/* ================================================================
   UFTT · 有方集团智库&政策研究院  ——  全站样式
   主题：藏蓝 + 香槟金  |  字体：衬线为主  |  风格：高端智库
   ================================================================ */

/* ---------- 0. 字体引入 ---------- */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,500;0,600;0,700;0,800;0,900;1,400;1,700&family=Inter:wght@300;400;500;600;700&family=Noto+Serif+SC:wght@300;400;500;600;700;900&display=swap');

/* ---------- 1. CSS 变量 ---------- */
:root{
  /* 品牌色 */
  --c-navy:        #1B2A4A;      /* 主色：藏蓝 */
  --c-navy-2:      #0F1B33;      /* 深一档：hero/页脚/研报封面 */
  --c-navy-3:      #243556;      /* 浅一档：hover/卡片 */
  --c-gold:        #C9A96E;      /* 香槟金：点缀 */
  --c-gold-2:      #B89355;      /* 深金：按压 */
  --c-gold-soft:   #E5D5A8;      /* 浅金：分隔/装饰 */
  --c-cream:       #F7F5F0;      /* 米白：背景 */
  --c-paper:       #FBFAF6;      /* 纸白：卡片 */
  --c-line:        #E3DED2;      /* 细线：分割 */
  --c-text:        #2A2A2A;      /* 正文 */
  --c-text-soft:   #5C5C5C;      /* 次要文字 */
  --c-text-mute:   #8A8A8A;      /* 辅助 */
  --c-white:       #FFFFFF;

  /* 字体 */
  --f-serif-en:    'Playfair Display', 'Times New Roman', serif;
  --f-serif-cn:    'Noto Serif SC', 'Source Han Serif SC', 'Songti SC', 'SimSun', serif;
  --f-sans-en:     'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --f-sans-cn:     'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', sans-serif;

  /* 排版 */
  --max-w:         1280px;
  --gap-1:         8px;
  --gap-2:         16px;
  --gap-3:         24px;
  --gap-4:         40px;
  --gap-5:         64px;
  --gap-6:         96px;
  --radius-sm:     4px;
  --radius:        6px;
  --radius-lg:     12px;
  --shadow-1:      0 2px 8px rgba(15, 27, 51, 0.04);
  --shadow-2:      0 8px 24px rgba(15, 27, 51, 0.08);
  --shadow-3:      0 16px 48px rgba(15, 27, 51, 0.12);
}

/* ---------- 2. Reset ---------- */
*,*::before,*::after{ box-sizing:border-box; }
html, body{ margin:0; padding:0; }
html{ scroll-behavior:smooth; -webkit-text-size-adjust:100%; }
body{
  font-family: var(--f-sans-cn);
  font-size: 15px;
  line-height: 1.7;
  color: var(--c-text);
  background: var(--c-cream);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}
img, svg, video{ display:block; max-width:100%; height:auto; }
a{ color:inherit; text-decoration:none; transition: color .25s; }
button{ font-family:inherit; cursor:pointer; border:none; background:none; }
ul, ol{ margin:0; padding:0; list-style:none; }
h1, h2, h3, h4, h5, h6{ margin:0; font-weight:600; line-height:1.3; }

/* ---------- 3. 工具类 ---------- */
.container{ max-width: var(--max-w); margin:0 auto; padding:0 24px; }
.serif{ font-family: var(--f-serif-cn); }
.serif-en{ font-family: var(--f-serif-en); }
.text-gold{ color: var(--c-gold); }
.text-navy{ color: var(--c-navy); }
.text-soft{ color: var(--c-text-soft); }
.text-mute{ color: var(--c-text-mute); }
.text-white{ color: var(--c-white); }
.text-center{ text-align:center; }
.divider-gold{ width:36px; height:1px; background: var(--c-gold); margin: 16px 0; }
.divider-gold-center{ margin: 16px auto; }
.divider-line{ width:100%; height:1px; background: var(--c-line); margin: 24px 0; }
.eyebrow{
  font-family: var(--f-serif-en);
  font-style: italic;
  font-weight: 400;
  letter-spacing: .12em;
  font-size: 12px;
  text-transform: uppercase;
  color: var(--c-gold);
}
.eyebrow-light{
  color: var(--c-gold-soft);
}

/* ---------- 4. 按钮 ---------- */
.btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  font-family: var(--f-sans-cn);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: .04em;
  border-radius: 2px;
  transition: all .3s ease;
  cursor: pointer;
  white-space: nowrap;
  border: 1px solid transparent;
}
.btn-primary{
  background: var(--c-navy);
  color: var(--c-white);
  border-color: var(--c-navy);
}
.btn-primary:hover{
  background: var(--c-navy-3);
  border-color: var(--c-navy-3);
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(27, 42, 74, .25);
}
.btn-gold{
  background: var(--c-gold);
  color: var(--c-navy-2);
  border-color: var(--c-gold);
  font-weight: 600;
}
.btn-gold:hover{
  background: var(--c-gold-2);
  border-color: var(--c-gold-2);
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(201, 169, 110, .35);
}
.btn-outline-light{
  background: transparent;
  color: var(--c-white);
  border-color: rgba(255,255,255,.5);
}
.btn-outline-light:hover{
  background: var(--c-white);
  color: var(--c-navy);
  border-color: var(--c-white);
}
.btn-outline-navy{
  background: transparent;
  color: var(--c-navy);
  border-color: var(--c-navy);
}
.btn-outline-navy:hover{
  background: var(--c-navy);
  color: var(--c-white);
}
.btn-ghost{
  background: transparent;
  color: var(--c-navy);
  padding: 8px 0;
  border-bottom: 1px solid var(--c-navy);
  border-radius: 0;
}
.btn-ghost:hover{ color: var(--c-gold); border-color: var(--c-gold); }
.btn-sm{ padding: 10px 20px; font-size: 13px; }
.btn-lg{ padding: 18px 40px; font-size: 15px; }
.btn-arrow::after{
  content: '→';
  margin-left: 4px;
  transition: transform .3s;
}
.btn-arrow:hover::after{ transform: translateX(4px); }

