/* ==========================================================================
   VVS Education — 全站样式
   活泼年轻化风格 / 中英双语 / 响应式
   ========================================================================== */

/* ---------- 设计变量 ---------- */
:root {
  /* 主色系：活力蓝紫 */
  --brand:        #1D3A61;
  --brand-light:  #2F5486;
  --brand-soft:   #EDF2F8;
  --brand-dark:   #12263F;

  /* 点缀色：橙 / 珊瑚 / 青 / 粉 */
  --accent:       #C3A063;
  --accent-soft:  #F7F0E1;
  --coral:        #BE7C6B;
  --coral-soft:   #F7EAE6;
  --teal:         #4A868A;
  --teal-soft:    #E4F0F0;
  --lime:         #8A9A5B;
  --lime-soft:    #EFF2E4;
  --violet:       #5A6B93;
  --violet-soft:  #EDEFF6;

  /* 中性色 */
  --ink:          #13233C;
  --ink-2:        #4C5A6E;
  --ink-3:        #7C8798;
  --line:         #E6E3DC;
  --surface:      #FFFFFF;
  --surface-2:    #FAF9F6;
  --surface-3:    #F2F0EA;

  /* 圆角 / 阴影 */
  --r-sm: 10px;
  --r-md: 16px;
  --r-lg: 24px;
  --r-xl: 32px;
  --r-pill: 999px;

  --shadow-sm: 0 2px 8px rgba(19, 35, 60, .06);
  --shadow-md: 0 8px 24px rgba(19, 35, 60, .08);
  --shadow-lg: 0 20px 48px rgba(19, 35, 60, .12);
  --shadow-brand: 0 12px 32px rgba(29, 58, 97, .22);

  /* 布局 */
  --nav-h: 72px;
  --maxw: 1200px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 16px);
  -webkit-text-size-adjust: 100%;
  /* 横向裁切放在 html 上：若放在 body 上会让 body 变成独立滚动容器，
     导致页面滚动与滚动动效失效。 */
  overflow-x: hidden;
}

body {
  margin: 0;
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
               -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: var(--ink);
  background: var(--surface);
  line-height: 1.75;
  font-size: 16px;
}

img, svg { max-width: 100%; display: block; }
/* 图片标签上的 width/height 仅用于占位防抖动，实际高度按比例自适应；
   需要固定高度的场景（相册、实景图）由各自更高优先级的规则覆盖。 */
img { height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }

h1, h2, h3, h4 { line-height: 1.3; margin: 0; font-weight: 800; letter-spacing: -.01em; }
p { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }

/* 英文装饰性字体（数字与英文标签） */
.font-en {
  font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  letter-spacing: .04em;
}

/* ---------- 通用布局 ---------- */
.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: 88px 0; position: relative; }
.section--tight { padding: 64px 0; }
.section--soft { background: var(--surface-2); }
.section--brand-soft { background: var(--brand-soft); }

/* 小标题（英文装饰） */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--brand);
  background: var(--brand-soft);
  padding: 7px 16px;
  border-radius: var(--r-pill);
  margin-bottom: 18px;
}
.eyebrow--accent { color: #8A6D2E; background: var(--accent-soft); }
.eyebrow--coral  { color: #8F4E3E; background: var(--coral-soft); }
.eyebrow--teal   { color: #2F6467; background: var(--teal-soft); }

.section-title {
  font-size: clamp(28px, 4vw, 42px);
  margin-bottom: 16px;
}
.section-lead {
  font-size: 17px;
  color: var(--ink-2);
  max-width: 680px;
}
.section-head { margin-bottom: 48px; }
.section-head--center { text-align: center; }
.section-head--center .section-lead { margin-left: auto; margin-right: auto; }

/* 彩色下划线强调 */
.hl {
  position: relative;
  display: inline-block;
  z-index: 0;
}
.hl::after {
  content: "";
  position: absolute;
  left: -2px; right: -2px; bottom: 4px;
  height: 38%;
  background: var(--accent-soft);
  border-radius: 4px;
  z-index: -1;
}
.hl--teal::after  { background: var(--teal-soft); }
.hl--coral::after { background: var(--coral-soft); }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 30px;
  border-radius: var(--r-pill);
  font-weight: 700;
  font-size: 16px;
  border: 2px solid transparent;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn--primary {
  background: var(--brand);
  color: #fff;
  box-shadow: var(--shadow-brand);
}
.btn--primary:hover { background: var(--brand-light); }

.btn--accent {
  background: var(--accent);
  color: #3A2E12;
  box-shadow: 0 12px 32px rgba(195, 160, 99, .30);
}
.btn--accent:hover { background: #D4B47A; }

.btn--ghost {
  background: #fff;
  color: var(--brand);
  border-color: var(--brand);
}
.btn--ghost:hover { background: var(--brand-soft); }

.btn--white {
  background: #fff;
  color: var(--brand);
  box-shadow: var(--shadow-md);
}
.btn--outline-white {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,.6);
}
.btn--outline-white:hover { background: rgba(255,255,255,.14); }

.btn--sm { padding: 10px 22px; font-size: 15px; }
.btn--lg { padding: 17px 38px; font-size: 17px; }

.btn-row { display: flex; flex-wrap: wrap; gap: 14px; }

/* ---------- 顶部导航 ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-h);
  background: rgba(255,255,255,.9);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.nav__inner {
  height: 100%;
  display: flex;
  align-items: center;
  gap: 20px;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

