box-shadow: var(--shadow-m);
}
.btn-gold {
  background: linear-gradient(135deg, var(--gold-2), var(--gold));
  color: #4a3a1c;
  box-shadow: 0 12px 28px -14px rgba(184, 148, 90, 0.9);
}
.btn-gold:hover { color: #3a2c12; transform: translateY(-3px); }

/* 内页页头 */
.page-hero {
  position: relative;
  padding: calc(var(--header-h) + 54px) 0 54px;
  text-align: center;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(70% 120% at 50% 0%, rgba(127, 177, 146, 0.16), transparent 68%),
    linear-gradient(180deg, var(--paper-2), var(--paper));
}
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 8px;
  margin-bottom: 18px;
  font-family: var(--font-sans);
  font-size: 12.5px;
  letter-spacing: 0.1em;
  color: var(--ink-4);
}
.breadcrumb a { color: var(--ink-3); }
.breadcrumb a:hover { color: var(--bamboo); }
.breadcrumb span[aria-hidden] { color: var(--gold); }
.page-title {
  margin: 0 0 16px;
  font-size: clamp(27px, 4.4vw, 44px);
  letter-spacing: 0.08em;
}
.page-sub {
  max-width: 660px;
  margin: 0 auto;
  font-size: clamp(14px, 1vw + 11.6px, 16.5px);
  line-height: 1.95;
  color: var(--ink-3);
}

/* ==========================================================================
   6. 区块与标题
   ========================================================================== */
.section {
  position: relative;
  padding: clamp(56px, 7vw, 96px) 0;
}
.section--tint {
  background: linear-gradient(180deg, rgba(255, 253, 247, 0.9), rgba(240, 232, 216, 0.7));
  border-block: 1px solid var(--line);
}
.section--deco::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: var(--texture);
  opacity: 0.4;
  pointer-events: none;
}

.section-head {
  max-width: 720px;
  margin: 0 auto clamp(34px, 4vw, 58px);
  text-align: center;
}
.section-eyebrow {
  display: inline-block;
  margin-bottom: 12px;
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.32em;
  color: var(--gold);
  text-transform: uppercase;
}
.section-title {
  margin: 0 0 14px;
  font-size: clamp(23px, 2.8vw + 12px, 36px);
  letter-spacing: 0.07em;
}
.section-desc {
  margin: 0;
  color: var(--ink-3);
  line-height: 2;
}
/* 标题下回纹短饰 */
.section-head::after {
  content: "";
  display: block;
  width: 92px; height: 14px;
  margin: 22px auto 0;
  background-image: var(--meander-gold);
  background-repeat: repeat-x;
  background-position: center;
  opacity: 0.75;
}

/* ==========================================================================
   7. 卡片与网格
   ========================================================================== */
.grid {
  display: grid;
  gap: 22px;
  grid-template-columns: 1fr;
}
.grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }

/* 通用卡片：宣纸卡 + 描金四角 */
.card {
  position: relative;
  padding: 30px 26px;
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-s);
  transition: transform 0.44s var(--ease-out), box-shadow 0.44s var(--ease),
              border-color 0.44s var(--ease);
  overflow: hidden;
}
/* 四角描金花牙 */
.card::before {
  content: "";
  position: absolute;
  inset: 11px;
  border: 1px solid transparent;
  border-image: none;
  pointer-events: none;
  background:
    linear-gradient(var(--gold-2), var(--gold-2)) left 0 top 0 / 16px 1px no-repeat,
    linear-gradient(var(--gold-2), var(--gold-2)) left 0 top 0 / 1px 16px no-repeat,
    linear-gradient(var(--gold-2), var(--gold-2)) right 0 top 0 / 16px 1px no-repeat,
    linear-gradient(var(--gold-2), var(--gold-2)) right 0 top 0 / 1px 16px no-repeat,
    linear-gradient(var(--gold-2), var(--gold-2)) left 0 bottom 0 / 16px 1px no-repeat,
    linear-gradient(var(--gold-2), var(--gold-2)) left 0 bottom 0 / 1px 16px no-repeat,
    linear-gradient(var(--gold-2), var(--gold-2)) right 0 bottom 0 / 16px 1px no-repeat,
    linear-gradient(var(--gold-2), var(--gold-2)) right 0 bottom 0 / 1px 16px no-repeat;
  opacity: 0;
  transition: opacity 0.44s var(--ease);
}
.card:hover::before { opacity: 1; }
.card:hover {
  transform: translateY(-7px);
  border-color: var(--line-2);
  box-shadow: var(--shadow-m);
}
/* 卡片顶部竹青渗染 */
.card::after {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--bamboo), var(--bamboo-2), var(--gold-2));
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.55s var(--ease-out);
}
.card:hover::after { transform: scaleX(1); }