/* ---------- 5. 顶部导航 ---------- */
.nav-top{
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(247, 245, 240, 0.92);
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  border-bottom: 1px solid var(--c-line);
  transition: all .3s;
}
.nav-top.is-scrolled{
  box-shadow: 0 2px 12px rgba(15, 27, 51, .06);
}
.nav-top__inner{
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  height: 72px;
  gap: 40px;
}
.nav-top__brand{
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.nav-top__brand-logo{
  width: 40px;
  height: 40px;
  object-fit: contain;
}
.nav-top__brand-text{
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}
.nav-top__brand-cn{
  font-family: var(--f-serif-cn);
  font-weight: 600;
  font-size: 15px;
  color: var(--c-navy);
  letter-spacing: .04em;
}
.nav-top__brand-en{
  font-family: var(--f-serif-en);
  font-style: italic;
  font-size: 10px;
  color: var(--c-gold);
  letter-spacing: .14em;
  text-transform: uppercase;
  margin-top: 2px;
}
.nav-top__menu{
  display: flex;
  align-items: center;
  gap: 14px;
  flex: 1;
  justify-content: center;
  flex-wrap: nowrap;
}
.nav-top__menu a{
  position: relative;
  font-size: 14px;
  color: var(--c-navy);
  padding: 8px 0;
  font-weight: 500;
  white-space: nowrap;
  transition: color .25s;
}
.nav-top__menu a::after{
  content: '';
  position: absolute;
  bottom: 0; left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 1px;
  background: var(--c-gold);
  transition: width .3s;
}
.nav-top__menu a:hover,
.nav-top__menu a.is-active{
  color: var(--c-gold);
}
.nav-top__menu a:hover::after,
.nav-top__menu a.is-active::after{
  width: 24px;
}
.nav-top__right{
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
}
.nav-top__ext{
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--c-text-soft);
  padding: 6px 10px;
  border: 1px solid var(--c-line);
  border-radius: 2px;
  transition: all .25s;
}
.nav-top__ext:hover{
  color: var(--c-navy);
  border-color: var(--c-navy);
}
.nav-top__ext::after{
  content: '↗';
  font-size: 11px;
  opacity: .5;
}
.nav-top__cta{
  background: var(--c-navy);
  color: var(--c-white);
  padding: 10px 22px;
  font-size: 13px;
  font-weight: 500;
  border-radius: 2px;
  transition: all .25s;
}
.nav-top__cta:hover{
  background: var(--c-gold);
  color: var(--c-navy-2);
}
.nav-burger{
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: 8px;
}
.nav-burger span{
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--c-navy);
  transition: all .3s;
}
.nav-burger.is-open span:nth-child(1){ transform: translateY(5.5px) rotate(45deg); }
.nav-burger.is-open span:nth-child(2){ opacity: 0; }
.nav-burger.is-open span:nth-child(3){ transform: translateY(-5.5px) rotate(-45deg); }


/* ---------- 5b. 下拉导航（桌面端 hover / 父级父项 active） ---------- */
.nav-top__menu > .nav-item{
  position: relative;
  display: flex;
  align-items: center;
}
.nav-top__menu > .nav-item > a{
  display: inline-flex;
  align-items: center;
  gap: 4px;
  white-space: nowrap;
}
.nav-caret{
  display: inline-block;
  width: 0; height: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 4px solid currentColor;
  margin-left: 4px;
  margin-top: 2px;
  opacity: .55;
  transition: transform .25s, opacity .25s;
}
.nav-item:hover > a > .nav-caret{ transform: rotate(180deg); opacity: 1; }
.nav-dropdown{
  position: absolute;
  top: calc(100% + 4px);
  left: 50%;
  transform: translate(-50%, 6px);
  min-width: 168px;
  background: var(--c-white);
  border: 1px solid var(--c-line);
  border-top: 2px solid var(--c-gold);
  box-shadow: 0 12px 32px rgba(15, 27, 51, .08);
  border-radius: 4px;
  padding: 8px 0;
  list-style: none;
  margin: 0;
  z-index: 110;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity .2s, transform .2s, visibility .2s;
}
.nav-item:hover > .nav-dropdown,
.nav-item:focus-within > .nav-dropdown{
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translate(-50%, 0);
}
.nav-item.is-active > a{ color: var(--c-gold); }
.nav-item.is-active > a::after{ width: 24px; }
.nav-dropdown li{ margin: 0; padding: 0; }
.nav-dropdown a{
  display: block;
  padding: 10px 18px;
  font-size: 14px;
  color: var(--c-navy);
  white-space: nowrap;
  position: relative;
  font-weight: 500;
  transition: background .2s, color .2s;
}
.nav-dropdown a:hover,
.nav-dropdown a.is-active{
  background: var(--c-cream);
  color: var(--c-gold);
}
.nav-dropdown a::after{ display: none; }

/* ---------- 5c. 移动端下拉分组（<details>） ---------- */
.mobile-menu .mobile-group{
  border-bottom: 1px solid var(--c-line);
  margin: 0;
}
.mobile-menu .mobile-group > summary{
  list-style: none;
  cursor: pointer;
  padding: 12px 24px;
  font-size: 15px;
  color: var(--c-navy);
  font-weight: 500;
  position: relative;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}
.mobile-menu .mobile-group > summary::-webkit-details-marker{ display: none; }
.mobile-menu .mobile-group > summary::after{
  content: '+';
  position: absolute;
  right: 24px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 18px;
  font-weight: 400;
  color: var(--c-text-mute);
  transition: transform .25s;
}
.mobile-menu .mobile-group[open] > summary::after{
  content: '−';
  transform: translateY(-50%) rotate(0);
}
.mobile-menu .mobile-group > summary:hover{ color: var(--c-gold); }
.mobile-menu .mobile-group.is-open > summary{ color: var(--c-gold); }
.mobile-menu .mobile-group > a{
  padding-left: 40px !important;
  font-size: 14px !important;
  background: var(--c-paper);
}


.mobile-menu{
  display: none;
  position: fixed;
  top: 72px; left: 0; right: 0;
  background: var(--c-cream);
  border-top: 1px solid var(--c-line);
  border-bottom: 1px solid var(--c-line);
  z-index: 99;
  padding: 16px 0;
  max-height: calc(100vh - 72px);
  overflow-y: auto;
}
.mobile-menu.is-open{ display: block; }
.mobile-menu a{
  display: block;
  padding: 12px 24px;
  font-size: 15px;
  color: var(--c-navy);
  border-bottom: 1px solid var(--c-line);
}
.mobile-menu a:hover{ color: var(--c-gold); background: rgba(201, 169, 110, .05); }
.mobile-menu__cta{
  margin: 16px 24px 8px;
  display: block;
  text-align: center;
  padding: 14px;
  background: var(--c-navy);
  color: var(--c-white);
  border-radius: 2px;
}

