/* ============ WHU AI Seminar · DeepMind-inspired, clean ============ */

:root {
  --bg: #ffffff;
  --surface: #f6f8fa;
  --ink: #1f1f1f;
  --muted: #5f6368;
  --line: #e8eaed;
  --blue: #1a73e8;
  --g1: #4285f4;
  --g2: #9b72cb;
  --g3: #d96570;
  --sans: "Google Sans", "Google Sans Text", -apple-system, BlinkMacSystemFont,
          "PingFang SC", "HarmonyOS Sans SC", "MiSans", "Source Han Sans SC",
          "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

.wrap { max-width: 1180px; margin: 0 auto; padding: 0 32px; }

a { color: inherit; text-decoration: none; }
img { display: block; }

::selection { background: rgba(66, 133, 244, 0.18); }

/* ---------- 滚动渐入 ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .7s cubic-bezier(.2,.6,.2,1), transform .7s cubic-bezier(.2,.6,.2,1);
  transition-delay: var(--d, 0s);
}
[data-reveal].in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; transform: none; transition: none; }
}

/* ---------- 顶部导航 ---------- */
header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: box-shadow .3s;
}
header.scrolled { box-shadow: 0 1px 0 var(--line); }

.nav { display: flex; align-items: center; justify-content: space-between; height: 68px; }

.brand-name { font-weight: 600; font-size: 17px; letter-spacing: -0.01em; }

nav.links { display: flex; gap: 4px; font-size: 14.5px; font-weight: 500; align-items: center; }
nav.links a { color: var(--muted); padding: 8px 16px; border-radius: 999px; transition: all .2s; }
nav.links a:hover { color: var(--ink); background: rgba(31,31,31,.05); }
nav.links a.active { color: var(--ink); font-weight: 600; }
nav.links a.nav-cta { color: #fff; background: var(--ink); margin-left: 12px; padding: 9px 20px; }
nav.links a.nav-cta:hover { background: #000; color: #fff; }

/* ---------- Hero ---------- */
.hero { position: relative; padding: 180px 0 110px; overflow: hidden; }

.blob { position: absolute; border-radius: 50%; filter: blur(100px); opacity: .3; pointer-events: none; }
.blob-1 { width: 620px; height: 620px; background: #cfe0fc; top: -220px; right: -160px; animation: drift1 16s ease-in-out infinite alternate; }
.blob-2 { width: 480px; height: 480px; background: #e9defa; bottom: -260px; left: -180px; animation: drift2 20s ease-in-out infinite alternate; }
@keyframes drift1 { to { transform: translate(-60px, 50px) scale(1.08); } }
@keyframes drift2 { to { transform: translate(70px, -40px) scale(1.06); } }

.hero .wrap { position: relative; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 14px; font-weight: 500; color: var(--muted);
  margin-bottom: 28px;
}
.eyebrow .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--blue); animation: pulse 2.4s ease-in-out infinite; }
@keyframes pulse { 50% { transform: scale(1.4); opacity: .5; } }

h1.display {
  font-size: clamp(3rem, 6.5vw, 5rem);
  font-weight: 500; line-height: 1.14; letter-spacing: -0.03em;
  max-width: 16em;
}

.grad-text {
  background: linear-gradient(100deg, var(--g1), var(--g2), var(--g3), var(--g2), var(--g1));
  background-size: 300% 100%;
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
  animation: gradShift 8s ease-in-out infinite;
}
@keyframes gradShift { 0%,100% { background-position: 0% 50%; } 50% { background-position: 100% 50%; } }

.hero p.lede { margin-top: 28px; max-width: 32em; font-size: 18px; color: var(--muted); line-height: 1.8; }

.cta-row { margin-top: 40px; display: flex; gap: 12px; flex-wrap: wrap; }

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 28px; border-radius: 999px;
  font-size: 15px; font-weight: 500;
  transition: all .25s cubic-bezier(.2,.6,.2,1);
}
.btn-primary { background: var(--ink); color: #fff; }
.btn-primary:hover { background: #000; transform: scale(1.03); }
.btn-ghost { background: transparent; border: 1px solid var(--line); color: var(--ink); }
.btn-ghost:hover { border-color: var(--ink); }
.btn .arr { transition: transform .25s; }
.btn:hover .arr { transform: translateX(4px); }

