/* ==========================================================================
   FIGS · 有未来生涯规划  ·  官方网站
   设计语言：编辑式（remissionbiome.org 风格）—— 纯白底 · 全无衬线 · 方括号装饰
   性能：系统字体栈，零外部依赖
   ========================================================================== */

/* ---------- 1. 设计令牌 ---------- */
:root {
  /* 编辑式调色板：纯白 + 黑 + 灰，FIGS 海军蓝 / 暖橙作为最稀有的强调 */
  --ink:          #0a0a0a;
  --ink-2:        #2a2a2a;
  --muted:        #6e6e6e;
  --soft:         #a8a8a8;
  --line:         #ececec;
  --bg:           #ffffff;
  --bg-soft:      #fafafa;
  --bg-ink:       #0a0a0a;

  /* FIGS 品牌点缀（极少使用） */
  --brand:        #003057;
  --accent:       #f06a3f;

  /* 字体：全部系统无衬线（无任何远程加载） */
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI",
          "PingFang SC", "Hiragino Sans GB",
          "Microsoft YaHei", "微软雅黑", "Heiti SC",
          Roboto, "Helvetica Neue", Arial, sans-serif;

  --container: 1240px;
}

/* ---------- 2. 基础排版 ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

img, svg { max-width: 100%; height: auto; display: block; }
a { color: var(--ink); text-decoration: none; transition: opacity .2s ease, color .2s ease; }
a:hover { color: var(--accent); }
button { font-family: inherit; cursor: pointer; }

h1, h2, h3, h4, h5 {
  margin: 0 0 .5em;
  line-height: 1.1;
  letter-spacing: -.02em;
  color: var(--ink);
  font-weight: 700;
}
h1 { font-size: clamp(2.8rem, 6.5vw, 5.6rem); letter-spacing: -.038em; line-height: 1.05; }
h2 { font-size: clamp(2.2rem, 4.5vw, 3.8rem); letter-spacing: -.03em; line-height: 1.08; }
h3 { font-size: clamp(1.4rem, 1.9vw, 1.8rem); letter-spacing: -.02em; }
h4 { font-size: 1.15rem; letter-spacing: -.01em; }

p { margin: 0 0 1em; color: var(--ink-2); }
p.lede { font-size: clamp(1.15rem, 1.4vw, 1.4rem); color: var(--ink); line-height: 1.5; max-width: 700px; }

em { font-style: italic; }
strong { font-weight: 700; color: var(--ink); }

.container { max-width: var(--container); margin: 0 auto; padding: 0 32px; }
.narrow    { max-width: 880px; }

section { padding: 120px 0; }
section.tight { padding: 72px 0; }
section.ink {
  background: var(--bg-ink);
  color: #f0ece5;
}
section.ink h1, section.ink h2, section.ink h3, section.ink h4 { color: #fff; }
section.ink p { color: #c8c4ba; }

/* ---------- 3. 招牌装饰：方括号 ---------- */

/* 内联 eyebrow 标签：[ Some Label ] */
.label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--ink);
  margin-bottom: 28px;
}
.label::before { content: "["; font-weight: 400; font-size: 1.6em; line-height: 1; margin-top: -2px; }
.label::after  { content: "]"; font-weight: 400; font-size: 1.6em; line-height: 1; margin-top: -2px; }
section.ink .label,
section.ink .label::before,
section.ink .label::after { color: #f0ece5; }

/* 段落括号：[ Phrase ] —— 行内强调 */
.brk { white-space: nowrap; }
.brk::before { content: "[\00a0"; color: var(--accent); font-weight: 400; }
.brk::after  { content: "\00a0]"; color: var(--accent); font-weight: 400; }

/* 区块之间的中央大括号分割线 */
.bracket-rule {
  text-align: center;
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 300;
  color: var(--ink);
  line-height: 1;
  padding: 36px 0;
  letter-spacing: .8em;
  margin-left: .8em; /* counteract last letter-spacing */
}
section.ink + .bracket-rule { color: var(--ink); }

/* 小型分隔：左 [ —— 居中文字 —— ] 右 */
.divider {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  font-size: 12px;
  letter-spacing: .25em;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0;
}
.divider::before,
.divider::after {
  content: ""; flex: 0 1 80px; height: 1px; background: var(--ink);
}

/* 章首大字 SECTION 编号 + 标题 */
.section-head { max-width: 980px; margin-bottom: 80px; }
.section-head.center { text-align: center; margin-left: auto; margin-right: auto; }
.section-head h2 { margin-bottom: 22px; }
.section-head p { color: var(--ink-2); font-size: 1.1rem; max-width: 680px; line-height: 1.55; }
.section-head.center p { margin-left: auto; margin-right: auto; }

.section-num {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: .25em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 28px;
}
.section-num::before {
  content: ""; width: 36px; height: 1.5px; background: var(--ink);
}