/* 品牌 Logo（机构官方标识） */
.logo { display: flex; align-items: center; flex-shrink: 0; }
.logo img { height: 44px; width: auto; }
/* 页脚为深色背景，将深蓝 Logo 反白显示 */
.footer .logo img { filter: brightness(0) invert(1); opacity: .95; }

.nav__links {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}
.nav__links a {
  padding: 9px 15px;
  border-radius: var(--r-pill);
  font-size: 15px;
  font-weight: 600;
  color: var(--ink-2);
  transition: background .18s ease, color .18s ease;
}
.nav__links a:hover { background: var(--brand-soft); color: var(--brand); }
.nav__links a.is-active { background: var(--brand-soft); color: var(--brand); }

.nav__actions { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }

/* 语言切换 */
.lang-toggle {
  display: flex;
  background: var(--surface-3);
  border-radius: var(--r-pill);
  padding: 3px;
  gap: 2px;
}
.lang-toggle button {
  border: 0;
  background: transparent;
  color: var(--ink-3);
  font-size: 13px;
  font-weight: 700;
  padding: 6px 13px;
  border-radius: var(--r-pill);
  transition: background .18s ease, color .18s ease;
}
.lang-toggle button.is-active {
  background: #fff;
  color: var(--brand);
  box-shadow: var(--shadow-sm);
}

/* 汉堡菜单 */
.nav__burger {
  display: none;
  width: 44px; height: 44px;
  border: 0;
  border-radius: 12px;
  background: var(--surface-3);
  position: relative;
}
.nav__burger span {
  position: absolute;
  left: 12px;
  width: 20px; height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: transform .25s ease, opacity .25s ease;
}
.nav__burger span:nth-child(1) { top: 15px; }
.nav__burger span:nth-child(2) { top: 21px; }
.nav__burger span:nth-child(3) { top: 27px; }
.nav__burger.is-open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav__burger.is-open span:nth-child(2) { opacity: 0; }
.nav__burger.is-open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ---------- 首屏 Hero ---------- */
.hero {
  position: relative;
  padding: 84px 0 96px;
  background:
    radial-gradient(1000px 520px at 88% -8%, rgba(195,160,99,.16), transparent 60%),
    radial-gradient(760px 460px at 4% 8%, rgba(29,58,97,.10), transparent 62%),
    linear-gradient(180deg, #FCFBF8 0%, #F5F3EE 100%);
  overflow: hidden;
}
.hero__grid {
  display: grid;
  grid-template-columns: 1.06fr .94fr;
  gap: 56px;
  align-items: center;
}
.hero h1 {
  font-size: clamp(34px, 5.2vw, 56px);
  line-height: 1.16;
  margin-bottom: 22px;
}
.hero__lead {
  font-size: 18px;
  color: var(--ink-2);
  margin-bottom: 32px;
  max-width: 520px;
}
.hero__tags { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 30px; }
.tag-pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  padding: 8px 17px;
  font-size: 14px;
  font-weight: 700;
  color: var(--ink-2);
  box-shadow: var(--shadow-sm);
}
.tag-pill i {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--brand); display: inline-block;
}
.tag-pill:nth-child(2) i { background: var(--accent); }
.tag-pill:nth-child(3) i { background: var(--teal); }

.hero__note {
  margin-top: 20px;
  font-size: 14px;
  color: var(--ink-3);
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Hero 插画 */
.hero__art { position: relative; }
.hero__art svg { width: 100%; height: auto; }

/* 浮动装饰卡片 */
.float-card {
  position: absolute;
  background: #fff;
  border-radius: var(--r-md);
  padding: 13px 17px;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 11px;
  font-size: 14px;
  font-weight: 700;
  animation: float 5s ease-in-out infinite;
}
.float-card__icon {
  width: 34px; height: 34px;
  border-radius: 10px;
  display: grid; place-items: center;
  font-size: 17px;
}
.float-card--1 { top: 6%; left: -4%; animation-delay: 0s; }
.float-card--2 { bottom: 12%; right: -3%; animation-delay: 1.6s; }
.float-card--3 { bottom: 42%; left: -8%; animation-delay: 3s; }

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-11px); }
}

/* ---------- 试听课横幅 ---------- */
.offer {
  position: relative;
  border-radius: var(--r-xl);
  padding: 48px 52px;
  background: linear-gradient(120deg, var(--brand-dark) 0%, var(--brand) 55%, var(--brand-light) 100%);
  color: #fff;
  overflow: hidden;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 36px;
  align-items: center;
  box-shadow: var(--shadow-lg);
}
.offer::before {
  content: "";
  position: absolute;
  top: -80px; right: -60px;
  width: 320px; height: 320px;
  background: rgba(255,255,255,.1);
  border-radius: 50%;
}
.offer::after {
  content: "";
  position: absolute;
  bottom: -110px; left: 8%;
  width: 240px; height: 240px;
  background: rgba(255,255,255,.07);
  border-radius: 50%;
}
.offer > * { position: relative; z-index: 1; }
.offer__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: #3A2E12;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .1em;
  padding: 6px 15px;
  border-radius: var(--r-pill);
  margin-bottom: 16px;
}
.offer h2 { font-size: clamp(26px, 3.4vw, 36px); margin-bottom: 14px; }
.offer p { color: rgba(255,255,255,.9); font-size: 16px; max-width: 560px; }
.offer__cta { display: flex; flex-direction: column; align-items: center; gap: 12px; }
.offer__urgent {
  font-size: 13px;
  font-weight: 700;
  color: #EBDCBB;
  display: flex; align-items: center; gap: 6px;
}