/* ---------- 数据条 ---------- */
.stats { display: flex; gap: 80px; margin-top: 84px; padding-top: 40px; border-top: 1px solid var(--line); flex-wrap: wrap; }
.stat .num { font-size: 42px; font-weight: 500; letter-spacing: -0.03em; line-height: 1.1; }
.stat .label { font-size: 14px; color: var(--muted); margin-top: 6px; }

/* ---------- 区块通用 ---------- */
section.block { padding: 100px 0; }
section.block + section.block { border-top: 1px solid var(--line); }

.block-head { display: flex; align-items: flex-end; justify-content: space-between; margin-bottom: 56px; gap: 24px; }
.block-head .kicker { font-size: 13.5px; font-weight: 600; color: var(--muted); letter-spacing: .08em; text-transform: uppercase; margin-bottom: 12px; }

h2.title { font-size: clamp(1.9rem, 3.6vw, 2.7rem); font-weight: 500; letter-spacing: -0.025em; line-height: 1.2; }

.more-link { flex-shrink: 0; display: inline-flex; align-items: center; gap: 6px; font-size: 15px; font-weight: 500; color: var(--blue); }
.more-link:hover { text-decoration: underline; }

/* ---------- 最新一期 ---------- */
.feature { display: grid; grid-template-columns: 1.05fr 1fr; gap: 64px; align-items: center; }
.feature .media { overflow: hidden; border-radius: 24px; }
.feature img { width: 100%; aspect-ratio: 8 / 5; object-fit: cover; transition: transform .8s cubic-bezier(.2,.6,.2,1); }
.feature:hover img { transform: scale(1.04); }

.tag { display: inline-block; font-size: 13px; font-weight: 600; color: var(--blue); margin-bottom: 18px; }
.feature h3 { font-size: 30px; font-weight: 500; line-height: 1.3; letter-spacing: -0.02em; margin-bottom: 16px; }
.feature .meta { font-size: 14.5px; color: var(--muted); margin-bottom: 18px; }
.feature p.abstract { font-size: 15.5px; color: var(--muted); line-height: 1.8; }
.feature .btn { margin-top: 30px; }

/* ---------- 卡片网格(boxless) ---------- */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 36px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 36px; }

.card { display: block; }
.card .media { overflow: hidden; border-radius: 20px; }
.card img { width: 100%; aspect-ratio: 8 / 5; object-fit: cover; transition: transform .7s cubic-bezier(.2,.6,.2,1); }
.card:hover img { transform: scale(1.05); }
.card-body { padding: 22px 4px 0; }
.card-body .meta { font-size: 13.5px; color: var(--muted); margin-bottom: 8px; }
.card-body h3 { font-size: 19px; font-weight: 500; letter-spacing: -0.01em; line-height: 1.45; margin-bottom: 6px; }
.card-body p { font-size: 14.5px; color: var(--muted); }
.card-body .go { display: inline-flex; align-items: center; gap: 6px; margin-top: 14px; font-size: 14px; font-weight: 500; color: var(--blue); }
.card-body .go .arr { transition: transform .25s; }
.card:hover .go .arr { transform: translateX(4px); }

/* ---------- 往期长列表(hairline rows) ---------- */
.seminar-list { border-top: 1px solid var(--line); }

.seminar-row {
  display: grid; grid-template-columns: 72px 216px 1fr auto; gap: 40px; align-items: center;
  padding: 32px 4px; border-bottom: 1px solid var(--line);
  transition: background .25s;
}
.seminar-row:hover { background: var(--surface); }

.sr-no { font-size: 15px; font-weight: 500; color: var(--muted); }
.sr-thumb-wrap { overflow: hidden; border-radius: 14px; }
.sr-thumb { width: 216px; height: 122px; object-fit: cover; transition: transform .6s; }
.seminar-row:hover .sr-thumb { transform: scale(1.05); }
.sr-body h3 { font-size: 20px; font-weight: 500; letter-spacing: -0.01em; line-height: 1.42; margin-bottom: 6px; }
.sr-body .meta { font-size: 14px; color: var(--muted); }
.sr-arrow { font-size: 20px; color: var(--muted); transition: all .3s; padding-right: 8px; }
.seminar-row:hover .sr-arrow { color: var(--ink); transform: translateX(4px); }