/* ---------- 4. 按钮（方括号风格） ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0 4px;
  font-weight: 700;
  font-size: 14.5px;
  letter-spacing: .04em;
  background: transparent;
  color: var(--ink);
  border: 0;
  border-radius: 0;
  transition: color .2s ease;
  white-space: nowrap;
  text-transform: uppercase;
  position: relative;
  line-height: 1;
}
.btn::before {
  content: "[";
  font-weight: 300;
  font-size: 1.6em;
  margin-right: 6px;
  transition: transform .25s ease, color .2s ease;
}
.btn::after {
  content: "]";
  font-weight: 300;
  font-size: 1.6em;
  margin-left: 6px;
  transition: transform .25s ease, color .2s ease;
}
.btn:hover { color: var(--accent); }
.btn:hover::before { transform: translateX(-3px); color: var(--accent); }
.btn:hover::after  { transform: translateX(3px); color: var(--accent); }

.btn-solid {
  padding: 14px 28px;
  background: var(--ink);
  color: #fff;
  border: 1.5px solid var(--ink);
  text-transform: uppercase;
}
.btn-solid::before, .btn-solid::after { display: none; }
.btn-solid:hover { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-solid:hover::before, .btn-solid:hover::after { color: #fff; }

.btn-light { color: #fff; }
.btn-light:hover { color: var(--accent); }

/* ---------- 5. 顶部导航 ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,.96);
  backdrop-filter: saturate(180%) blur(10px);
  -webkit-backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 16px 32px;
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  gap: 24px;
}
.brand { display: inline-flex; align-items: center; flex-shrink: 0; }
.brand img { height: 42px; width: auto; display: block; }

.nav-links {
  list-style: none;
  display: flex;
  flex-wrap: nowrap;
  gap: 2px;
  margin: 0;
  padding: 0;
  flex-grow: 1;
  justify-content: center;
}
.nav-links a {
  display: inline-block;
  padding: 8px 12px;
  font-size: 14px;
  color: var(--ink-2);
  font-weight: 500;
  position: relative;
  white-space: nowrap;
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 12px; right: 12px;
  bottom: 4px;
  height: 1.5px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .25s ease;
}
.nav-links a:hover { color: var(--ink); }
.nav-links a:hover::after { transform: scaleX(1); }

.nav-cta { display: flex; align-items: center; gap: 14px; flex-shrink: 0; }
.nav-cta .phone { font-size: 12.5px; color: var(--muted); font-weight: 600; letter-spacing: .04em; white-space: nowrap; }
.nav-cta .phone span { color: var(--ink); }

/* 中等屏（避免内容拥挤 → 提前折叠） */
@media (max-width: 1180px) {
  .nav-cta .phone { display: none; }
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--ink);
  border-radius: 0;
  width: 42px;
  height: 42px;
  padding: 0;
  align-items: center;
  justify-content: center;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  display: block;
  width: 20px;
  height: 1.5px;
  background: var(--ink);
  transition: transform .25s ease, opacity .2s ease;
}
.nav-toggle span { position: relative; }
.nav-toggle span::before { position: absolute; top: -7px; }
.nav-toggle span::after  { position: absolute; top:  7px; }
.nav.is-open .nav-toggle span { background: transparent; }
.nav.is-open .nav-toggle span::before { transform: translateY(7px) rotate(45deg); }
.nav.is-open .nav-toggle span::after  { transform: translateY(-7px) rotate(-45deg); }

/* ---------- 6. 首屏 Hero ---------- */
.hero { padding: 96px 0 120px; }
.hero-grid {
  display: grid;
  grid-template-columns: 1.25fr 1fr;
  gap: 80px;
  align-items: center;
}
.hero h1 { margin-bottom: 32px; }
.hero h1 em { font-style: italic; color: var(--accent); font-weight: 700; }
.hero h1 u { text-decoration-thickness: 4px; text-underline-offset: 10px; text-decoration-color: var(--accent); }
.hero .lede { margin-bottom: 40px; color: var(--ink-2); font-size: clamp(1.05rem, 1.3vw, 1.2rem); line-height: 1.6; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 24px; align-items: center; }

.hero-art {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--bg-ink);
  border-top: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
}
.hero-art img,
.hero-art iframe,
.hero-art video {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  border: 0;
  display: block;
}

/* ---------- 7. 合作单位 / 信任栏 ---------- */
.partners {
  padding: 56px 0;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  background: #fff;
}
.partners-head { text-align: center; margin-bottom: 32px; }
.partners-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 24px 48px;
  font-size: 14.5px;
  font-weight: 600;
  letter-spacing: .04em;
  color: var(--ink-2);
}