.card-icon {
  display: grid;
  place-items: center;
  width: 60px; height: 60px;
  margin-bottom: 18px;
  border-radius: 50%;
  color: var(--bamboo);
  background: radial-gradient(circle at 34% 28%, var(--paper-2), var(--bamboo-4));
  border: 1px solid var(--line);
  transition: transform 0.5s var(--ease-spring), color 0.4s var(--ease);
}
.card:hover .card-icon { transform: rotate(-8deg) scale(1.08); color: var(--cinnabar); }
.card-icon svg { width: 30px; height: 30px; }

.card-title {
  margin: 0 0 10px;
  font-size: 19.5px;
  letter-spacing: 0.07em;
}
.card-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.95;
  color: var(--ink-3);
}

/* 业务九宫格：序号 + 名称 */
.svc-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}
.svc-link {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 14px;
  font-family: var(--font-kai);
  font-size: 16px;
  letter-spacing: 0.06em;
  color: var(--ink);
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  overflow: hidden;
  transition: transform 0.34s var(--ease-out), border-color 0.34s var(--ease),
              box-shadow 0.34s var(--ease), color 0.34s var(--ease);
}
.svc-link .num {
  flex-shrink: 0;
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0;
  width: 26px; height: 26px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: var(--gold);
  background: var(--gold-3);
  transition: background 0.34s var(--ease), color 0.34s var(--ease);
}
.svc-link:hover {
  transform: translateY(-3px);
  border-color: var(--bamboo-2);
  box-shadow: var(--shadow-m);
  color: var(--bamboo);
}
.svc-link:hover .num { background: var(--bamboo); color: #fff; }

/* ==========================================================================
   8. 文章排版（prose）
   ========================================================================== */
.prose {
  max-width: var(--wrap-narrow);
  margin: 0 auto;
  font-size: 16.5px;
  line-height: 2.15;
  color: var(--ink-2);
}
.prose > h2 {
  margin: 2.4em 0 1em;
  padding-bottom: 0.5em;
  font-size: clamp(20px, 1.6vw + 15px, 26px);
  letter-spacing: 0.08em;
  border-bottom: 1px solid var(--line);
  position: relative;
}
.prose > h2::after {
  content: "";
  position: absolute;
  left: 0; bottom: -1px;
  width: 76px; height: 2px;
  background: linear-gradient(90deg, var(--bamboo), var(--gold-2));
}
.prose > h3 {
  margin: 2em 0 0.8em;
  padding-left: 16px;
  font-size: clamp(17.5px, 1.2vw + 14px, 21px);
  letter-spacing: 0.06em;
  position: relative;
}
.prose > h3::before {
  content: "";
  position: absolute;
  left: 0; top: 0.34em;
  width: 4px; height: 1.05em;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--bamboo), var(--gold-2));
}
.prose > h4 {
  margin: 1.7em 0 0.7em;
  font-size: 17px;
  color: var(--bamboo);
}
.prose p { margin: 0 0 1.35em; }
.prose strong { color: var(--ink); font-weight: 700; }
.prose em { color: var(--bamboo); font-style: normal; }
.prose a { border-bottom: 1px dashed var(--line-2); }
.prose a:hover { border-bottom-color: var(--cinnabar); }

/* 段落首字下沉 */
.prose--lead > p:first-of-type::first-letter {
  float: left;
  margin: 0.12em 14px 0 0;
  font-family: var(--font-kai);
  font-size: 3.5em;
  line-height: 0.86;
  color: var(--bamboo);
  text-shadow: 2px 3px 0 var(--bamboo-4);
}

.prose ul, .prose ol { margin: 0 0 1.35em; padding-left: 1.5em; }
.prose li { margin-bottom: 0.6em; }
.prose li::marker { color: var(--gold); }
.prose ul li::marker { content: "◆  "; font-size: 0.66em; }

/* 引文：竹简风 */
.prose blockquote {
  position: relative;
  margin: 1.9em 0;
  padding: 22px 26px 22px 30px;
  color: var(--ink-2);
  background: linear-gradient(180deg, rgba(207, 227, 214, 0.34), rgba(240, 229, 205, 0.34));
  border-left: 4px solid var(--bamboo-3);
  border-radius: 0 var(--r-md) var(--r-md) 0;
  font-size: 16px;
  line-height: 2;
}
.prose blockquote::before {
  content: "「";
  position: absolute;
  top: 4px; left: 8px;
  font-family: var(--font-kai);
  font-size: 34px;
  color: var(--bamboo-3);
  opacity: 0.6;
  line-height: 1;
}
.prose blockquote p:last-child { margin-bottom: 0; }
.prose blockquote blockquote {
  margin: 1.2em 0 0;
  background: rgba(255, 253, 247, 0.7);
  border-left-color: var(--gold-2);
}

.prose hr {
  height: 1px;
  margin: 2.6em auto;
  border: 0;
  max-width: 460px;
  background: linear-gradient(90deg, transparent, var(--line-2) 22%, var(--line-2) 78%, transparent);
}