/* ---------- 卡片网格 ---------- */
.grid { display: grid; gap: 24px; }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 32px 28px;
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
  position: relative;
  overflow: hidden;
  height: 100%;
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.card__icon {
  width: 58px; height: 58px;
  border-radius: 18px;
  display: grid; place-items: center;
  margin-bottom: 20px;
  font-size: 27px;
}
.card h3 { font-size: 21px; margin-bottom: 10px; }
.card p { color: var(--ink-2); font-size: 15px; }
.card__list { margin-top: 16px; display: flex; flex-direction: column; gap: 9px; }
.card__list li {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  font-size: 14.5px;
  color: var(--ink-2);
}
.card__list li::before {
  content: "";
  flex-shrink: 0;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--brand);
  margin-top: 9px;
}
.card__meta {
  display: inline-block;
  margin-top: 18px;
  font-size: 12.5px;
  font-weight: 700;
  padding: 5px 13px;
  border-radius: var(--r-pill);
  background: var(--surface-3);
  color: var(--ink-3);
}
.card__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 20px;
  font-weight: 700;
  font-size: 15px;
  color: var(--brand);
}
.card__link:hover { gap: 10px; }
.card__link span { transition: transform .2s ease; }

/* 顶部彩条卡片 */
.card--bar::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 5px;
  background: var(--brand);
}
.card--bar.c-accent::before { background: var(--accent); }
.card--bar.c-teal::before   { background: var(--teal); }
.card--bar.c-coral::before  { background: var(--coral); }
.card--bar.c-violet::before { background: var(--violet); }
.card--bar.c-lime::before   { background: var(--lime); }

/* 图标配色工具类 */
.ic-brand  { background: var(--brand-soft);  color: var(--brand); }
.ic-accent { background: var(--accent-soft); color: #8A6D2E; }
.ic-teal   { background: var(--teal-soft);   color: #2F6467; }
.ic-coral  { background: var(--coral-soft);  color: #8F4E3E; }
.ic-violet { background: var(--violet-soft); color: #45527A; }
.ic-lime   { background: var(--lime-soft);   color: #5D6B3C; }

/* ---------- 成绩数据条 ---------- */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.stat {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 34px 24px;
  text-align: center;
  position: relative;
  overflow: hidden;
  transition: transform .25s ease, box-shadow .25s ease;
}
.stat:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.stat__num {
  font-size: clamp(38px, 5vw, 52px);
  font-weight: 900;
  line-height: 1;
  color: var(--brand);
  letter-spacing: -.02em;
  font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
}
.stat:nth-child(2) .stat__num { color: var(--accent); }
.stat:nth-child(3) .stat__num { color: var(--teal); }
.stat:nth-child(4) .stat__num { color: var(--violet); }
.stat__label {
  margin-top: 12px;
  font-size: 15px;
  font-weight: 700;
  color: var(--ink-2);
}
.stat__en {
  margin-top: 3px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--ink-3);
}

/* ---------- 合作院校 ---------- */
.unis {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.uni {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 22px 18px;
  text-align: center;
  transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}
.uni:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--brand-light); }
.uni__abbr {
  font-size: 22px;
  font-weight: 900;
  color: var(--brand);
  letter-spacing: -.01em;
  font-family: "Segoe UI", Arial, sans-serif;
}
.uni__name { margin-top: 6px; font-size: 13px; color: var(--ink-2); font-weight: 600; }
.uni__en { font-size: 11px; color: var(--ink-3); margin-top: 2px; }

/* 校徽展示：各校原始配色差异很大，统一成单色深灰以保持一致，
   也让白色版校徽（UWA）能在白底上正常显示。 */
.uni__logo {
  height: 62px;
  display: grid;
  place-items: center;
  margin-bottom: 12px;
}
.uni__logo img {
  max-height: 52px;
  max-width: 100%;
  width: auto;
  object-fit: contain;
  filter: brightness(0);
  opacity: .66;
  transition: opacity .25s ease;
}
.uni:hover .uni__logo img { opacity: 1; }
/* 墨大用的是深蓝底方形标识，套单色会变成纯黑方块，故保留原配色 */
.uni__logo img.uni__logo--keep {
  filter: none;
  opacity: .85;
  max-height: 50px;
  border-radius: 8px;
}
.uni:hover .uni__logo img.uni__logo--keep { opacity: 1; }
/* 暂无校徽文件时的文字标识，与校徽保持同样的视觉重量 */
.uni__wordmark {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.25;
  /* 与经 brightness(0) 处理的校徽保持同一灰度 */
  color: #000;
  opacity: .66;
  letter-spacing: .01em;
  transition: opacity .25s ease;
}
.uni:hover .uni__wordmark { opacity: 1; }

/* ---------- 双栏图文 ---------- */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.split--rev .split__media { order: 2; }
.split__media {
  border-radius: var(--r-xl);
  overflow: hidden;
  background: linear-gradient(135deg, var(--brand-soft), var(--violet-soft));
  padding: 32px;
}
.split__media svg { width: 100%; height: auto; }

/* 实景照片版（无内边距，图片铺满圆角容器） */
.split__media--photo { padding: 0; position: relative; box-shadow: var(--shadow-lg); }
.split__media--photo img {
  width: 100%; height: 100%;
  min-height: 300px;
  object-fit: cover;
  display: block;
}
/* 照片角标 */
.photo-tag {
  position: absolute;
  left: 18px; bottom: 18px;
  background: rgba(255,255,255,.94);
  backdrop-filter: blur(6px);
  border-radius: var(--r-pill);
  padding: 8px 18px;
  font-size: 13.5px;
  font-weight: 700;
  color: var(--ink);
  box-shadow: var(--shadow-md);
  display: flex; align-items: center; gap: 7px;
}