/* ---------- 8. 核心项目（编辑式三栏） ---------- */
.programs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 64px;
}
.program {
  display: flex;
  flex-direction: column;
  padding: 0;
}
.program-num {
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: .25em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 24px;
  padding-bottom: 18px;
  border-bottom: 1.5px solid var(--ink);
}
.program-num em { color: var(--accent); font-style: normal; }
.program h3 {
  font-size: clamp(1.6rem, 2vw, 2rem);
  margin-bottom: 8px;
  letter-spacing: -.025em;
}
.program .subtitle {
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 24px;
}
.program p { font-size: 15.5px; line-height: 1.65; }
.program ul {
  list-style: none;
  margin: 0 0 28px;
  padding: 0;
}
.program li {
  padding: 11px 0 11px 0;
  font-size: 14.5px;
  color: var(--ink-2);
  border-top: 1px solid var(--line);
  display: flex;
  gap: 12px;
  line-height: 1.5;
}
.program li:last-child { border-bottom: 1px solid var(--line); }
.program li::before {
  content: "→";
  color: var(--accent);
  font-weight: 700;
  flex-shrink: 0;
}
.program .more { margin-top: auto; padding-top: 12px; }

/* ---------- 9. 三栏 / 四栏特征块（flat, 无边框） ---------- */
.flat-grid {
  display: grid;
  gap: 56px 64px;
}
.flat-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.flat-grid.cols-4 { grid-template-columns: repeat(4, 1fr); }

.flat-item {
  display: flex;
  flex-direction: column;
}
.flat-item .num {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .25em;
  color: var(--accent);
  margin-bottom: 14px;
}
.flat-item h4 {
  font-size: 1.25rem;
  margin-bottom: 12px;
  letter-spacing: -.015em;
}
.flat-item p {
  font-size: 15px;
  color: var(--muted);
  margin: 0;
  line-height: 1.65;
}

/* ---------- 10. 测评卡 ---------- */
.assessments {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 56px 64px;
}
.assess {
  display: block;
  padding: 0;
  position: relative;
  transition: opacity .2s ease;
}
.assess:hover { opacity: .7; }
.assess:hover h4 { color: var(--accent); }
.assess .num {
  font-size: clamp(3.5rem, 5vw, 4.8rem);
  font-weight: 700;
  line-height: 1;
  color: var(--ink);
  margin-bottom: 20px;
  letter-spacing: -.05em;
}
.assess h4 {
  font-size: 1.25rem;
  margin-bottom: 12px;
  transition: color .2s ease;
}
.assess p {
  font-size: 15px;
  color: var(--muted);
  margin: 0;
  line-height: 1.65;
}
.assess .assess-sub {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--muted);
  margin: -4px 0 14px;
}
.assess .assess-foot {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
}
.assess .assess-count {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--ink);
}
.assess .status {
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--muted);
}
.assess .status::before { content: "[ "; }
.assess .status::after  { content: " ]"; }
.assess .status.is-live { color: var(--accent); }
.assess.is-live { /* 当前可用的测评 */ }

/* ---------- 11. 数据 / 统计（大数字纵向堆叠） ---------- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 48px 32px;
}
.stat { text-align: left; }
.stat .num {
  font-size: clamp(3rem, 5.5vw, 4.8rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.04em;
  color: var(--ink);
  margin-bottom: 18px;
  display: block;
}
section.ink .stat .num { color: #fff; }
.stat .label {
  font-size: 14px;
  color: var(--muted);
  opacity: 1;
  line-height: 1.55;
}
.stat .label strong { display: block; font-weight: 700; color: var(--ink); margin-bottom: 4px; font-size: 14.5px; letter-spacing: .04em; }
section.ink .stat .label strong { color: #fff; }
section.ink .stat .label { color: #c8c4ba; }

/* ---------- 12. 长文 / 编辑式分栏 ---------- */
.editorial-grid {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 96px;
  align-items: start;
}
.editorial-grid h3 { font-size: clamp(1.5rem, 2.4vw, 2rem); margin-bottom: 18px; }
.editorial-grid p { font-size: 1.05rem; line-height: 1.75; color: var(--ink-2); }
.editorial-grid p + p { margin-top: 1.1em; }
.col-meta {
  font-size: 12px;
  letter-spacing: .25em;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--muted);
  padding-top: 16px;
  border-top: 2px solid var(--ink);
}
.meta-list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
}
.meta-list li {
  padding: 12px 0;
  font-size: 14.5px;
  color: var(--ink-2);
  border-bottom: 1px solid var(--line);
  letter-spacing: .02em;
}
.meta-list li strong { display: block; font-size: 11px; letter-spacing: .22em; text-transform: uppercase; color: var(--muted); margin-bottom: 4px; }

/* 引言 / pull quote */
.pull-quote {
  font-size: clamp(1.5rem, 2.6vw, 2.4rem);
  line-height: 1.3;
  font-weight: 500;
  letter-spacing: -.02em;
  color: var(--ink);
  padding: 32px 0;
  margin: 36px 0;
  position: relative;
}
.pull-quote::before {
  content: "[";
  font-weight: 200;
  font-size: 5rem;
  line-height: .5;
  color: var(--accent);
  display: block;
  margin-bottom: 18px;
}
.pull-quote::after {
  content: "]";
  font-weight: 200;
  font-size: 5rem;
  line-height: .5;
  color: var(--accent);
  display: block;
  margin-top: 18px;
  text-align: right;
}
.pull-quote .author {
  margin-top: 24px;
  display: block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--muted);
  font-style: normal;
}
.pull-quote .author::before { content: "— "; }