/* 图注 */
.figure {
  margin: 2em 0;
  text-align: center;
}
.figure img {
  width: 100%;
  border-radius: var(--r-md);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-m);
  transition: transform 0.6s var(--ease-out), box-shadow 0.6s var(--ease);
}
.figure img:hover { transform: scale(1.015); box-shadow: var(--shadow-l); }
.figure figcaption {
  margin-top: 14px;
  font-family: var(--font-sans);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--ink-4);
}

/* 数据表（响应式） */
.table-wrap {
  margin: 1.9em 0;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--paper-2);
  box-shadow: var(--shadow-s);
  -webkit-overflow-scrolling: touch;
}
.table-wrap table {
  width: 100%;
  min-width: 420px;
  border-collapse: collapse;
  font-size: 15px;
}
.table-wrap th, .table-wrap td {
  padding: 13px 16px;
  text-align: left;
  border-bottom: 1px solid var(--line);
}
.table-wrap th {
  font-family: var(--font-kai);
  font-size: 16px;
  letter-spacing: 0.06em;
  color: var(--paper-2);
  background: linear-gradient(135deg, var(--bamboo-2), var(--bamboo));
  white-space: nowrap;
}
.table-wrap tbody tr:last-child td { border-bottom: 0; }
.table-wrap tbody tr { transition: background 0.26s var(--ease); }
.table-wrap tbody tr:hover { background: var(--bamboo-mist); }

/* 内页两栏布局 */
.article-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 34px;
  align-items: start;
}
/* 移动端：侧栏内容转为正文下方的堆叠区块，不丢失信息 */
.article-side { display: grid; gap: 20px; }

/* 桌面端：侧栏吸附跟随 */
@media (min-width: 900px) {
  .article-side { position: sticky; top: calc(var(--header-h) + 24px); }
}

.side-card {
  padding: 22px;
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-s);
}
.side-card h4 {
  margin: 0 0 14px;
  padding-bottom: 10px;
  font-size: 15.5px;
  letter-spacing: 0.12em;
  border-bottom: 1px solid var(--line);
}
.side-card ul { margin: 0; padding: 0; list-style: none; }
.side-card li + li { border-top: 1px dashed var(--line); }
.side-card li a {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 10px 2px;
  font-size: 14.5px;
  color: var(--ink-2);
  transition: color 0.28s var(--ease), padding-left 0.32s var(--ease-out);
}
.side-card li a::before {
  content: "";
  width: 5px; height: 5px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--gold-2);
  transition: background 0.28s var(--ease);
}
.side-card li a:hover { color: var(--bamboo); padding-left: 9px; }
.side-card li a:hover::before { background: var(--cinnabar); }

.side-cta {
  padding: 26px 22px;
  text-align: center;
  border-radius: var(--r-md);
  color: #fff;
  background: linear-gradient(150deg, var(--bamboo-2), var(--bamboo) 60%, #2f5239);
  box-shadow: var(--shadow-glow);
  position: relative;
  overflow: hidden;
}
.side-cta::before {
  content: "";
  position: absolute;
  inset: 8px;
  border: 1px solid rgba(217, 192, 138, 0.42);
  border-radius: var(--r-sm);
  pointer-events: none;
}
.side-cta h4 {
  margin: 0 0 8px;
  font-size: 18px;
  color: #fff;
  letter-spacing: 0.1em;
}
.side-cta p {
  margin: 0 0 16px;
  font-size: 13.5px;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.82);
}
.side-cta .btn { width: 100%; }

/* ==========================================================================
   9. 古乐播放器
   ========================================================================== */
.player {
  position: relative;
  display: grid;
  gap: 26px;
  padding: clamp(26px, 4vw, 42px);
  background:
    radial-gradient(90% 120% at 12% 0%, rgba(207, 227, 214, 0.5), transparent 62%),
    var(--paper-2);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-m);
  overflow: hidden;
}
.player-main {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 26px;
}

/* 旋转唱片 */
.player-disc {
  position: relative;
  flex-shrink: 0;
  width: clamp(112px, 26vw, 152px);
  aspect-ratio: 1;
  border-radius: 50%;
  background:
    repeating-radial-gradient(circle, rgba(255, 255, 255, 0.05) 0 1px, transparent 1px 5px),
    radial-gradient(circle, #2c3a30 0 26%, #23302a 26% 100%);
  box-shadow: 0 20px 40px -20px rgba(35, 40, 33, 0.7), inset 0 0 0 1px rgba(217, 192, 138, 0.3);
  display: grid;
  place-items: center;
  animation: spin 9s linear infinite;
  animation-play-state: paused;
}
.player.is-playing .player-disc { animation-play-state: running; }
.player-disc::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: radial-gradient(circle at 32% 24%, rgba(255, 255, 255, 0.2), transparent 42%);
  pointer-events: none;
}
.player-disc-inner {
  width: 42%;
  aspect-ratio: 1;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: radial-gradient(circle at 36% 30%, var(--gold-2), var(--gold));
  color: #40340f;
  font-family: var(--font-kai);
  font-size: 15px;
  letter-spacing: 0.06em;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.4);
}