/* ---------- 6. Hero 区 ---------- */
.hero{
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--c-navy-2) 0%, var(--c-navy) 60%, var(--c-navy-3) 100%);
  overflow: hidden;
  padding: 120px 0 80px;
  color: var(--c-white);
}
.hero::before{
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 30%, rgba(201, 169, 110, .14) 0%, transparent 55%),
    radial-gradient(ellipse at 80% 70%, rgba(201, 169, 110, .08) 0%, transparent 50%);
  pointer-events: none;
}
.hero::after{
  content: '';
  position: absolute;
  top: 0; right: 0; bottom: 0;
  width: 50%;
  background: url('../images/tech-neural.jpg') center/cover no-repeat;
  opacity: .25;
  mask-image: linear-gradient(to right, transparent, black 40%);
  -webkit-mask-image: linear-gradient(to right, transparent, black 40%);
}
.hero__inner{
  position: relative;
  z-index: 2;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 80px;
  align-items: center;
}
.hero__content{ max-width: 720px; }
.hero__eyebrow{
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
  font-family: var(--f-serif-en);
  font-style: italic;
  font-size: 13px;
  letter-spacing: .18em;
  color: var(--c-gold-soft);
  text-transform: uppercase;
}
.hero__eyebrow::before{
  content: '';
  display: block;
  width: 32px;
  height: 1px;
  background: var(--c-gold);
}
.hero__title{
  font-family: var(--f-serif-cn);
  font-size: clamp(34px, 4.4vw, 56px);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: .02em;
  color: var(--c-white);
  margin-bottom: 16px;
}
.hero__title-en{
  font-family: var(--f-serif-en);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(20px, 2vw, 26px);
  color: var(--c-gold-soft);
  letter-spacing: .04em;
  margin-bottom: 32px;
  line-height: 1.4;
}
.hero__slogan{
  font-family: var(--f-serif-cn);
  font-size: 18px;
  color: var(--c-gold-soft);
  letter-spacing: .08em;
  margin-bottom: 40px;
  padding-left: 20px;
  border-left: 1px solid var(--c-gold);
  line-height: 1.7;
}
.hero__cta{
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 56px;
}
.hero__trust{
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  padding-top: 40px;
  border-top: 1px solid rgba(255, 255, 255, .12);
}
.hero__trust-num{
  font-family: var(--f-serif-en);
  font-size: clamp(28px, 3vw, 38px);
  font-weight: 500;
  color: var(--c-gold);
  line-height: 1;
  margin-bottom: 8px;
}
.hero__trust-label{
  font-size: 12px;
  color: rgba(255, 255, 255, .65);
  letter-spacing: .04em;
}
.hero__side{
  position: relative;
  height: 480px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero__seal{
  width: 360px;
  height: 360px;
  border: 1px solid rgba(201, 169, 110, .3);
  border-radius: 50%;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at center, rgba(27, 42, 74, .4) 0%, rgba(15, 27, 51, .8) 100%);
  backdrop-filter: blur(8px);
}
.hero__seal::before,
.hero__seal::after{
  content: '';
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(201, 169, 110, .15);
}
.hero__seal::before{ inset: 24px; }
.hero__seal::after{ inset: 48px; border-color: rgba(201, 169, 110, .08); }
.hero__seal-year{
  font-family: var(--f-serif-en);
  font-size: 96px;
  font-weight: 700;
  color: var(--c-gold);
  line-height: 1;
  letter-spacing: -.04em;
}
.hero__seal-text{
  margin-top: 12px;
  font-family: var(--f-serif-en);
  font-style: italic;
  font-size: 13px;
  letter-spacing: .24em;
  color: var(--c-gold-soft);
  text-transform: uppercase;
}
.hero__seal-line{
  width: 60px;
  height: 1px;
  background: var(--c-gold);
  margin: 18px 0;
}

/* 简版 Hero（用于内页顶部） */
.hero-page{
  position: relative;
  padding: 160px 0 80px;
  background: var(--c-navy-2);
  color: var(--c-white);
  overflow: hidden;
}
.hero-page::before{
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(15, 27, 51, .85) 0%, rgba(27, 42, 74, .65) 100%);
  z-index: 1;
}
.hero-page::after{
  content: '';
  position: absolute;
  top: 0; right: -10%; bottom: 0;
  width: 60%;
  background: url('../images/tech-bg.jpg') center/cover no-repeat;
  opacity: .3;
  z-index: 0;
}
.hero-page__inner{
  position: relative;
  z-index: 2;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}
.hero-page__eyebrow{
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  font-family: var(--f-serif-en);
  font-style: italic;
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--c-gold-soft);
  text-transform: uppercase;
}
.hero-page__eyebrow::before{
  content: '';
  display: block;
  width: 32px;
  height: 1px;
  background: var(--c-gold);
}
.hero-page__title{
  font-family: var(--f-serif-cn);
  font-size: clamp(32px, 4vw, 48px);
  font-weight: 600;
  line-height: 1.25;
  margin-bottom: 12px;
}
.hero-page__title-en{
  font-family: var(--f-serif-en);
  font-style: italic;
  font-size: 18px;
  color: var(--c-gold-soft);
  margin-bottom: 24px;
}
.hero-page__desc{
  font-size: 16px;
  line-height: 1.8;
  color: rgba(255,255,255,.78);
  max-width: 720px;
}
.breadcrumb{
  display: flex;
  gap: 8px;
  font-size: 12px;
  color: rgba(255,255,255,.6);
  margin-bottom: 24px;
  letter-spacing: .04em;
}
.breadcrumb a:hover{ color: var(--c-gold); }
.breadcrumb span{ color: var(--c-gold); }

/* ---------- 7. Section 通用 ---------- */
.section{ padding: 96px 0; }
.section-sm{ padding: 64px 0; }
.section-lg{ padding: 128px 0; }
.section--cream{ background: var(--c-cream); }
.section--paper{ background: var(--c-paper); }
.section--white{ background: var(--c-white); }
.section--navy{ background: var(--c-navy); color: var(--c-white); }
.section--navy-2{ background: var(--c-navy-2); color: var(--c-white); }