/* ---------- 12.4 项目深度详情 / Program Deep Dive ---------- */
.dive-block {
  border-top: 2px solid var(--ink);
  padding-top: 56px;
  padding-bottom: 88px;
}
.dive-block + .dive-block { padding-top: 56px; }
.dive-block:last-child { padding-bottom: 32px; }

.dive-head {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 64px;
  align-items: start;
  margin-bottom: 48px;
}
.dive-head .dive-eyebrow {
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: .25em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}
.dive-head h3 {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  margin: 0;
  letter-spacing: -.025em;
  line-height: 1.1;
}
.dive-head p {
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--ink-2);
  margin: 0;
}

/* 关键信息条：日期 / 价格 / 地点 / 名额 等 */
.dive-info {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-top: 1.5px solid var(--ink);
  border-bottom: 1.5px solid var(--ink);
  margin-bottom: 40px;
}
.dive-info-item {
  padding: 20px 24px 18px 0;
  border-right: 1px solid var(--line);
}
.dive-info-item:last-child { border-right: 0; padding-right: 0; }
.dive-info-item strong {
  display: block;
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 8px;
}
.dive-info-item span {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -.01em;
  line-height: 1.3;
  display: block;
}
.dive-info-item .sub {
  font-size: 12px;
  color: var(--muted);
  font-weight: 500;
  letter-spacing: 0;
  margin-top: 4px;
  display: block;
}

/* 时间表 / 阶段 / 日程 */
.dive-schedule {
  border-top: 1px solid var(--ink);
  margin-bottom: 40px;
}
.dive-schedule .row {
  display: grid;
  grid-template-columns: 200px 1fr 150px;
  gap: 24px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
  align-items: baseline;
}
.dive-schedule .row .stage {
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--accent);
}
.dive-schedule .row .name {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -.01em;
}
.dive-schedule .row .name small {
  display: block;
  font-size: 13px;
  font-weight: 400;
  color: var(--muted);
  margin-top: 4px;
  letter-spacing: 0;
}
.dive-schedule .row .meta {
  font-size: 13.5px;
  color: var(--muted);
  text-align: right;
  letter-spacing: .02em;
}

/* 师资 / 名师阵容（2 列卡片） */
.dive-faculty {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  border-top: 1.5px solid var(--ink);
  border-bottom: 1.5px solid var(--ink);
  margin-bottom: 40px;
}
.dive-faculty-item {
  padding: 18px 24px 18px 0;
  border-bottom: 1px solid var(--line);
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 18px;
  align-items: baseline;
}
.dive-faculty-item:nth-child(odd) { border-right: 1px solid var(--line); padding-right: 24px; }
.dive-faculty-item:nth-last-child(-n+2) { border-bottom: 0; }
.dive-faculty-item strong {
  font-size: 11px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 700;
  padding-top: 4px;
}
.dive-faculty-item span {
  font-size: 14.5px;
  color: var(--ink);
  line-height: 1.55;
  letter-spacing: -.005em;
}
.dive-faculty-item span b { display: block; font-weight: 700; margin-bottom: 2px; }

/* 单日作息表 */
.dive-daily {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0 56px;
  margin-bottom: 32px;
}
.dive-daily-row {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 16px;
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14.5px;
}
.dive-daily-row strong { color: var(--muted); font-size: 12.5px; letter-spacing: .15em; font-weight: 700; padding-top: 1px; }
.dive-daily-row span { color: var(--ink-2); }

/* 比例 / 倍数 等强调数字 */
.dive-callout {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  margin-bottom: 40px;
  border-top: 1.5px solid var(--ink);
  border-bottom: 1.5px solid var(--ink);
}
.dive-callout-item {
  padding: 28px 28px 26px 0;
  border-right: 1px solid var(--line);
}
.dive-callout-item:last-child { border-right: 0; padding-right: 0; }
.dive-callout-item .big {
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -.03em;
  line-height: 1;
  margin-bottom: 12px;
}
.dive-callout-item .big em { color: var(--accent); font-style: normal; }
.dive-callout-item p { font-size: 14px; color: var(--muted); margin: 0; line-height: 1.55; }

/* 校测时间轴 */
.dive-timeline {
  margin-bottom: 32px;
  border-top: 1.5px solid var(--ink);
}
.dive-timeline-row {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 32px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
  align-items: baseline;
}
.dive-timeline-row strong {
  font-size: 14.5px;
  font-weight: 700;
  color: var(--ink);
}
.dive-timeline-row span {
  font-size: 14px;
  color: var(--muted);
  letter-spacing: .01em;
}