/* 校区实景相册 */
.gallery { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 16px; }
.gallery figure {
  margin: 0;
  border-radius: var(--r-lg);
  overflow: hidden;
  position: relative;
  box-shadow: var(--shadow-md);
  transition: transform .28s ease, box-shadow .28s ease;
}
.gallery figure:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
/* 三张图统一高度并排；首图稍宽（1.6fr）以突出主视觉 */
.gallery figure { height: 320px; }
.gallery img { width: 100%; height: 100%; object-fit: cover; display: block; }
.gallery figcaption {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 26px 18px 14px;
  background: linear-gradient(180deg, transparent, rgba(30,27,75,.82));
  color: #fff;
  font-size: 13.5px;
  font-weight: 700;
}

/* 招聘板块配图 */
.join__art img { border-radius: var(--r-lg); box-shadow: var(--shadow-md); width: 100%; height: 230px; object-fit: cover; }

/* 吉祥物 / 小助手品牌图 */
.mascot-card {
  display: flex; align-items: center; gap: 30px;
  background: linear-gradient(135deg, #FBF7EE 0%, #F5EBD8 100%);
  border: 1px solid #E8DBBE;
  border-radius: var(--r-xl);
  padding: 30px 36px;
}
/* 吉祥物原图四周留白很多，容器裁切并放大主体 */
.mascot-card__img {
  flex-shrink: 0;
  width: 150px; height: 150px;
  overflow: hidden;
  display: grid; place-items: center;
}
.mascot-card__img img {
  width: 260px; height: auto; max-width: none;
  transform: translateY(2px);
  mix-blend-mode: multiply;
}
.mascot-card__brand { width: 220px; margin-bottom: 10px; }
.mascot-card h3 { font-size: 21px; margin-bottom: 10px; }
.mascot-card p { color: #5C4A24; font-size: 15px; max-width: 620px; }

/* 微信二维码卡片 */
.wechat-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 28px;
  text-align: center;
  box-shadow: var(--shadow-sm);
}
.wechat-card img {
  width: 100%; max-width: 230px;
  margin: 0 auto 14px;
  border-radius: var(--r-md);
}
.wechat-card h3 { font-size: 17px; margin-bottom: 6px; }
.wechat-card p { font-size: 14px; color: var(--ink-2); }

/* 联系页右栏的大号二维码卡片 */
.wechat-card--lg {
  align-self: center;
  padding: 40px 36px;
  border-radius: var(--r-xl);
  box-shadow: var(--shadow-md);
  max-width: 420px;
  margin: 0 auto;
}
.wechat-card--lg img { max-width: 280px; margin-bottom: 20px; }
.wechat-card--lg h3 { font-size: 20px; margin-bottom: 8px; }
.wechat-card--lg p { font-size: 15px; }

/* 带照片的内页头图 */
.page-hero--photo {
  position: relative;
  background: var(--ink);
  color: #fff;
  overflow: hidden;
}
.page-hero--photo::before {
  content: "";
  position: absolute; inset: 0;
  background-image: var(--hero-photo);
  background-size: cover;
  background-position: center;
  opacity: .34;
}
.page-hero--photo::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(120deg, rgba(55,48,163,.86), rgba(168,85,247,.62));
}
.page-hero--photo .wrap { position: relative; z-index: 1; }
.page-hero--photo h1 { color: #fff; }
.page-hero--photo p { color: rgba(255,255,255,.92); }
.page-hero--photo .eyebrow { background: rgba(255,255,255,.2); color: #fff; }
.page-hero--photo strong { color: #EBDCBB; }

/* 特性清单 */
.feature-list { display: flex; flex-direction: column; gap: 22px; margin-top: 26px; }
.feature {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.feature__icon {
  flex-shrink: 0;
  width: 46px; height: 46px;
  border-radius: 14px;
  display: grid; place-items: center;
  font-size: 21px;
}
.feature h4 { font-size: 17px; margin-bottom: 4px; }
.feature p { font-size: 14.5px; color: var(--ink-2); }

/* ---------- 步骤流程 ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.step {
  position: relative;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 30px 26px;
  transition: transform .25s ease, box-shadow .25s ease;
}
.step:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.step__num {
  width: 44px; height: 44px;
  border-radius: 14px;
  background: var(--brand);
  color: #fff;
  display: grid; place-items: center;
  font-size: 18px; font-weight: 900;
  margin-bottom: 18px;
  font-family: "Segoe UI", Arial, sans-serif;
}
.step:nth-child(2) .step__num { background: var(--teal); }
.step:nth-child(3) .step__num { background: var(--accent); color: #3A2E12; }
.step:nth-child(4) .step__num { background: var(--coral); }
.step h3 { font-size: 18px; margin-bottom: 9px; }
.step p { font-size: 14.5px; color: var(--ink-2); }

/* ---------- 联系方式卡片 ---------- */
.contact-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.contact-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 32px 26px;
  text-align: center;
  transition: transform .25s ease, box-shadow .25s ease;
}
.contact-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.contact-card__icon {
  width: 56px; height: 56px;
  border-radius: 18px;
  display: grid; place-items: center;
  margin: 0 auto 18px;
  font-size: 25px;
}
.contact-card h3 { font-size: 17px; margin-bottom: 8px; }
.contact-card a, .contact-card p {
  font-size: 15px;
  color: var(--ink-2);
  font-weight: 600;
  word-break: break-word;
}
.contact-card a:hover { color: var(--brand); }