/* ---------- 流程步骤(boxless columns) ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 40px; counter-reset: step; }
.step { border-top: 1px solid var(--ink); padding-top: 24px; }
.step::before {
  counter-increment: step; content: "0" counter(step);
  display: block; font-size: 15px; font-weight: 500; color: var(--muted);
  margin-bottom: 40px;
}
.step h3 { font-size: 18px; font-weight: 500; margin-bottom: 8px; }
.step p { font-size: 14.5px; color: var(--muted); }

/* ---------- 时间线(流程页,hairline rows) ---------- */
.timeline { border-top: 1px solid var(--line); }
.tl-item {
  display: grid; grid-template-columns: 200px 1fr; gap: 48px;
  padding: 40px 4px; border-bottom: 1px solid var(--line);
}
.tl-item .time { font-size: 14px; font-weight: 600; color: var(--blue); padding-top: 5px; }
.tl-item h3 { font-size: 21px; font-weight: 500; letter-spacing: -0.01em; margin-bottom: 8px; }
.tl-item p { color: var(--muted); font-size: 15.5px; max-width: 44em; }

/* ---------- 议程表 ---------- */
.agenda-card { border: 1px solid var(--line); border-radius: 20px; overflow: hidden; }
table.agenda { width: 100%; border-collapse: collapse; font-size: 15.5px; }
table.agenda th, table.agenda td { text-align: left; padding: 18px 32px; }
table.agenda thead tr { background: var(--surface); }
table.agenda th { font-size: 12.5px; letter-spacing: .1em; color: var(--muted); font-weight: 600; text-transform: uppercase; }
table.agenda tbody tr { border-top: 1px solid var(--line); }
table.agenda td:first-child { font-weight: 500; white-space: nowrap; color: var(--muted); }

/* ---------- 团队 ---------- */
.people { display: grid; grid-template-columns: repeat(4, 1fr); gap: 36px; }
.person { text-align: left; }
.person .avatar {
  width: 88px; height: 88px; margin-bottom: 18px; border-radius: 50%;
  background: var(--surface); color: var(--ink);
  font-size: 28px; font-weight: 500;
  display: flex; align-items: center; justify-content: center;
}
.person h3 { font-size: 16.5px; font-weight: 600; margin-bottom: 2px; }
.person p { font-size: 14px; color: var(--muted); }

/* ---------- 文本段落 ---------- */
.prose { max-width: 46em; }
.prose p { margin-bottom: 20px; color: #3c4043; font-size: 16.5px; line-height: 1.85; }
.prose strong { color: var(--ink); font-weight: 600; }

/* ---------- CTA 横幅(clean) ---------- */
.cta-banner {
  border-radius: 28px; padding: 84px 64px; text-align: center;
  background: var(--surface);
}
.cta-banner h2 { font-size: clamp(1.7rem, 3.2vw, 2.5rem); font-weight: 500; letter-spacing: -0.02em; margin-bottom: 14px; }
.cta-banner p { color: var(--muted); font-size: 16.5px; max-width: 34em; margin: 0 auto 32px; }

/* ---------- 页面标题区 ---------- */
.page-head { position: relative; padding: 170px 0 80px; overflow: hidden; }
.page-head h1 { font-size: clamp(2.5rem, 5vw, 3.8rem); font-weight: 500; letter-spacing: -0.03em; line-height: 1.15; }
.page-head p { margin-top: 20px; color: var(--muted); font-size: 17.5px; max-width: 38em; }
.page-head .kicker { font-size: 13.5px; font-weight: 600; color: var(--muted); letter-spacing: .08em; text-transform: uppercase; margin-bottom: 16px; }

/* ---------- 页脚 ---------- */
footer { border-top: 1px solid var(--line); padding: 64px 0 56px; margin-top: 40px; }
.foot { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 24px; }
.foot .brand-name { font-size: 15px; }
.foot-links { display: flex; gap: 28px; font-size: 14px; color: var(--muted); }
.foot-links a:hover { color: var(--ink); }
.copyright { margin-top: 36px; font-size: 13px; color: var(--muted); }

/* ---------- 单期详情页 ---------- */
.ep-meta { display: flex; gap: 12px 32px; flex-wrap: wrap; margin-top: 24px; font-size: 15px; color: var(--muted); }
.ep-meta strong { color: var(--ink); font-weight: 600; margin-right: 6px; }