.player-info { flex: 1 1 240px; min-width: 0; }
.player-label {
  font-family: var(--font-sans);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.28em;
  color: var(--gold);
  text-transform: uppercase;
}
.player-title {
  margin: 6px 0 4px;
  font-size: clamp(20px, 2vw + 15px, 26px);
  letter-spacing: 0.08em;
}
.player-meta {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 13.5px;
  color: var(--ink-3);
  line-height: 1.9;
}

/* 跳动的音律柱 */
.eq {
  display: flex;
  align-items: flex-end;
  gap: 3px;
  height: 26px;
  margin-top: 14px;
}
.eq span {
  width: 3px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--bamboo-2), var(--gold-2));
  height: 22%;
  animation: eqBeat 1.15s ease-in-out infinite;
}
.eq span:nth-child(2) { animation-delay: 0.15s; }
.eq span:nth-child(3) { animation-delay: 0.3s; }
.eq span:nth-child(4) { animation-delay: 0.45s; }
.eq span:nth-child(5) { animation-delay: 0.6s; }
.eq span:nth-child(6) { animation-delay: 0.28s; }
.eq span:nth-child(7) { animation-delay: 0.42s; }
.eq span:nth-child(8) { animation-delay: 0.1s; }
.eq span:nth-child(9) { animation-delay: 0.5s; }
.eq span:nth-child(10){ animation-delay: 0.2s; }
.player:not(.is-playing) .eq span {
  animation-play-state: paused;
  height: 22%;
}

.player-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
}
.pc-btn {
  display: inline-grid;
  place-items: center;
  width: 48px; height: 48px;
  border-radius: 50%;
  border: 1px solid var(--line-2);
  background: var(--paper-2);
  color: var(--bamboo);
  cursor: pointer;
  transition: transform 0.32s var(--ease-spring), background 0.32s var(--ease),
              color 0.32s var(--ease), border-color 0.32s var(--ease);
}
.pc-btn:hover {
  background: var(--bamboo);
  color: #fff;
  border-color: var(--bamboo);
  transform: scale(1.07);
}
.pc-btn svg { width: 19px; height: 19px; }
.pc-btn--play {
  width: 60px; height: 60px;
  color: #fff;
  background: linear-gradient(135deg, var(--bamboo-2), var(--bamboo));
  border-color: transparent;
  box-shadow: 0 14px 30px -14px rgba(63, 107, 77, 0.9);
}
.pc-btn--play:hover { color: #fff; transform: scale(1.09); }
.pc-btn--play .ico-pause { display: none; }
.player.is-playing .pc-btn--play .ico-play { display: none; }
.player.is-playing .pc-btn--play .ico-pause { display: block; }

.player-time {
  font-family: var(--font-sans);
  font-size: 13px;
  font-variant-numeric: tabular-nums;
  color: var(--ink-3);
}
.player-volume {
  display: none;
  align-items: center;
  gap: 10px;
  margin-left: auto;
  color: var(--ink-3);
}
.player-volume svg { width: 18px; height: 18px; }
.player-volume input[type="range"] { width: 96px; }

/* 进度条 */
.progress {
  position: relative;
  height: 6px;
  border-radius: var(--r-pill);
  background: var(--paper-4);
  cursor: pointer;
}
.progress-bar {
  position: absolute;
  inset: 0 auto 0 0;
  width: 0%;
  border-radius: var(--r-pill);
  background: linear-gradient(90deg, var(--bamboo), var(--bamboo-2) 55%, var(--gold-2));
}
.progress-bar::after {
  content: "";
  position: absolute;
  right: -7px; top: 50%;
  width: 14px; height: 14px;
  margin-top: -7px;
  border-radius: 50%;
  background: var(--paper-2);
  border: 3px solid var(--bamboo);
  box-shadow: 0 2px 8px rgba(35, 40, 33, 0.28);
  transform: scale(0);
  transition: transform 0.3s var(--ease-spring);
}
.progress:hover .progress-bar::after,
.player.is-playing .progress-bar::after { transform: scale(1); }

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  height: 5px;
  border-radius: var(--r-pill);
  background: var(--paper-4);
  cursor: pointer;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--bamboo);
  border: 2px solid var(--paper-2);
  box-shadow: 0 2px 6px rgba(35, 40, 33, 0.3);
}
input[type="range"]::-moz-range-thumb {
  width: 14px; height: 14px;
  border: 2px solid var(--paper-2);
  border-radius: 50%;
  background: var(--bamboo);
}