/* ---------- 表单 ---------- */
.form-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-xl);
  padding: 40px;
  box-shadow: var(--shadow-md);
}
.field { margin-bottom: 20px; }
.field label {
  display: block;
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--ink);
}
.field label .req { color: var(--coral); }
.field input, .field select, .field textarea {
  width: 100%;
  padding: 13px 16px;
  border: 2px solid var(--line);
  border-radius: var(--r-sm);
  font-size: 15px;
  font-family: inherit;
  color: var(--ink);
  background: var(--surface-2);
  transition: border-color .18s ease, background .18s ease;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--brand);
  background: #fff;
}
.field textarea { resize: vertical; min-height: 120px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 20px; }
.form-note { font-size: 13px; color: var(--ink-3); margin-top: 14px; }

/* ---------- 地图 ---------- */
.map-frame {
  border-radius: var(--r-xl);
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-md);
  line-height: 0;
}
.map-frame iframe { width: 100%; height: 420px; border: 0; }

/* ---------- CTA 区块 ---------- */
.cta-band {
  border-radius: var(--r-xl);
  padding: 56px 48px;
  text-align: center;
  background: linear-gradient(120deg, var(--brand-dark) 0%, var(--brand) 55%, var(--brand-light) 100%);
  color: #fff;
  position: relative;
  overflow: hidden;
}
.cta-band::before {
  content: "";
  position: absolute;
  top: -100px; left: -60px;
  width: 300px; height: 300px;
  background: rgba(255,255,255,.08);
  border-radius: 50%;
}
.cta-band > * { position: relative; z-index: 1; }
.cta-band h2 { font-size: clamp(26px, 3.6vw, 38px); margin-bottom: 14px; }
.cta-band p { color: rgba(255,255,255,.9); font-size: 17px; max-width: 620px; margin: 0 auto 30px; }
.cta-band .btn-row { justify-content: center; }

/* ---------- 招聘板块 ---------- */
.join {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
  align-items: center;
  background: linear-gradient(135deg, #FBF7EE 0%, #F5EBD8 100%);
  border-radius: var(--r-xl);
  padding: 48px;
  border: 1px solid #E8DBBE;
}
.join h2 { font-size: clamp(24px, 3.2vw, 34px); margin-bottom: 14px; }
.join p { color: #5C4A24; font-size: 16px; margin-bottom: 10px; }
.join__art { text-align: center; }

/* ---------- 页脚 ---------- */
.footer {
  background: var(--ink);
  color: rgba(255,255,255,.78);
  padding: 64px 0 0;
  margin-top: 0;
}
.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1.3fr;
  gap: 48px;
  padding-bottom: 44px;
}
.footer .logo__cn { color: #fff; }
.footer .logo__en { color: rgba(255,255,255,.5); }
.footer__about { margin-top: 18px; font-size: 14.5px; max-width: 340px; line-height: 1.8; }
.footer h4 {
  color: #fff;
  font-size: 15px;
  margin-bottom: 18px;
  letter-spacing: .02em;
}
.footer__links { display: flex; flex-direction: column; gap: 11px; }
.footer__links a { font-size: 14.5px; transition: color .18s ease; }
.footer__links a:hover { color: var(--accent); }
.footer__contact { display: flex; flex-direction: column; gap: 14px; }
.footer__contact-item { display: flex; gap: 12px; align-items: flex-start; font-size: 14.5px; }
.footer__contact-item strong { color: #fff; font-weight: 700; flex-shrink: 0; }
.footer__contact-item a:hover { color: var(--accent); }
.footer__bottom {
  border-top: 1px solid rgba(255,255,255,.12);
  padding: 22px 0;
  font-size: 13.5px;
  color: rgba(255,255,255,.55);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 页面头部（内页） ---------- */
.page-hero {
  padding: 40px 0 36px;
  background:
    radial-gradient(720px 380px at 82% 0%, rgba(195,160,99,.16), transparent 62%),
    radial-gradient(560px 340px at 6% 20%, rgba(29,58,97,.10), transparent 60%),
    linear-gradient(180deg, #FCFBF8 0%, #F5F3EE 100%);
  text-align: center;
}
.page-hero .eyebrow { margin-bottom: 12px; }
.page-hero h1 { font-size: clamp(25px, 3.4vw, 34px); margin-bottom: 10px; }
.page-hero p { font-size: 15.5px; color: var(--ink-2); max-width: 620px; margin: 0 auto; }
.page-hero .btn-row { justify-content: center; margin-top: 20px; }

/* ---------- 常见问题（折叠面板） ---------- */
.faq { display: grid; gap: 14px; max-width: 900px; margin: 0 auto; }
.faq details {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  overflow: hidden;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.faq details[open] { border-color: var(--brand-light); box-shadow: var(--shadow-md); }
.faq summary {
  list-style: none;
  cursor: pointer;
  padding: 20px 56px 20px 24px;
  font-weight: 700;
  font-size: 16.5px;
  position: relative;
  color: var(--ink);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "";
  position: absolute;
  right: 24px; top: 50%;
  width: 10px; height: 10px;
  border-right: 2.5px solid var(--brand);
  border-bottom: 2.5px solid var(--brand);
  transform: translateY(-70%) rotate(45deg);
  transition: transform .25s ease;
}
.faq details[open] summary::after { transform: translateY(-30%) rotate(-135deg); }
.faq summary:hover { color: var(--brand); }
.faq__answer {
  color: var(--ink-2);
  font-size: 15.5px;
  border-top: 1px solid var(--surface-3);
  padding-top: 18px;
  margin: 0 24px 22px;
}