/* 子区块小标题 */
.dive-subhead {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .25em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 8px 0 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--ink);
}

@media (max-width: 1100px) {
  .dive-head { grid-template-columns: 1fr; gap: 18px; }
  .dive-info { grid-template-columns: repeat(2, 1fr); }
  .dive-info-item { border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
  .dive-info-item:nth-child(2n) { border-right: 0; }
  .dive-info-item:nth-last-child(-n+2) { border-bottom: 0; }
  .dive-callout { grid-template-columns: 1fr; }
  .dive-callout-item { border-right: 0; border-bottom: 1px solid var(--line); padding-right: 0; }
  .dive-callout-item:last-child { border-bottom: 0; }
  .dive-faculty { grid-template-columns: 1fr; }
  .dive-faculty-item { border-right: 0 !important; padding-right: 0; }
  .dive-daily { grid-template-columns: 1fr; }
  .dive-schedule .row { grid-template-columns: 1fr; gap: 4px; padding: 14px 0; }
  .dive-schedule .row .meta { text-align: left; }
  .dive-timeline-row { grid-template-columns: 1fr; gap: 4px; }
}

/* ---------- 12.5 视频 / Video ---------- */
.videos { padding: 96px 0 120px; }
.video-featured {
  position: relative;
  aspect-ratio: 16 / 9;
  background: var(--bg-ink);
  overflow: hidden;
  margin-bottom: 56px;
  border-top: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
}
.video-featured video,
.video-card video {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
  background: #000;
}
.video-featured .video-poster {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
}
/* 视频海报覆盖层 —— 在任何视频容器内都水平 + 垂直居中 */
.video-overlay {
  position: absolute;
  top: 0; right: 0; bottom: 0; left: 0;
  width: 100%; height: 100%;
  margin: 0;
  padding: 0;
  border: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0) 0%, rgba(0,0,0,.55) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background .25s ease;
  z-index: 2;
}
.video-overlay:hover {
  background: linear-gradient(180deg, rgba(0,0,0,.05) 0%, rgba(0,0,0,.7) 100%);
}
.video-play {
  width: 88px; height: 88px;
  border-radius: 50%;
  border: 2px solid #fff;
  background: rgba(0,0,0,.35);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform .25s ease, background .2s ease;
}
.video-overlay:hover .video-play { transform: scale(1.08); background: var(--accent); border-color: var(--accent); }
.video-play svg { width: 28px; height: 28px; fill: #fff; margin-left: 4px; }

.video-featured .video-label {
  position: absolute;
  top: 24px; left: 24px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: #fff;
  background: rgba(0,0,0,.5);
  padding: 6px 12px;
  z-index: 2;
}
.video-featured .video-caption {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 36px 36px 32px;
  color: #fff;
  z-index: 2;
  pointer-events: none;
  transition: opacity .4s ease;
}
.video-featured .video-caption h3 {
  color: #fff;
  font-size: clamp(1.4rem, 2.2vw, 2rem);
  margin-bottom: 6px;
  letter-spacing: -.02em;
}
.video-featured .video-caption p {
  color: rgba(255,255,255,.85);
  font-size: 15px;
  margin: 0;
}

.video-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
}
.video-card {
  display: flex;
  flex-direction: column;
}
.video-card .video-frame {
  position: relative;
  aspect-ratio: 16 / 9;
  background: var(--bg-ink);
  overflow: hidden;
  margin-bottom: 18px;
  border-top: 1.5px solid var(--ink);
}
.video-card .video-poster {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
}
.video-card h4 {
  font-size: 1.2rem;
  margin-bottom: 6px;
  letter-spacing: -.015em;
}
.video-card p {
  margin: 0;
  color: var(--muted);
  font-size: 14.5px;
}
.video-card .video-play { width: 64px; height: 64px; }
.video-card .video-play svg { width: 22px; height: 22px; }

/* 视频分类小标题 */
.video-cat {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
  margin: 64px 0 28px;
  padding-bottom: 14px;
  border-bottom: 1.5px solid var(--ink);
}
.video-cat .cat-label {
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: .25em;
  text-transform: uppercase;
  color: var(--ink);
}
.video-cat .cat-label::before { content: "[ "; color: var(--accent); font-weight: 400; }
.video-cat .cat-label::after  { content: " ]"; color: var(--accent); font-weight: 400; }
.video-cat .cat-name {
  font-size: clamp(1.4rem, 2vw, 1.8rem);
  font-weight: 700;
  letter-spacing: -.02em;
  color: var(--ink);
  margin: 0;
}
.video-cat .cat-count {
  font-size: 12px;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 600;
}

/* 视频卡网格 */
.video-grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.video-grid.cols-3 { grid-template-columns: repeat(3, 1fr); gap: 32px; }
.video-grid.cols-4 { grid-template-columns: repeat(4, 1fr); gap: 28px; }