/* 曲目列表 */
.player audio { display: none; }
.player .track-list { margin: 0; }
.track-list {
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--paper-2);
}
.track {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 15px 18px;
  cursor: pointer;
  border-bottom: 1px solid var(--line);
  transition: background 0.28s var(--ease), padding-left 0.34s var(--ease-out);
}
.track:last-child { border-bottom: 0; }
.track:hover { background: var(--bamboo-mist); padding-left: 24px; }
.track-index {
  flex-shrink: 0;
  width: 30px;
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 700;
  color: var(--gold);
}
.track-body { flex: 1; min-width: 0; }
.track-name {
  display: block;
  font-family: var(--font-kai);
  font-size: 16.5px;
  letter-spacing: 0.06em;
  color: var(--ink);
}
.track-note {
  display: block;
  font-family: var(--font-sans);
  font-size: 12.5px;
  color: var(--ink-4);
}
.track.is-active {
  background: linear-gradient(90deg, rgba(207, 227, 214, 0.6), rgba(240, 229, 205, 0.4));
}
.track.is-active .track-name { color: var(--bamboo); }
.track.is-active .track-index::after {
  content: "▶";
  margin-left: 6px;
  font-size: 9px;
}

/* 五音对应 */
.wuyin-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}
.wuyin {
  padding: 18px 16px;
  text-align: center;
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  transition: transform 0.38s var(--ease-out), border-color 0.38s var(--ease),
              box-shadow 0.38s var(--ease);
}
.wuyin:hover {
  transform: translateY(-5px);
  border-color: var(--bamboo-2);
  box-shadow: var(--shadow-m);
}
.wuyin-glyph {
  display: block;
  font-family: var(--font-kai);
  font-size: 30px;
  line-height: 1.2;
  color: var(--bamboo);
  transition: transform 0.5s var(--ease-spring), color 0.4s var(--ease);
}
.wuyin:hover .wuyin-glyph { transform: scale(1.16) rotate(-6deg); color: var(--cinnabar); }
.wuyin-name {
  display: block;
  margin-top: 6px;
  font-family: var(--font-sans);
  font-size: 12.5px;
  letter-spacing: 0.1em;
  color: var(--ink-3);
}

/* ==========================================================================
   10. 联系方式
   ========================================================================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  align-items: start;
}
.contact-card {
  padding: 30px 26px;
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-s);
}
.contact-list { margin: 0; padding: 0; list-style: none; }
.contact-list li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 15px 0;
  border-bottom: 1px dashed var(--line);
}
.contact-list li:last-child { border-bottom: 0; }
.contact-list .ico {
  flex-shrink: 0;
  display: grid;
  place-items: center;
  width: 40px; height: 40px;
  border-radius: 50%;
  color: var(--bamboo);
  background: var(--bamboo-mist);
  transition: background 0.34s var(--ease), color 0.34s var(--ease),
              transform 0.44s var(--ease-spring);
}
.contact-list li:hover .ico {
  background: var(--bamboo);
  color: #fff;
  transform: scale(1.08) rotate(-6deg);
}
.contact-list .ico svg { width: 19px; height: 19px; }
.contact-list .label {
  display: block;
  font-family: var(--font-sans);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--ink-4);
}
.contact-list .value {
  display: block;
  font-size: 16px;
  color: var(--ink);
  word-break: break-all;
}
.contact-list a.value:hover { color: var(--bamboo); }

.qr-box {
  display: grid;
  place-items: center;
  gap: 14px;
  padding: 26px;
  text-align: center;
  border: 1px dashed var(--line-2);
  border-radius: var(--r-md);
  background: linear-gradient(180deg, rgba(255, 253, 247, 0.9), rgba(240, 232, 216, 0.6));
}
.qr-box img {
  width: min(200px, 62vw);
  border-radius: var(--r-sm);
  border: 1px solid var(--line);
  background: #fff;
  padding: 8px;
  transition: transform 0.5s var(--ease-spring);
}
.qr-box:hover img { transform: scale(1.05) rotate(1.5deg); }
.qr-box p {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 13.5px;
  letter-spacing: 0.08em;
  color: var(--ink-3);
}

/* 服务流程 */
.flow {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  counter-reset: flow;
}
.flow-step {
  position: relative;
  padding: 24px 22px 24px 68px;
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  transition: transform 0.4s var(--ease-out), box-shadow 0.4s var(--ease),
              border-color 0.4s var(--ease);
}
.flow-step::before {
  counter-increment: flow;
  content: counter(flow, decimal-leading-zero);
  position: absolute;
  left: 20px; top: 24px;
  font-family: var(--font-kai);
  font-size: 24px;
  font-weight: 700;
  color: var(--gold-2);
  transition: color 0.36s var(--ease), transform 0.44s var(--ease-spring);
}
.flow-step:hover {
  transform: translateX(6px);
  border-color: var(--bamboo-2);
  box-shadow: var(--shadow-m);
}
.flow-step:hover::before { color: var(--bamboo); transform: scale(1.12); }
.flow-step h4 { margin: 0 0 8px; font-size: 17.5px; letter-spacing: 0.06em; }
.flow-step p { margin: 0; font-size: 14.8px; line-height: 1.95; color: var(--ink-3); }