.ep-hero { overflow: hidden; border-radius: 24px; }
.ep-hero img { width: 100%; object-fit: cover; }

.report-list { border-top: 1px solid var(--line); }
.report-item {
  display: grid; grid-template-columns: 56px 1fr 190px; gap: 36px; align-items: center;
  padding: 30px 4px; border-bottom: 1px solid var(--line);
}
.report-item .no { font-size: 15px; font-weight: 500; color: var(--muted); }
.report-item h3 { font-size: 19px; font-weight: 500; letter-spacing: -0.01em; line-height: 1.45; margin-bottom: 4px; }
.report-item .meta { font-size: 14px; color: var(--muted); }
.report-item .thumb { overflow: hidden; border-radius: 12px; }
.report-item .thumb img { width: 190px; height: 108px; object-fit: cover; transition: transform .5s; }
.report-item:hover .thumb img { transform: scale(1.05); }

/* ---------- 照片画廊 ---------- */
.gallery { columns: 3; column-gap: 20px; }
.gallery figure { break-inside: avoid; margin: 0 0 20px; overflow: hidden; border-radius: 16px; cursor: zoom-in; position: relative; }
.gallery img { width: 100%; display: block; transition: transform .6s cubic-bezier(.2,.6,.2,1), filter .3s; }
.gallery figure:hover img { transform: scale(1.04); filter: brightness(.92); }

/* ---------- 灯箱 ---------- */
.lightbox {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(15, 15, 15, 0.94);
  display: none; align-items: center; justify-content: center;
  opacity: 0; transition: opacity .25s;
}
.lightbox.open { display: flex; }
.lightbox.show { opacity: 1; }
.lightbox img { max-width: 90vw; max-height: 86vh; border-radius: 8px; }
.lb-btn {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 48px; height: 48px; border-radius: 50%; border: none; cursor: pointer;
  background: rgba(255,255,255,.12); color: #fff; font-size: 20px;
  display: flex; align-items: center; justify-content: center; transition: background .2s;
}
.lb-btn:hover { background: rgba(255,255,255,.24); }
.lb-prev { left: 24px; }
.lb-next { right: 24px; }
.lb-close { position: absolute; top: 20px; right: 24px; transform: none; }
.lb-count { position: absolute; bottom: 22px; left: 50%; transform: translateX(-50%); color: rgba(255,255,255,.7); font-size: 14px; }

/* ---------- 上一期/下一期 ---------- */
.ep-nav { display: flex; justify-content: space-between; gap: 16px; }
.ep-nav a { font-size: 15px; font-weight: 500; color: var(--blue); }
.ep-nav a:hover { text-decoration: underline; }
.ep-nav .disabled { color: var(--muted); pointer-events: none; }

/* ---------- 响应式 ---------- */
@media (max-width: 900px) {
  .grid-3, .steps { grid-template-columns: repeat(2, 1fr); }
  .grid-2 { grid-template-columns: 1fr; }
  .gallery { columns: 2; }
  .report-item { grid-template-columns: 32px 1fr; }
  .report-item .thumb { display: none; }
  .people { grid-template-columns: repeat(2, 1fr); }
  .feature { grid-template-columns: 1fr; gap: 32px; }
  .seminar-row { grid-template-columns: 40px 1fr auto; gap: 20px; }
  .sr-thumb-wrap { display: none; }
  .tl-item { grid-template-columns: 1fr; gap: 8px; }
  .stats { gap: 44px; }
  nav.links a:not(.active):not(.nav-cta) { display: none; }
  .hero { padding: 140px 0 80px; }
}

@media (max-width: 560px) {
  .grid-3, .grid-2, .steps, .people { grid-template-columns: 1fr; }
  .cta-banner { padding: 60px 28px; }
  .stats { gap: 32px; }
  .stat .num { font-size: 34px; }
}

/* ============ V2 Hero(居中 + 渐变标题 + Glow + Mockup) ============ */
@keyframes hv2Appear { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }
@keyframes hv2AppearZoom { from { opacity: 0; transform: scale(.95); } to { opacity: 1; transform: scale(1); } }

.hero-v2 { position: relative; padding: 150px 0 0; overflow: hidden; text-align: center; }
.hero-v2 .wrap { position: relative; display: flex; flex-direction: column; align-items: center; }