/* 时长徽章 */
.duration {
  position: absolute;
  bottom: 10px; right: 10px;
  background: rgba(0, 0, 0, .75);
  color: #fff;
  font-size: 11.5px;
  font-weight: 600;
  padding: 3px 8px;
  letter-spacing: .04em;
  z-index: 2;
  pointer-events: none;
  font-variant-numeric: tabular-nums;
}

/* 紧凑视频卡（3 列时使用） */
.video-grid.cols-3 .video-card h4,
.video-grid.cols-4 .video-card h4 { font-size: 1.05rem; }
.video-grid.cols-3 .video-card p,
.video-grid.cols-4 .video-card p { font-size: 13.5px; }
.video-grid.cols-3 .video-card .video-play { width: 56px; height: 56px; }
.video-grid.cols-4 .video-card .video-play { width: 48px; height: 48px; }
.video-grid.cols-4 .video-card .video-play svg { width: 18px; height: 18px; }

@media (max-width: 1100px) {
  .video-grid.cols-3 { grid-template-columns: repeat(2, 1fr); }
  .video-grid.cols-4 { grid-template-columns: repeat(2, 1fr); gap: 32px; }
}
@media (max-width: 820px) {
  .video-grid,
  .video-grid.cols-2,
  .video-grid.cols-3,
  .video-grid.cols-4 { grid-template-columns: 1fr; gap: 32px; }
  .video-play { width: 64px; height: 64px; }
  .video-featured .video-caption { padding: 22px; }
  .video-cat { flex-wrap: wrap; gap: 8px 18px; margin: 48px 0 22px; }
}

/* ---------- 12.6 流程 / 协作时间线 ---------- */
.timeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-top: 2px solid var(--ink);
}
.timeline-step {
  padding: 36px 28px 32px 0;
  border-right: 1px solid var(--line);
  position: relative;
}
.timeline-step:last-child { border-right: 0; padding-right: 0; }
.timeline-step::before {
  content: "";
  position: absolute;
  top: -2px; left: 0;
  width: 36px; height: 2px;
  background: var(--accent);
}
.timeline-step .step-num {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .25em;
  color: var(--muted);
  margin-bottom: 16px;
  text-transform: uppercase;
}
.timeline-step h4 {
  font-size: 1.1rem;
  margin-bottom: 10px;
  letter-spacing: -.01em;
}
.timeline-step p {
  font-size: 14.5px;
  color: var(--muted);
  margin: 0;
  line-height: 1.6;
}

@media (max-width: 1100px) {
  .timeline { grid-template-columns: repeat(2, 1fr); }
  .timeline-step { border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 28px 24px 28px 0; }
  .timeline-step:nth-child(2n) { border-right: 0; }
  .timeline-step:nth-last-child(-n+2) { border-bottom: 0; }
}
@media (max-width: 560px) {
  .timeline { grid-template-columns: 1fr; }
  .timeline-step { border-right: 0 !important; padding-right: 0; }
}

/* ---------- 12.7 Beyond Application 5 列内容卡 ---------- */
.beyond-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0;
  border-top: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
}
.beyond-item {
  padding: 32px 24px 32px;
  border-right: 1px solid var(--line);
  display: flex;
  flex-direction: column;
}
.beyond-item:last-child { border-right: 0; }
.beyond-item .b-num {
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 18px;
}
.beyond-item h4 {
  font-size: 1.15rem;
  letter-spacing: -.01em;
  margin-bottom: 12px;
}
.beyond-item p {
  font-size: 14px;
  line-height: 1.65;
  margin: 0;
  color: var(--ink-2);
}
.beyond-item ul {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
}
.beyond-item li {
  padding: 6px 0;
  font-size: 13.5px;
  color: var(--muted);
  border-top: 1px solid var(--line);
  line-height: 1.5;
}

@media (max-width: 1100px) {
  .beyond-grid { grid-template-columns: repeat(2, 1fr); }
  .beyond-item:nth-child(2n) { border-right: 0; }
  .beyond-item { border-bottom: 1px solid var(--line); }
  .beyond-item:nth-last-child(-n+1):nth-child(odd) { grid-column: 1 / -1; }
}
@media (max-width: 560px) {
  .beyond-grid { grid-template-columns: 1fr; }
  .beyond-item { border-right: 0 !important; }
}

/* ---------- 13. 创始人 ---------- */
.founder {
  display: grid;
  grid-template-columns: .85fr 1fr;
  gap: 72px;
  align-items: start;
  margin-top: 56px;
}
.founder-photo {
  aspect-ratio: 4 / 5;
  background: var(--bg-soft);
  overflow: hidden;
}
.founder-photo img { width: 100%; height: 100%; object-fit: cover; }
.founder-name {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .25em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 14px;
}
.founder h3 {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  margin-bottom: 8px;
  letter-spacing: -.025em;
}
.founder .title {
  font-style: italic;
  font-size: 1.2rem;
  color: var(--muted);
  margin-bottom: 28px;
}
.founder ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.founder li {
  padding: 14px 0;
  border-top: 1px solid var(--line);
  font-size: 14.5px;
  color: var(--ink-2);
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 18px;
  line-height: 1.55;
}
.founder li:last-child { border-bottom: 1px solid var(--line); }
.founder li .role {
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--muted);
  padding-top: 3px;
  font-weight: 700;
}