/* 常见问答 */
.faq { max-width: var(--wrap-narrow); margin: 0 auto; }
.faq-item {
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--paper-2);
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color 0.34s var(--ease), box-shadow 0.34s var(--ease);
}
.faq-item.is-open { border-color: var(--bamboo-2); box-shadow: var(--shadow-s); }
.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 20px;
  font-family: var(--font-kai);
  font-size: 17px;
  letter-spacing: 0.05em;
  color: var(--ink);
  background: none;
  border: 0;
  cursor: pointer;
  text-align: left;
}
.faq-q .sign {
  flex-shrink: 0;
  position: relative;
  width: 16px; height: 16px;
}
.faq-q .sign::before,
.faq-q .sign::after {
  content: "";
  position: absolute;
  background: var(--bamboo);
  border-radius: 2px;
  transition: transform 0.4s var(--ease-spring), opacity 0.3s var(--ease);
}
.faq-q .sign::before { left: 0; top: 7px; width: 16px; height: 2px; }
.faq-q .sign::after { left: 7px; top: 0; width: 2px; height: 16px; }
.faq-item.is-open .faq-q .sign::after { transform: rotate(90deg); opacity: 0; }
.faq-item.is-open .faq-q .sign::before { background: var(--cinnabar); }
.faq-a {
  overflow: hidden;
  transition: max-height 0.52s var(--ease-out), opacity 0.4s var(--ease);
}
.js .faq-a { max-height: 0; opacity: 0; }
.js .faq-item.is-open .faq-a { opacity: 1; }
.faq-a p {
  margin: 0;
  padding: 0 20px 20px;
  font-size: 15.2px;
  line-height: 2.05;
  color: var(--ink-3);
}

/* ==========================================================================
   11. 页脚
   ========================================================================== */
.site-footer {
  position: relative;
  margin-top: clamp(56px, 7vw, 96px);
  padding: clamp(46px, 5vw, 68px) 0 0;
  color: rgba(255, 253, 247, 0.74);
  background: linear-gradient(165deg, #2b3a30, #22302a 55%, #1b2621);
  overflow: hidden;
}
/* 卷云顶饰 */
.site-footer::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 14px;
  background-image: var(--meander-gold);
  background-repeat: repeat-x;
  opacity: 0.4;
}
.site-footer::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(50% 60% at 88% 0%, rgba(127, 177, 146, 0.18), transparent 70%),
    radial-gradient(40% 50% at 6% 100%, rgba(184, 148, 90, 0.14), transparent 70%);
  pointer-events: none;
}
.footer-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: 34px;
  padding-bottom: 40px;
}
.footer-brand { display: flex; align-items: center; gap: 14px; }
.footer-brand img {
  width: 50px; height: 50px;
  border-radius: 50%;
  background: rgba(255, 253, 247, 0.9);
  padding: 3px;
}
.footer-brand strong {
  display: block;
  font-family: var(--font-kai);
  font-size: 20px;
  letter-spacing: 0.12em;
  color: #fff;
}
.footer-brand span {
  font-family: var(--font-sans);
  font-size: 11.5px;
  letter-spacing: 0.2em;
  color: var(--gold-2);
}
.footer-about {
  margin: 18px 0 0;
  max-width: 44ch;
  font-size: 14.5px;
  line-height: 2;
  color: rgba(255, 253, 247, 0.6);
}
.footer-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}
.footer-col h4 {
  margin: 0 0 14px;
  font-size: 15px;
  letter-spacing: 0.16em;
  color: #fff;
}
.footer-col ul { margin: 0; padding: 0; list-style: none; }
.footer-col li { margin-bottom: 9px; }
.footer-col a {
  font-size: 14.5px;
  color: rgba(255, 253, 247, 0.66);
  transition: color 0.3s var(--ease), padding-left 0.34s var(--ease-out);
}
.footer-col a:hover { color: var(--gold-2); padding-left: 8px; }
.footer-contact { font-size: 14.5px; line-height: 2.1; color: rgba(255, 253, 247, 0.66); }
.footer-contact a { color: var(--gold-2); }
.footer-contact a:hover { color: #fff; }

.footer-bottom {
  position: relative;
  z-index: 1;
  /* 使用长写，避免覆盖 .container 的左右内边距 */
  padding-top: 22px;
  padding-bottom: 26px;
  border-top: 1px solid rgba(255, 253, 247, 0.12);
  display: flex;
  flex-wrap: wrap;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  text-align: center;
  font-family: var(--font-sans);
  font-size: 12.5px;
  line-height: 1.9;
  letter-spacing: 0.06em;
  color: rgba(255, 253, 247, 0.5);
}
.footer-bottom p { margin: 0; }