/* ---------- 班型对比 ---------- */
.compare { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.compare__col {
  background: #fff;
  border: 2px solid var(--line);
  border-radius: var(--r-lg);
  padding: 32px 28px;
  position: relative;
}
.compare__col--featured { border-color: var(--brand); box-shadow: var(--shadow-md); }
.compare__badge {
  position: absolute;
  top: -13px; left: 28px;
  background: var(--brand);
  color: #fff;
  font-size: 12px; font-weight: 800;
  padding: 5px 14px;
  border-radius: var(--r-pill);
  letter-spacing: .04em;
}
.compare__head { display: flex; align-items: center; gap: 14px; margin-bottom: 16px; }
.compare__icon {
  width: 50px; height: 50px;
  border-radius: 15px;
  display: grid; place-items: center;
  font-size: 23px;
  flex-shrink: 0;
}
.compare__col h3 { font-size: 20px; }
.compare__col > p { color: var(--ink-2); font-size: 15px; margin-bottom: 18px; }
.compare__list { display: flex; flex-direction: column; gap: 12px; }
.compare__list li {
  display: flex; align-items: flex-start; gap: 10px;
  font-size: 15px; color: var(--ink-2);
  padding-bottom: 12px;
  border-bottom: 1px solid var(--surface-3);
}
.compare__list li:last-child { border-bottom: 0; padding-bottom: 0; }
.compare__list li strong { color: var(--ink); font-weight: 700; flex-shrink: 0; min-width: 76px; }

/* ---------- 时间轴 ---------- */
.timeline { position: relative; max-width: 880px; margin: 0 auto; }
.timeline::before {
  content: "";
  position: absolute;
  left: 27px; top: 12px; bottom: 12px;
  width: 3px;
  background: linear-gradient(180deg, var(--brand), var(--violet), var(--accent));
  border-radius: 3px;
}
.tl-item { position: relative; padding-left: 82px; padding-bottom: 34px; }
.tl-item:last-child { padding-bottom: 0; }
.tl-item__dot {
  position: absolute;
  left: 0; top: 0;
  width: 56px; height: 56px;
  border-radius: 18px;
  background: #fff;
  border: 3px solid var(--brand);
  display: grid; place-items: center;
  font-size: 12.5px; font-weight: 800;
  color: var(--brand);
  line-height: 1.15;
  text-align: center;
  z-index: 1;
}
.tl-item:nth-child(2) .tl-item__dot { border-color: var(--teal); color: #2F6467; }
.tl-item:nth-child(3) .tl-item__dot { border-color: var(--violet); color: #45527A; }
.tl-item:nth-child(4) .tl-item__dot { border-color: var(--accent); color: #8A6D2E; }
.tl-item:nth-child(5) .tl-item__dot { border-color: var(--coral); color: #8F4E3E; }
.tl-item h3 { font-size: 19px; margin-bottom: 8px; }
.tl-item p { color: var(--ink-2); font-size: 15px; }
.tl-item__tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.tl-item__tags span {
  background: var(--surface-3);
  color: var(--ink-2);
  font-size: 12.5px; font-weight: 700;
  padding: 5px 12px;
  border-radius: var(--r-pill);
}

/* ---------- 适合人群 ---------- */
.persona {
  display: flex; gap: 18px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 26px 24px;
  transition: transform .25s ease, box-shadow .25s ease;
  height: 100%;
}
.persona:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.persona__icon {
  flex-shrink: 0;
  width: 52px; height: 52px;
  border-radius: 16px;
  display: grid; place-items: center;
  font-size: 24px;
}
.persona h3 { font-size: 17.5px; margin-bottom: 7px; }
.persona p { font-size: 14.5px; color: var(--ink-2); }

/* ---------- 底部相关推荐 ---------- */
.next-pages { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.next-page {
  display: block;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 26px 24px;
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.next-page:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: var(--brand-light); }
.next-page__label {
  font-size: 11.5px; font-weight: 800; letter-spacing: .12em;
  text-transform: uppercase; color: var(--ink-3);
  margin-bottom: 8px;
}
.next-page h3 { font-size: 18px; margin-bottom: 7px; }
.next-page p { font-size: 14.5px; color: var(--ink-2); margin-bottom: 14px; }
.next-page .go { font-weight: 700; font-size: 14.5px; color: var(--brand); }

/* ---------- 阶段重点 ---------- */
.stage-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.stage {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 28px 24px;
  border-top: 5px solid var(--brand);
  transition: transform .25s ease, box-shadow .25s ease;
}
.stage:nth-child(2) { border-top-color: var(--teal); }
.stage:nth-child(3) { border-top-color: var(--accent); }
.stage:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.stage__year {
  display: inline-block;
  font-size: 12.5px; font-weight: 800;
  letter-spacing: .06em;
  color: var(--brand);
  background: var(--brand-soft);
  padding: 5px 13px;
  border-radius: var(--r-pill);
  margin-bottom: 14px;
}
.stage:nth-child(2) .stage__year { color: #2F6467; background: var(--teal-soft); }
.stage:nth-child(3) .stage__year { color: #8A6D2E; background: var(--accent-soft); }
.stage h3 { font-size: 18.5px; margin-bottom: 9px; }
.stage p { font-size: 14.5px; color: var(--ink-2); }

/* ---------- 导师介绍 ---------- */
/* 紫色配色呼应「四大方向」里的设计方向卡片（c-violet） */
.eyebrow--violet { color: #45527A; background: var(--violet-soft); }
.hl--violet::after { background: var(--violet-soft); }