/* ---------- 14. 案例 / 学员故事卡 ---------- */
.cases {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 56px 64px;
}
.case {
  display: flex;
  flex-direction: column;
  border-top: 1.5px solid var(--ink);
  padding-top: 28px;
}
.case .case-tag {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 14px;
}
.case h3 {
  font-size: 1.45rem;
  margin-bottom: 8px;
}
.case .case-school {
  font-style: italic;
  font-size: 1rem;
  color: var(--muted);
  margin-bottom: 18px;
}
.case blockquote {
  margin: 0 0 22px;
  font-size: 1.05rem;
  line-height: 1.6;
  color: var(--ink-2);
  padding-left: 18px;
  border-left: 2px solid var(--accent);
}
.case ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.case li {
  padding: 8px 0;
  font-size: 14px;
  color: var(--ink-2);
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 14px;
}
.case li:last-child { border-bottom: 1px solid var(--line); }
.case li strong {
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 700;
  padding-top: 3px;
}

/* ---------- 15. 推荐 / 评论卡 ---------- */
.testimonials {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 48px;
}
.testi {
  display: flex;
  flex-direction: column;
}
.testi-quote {
  font-size: 1.05rem;
  line-height: 1.6;
  color: var(--ink);
  margin: 0 0 22px;
  position: relative;
  padding-top: 24px;
}
.testi-quote::before {
  content: "[ ”";
  position: absolute;
  top: -4px; left: 0;
  font-size: 1.6rem;
  font-weight: 300;
  color: var(--accent);
  line-height: 1;
  letter-spacing: -.05em;
}
.testi-meta { margin-top: auto; padding-top: 20px; border-top: 1px solid var(--ink); }
.testi-name { font-weight: 700; font-size: .95rem; letter-spacing: .04em; color: var(--ink); }
.testi-school { font-size: 13px; color: var(--muted); margin-top: 2px; }

/* ---------- 16. 录取院校 ---------- */
.colleges {
  columns: 4;
  column-gap: 64px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.colleges li {
  padding: 11px 0;
  font-size: 15px;
  color: var(--ink);
  border-bottom: 1px solid var(--line);
  break-inside: avoid;
  letter-spacing: .02em;
}

/* ---------- 17. FAQ ---------- */
.faq {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  max-width: 980px;
}
.faq details {
  border-top: 1px solid var(--line);
  padding: 28px 0;
}
.faq details:last-child { border-bottom: 1px solid var(--line); }
.faq summary {
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 24px;
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--ink);
  cursor: pointer;
  letter-spacing: -.01em;
  line-height: 1.45;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  font-size: 1.8rem;
  font-weight: 200;
  color: var(--accent);
  line-height: 1;
  margin-top: -4px;
  flex-shrink: 0;
  transition: transform .25s ease;
}
.faq details[open] summary::after { content: "—"; font-size: 1.3rem; margin-top: 2px; }
.faq summary:hover { color: var(--accent); }
.faq .faq-body {
  margin-top: 18px;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--ink-2);
  max-width: 760px;
}
.faq .faq-body p { margin: 0 0 .7em; }

/* ---------- 18. 通讯 / 订阅 ---------- */
.newsletter {
  padding: 96px 0;
  background: var(--bg-ink);
  color: #f0ece5;
}
.newsletter h2 { color: #fff; max-width: 760px; }
.newsletter p { color: #c8c4ba; max-width: 580px; }
.newsletter .form-inline {
  display: flex;
  gap: 0;
  margin-top: 32px;
  max-width: 560px;
  border-bottom: 1.5px solid #fff;
}
.newsletter input {
  flex-grow: 1;
  padding: 14px 4px;
  font-size: 16px;
  background: transparent;
  color: #fff;
  border: 0;
  outline: none;
  font-family: inherit;
}
.newsletter input::placeholder { color: rgba(255,255,255,.5); }
.newsletter button {
  padding: 14px 0 14px 20px;
  background: transparent;
  color: #fff;
  border: 0;
  font-weight: 700;
  font-size: 13px;
  letter-spacing: .15em;
  text-transform: uppercase;
  transition: color .2s ease;
}
.newsletter button::before { content: "[ "; font-weight: 300; }
.newsletter button::after  { content: " →]"; font-weight: 300; }
.newsletter button:hover { color: var(--accent); }