/* 版权行 */
.footer-copy { color: rgba(255, 253, 247, 0.56); }

/* 备案号栏位：未填写时整行隐藏，不留空白；填写后与版权行同列居中。
   窄屏逐条竖排（避免长号码溢出），宽屏并排并以圆点分隔。 */
.footer-icp {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  max-width: 100%;
  color: rgba(255, 253, 247, 0.48);
}
.footer-icp[hidden] { display: none; }
.footer-icp a {
  color: rgba(255, 253, 247, 0.64);
  border-bottom: 1px solid rgba(255, 253, 247, 0.2);
  transition: color 0.3s var(--ease), border-color 0.3s var(--ease);
}
.footer-icp a:hover,
.footer-icp a:focus-visible {
  color: var(--gold-2);
  border-bottom-color: rgba(184, 148, 90, 0.65);
}
.footer-icp-sep { display: none; }

/* ==========================================================================
   12. 悬浮组件
   ========================================================================== */
/* 返回顶部：太极按钮 */
.to-top {
  position: fixed;
  right: 18px; bottom: 22px;
  z-index: 880;
  width: 52px; height: 52px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid var(--line-2);
  background: rgba(255, 253, 247, 0.94);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  color: var(--bamboo);
  cursor: pointer;
  box-shadow: var(--shadow-m);
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px) scale(0.9);
  transition: opacity 0.4s var(--ease), visibility 0.4s, transform 0.44s var(--ease-spring),
              background 0.34s var(--ease), color 0.34s var(--ease);
}
.to-top.is-visible { opacity: 1; visibility: visible; transform: translateY(0) scale(1); }
.to-top:hover { background: var(--bamboo); color: #fff; border-color: var(--bamboo); }
.to-top svg { width: 26px; height: 26px; }
.to-top svg .taiji-half { transition: transform 0.7s var(--ease); }

/* 飘落竹叶 */
.petals {
  position: fixed;
  inset: 0;
  z-index: 3;
  pointer-events: none;
  overflow: hidden;
}
.petal {
  position: absolute;
  top: -8vh;
  border-radius: 0 100% 0 100%;
  opacity: 0;
  will-change: transform, opacity;
  animation-name: fall;
  animation-timing-function: linear;
  animation-iteration-count: infinite;
}

/* 底部移动操作条 */
.mobile-bar {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 890;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  background: rgba(255, 253, 247, 0.97);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-top: 1px solid var(--line);
  box-shadow: 0 -6px 22px -14px rgba(35, 40, 33, 0.4);
  padding-bottom: env(safe-area-inset-bottom, 0);
  transform: translateY(110%);
  transition: transform 0.5s var(--ease-out);
}
.mobile-bar.is-visible { transform: translateY(0); }
.mobile-bar a {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  padding: 9px 4px 10px;
  font-family: var(--font-sans);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--ink-3);
  border-right: 1px solid var(--line);
  transition: color 0.28s var(--ease), background 0.28s var(--ease);
}
.mobile-bar a:last-child { border-right: 0; }
.mobile-bar a:hover, .mobile-bar a:active { color: var(--bamboo); background: var(--bamboo-mist); }
.mobile-bar svg { width: 21px; height: 21px; }
.mobile-bar .primary { color: var(--bamboo); font-weight: 600; }

/* ==========================================================================
   13. 动画与关键帧
   ========================================================================== */
@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-16px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes inkIn {
  0%   { opacity: 0; transform: translateY(0.5em) rotate(4deg); filter: blur(6px); }
  60%  { opacity: 1; filter: blur(0); }
  100% { opacity: 1; transform: translateY(0) rotate(0); filter: blur(0); }
}
@keyframes brush {
  from { transform: scaleX(0); }
  to   { transform: scaleX(1); }
}
@keyframes stamp {
  0%   { opacity: 0; transform: rotate(-11deg) scale(0.4); }
  55%  { opacity: 1; transform: rotate(-6deg) scale(1.14); }
  78%  { transform: rotate(-12deg) scale(0.96); }
  100% { opacity: 0.92; transform: rotate(-11deg) scale(1); }
}
@keyframes spin {
  to { transform: rotate(360deg); }
}
@keyframes drift {
  0%   { transform: translate3d(0, 0, 0); }
  50%  { transform: translate3d(24px, -12px, 0); }
  100% { transform: translate3d(0, 0, 0); }
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(168, 50, 50, 0.5); }
  70%      { box-shadow: 0 0 0 8px rgba(168, 50, 50, 0); }
}
@keyframes eqBeat {
  0%, 100% { height: 20%; }
  50%      { height: 100%; }
}
@keyframes fall {
  0% {
    opacity: 0;
    transform: translate3d(0, -10vh, 0) rotate(0deg);
  }
  8%  { opacity: var(--petal-opacity, 0.5); }
  85% { opacity: var(--petal-opacity, 0.5); }
  100% {
    opacity: 0;
    transform: translate3d(var(--petal-sway, 60px), 112vh, 0) rotate(var(--petal-spin, 540deg));
  }
}
@keyframes floatUp {
  from { opacity: 0; transform: translateY(22px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* 滚动揭示 —— 仅在脚本可用时隐藏，避免无 JS 环境内容不可见 */
.reveal {
  transition: opacity 0.85s var(--ease-out), transform 0.85s var(--ease-out);
}
.js .reveal { opacity: 0; transform: translateY(26px); }
.js .reveal.is-in-view { opacity: 1; transform: none; }
.reveal-d1 { transition-delay: 0.09s; }
.reveal-d2 { transition-delay: 0.18s; }
.reveal-d3 { transition-delay: 0.27s; }
.reveal-d4 { transition-delay: 0.36s; }
.reveal-d5 { transition-delay: 0.45s; }
.reveal-d6 { transition-delay: 0.54s; }