.section__head{
  max-width: 720px;
  margin: 0 auto 64px;
  text-align: center;
}
.section__head--left{ margin-left: 0; text-align: left; }
.section__eyebrow{
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--f-serif-en);
  font-style: italic;
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--c-gold);
  text-transform: uppercase;
  margin-bottom: 16px;
}
.section__eyebrow::before{
  content: '';
  display: block;
  width: 24px;
  height: 1px;
  background: var(--c-gold);
}
.section--navy .section__eyebrow,
.section--navy-2 .section__eyebrow{ color: var(--c-gold-soft); }
.section--navy .section__eyebrow::before,
.section--navy-2 .section__eyebrow::before{ background: var(--c-gold-soft); }
.section__title{
  font-family: var(--f-serif-cn);
  font-size: clamp(28px, 3.4vw, 40px);
  font-weight: 600;
  line-height: 1.3;
  color: var(--c-navy);
  margin-bottom: 8px;
  letter-spacing: .02em;
}
.section--navy .section__title,
.section--navy-2 .section__title{ color: var(--c-white); }
.section__title-en{
  font-family: var(--f-serif-en);
  font-style: italic;
  font-size: 16px;
  color: var(--c-text-mute);
  margin-bottom: 24px;
}
.section--navy .section__title-en,
.section--navy-2 .section__title-en{ color: var(--c-gold-soft); }
.section__desc{
  font-size: 15px;
  line-height: 1.85;
  color: var(--c-text-soft);
  max-width: 640px;
  margin: 0 auto;
}
.section--navy .section__desc,
.section--navy-2 .section__desc{ color: rgba(255,255,255,.7); }

/* ---------- 8. 数据墙（智库报告风） ---------- */
.datawall{
  background: var(--c-navy-2);
  color: var(--c-white);
  padding: 88px 0;
  position: relative;
  overflow: hidden;
}
.datawall::before{
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(15, 27, 51, .92), rgba(15, 27, 51, .96)),
    url('../images/tech-bg.jpg') center/cover;
  background-blend-mode: multiply;
  z-index: 0;
}
.datawall__inner{ position: relative; z-index: 1; }
.datawall__head{
  text-align: center;
  margin-bottom: 64px;
}
.datawall__eyebrow{
  font-family: var(--f-serif-en);
  font-style: italic;
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--c-gold-soft);
  text-transform: uppercase;
  margin-bottom: 16px;
}
.datawall__title{
  font-family: var(--f-serif-cn);
  font-size: clamp(26px, 3vw, 36px);
  font-weight: 500;
  color: var(--c-white);
  line-height: 1.4;
}
.datawall__title em{
  font-family: var(--f-serif-en);
  font-style: italic;
  color: var(--c-gold);
}
.datawall__grid{
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid rgba(201, 169, 110, .2);
}
.datawall__cell{
  padding: 40px 24px;
  border-right: 1px solid rgba(201, 169, 110, .15);
  border-bottom: 1px solid rgba(201, 169, 110, .15);
  position: relative;
}
.datawall__cell:nth-child(4n){ border-right: none; }
.datawall__num{
  font-family: var(--f-serif-en);
  font-size: clamp(40px, 4.5vw, 56px);
  font-weight: 500;
  color: var(--c-gold);
  line-height: 1;
  margin-bottom: 4px;
  letter-spacing: -.02em;
}
.datawall__num small{
  font-size: .5em;
  color: var(--c-gold-soft);
  font-weight: 400;
  margin-left: 4px;
}
.datawall__label{
  font-size: 14px;
  color: var(--c-white);
  margin-bottom: 4px;
  font-weight: 500;
}
.datawall__sub{
  font-size: 12px;
  color: rgba(255,255,255,.5);
  font-family: var(--f-serif-en);
  font-style: italic;
  letter-spacing: .04em;
}
.datawall__foot{
  text-align: center;
  margin-top: 32px;
  font-size: 12px;
  color: rgba(255,255,255,.5);
  font-family: var(--f-serif-en);
  font-style: italic;
  letter-spacing: .04em;
}
.datawall__foot::before{
  content: '◇ ';
  color: var(--c-gold);
}

/* ---------- 9. 卡片（通用） ---------- */
.card{
  background: var(--c-white);
  border: 1px solid var(--c-line);
  border-radius: 4px;
  padding: 32px;
  transition: all .3s;
}
.card:hover{
  border-color: var(--c-gold);
  box-shadow: 0 12px 32px rgba(15, 27, 51, .08);
  transform: translateY(-2px);
}

.research-grid{
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.research-card{
  position: relative;
  background: var(--c-white);
  border: 1px solid var(--c-line);
  padding: 40px;
  display: flex;
  flex-direction: column;
  transition: all .35s;
  overflow: hidden;
}
.research-card::before{
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--c-gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .4s;
}
.research-card:hover{
  border-color: var(--c-gold);
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(15, 27, 51, .1);
}
.research-card:hover::before{ transform: scaleX(1); }
.research-card__no{
  font-family: var(--f-serif-en);
  font-style: italic;
  font-size: 48px;
  color: var(--c-gold);
  line-height: 1;
  margin-bottom: 16px;
  font-weight: 400;
}
.research-card__title{
  font-family: var(--f-serif-cn);
  font-size: 22px;
  font-weight: 600;
  color: var(--c-navy);
  margin-bottom: 6px;
}
.research-card__title-en{
  font-family: var(--f-serif-en);
  font-style: italic;
  font-size: 13px;
  color: var(--c-text-mute);
  letter-spacing: .04em;
  margin-bottom: 16px;
}
.research-card__desc{
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-text-soft);
  margin-bottom: 24px;
  flex: 1;
}
.research-card__list{
  margin-bottom: 24px;
  border-top: 1px solid var(--c-line);
  padding-top: 16px;
}
.research-card__list li{
  position: relative;
  padding: 6px 0 6px 20px;
  font-size: 13px;
  color: var(--c-text-soft);
  line-height: 1.6;
}
.research-card__list li::before{
  content: '—';
  position: absolute;
  left: 0;
  color: var(--c-gold);
  font-weight: 500;
}
.research-card__more{
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--c-navy);
  font-weight: 500;
  letter-spacing: .04em;
  border-bottom: 1px solid var(--c-navy);
  padding-bottom: 2px;
  align-self: flex-start;
  transition: all .25s;
}
.research-card__more:hover{
  color: var(--c-gold);
  border-color: var(--c-gold);
}
.research-card__more::after{
  content: '→';
  transition: transform .3s;
}
.research-card:hover .research-card__more::after{
  transform: translateX(4px);
}