/* 人像：容器给出确定高度，避免竖构图照片把整栏撑得过高 */
.teacher-photo { height: 600px; }
.teacher-photo img { object-position: 50% 12%; }

.teacher-name {
  font-size: clamp(26px, 3vw, 32px);
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 18px;
}
.teacher-meta { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }
.teacher-meta span {
  font-size: 13px;
  font-weight: 700;
  color: #45527A;
  background: var(--violet-soft);
  padding: 6px 14px;
  border-radius: var(--r-pill);
}
.teacher-bio { font-size: 15.5px; color: var(--ink-2); }

/* 代表作：沿用相册的等高裁切做法 */
.teacher-works figure {
  margin: 0;
  height: 260px;
  border-radius: var(--r-lg);
  overflow: hidden;
  position: relative;
  box-shadow: var(--shadow-md);
  transition: transform .28s ease, box-shadow .28s ease;
}
.teacher-works figure:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.teacher-works img { width: 100%; height: 100%; object-fit: cover; display: block; }
.teacher-works figcaption {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 26px 16px 13px;
  background: linear-gradient(180deg, transparent, rgba(19,35,60,.86));
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  line-height: 1.5;
}

/* ==========================================================================
   动态效果（克制精致）
   原则：只做低幅度、长时长的动效；全部尊重系统"减少动效"设置。
   ========================================================================== */

/* 1) 顶部阅读进度条 */
.progress-bar {
  position: fixed;
  top: 0; left: 0;
  height: 3px;
  width: 100%;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--brand) 0%, var(--brand-light) 60%, var(--accent) 100%);
  z-index: 200;
  pointer-events: none;
}

/* 2) 首屏背景光晕缓慢流动 */
.hero::before,
.hero::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  filter: blur(60px);
}
.hero::before {
  width: 460px; height: 460px;
  top: -140px; right: 4%;
  background: rgba(195,160,99,.20);
  animation: drift-a 22s ease-in-out infinite;
}
.hero::after {
  width: 380px; height: 380px;
  bottom: -160px; left: 2%;
  background: rgba(29,58,97,.13);
  animation: drift-b 26s ease-in-out infinite;
}
.hero > .wrap { position: relative; z-index: 1; }

@keyframes drift-a {
  0%,100% { transform: translate(0,0) scale(1); }
  50%     { transform: translate(-46px, 40px) scale(1.10); }
}
@keyframes drift-b {
  0%,100% { transform: translate(0,0) scale(1); }
  50%     { transform: translate(52px, -34px) scale(1.08); }
}

/* 3) 导航下划线滑入 */
.nav__links a { position: relative; }
.nav__links a::after {
  content: "";
  position: absolute;
  left: 15px; right: 15px; bottom: 4px;
  height: 2px;
  border-radius: 2px;
  background: var(--brand);
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform .3s cubic-bezier(.4,0,.2,1);
}
.nav__links a:hover::after,
.nav__links a.is-active::after { transform: scaleX(1); }

/* 4) 按钮悬停微光扫过 */
.btn--primary, .btn--accent { position: relative; overflow: hidden; }
.btn--primary::after, .btn--accent::after {
  content: "";
  position: absolute;
  top: 0; left: -70%;
  width: 45%; height: 100%;
  background: linear-gradient(100deg, transparent, rgba(255,255,255,.28), transparent);
  transform: skewX(-18deg);
  transition: left .55s ease;
}
.btn--primary:hover::after, .btn--accent:hover::after { left: 130%; }

/* 5) 卡片悬停：抬起 + 光影加深（在原有基础上更细腻） */
.card, .stat, .uni, .step, .persona, .next-page, .stage, .contact-card {
  transition: transform .34s cubic-bezier(.22,1,.36,1),
              box-shadow .34s cubic-bezier(.22,1,.36,1),
              border-color .3s ease;
}

/* 6) 区块内元素错位渐入：子元素依次进场，而非整块同时出现 */
.js .reveal--stagger > * {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .55s cubic-bezier(.22,1,.36,1),
              transform .55s cubic-bezier(.22,1,.36,1);
}
.js .reveal--stagger.is-visible > * { opacity: 1; transform: none; }
.js .reveal--stagger.is-visible > *:nth-child(1) { transition-delay: .00s; }
.js .reveal--stagger.is-visible > *:nth-child(2) { transition-delay: .08s; }
.js .reveal--stagger.is-visible > *:nth-child(3) { transition-delay: .16s; }
.js .reveal--stagger.is-visible > *:nth-child(4) { transition-delay: .24s; }
.js .reveal--stagger.is-visible > *:nth-child(5) { transition-delay: .32s; }
.js .reveal--stagger.is-visible > *:nth-child(6) { transition-delay: .40s; }
.js .reveal--stagger.is-visible > *:nth-child(7) { transition-delay: .48s; }
.js .reveal--stagger.is-visible > *:nth-child(8) { transition-delay: .56s; }

/* 7) 数据数字下方的细线，进场时展开 */
.stat::after {
  content: "";
  position: absolute;
  left: 50%; bottom: 0;
  width: 46px; height: 3px;
  border-radius: 3px;
  background: var(--accent);
  transform: translateX(-50%) scaleX(0);
  transition: transform .7s cubic-bezier(.22,1,.36,1) .25s;
}
.js .stats.is-visible .stat::after { transform: translateX(-50%) scaleX(1); }

/* 8) 图片悬停缓慢推近 */
.gallery figure img,
.teacher-works figure img,
.split__media--photo img {
  transition: transform .8s cubic-bezier(.22,1,.36,1);
}
.gallery figure:hover img,
.teacher-works figure:hover img,
.split__media--photo:hover img { transform: scale(1.045); }