/* 页面进入 */
.page-enter {
  animation: floatUp 0.7s var(--ease-out) both;
}

/* ==========================================================================
   14. 响应式断点
   ========================================================================== */

/* —— 平板（≥640px）—— */
@media (min-width: 640px) {
  .container { padding: 0 30px; }
  .grid--2 { grid-template-columns: repeat(2, 1fr); }
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
  .svc-grid { grid-template-columns: repeat(3, 1fr); }
  .wuyin-grid { grid-template-columns: repeat(5, 1fr); }
  .contact-grid { grid-template-columns: 1fr 1fr; }
  .flow { grid-template-columns: repeat(2, 1fr); }
  .footer-cols { grid-template-columns: repeat(3, 1fr); }
  /* 页脚备案号：宽屏并排显示并以圆点分隔 */
  .footer-icp { flex-direction: row; flex-wrap: wrap; gap: 4px 10px; }
  .footer-icp-sep { display: inline; opacity: 0.4; }
  .hero { padding-top: calc(var(--header-h) + 78px); padding-bottom: 96px; }
  .to-top { right: 26px; bottom: 30px; width: 56px; height: 56px; }
}

/* —— 移动端：为底部固定操作条预留空间 —— */
@media (max-width: 899px) {
  body { padding-bottom: 62px; }
  .to-top { bottom: 78px; }
}

/* —— 桌面（≥900px）—— */
@media (min-width: 900px) {
  .grid--3 { grid-template-columns: repeat(3, 1fr); }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .svc-grid { grid-template-columns: repeat(4, 1fr); }
  .article-layout { grid-template-columns: minmax(0, 1fr) 312px; gap: 46px; }
  .footer-inner { grid-template-columns: 1.15fr 1.5fr; gap: 46px; }
  /* 页脚底栏保持居中，仅适当放宽行距 */
  .footer-bottom { gap: 12px; }
  .mobile-bar { display: none; }
  .player { grid-template-columns: 1fr; }
  .player-volume { display: flex; }
}

/* —— 宽屏（≥1080px）—— */
@media (min-width: 1080px) {
  .grid--4 { grid-template-columns: repeat(4, 1fr); }
  .main-nav { display: block; }
  .nav-toggle { display: none; }
  .mobile-drawer, .drawer-mask { display: none; }
  .hero-inner { max-width: 820px; }
}

/* —— 超宽（≥1400px）—— */
@media (min-width: 1400px) {
  :root { --wrap: 1260px; }
}

/* —— 小屏手机（≤400px）—— */
@media (max-width: 400px) {
  .brand-name { font-size: 17.5px; letter-spacing: 0.08em; }
  .brand-sub { font-size: 9.5px; letter-spacing: 0.16em; }
  .brand-logo { width: 40px; height: 40px; }
  .hero-seal { display: none; }
  .svc-grid { grid-template-columns: 1fr; }
  .footer-cols { grid-template-columns: 1fr; }
  .btn { padding: 12px 22px; font-size: 14.5px; }
}

/* —— 横屏矮视口 —— */
@media (max-height: 520px) and (orientation: landscape) {
  .hero { padding-top: calc(var(--header-h) + 30px); padding-bottom: 46px; }
  .hero-seal { display: none; }
}

/* ==========================================================================
   15. 动效降级 & 打印
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .reveal, .js .reveal { opacity: 1 !important; transform: none !important; }
  .hero-title .ch { opacity: 1; transform: none; }
  .hero-seal { opacity: 0.92; transform: rotate(-11deg); }
  .hero-title em::after { transform: scaleX(1); }
  .petals { display: none; }
}

@media print {
  .site-header, .site-footer, .to-top, .mobile-bar, .petals,
  .article-side, .hero-actions, .player-controls { display: none !important; }
  body { background: #fff; color: #000; }
  .card, .prose { box-shadow: none; border-color: #ccc; }
  .reveal { opacity: 1 !important; transform: none !important; }
}