/* ---------- 10. 研报封面（深蓝+金） ---------- */
.report{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.report-card{
  position: relative;
  background: linear-gradient(180deg, var(--c-navy-3) 0%, #1c2c4a 100%);
  box-shadow: 0 8px 32px rgba(0,0,0,.4);
  color: var(--c-white);
  padding: 40px 32px;
  display: flex;
  flex-direction: column;
  min-height: 460px;
  border: 1px solid rgba(201, 169, 110, .35);
  overflow: hidden;
  transition: all .35s;
}
.report-card::before{
  content: '';
  position: absolute;
  top: 16px; right: 16px; bottom: 16px; left: 16px;
  border: 1px solid rgba(201, 169, 110, .25);
  pointer-events: none;
}
.report-card::after{
  content: '';
  position: absolute;
  top: 32px; right: 32px; bottom: 32px; left: 32px;
  border: 1px solid rgba(201, 169, 110, .12);
  pointer-events: none;
}
.report-card:hover{
  transform: translateY(-4px);
  border-color: var(--c-gold);
  box-shadow: 0 24px 48px rgba(15, 27, 51, .4);
}
.report-card__series{
  position: relative;
  z-index: 1;
  font-family: var(--f-serif-en);
  font-style: italic;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--c-gold);
  text-transform: uppercase;
  margin-bottom: 8px;
}
.report-card__no{
  position: relative;
  z-index: 1;
  font-family: var(--f-serif-en);
  font-size: 14px;
  color: var(--c-gold-soft);
  letter-spacing: .12em;
  margin-bottom: 32px;
}
.report-card__title{
  position: relative;
  z-index: 1;
  font-family: var(--f-serif-cn);
  font-size: 22px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--c-gold);
  margin-bottom: 16px;
  flex: 1;
  letter-spacing: .02em;
}
.report-card__desc{
  position: relative;
  z-index: 1;
  font-size: 13px;
  line-height: 1.7;
  color: rgba(255,255,255,.7);
  margin-bottom: 24px;
  border-top: 1px solid rgba(201, 169, 110, .2);
  padding-top: 16px;
}
.report-card__foot{
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid rgba(201, 169, 110, .15);
  font-size: 12px;
  color: rgba(255,255,255,.5);
  font-family: var(--f-serif-en);
  font-style: italic;
  letter-spacing: .04em;
}
.report-card__cta{
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--c-gold);
  border-color: var(--c-gold);
}

/* 研报预览 + 付费墙 */
.report-preview{
  position: relative;
  background: var(--c-paper);
  padding: 32px;
  border: 1px solid var(--c-line);
}
.report-preview__head{
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--c-line);
  margin-bottom: 24px;
  font-family: var(--f-serif-en);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--c-gold);
  text-transform: uppercase;
}
.report-preview__body{
  font-size: 14px;
  line-height: 1.9;
  color: var(--c-text-soft);
  max-height: 240px;
  overflow: hidden;
  position: relative;
}
.report-preview__body::after{
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 80px;
  background: linear-gradient(to bottom, transparent, var(--c-paper));
  pointer-events: none;
}
.report-preview__paywall{
  text-align: center;
  padding: 32px 24px;
  margin-top: -80px;
  position: relative;
  z-index: 2;
  background: linear-gradient(to bottom, transparent, var(--c-paper) 50%);
}
.report-preview__lock{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--c-gold);
  text-transform: uppercase;
  font-family: var(--f-serif-en);
  font-style: italic;
  margin-bottom: 12px;
}
.report-preview__lock::before{
  content: '◇';
  font-size: 14px;
  font-style: normal;
}
.report-preview__msg{
  font-family: var(--f-serif-cn);
  font-size: 15px;
  color: var(--c-navy);
  margin-bottom: 20px;
  font-weight: 500;
}

/* ---------- 11. 会员套餐 ---------- */
.plans{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border: 1px solid var(--c-line);
  background: var(--c-white);
  border-radius: 4px;
  overflow: hidden;
}
.plan{
  padding: 48px 36px;
  border-right: 1px solid var(--c-line);
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all .3s;
}
.plan:last-child{ border-right: none; }
.plan:hover{
  background: var(--c-cream);
}
.plan--featured{
  background: var(--c-navy-2);
  color: var(--c-white);
}
.plan--featured:hover{ background: var(--c-navy-2); }
.plan__level{
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--f-serif-en);
  font-size: 14px;
  letter-spacing: .12em;
  color: var(--c-gold);
  text-transform: uppercase;
  margin-bottom: 8px;
}
.plan__level-mark{
  font-size: 22px;
  font-style: normal;
}
.plan__name{
  font-family: var(--f-serif-cn);
  font-size: 26px;
  font-weight: 600;
  color: var(--c-navy);
  margin-bottom: 4px;
}
.plan--featured .plan__name{ color: var(--c-white); }
.plan__name-en{
  font-family: var(--f-serif-en);
  font-style: italic;
  font-size: 13px;
  color: var(--c-text-mute);
  margin-bottom: 24px;
}
.plan--featured .plan__name-en{ color: var(--c-gold-soft); }
.plan__price{
  display: flex;
  align-items: baseline;
  gap: 4px;
  padding: 24px 0;
  border-top: 1px solid var(--c-line);
  border-bottom: 1px solid var(--c-line);
  margin-bottom: 24px;
}
.plan--featured .plan__price{
  border-color: rgba(201, 169, 110, .25);
}
.plan__price-cny{
  font-size: 16px;
  color: var(--c-text-soft);
}
.plan--featured .plan__price-cny{ color: var(--c-gold-soft); }
.plan__price-num{
  font-family: var(--f-serif-en);
  font-size: 48px;
  font-weight: 500;
  color: var(--c-navy);
  line-height: 1;
  letter-spacing: -.02em;
}
.plan--featured .plan__price-num{ color: var(--c-gold); }
.plan__price-unit{
  font-size: 14px;
  color: var(--c-text-soft);
}
.plan--featured .plan__price-unit{ color: var(--c-gold-soft); }
.plan__price-year{
  margin-left: auto;
  font-size: 12px;
  color: var(--c-text-mute);
  font-family: var(--f-serif-en);
  font-style: italic;
}
.plan--featured .plan__price-year{ color: rgba(255,255,255,.6); }
.plan__price-year strong{
  font-size: 18px;
  color: var(--c-navy);
  font-weight: 500;
  font-style: normal;
  font-family: var(--f-serif-cn);
}
.plan--featured .plan__price-year strong{ color: var(--c-gold); }
.plan__list{
  margin-bottom: 32px;
  flex: 1;
}
.plan__list li{
  position: relative;
  padding: 10px 0 10px 24px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--c-text-soft);
  border-bottom: 1px dashed var(--c-line);
}
.plan--featured .plan__list li{
  color: rgba(255,255,255,.85);
  border-color: rgba(201, 169, 110, .15);
}
.plan__list li::before{
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--c-gold);
  font-weight: 600;
}
.plan__list li strong{
  display: block;
  font-weight: 600;
  color: var(--c-navy);
  font-size: 14px;
  margin-bottom: 2px;
}
.plan--featured .plan__list li strong{ color: var(--c-white); }
.plan__cta{ width: 100%; text-align: center; }
.plan__ribbon{
  position: absolute;
  top: 24px;
  right: -32px;
  background: var(--c-gold);
  color: var(--c-navy-2);
  font-size: 11px;
  padding: 4px 40px;
  font-family: var(--f-serif-en);
  font-style: italic;
  letter-spacing: .12em;
  transform: rotate(45deg);
  text-transform: uppercase;
  font-weight: 600;
}