/* ---------- 19. 联系表单 ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 80px;
  align-items: start;
}
.contact-info .item {
  padding: 20px 0;
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 18px;
  align-items: baseline;
}
.contact-info .item:last-child { border-bottom: 1px solid var(--line); }
.contact-info .item strong {
  font-size: 11px;
  letter-spacing: .22em;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--muted);
}
.contact-info .item span { color: var(--ink); font-size: 16px; font-weight: 500; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-bottom: 24px; }
.form label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 10px;
}
.form input,
.form select,
.form textarea {
  width: 100%;
  padding: 12px 0;
  border: 0;
  border-bottom: 1.5px solid var(--ink);
  border-radius: 0;
  font-family: inherit;
  font-size: 16px;
  color: var(--ink);
  background: transparent;
  appearance: none;
  -webkit-appearance: none;
  transition: border-color .2s ease;
}
.form input:focus, .form select:focus, .form textarea:focus {
  outline: none;
  border-bottom-color: var(--accent);
}
.form textarea { resize: vertical; min-height: 100px; }
.form select {
  background-image:
    linear-gradient(45deg, transparent 50%, currentColor 50%),
    linear-gradient(135deg, currentColor 50%, transparent 50%);
  background-position: calc(100% - 12px) calc(50% - 2px), calc(100% - 6px) calc(50% - 2px);
  background-size: 6px 6px;
  background-repeat: no-repeat;
  padding-right: 24px;
}
.form .submit-row { margin-top: 32px; }
.form-note { font-size: 12px; color: var(--muted); margin-top: 16px; letter-spacing: .02em; }

/* ---------- 20. 页脚 ---------- */
.footer {
  background: var(--bg-ink);
  color: #c8c4ba;
  padding: 88px 0 36px;
}
.footer a { color: #c8c4ba; }
.footer a:hover { color: var(--accent); }
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 56px;
  border-bottom: 1px solid rgba(255,255,255,.12);
}
.footer h5 {
  color: #fff;
  font-size: 11px;
  letter-spacing: .25em;
  text-transform: uppercase;
  margin-bottom: 22px;
  font-weight: 700;
}
.footer p { font-size: 14px; color: #c8c4ba; margin: 0 0 8px; line-height: 1.75; }
.footer ul { list-style: none; padding: 0; margin: 0; }
.footer li { padding: 6px 0; font-size: 14px; }
.footer .brand img { height: 52px; width: auto; }
.copyright {
  padding-top: 28px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 12.5px;
  color: #8a857a;
  letter-spacing: .04em;
}

/* ---------- 21. 响应式 ---------- */
@media (max-width: 1100px) {
  .programs { grid-template-columns: repeat(2, 1fr); }
  .flat-grid.cols-3 { grid-template-columns: repeat(2, 1fr); }
  .flat-grid.cols-4 { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .assessments { grid-template-columns: repeat(2, 1fr); }
  .cases { grid-template-columns: 1fr; }
  .testimonials { grid-template-columns: 1fr 1fr; }
  .editorial-grid { grid-template-columns: 1fr; gap: 36px; }
  .founder { grid-template-columns: 1fr; gap: 40px; }
  .founder-photo { max-width: 400px; }
  .colleges { columns: 3; }
}
/* 导航：在 960px 以下就提前折叠为汉堡，避免链接拥挤 */
@media (max-width: 960px) {
  .nav-toggle { display: inline-flex; }
  .nav-cta .phone { display: none; }
  .nav-links {
    display: none;
    position: absolute;
    top: 100%; left: 0; right: 0;
    flex-direction: column;
    background: #fff;
    padding: 16px 28px 28px;
    border-bottom: 1px solid var(--line);
  }
  .nav.is-open { position: relative; }
  .nav.is-open .nav-links { display: flex; }
  .nav-links a { padding: 12px 0; font-size: 16px; }
  .nav-links a::after { display: none; }
}

@media (max-width: 820px) {
  section { padding: 88px 0; }
  .hero { padding: 64px 0 88px; }
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .hero-art { aspect-ratio: 4 / 3; }
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
  .testimonials { grid-template-columns: 1fr; }
  .colleges { columns: 2; }
}
@media (max-width: 560px) {
  section { padding: 72px 0; }
  .container { padding: 0 22px; }
  .nav-inner { padding: 14px 22px; gap: 14px; }
  .brand img { height: 36px; }
  .programs { grid-template-columns: 1fr; }
  .flat-grid.cols-3, .flat-grid.cols-4 { grid-template-columns: 1fr; }
  .assessments { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr; gap: 36px; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 36px; }
  .colleges { columns: 2; column-gap: 28px; }
  .newsletter .form-inline { flex-wrap: wrap; }
  .newsletter button { width: 100%; padding-left: 0; margin-top: 12px; text-align: left; }
  h1 { font-size: 2.4rem; }
  h2 { font-size: 2rem; }
}

/* ---------- 22. 出现动效 ---------- */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity .7s ease, transform .7s ease; }
.reveal.is-in { opacity: 1; transform: none; }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0 0 0 0); border: 0; }