/* 关闭全部动效（系统偏好） */
@media (prefers-reduced-motion: reduce) {
  .hero::before, .hero::after { animation: none; }
  .progress-bar { display: none; }
  .js .reveal--stagger > * { opacity: 1; transform: none; transition: none; }
  .stat::after { transform: translateX(-50%) scaleX(1); transition: none; }
}

/* ---------- 滚动动效 ----------
   内容默认可见：即使脚本未加载，页面依然完整显示。
   只有在脚本正常运行（html 带 .js）时才启用渐入效果。 */
.js .reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .6s ease, transform .6s ease;
}
.js .reveal.is-visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js .reveal { opacity: 1; transform: none; transition: none; }
  .float-card { animation: none; }
  * { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}

/* ---------- 双语显示控制 ---------- */
html[lang="en"] .only-zh { display: none !important; }
html[lang="zh-CN"] .only-en { display: none !important; }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .hero__grid { grid-template-columns: 1fr; gap: 44px; }
  .hero__art { max-width: 480px; margin: 0 auto; }
  .float-card--1 { left: 0; }
  .float-card--2 { right: 0; }
  .float-card--3 { left: 0; }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .split { grid-template-columns: 1fr; gap: 40px; }
  .split--rev .split__media { order: 0; }
  /* 单栏后人像不再拉满整行宽度，否则竖构图会被裁成横条 */
  .teacher-photo { width: 100%; max-width: 420px; margin: 0 auto; height: auto; aspect-ratio: 4 / 5; }
  .join { grid-template-columns: 1fr; padding: 40px 32px; }
  .footer__grid { grid-template-columns: 1fr 1fr; gap: 36px; }
}

@media (max-width: 860px) {
  .nav__links {
    position: fixed;
    top: var(--nav-h);
    left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    background: #fff;
    padding: 16px 20px 26px;
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-lg);
    transform: translateY(-140%);
    transition: transform .3s cubic-bezier(.4,0,.2,1);
    max-height: calc(100vh - var(--nav-h));
    overflow-y: auto;
  }
  .nav__links.is-open { transform: translateY(0); }
  .nav__links a { padding: 13px 16px; font-size: 16px; }
  .nav__burger { display: block; }
  .nav__actions { margin-left: auto; }

  .section { padding: 64px 0; }
  .page-hero { padding: 30px 0 28px; }
  .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }
  .gallery { grid-template-columns: 1fr; }
  .gallery figure { height: 220px; }
  .teacher-works figure { height: 220px; }
  .uni__wordmark { font-size: 12.5px; }
  .compare { grid-template-columns: 1fr; }
  .next-pages { grid-template-columns: 1fr; }
  .stage-row { grid-template-columns: 1fr; }
  .timeline::before { left: 21px; }
  .tl-item { padding-left: 64px; }
  .tl-item__dot { width: 44px; height: 44px; font-size: 11px; border-radius: 14px; }
  .faq summary { font-size: 15.5px; padding: 18px 48px 18px 18px; }
  .faq summary::after { right: 18px; }
  .faq__answer { margin: 0 18px 18px; font-size: 15px; }
  .mascot-card { flex-direction: column; text-align: center; padding: 28px 22px; gap: 18px; }
  .mascot-card__img { width: 130px; }
  .mascot-card__brand { max-width: 200px; margin: 0 auto 12px; }
  .wechat-card { margin-left: auto; margin-right: auto; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .unis { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: 1fr; }
  .contact-cards { grid-template-columns: 1fr; }
  .offer { grid-template-columns: 1fr; padding: 36px 28px; text-align: center; }
  .offer p { margin: 0 auto; }
  .offer__cta { align-items: stretch; }
  .form-grid { grid-template-columns: 1fr; }
  .form-card { padding: 28px 22px; }
  .cta-band { padding: 44px 26px; }
  .footer__grid { grid-template-columns: 1fr; gap: 32px; }
  .footer__bottom { flex-direction: column; text-align: center; align-items: center; }
}

@media (max-width: 480px) {
  .wrap { padding: 0 18px; }
  .hero { padding: 56px 0 68px; }
  .btn { padding: 13px 24px; font-size: 15px; width: 100%; }
  .btn-row { flex-direction: column; }
  .hero__lead { font-size: 16.5px; }
  .card { padding: 26px 22px; }
  /* 手机端保留浮动卡片，按窄屏收紧尺寸与位置，避免溢出 */
  .float-card {
    padding: 9px 12px;
    font-size: 12px;
    gap: 8px;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
  }
  .float-card__icon { width: 26px; height: 26px; border-radius: 8px; font-size: 13px; }
  .float-card--1 { top: 1%;  left: 0; }
  .float-card--2 { bottom: 4%; right: 0; }
  .float-card--3 { bottom: 44%; left: 0; }
  .logo img { height: 38px; }
}

/* 极窄屏（320px 一类的老款手机）：导航栏三件套需要进一步压缩才放得下 */
@media (max-width: 360px) {
  .wrap, .nav__inner { padding: 0 14px; }
  .nav__inner { gap: 10px; }
  .logo img { height: 32px; }
  .nav__actions { gap: 8px; }
  .lang-toggle button { padding: 6px 9px; font-size: 12px; }
  .nav__burger { width: 40px; height: 40px; }
  .nav__burger span { left: 10px; }
  .float-card { font-size: 11.5px; padding: 8px 10px; }
  .float-card__icon { width: 24px; height: 24px; font-size: 12px; }
}