/* ---------- 12. 通用组件：标签 / 面包屑 / 列表 ---------- */
.tag{
  display: inline-block;
  padding: 4px 12px;
  font-size: 12px;
  color: var(--c-gold);
  border: 1px solid var(--c-gold);
  border-radius: 2px;
  letter-spacing: .04em;
  font-family: var(--f-serif-en);
  font-style: italic;
}
.tag--navy{
  color: var(--c-navy);
  border-color: var(--c-navy);
}
.tag--ghost{
  color: var(--c-text-soft);
  border-color: var(--c-line);
}
.tag--solid{
  background: var(--c-gold);
  color: var(--c-navy-2);
  border-color: var(--c-gold);
  font-style: normal;
  font-weight: 500;
}

.news-list{ display: flex; flex-direction: column; }
.news-item{
  display: grid;
  grid-template-columns: 200px 1fr auto;
  gap: 32px;
  padding: 32px 0;
  border-bottom: 1px solid var(--c-line);
  transition: background .25s;
}
.news-item:hover{ background: var(--c-cream); }
.news-item:hover .news-item__title{ color: var(--c-gold); }
.news-item__media{
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
  background: var(--c-cream);
}
.news-item__media img{
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .5s;
}
.news-item:hover .news-item__media img{ transform: scale(1.05); }
.news-item__body{ display: flex; flex-direction: column; justify-content: center; }
.news-item__meta{
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  color: var(--c-text-mute);
  margin-bottom: 8px;
  font-family: var(--f-serif-en);
  font-style: italic;
  letter-spacing: .04em;
}
.news-item__title{
  font-family: var(--f-serif-cn);
  font-size: 19px;
  font-weight: 600;
  color: var(--c-navy);
  line-height: 1.5;
  margin-bottom: 8px;
  transition: color .25s;
}
.news-item__desc{
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-text-soft);
}
.news-item__date{
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-family: var(--f-serif-en);
  color: var(--c-gold);
  min-width: 60px;
}
.news-item__date-d{
  font-size: 32px;
  line-height: 1;
  margin-bottom: 4px;
  font-weight: 500;
}
.news-item__date-ym{
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--c-text-mute);
}

/* 列表 - 简洁 */
.lined-list{ display: flex; flex-direction: column; }
.lined-list li{
  display: grid;
  grid-template-columns: 100px 1fr auto;
  gap: 24px;
  padding: 20px 0;
  border-bottom: 1px solid var(--c-line);
  align-items: center;
  transition: all .25s;
}
.lined-list li:hover{ background: var(--c-cream); padding-left: 12px; }
.lined-list__no{
  font-family: var(--f-serif-en);
  font-style: italic;
  color: var(--c-gold);
  font-size: 18px;
  font-weight: 500;
}
.lined-list__title{
  font-size: 15px;
  color: var(--c-navy);
  font-weight: 500;
  line-height: 1.5;
}
.lined-list__meta{
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  color: var(--c-text-mute);
  font-family: var(--f-serif-en);
  font-style: italic;
  letter-spacing: .04em;
}

/* ---------- 13. 团队/理事会 ---------- */
.team-grid{
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.team-card{
  text-align: center;
  padding: 32px 16px;
  background: var(--c-white);
  border: 1px solid var(--c-line);
  transition: all .3s;
}
.team-card:hover{
  border-color: var(--c-gold);
  transform: translateY(-2px);
  box-shadow: var(--shadow-2);
}
.team-card__avatar{
  width: 80px;
  height: 80px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: var(--c-navy);
  color: var(--c-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--f-serif-cn);
  font-size: 28px;
  font-weight: 600;
  border: 1px solid var(--c-gold);
}
.team-card__name{
  font-family: var(--f-serif-cn);
  font-size: 16px;
  font-weight: 600;
  color: var(--c-navy);
  margin-bottom: 4px;
}
.team-card__role{
  font-size: 12px;
  color: var(--c-gold);
  margin-bottom: 8px;
  letter-spacing: .04em;
  font-family: var(--f-serif-en);
  font-style: italic;
}
.team-card__bio{
  font-size: 12px;
  color: var(--c-text-soft);
  line-height: 1.6;
}

.partners{
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
}
.partner{
  padding: 24px 16px;
  background: var(--c-white);
  border: 1px solid var(--c-line);
  text-align: center;
  font-family: var(--f-serif-cn);
  font-size: 13px;
  color: var(--c-navy);
  line-height: 1.4;
  transition: all .25s;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 64px;
}
.partner:hover{
  border-color: var(--c-gold);
  color: var(--c-navy);
  background: var(--c-cream);
}

/* ---------- 14. 表单 ---------- */
.form-grid{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.form-grid--full{ grid-template-columns: 1fr; }
.field{ display: flex; flex-direction: column; gap: 6px; }
.field--full{ grid-column: 1 / -1; }
.field__label{
  font-size: 13px;
  color: var(--c-navy);
  font-weight: 500;
  letter-spacing: .04em;
}
.field__label::after{
  content: ' *';
  color: var(--c-gold);
  opacity: 0;
}
.field--required .field__label::after{ opacity: 1; }
.field__input,
.field__select,
.field__textarea{
  width: 100%;
  padding: 12px 14px;
  font-family: inherit;
  font-size: 14px;
  color: var(--c-text);
  background: var(--c-white);
  border: 1px solid var(--c-line);
  border-radius: 2px;
  transition: border-color .25s, box-shadow .25s;
}
.field__input:focus,
.field__select:focus,
.field__textarea:focus{
  outline: none;
  border-color: var(--c-navy);
  box-shadow: 0 0 0 3px rgba(27, 42, 74, .08);
}
.field__textarea{ min-height: 120px; resize: vertical; line-height: 1.7; }
.field__hint{
  font-size: 12px;
  color: var(--c-text-mute);
  font-family: var(--f-serif-en);
  font-style: italic;
}

/* ---------- 15. 页脚 ---------- */
.footer{
  background: var(--c-navy-2);
  color: rgba(255,255,255,.7);
  padding: 80px 0 32px;
  position: relative;
}
.footer::before{
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--c-gold), transparent);
  opacity: .4;
}
.footer__grid{
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 56px;
  margin-bottom: 56px;
}
.footer__brand{
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 24px;
}
.footer__brand-logo{
  width: 44px; height: 44px;
  object-fit: contain;
}
.footer__brand-text{
  display: flex; flex-direction: column;
  line-height: 1.2;
}
.footer__brand-cn{
  font-family: var(--f-serif-cn);
  font-size: 16px;
  font-weight: 600;
  color: var(--c-white);
  letter-spacing: .04em;
}
.footer__brand-en{
  font-family: var(--f-serif-en);
  font-style: italic;
  font-size: 11px;
  color: var(--c-gold-soft);
  letter-spacing: .12em;
  text-transform: uppercase;
  margin-top: 4px;
}
.footer__about{
  font-size: 13px;
  line-height: 1.8;
  color: rgba(255,255,255,.6);
  margin-bottom: 24px;
  max-width: 360px;
}
.footer__contact-mini{
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 12px;
  color: rgba(255,255,255,.6);
}
.footer__contact-mini span strong{
  color: var(--c-gold-soft);
  font-weight: 500;
  margin-right: 8px;
  font-family: var(--f-serif-en);
  font-style: italic;
  letter-spacing: .08em;
  font-size: 11px;
}
.footer__col-title{
  font-family: var(--f-serif-en);
  font-style: italic;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--c-gold);
  text-transform: uppercase;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(201, 169, 110, .15);
}
.footer__list li{ margin-bottom: 12px; }
.footer__list a{
  font-size: 13px;
  color: rgba(255,255,255,.7);
  transition: color .25s;
  display: inline-block;
}
.footer__list a:hover{ color: var(--c-gold); }
.footer__bottom{
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,.08);
  font-size: 12px;
  color: rgba(255,255,255,.5);
  flex-wrap: wrap;
  gap: 16px;
}
.footer__copy{
  font-family: var(--f-serif-en);
  font-style: italic;
  letter-spacing: .04em;
}
.footer__licenses{
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.footer__license{
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  border: 1px dashed rgba(255,255,255,.18);
  color: rgba(255,255,255,.5);
  font-size: 11px;
  font-family: var(--f-serif-en);
  font-style: italic;
  letter-spacing: .04em;
}
.footer__license::before{ content: '◇'; color: var(--c-gold); font-style: normal; }
.footer__legal{
  display: flex;
  gap: 16px;
  font-size: 12px;
}
.footer__legal a:hover{ color: var(--c-gold); }
.footer__declaration{
  margin-top: 24px;
  padding: 16px 20px;
  border: 1px solid rgba(201, 169, 110, .15);
  background: rgba(201, 169, 110, .04);
  font-size: 12px;
  line-height: 1.8;
  color: rgba(255,255,255,.55);
}
.footer__declaration strong{
  color: var(--c-gold-soft);
  font-weight: 500;
  margin-right: 8px;
  font-family: var(--f-serif-en);
  font-style: italic;
  letter-spacing: .08em;
  font-size: 11px;
  text-transform: uppercase;
}

/* ---------- 16. 城市分布条 ---------- */
.cities-strip{
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  background: var(--c-navy-2);
  color: var(--c-white);
  border-top: 1px solid rgba(201, 169, 110, .2);
  border-bottom: 1px solid rgba(201, 169, 110, .2);
}
.cities-strip__cell{
  padding: 32px 20px;
  border-right: 1px solid rgba(201, 169, 110, .15);
  text-align: center;
  position: relative;
  transition: all .3s;
}
.cities-strip__cell:last-child{ border-right: none; }
.cities-strip__cell:hover{
  background: rgba(201, 169, 110, .06);
}
.cities-strip__no{
  font-family: var(--f-serif-en);
  font-style: italic;
  font-size: 12px;
  color: var(--c-gold);
  letter-spacing: .12em;
  margin-bottom: 8px;
}
.cities-strip__name{
  font-family: var(--f-serif-cn);
  font-size: 22px;
  font-weight: 500;
  color: var(--c-white);
  margin-bottom: 4px;
}
.cities-strip__role{
  font-size: 11px;
  color: rgba(255,255,255,.5);
  letter-spacing: .04em;
}

/* ---------- 17. 内部 hero 横幅（关于页） ---------- */
.banner-narrow{
  position: relative;
  height: 320px;
  background: var(--c-navy-2) center/cover;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--c-white);
  overflow: hidden;
}
.banner-narrow::before{
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(15, 27, 51, .85), rgba(27, 42, 74, .6));
}
.banner-narrow__inner{
  position: relative;
  z-index: 1;
  max-width: 720px;
  padding: 0 24px;
}
.banner-narrow__title{
  font-family: var(--f-serif-cn);
  font-size: 36px;
  font-weight: 600;
  margin-bottom: 8px;
}
.banner-narrow__sub{
  font-family: var(--f-serif-en);
  font-style: italic;
  font-size: 14px;
  color: var(--c-gold-soft);
  letter-spacing: .12em;
}

/* ---------- 18. 装饰元素 ---------- */
.frame-corner{
  position: relative;
  padding: 32px;
}
.frame-corner::before,
.frame-corner::after{
  content: '';
  position: absolute;
  width: 20px;
  height: 20px;
  border: 1px solid var(--c-gold);
}
.frame-corner::before{ top: 0; left: 0; border-right: none; border-bottom: none; }
.frame-corner::after{ bottom: 0; right: 0; border-left: none; border-top: none; }

.kicker{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--c-gold);
  font-family: var(--f-serif-en);
  font-style: italic;
  letter-spacing: .14em;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.kicker::before{
  content: '';
  display: block;
  width: 24px;
  height: 1px;
  background: var(--c-gold);
}

/* ---------- 19. 排版增强 ---------- */
.lede{
  font-family: var(--f-serif-cn);
  font-size: 20px;
  line-height: 1.85;
  color: var(--c-text);
  font-weight: 400;
  margin-bottom: 24px;
  padding-left: 20px;
  border-left: 2px solid var(--c-gold);
}
.lede::first-letter{
  font-family: var(--f-serif-en);
  font-size: 64px;
  font-weight: 600;
  color: var(--c-navy);
  float: left;
  line-height: 1;
  margin: 4px 12px 0 0;
}

.prose p{
  margin-bottom: 16px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--c-text);
}
.prose h3{
  font-family: var(--f-serif-cn);
  font-size: 22px;
  color: var(--c-navy);
  margin: 32px 0 12px;
  font-weight: 600;
}
.prose h4{
  font-family: var(--f-serif-cn);
  font-size: 17px;
  color: var(--c-navy);
  margin: 24px 0 8px;
  font-weight: 600;
}

/* ---------- 20. 动画 ---------- */
.fade-in{
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .8s ease, transform .8s ease;
}
.fade-in.is-visible{
  opacity: 1;
  transform: translateY(0);
}

@keyframes pulse-gold{
  0%, 100%{ box-shadow: 0 0 0 0 rgba(201, 169, 110, .4); }
  50%{ box-shadow: 0 0 0 12px rgba(201, 169, 110, 0); }
}
.pulse{ animation: pulse-gold 2.5s infinite; }

@keyframes drift{
  0%{ transform: translateX(0); }
  100%{ transform: translateX(-50%); }
}
.marquee{
  overflow: hidden;
  white-space: nowrap;
}
.marquee__inner{
  display: inline-flex;
  animation: drift 40s linear infinite;
  gap: 64px;
  padding-right: 64px;
}

/* ---------- 21. 响应式 ---------- */
@media (max-width: 1024px) {
  .hero__inner{ grid-template-columns: 1fr; gap: 40px; }
  .hero__side{ display: none; }
  .hero__trust{ grid-template-columns: repeat(2, 1fr); gap: 20px; }
  .research-grid{ grid-template-columns: 1fr; }
  .report{ grid-template-columns: 1fr; }
  .datawall__grid{ grid-template-columns: repeat(2, 1fr); }
  .datawall__cell:nth-child(4n){ border-right: 1px solid rgba(201, 169, 110, .15); }
  .datawall__cell:nth-child(2n){ border-right: none; }
  .plans{ grid-template-columns: 1fr; }
  .plan{ border-right: none; border-bottom: 1px solid var(--c-line); }
  .plan:last-child{ border-bottom: none; }
  .team-grid{ grid-template-columns: repeat(2, 1fr); }
  .partners{ grid-template-columns: repeat(3, 1fr); }
  .cities-strip{ grid-template-columns: repeat(3, 1fr); }
  .cities-strip__cell:nth-child(3n){ border-right: none; }
  .footer__grid{ grid-template-columns: 1fr 1fr; gap: 40px; }
  .news-item{ grid-template-columns: 1fr; gap: 16px; }
  .news-item__media{ aspect-ratio: 16/9; }
  .news-item__date{ flex-direction: row; gap: 8px; }
  .form-grid{ grid-template-columns: 1fr; }
  .nav-top__menu{ display: none; }
  .nav-top__right{ display: none; }
  .nav-burger{ display: flex; }
  /* 首页三板块叠放 */
  .method-grid{ grid-template-columns: repeat(2, 1fr) !important; gap: 20px !important; }
  .news-calendar-grid{ grid-template-columns: 1fr !important; gap: 40px !important; }
  .cta-grid{ grid-template-columns: 1fr !important; gap: 32px !important; align-items: stretch !important; }
  /* 兜底面：所有内联 grid（各页面多列布局）在平板及以下堆叠为单列，避免横向溢出；桌面端不受影响 */
  [style*="grid-template-columns"]:not(.method-grid):not(.news-calendar-grid):not(.cta-grid){
    grid-template-columns: 1fr !important;
  }
  /* 关键：grid/flex 子项默认 min-width:auto 会拒绝收缩导致横溢，移动端强制可收缩 */
  [style*="grid-template-columns"] > *{ min-width: 0; }
  [style*="display:flex"] > *{ min-width: 0; }
}
@media (max-width: 640px) {
  .section{ padding: 64px 0; }
  .section-lg{ padding: 80px 0; }
  .hero{ min-height: 80vh; padding: 100px 0 60px; }
  .hero__cta{ flex-direction: column; align-items: stretch; }
  .hero__cta .btn{ width: 100%; }
  .datawall__grid{ grid-template-columns: 1fr; }
  .datawall__cell{ border-right: none !important; }
  .team-grid{ grid-template-columns: 1fr; }
  .partners{ grid-template-columns: repeat(2, 1fr); }
  .cities-strip{ grid-template-columns: repeat(2, 1fr); }
  .cities-strip__cell:nth-child(2n){ border-right: none; }
  .footer__grid{ grid-template-columns: 1fr; gap: 32px; }
  .footer__bottom{ flex-direction: column; align-items: flex-start; }
  .lined-list li{ grid-template-columns: 1fr; gap: 8px; }
  .lined-list__meta{ font-size: 11px; }
  .container{ padding: 0 16px; }
  .plan{ padding: 32px 24px; }
  .lede{ font-size: 17px; padding-left: 12px; }
  .lede::first-letter{ font-size: 48px; }
  .nav-top__inner{ padding: 0 16px; height: 60px; }
  .nav-top__brand-en{ display: none; }
  .mobile-menu{ top: 60px; }
  /* 首页三板块单列 */
  .method-grid{ grid-template-columns: 1fr !important; gap: 16px !important; }
  .news-calendar-grid{ grid-template-columns: 1fr !important; gap: 32px !important; }
  .cta-grid{ grid-template-columns: 1fr !important; gap: 24px !important; }
  /* 修 iOS Safari background-attachment:fixed 失效/卡顿 */
  .section[style*="background-attachment"]{ background-attachment: scroll !important; }
  /* 关闭移动端子导航 sticky，避免遮挡正文（仅影响内联 sticky，桌面端导航 sticky 不受影响） */
  [style*="position:sticky"]{ position: static !important; }
  /* 子导航 / 筛选栏手机端允许换行，避免横向溢出 */
  .research-jump{ flex-wrap: wrap; gap: 8px; }
  .research-jump a{ border-right: none; border: 1px solid rgba(255,255,255,.18); border-radius: 2px; }
  .lib-searchbar > button{ width: 100%; margin-top: 4px; }
  /* 长文本/备案号允许断词，避免撑破容器 */
  .footer__declaration, .footer__licenses, .footer__copy, .section__title-en{ word-break: break-word; overflow-wrap: anywhere; }
  /* 全局允许长单词/长串断行，配合 min-width:0 彻底消除移动端横溢 */
  body{ overflow-wrap: break-word; }
  /* 会员权益对比表：手机端横向滚动，避免挤压错乱 */
  .cmp-wrap{ overflow-x: auto !important; -webkit-overflow-scrolling: touch; }
  .cmp-table{ min-width: 540px; }
  .cmp-table th, .cmp-table td{ padding: 12px 12px; font-size: 13px; }
}

/* 公安联网备案徽标 (2026-09-03) */
.footer__license.footer__beian::before{content:none}
.footer__beian{text-decoration:none}
.footer__beian:hover{color:var(--c-gold);border-color:var(--c-gold)}
.footer__beian-ico{width:14px;height:14px;object-fit:contain;flex-shrink:0;border:0}