.hv2-badge {
  display: inline-flex; align-items: center; gap: 12px;
  padding: 7px 9px 7px 16px; border: 1px solid var(--line); border-radius: 999px;
  font-size: 13.5px; font-weight: 500; color: var(--muted);
  background: rgba(255, 255, 255, .72);
  opacity: 0; animation: hv2Appear .6s cubic-bezier(.2,.6,.2,1) forwards;
}
.hv2-badge .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--blue); animation: pulse 2.4s ease-in-out infinite; }
.hv2-badge a {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 3px 10px; border-radius: 999px;
  color: var(--ink); font-weight: 600; background: rgba(31,31,31,.05);
  transition: background .2s;
}
.hv2-badge a:hover { background: rgba(31,31,31,.1); }
.hv2-badge a .arr { transition: transform .25s; }
.hv2-badge a:hover .arr { transform: translateX(3px); }

.hv2-title {
  margin-top: 30px;
  font-size: clamp(3rem, 6.5vw, 5.2rem);
  font-weight: 600; line-height: 1.12; letter-spacing: -0.03em;
  background: linear-gradient(100deg, var(--ink) 30%, #7a8087 95%);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
  opacity: 0; animation: hv2Appear .7s .08s cubic-bezier(.2,.6,.2,1) forwards;
}

.hv2-desc {
  margin-top: 26px; max-width: 34em;
  font-size: 18px; font-weight: 500; color: var(--muted); line-height: 1.8;
  opacity: 0; animation: hv2Appear .7s .2s cubic-bezier(.2,.6,.2,1) forwards;
}

.hv2-actions {
  margin-top: 38px; display: flex; gap: 12px; flex-wrap: wrap; justify-content: center;
  opacity: 0; animation: hv2Appear .7s .34s cubic-bezier(.2,.6,.2,1) forwards;
}
.btn-glow {
  background: var(--blue); color: #fff;
  border: 1px solid transparent;
}
.btn-glow:hover { background: #1765cc; transform: scale(1.03); }

.hv2-stage { position: relative; margin-top: 72px; width: 100%; max-width: 960px; }
.hv2-glow { position: absolute; left: 50%; top: -30px; width: 130%; height: 520px; transform: translateX(-50%); pointer-events: none; opacity: 0; animation: hv2AppearZoom 1s .85s cubic-bezier(.2,.6,.2,1) forwards; }
.hv2-glow::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(ellipse 60% 55% at 50% 30%, rgba(155, 114, 203, .34) 0%, rgba(66, 133, 244, .2) 42%, rgba(66, 133, 244, 0) 72%);
  filter: blur(28px);
}
.hv2-frame {
  position: relative; z-index: 1;
  background: rgba(31, 31, 31, .045); padding: 10px; border-radius: 22px;
  opacity: 0; animation: hv2Appear .8s .6s cubic-bezier(.2,.6,.2,1) forwards;
}
.hv2-frame .shot {
  border-radius: 14px; overflow: hidden;
  border: 1px solid rgba(31, 31, 31, .07);
  box-shadow: 0 30px 90px rgba(31, 31, 31, .2), 0 2px 10px rgba(31, 31, 31, .07);
}
.hv2-frame img { width: 100%; display: block; }

.hv2-stats {
  display: flex; gap: 76px; flex-wrap: wrap; justify-content: center;
  margin-top: 68px; padding-bottom: 40px; text-align: left;
  opacity: 0; animation: hv2Appear .8s 1s cubic-bezier(.2,.6,.2,1) forwards;
}

@media (max-width: 900px) { .hero-v2 { padding-top: 120px; } .hv2-stats { gap: 44px; } }
@media (prefers-reduced-motion: reduce) {
  .hv2-badge, .hv2-title, .hv2-desc, .hv2-actions, .hv2-glow, .hv2-frame, .hv2-stats { animation: none; opacity: 1; }
}

/* ============ 单期回顾 Timeline(滚动进度线) ============ */
.tl2 { position: relative; max-width: 1060px; margin: 0 auto; }
.tl2-line {
  position: absolute; left: 11px; top: 0; height: 100%; width: 2px; overflow: hidden;
  background: linear-gradient(to bottom, transparent 0%, var(--line) 9%, var(--line) 91%, transparent 100%);
}
.tl2-progress {
  position: absolute; left: 0; top: 0; width: 100%; height: 0;
  background: linear-gradient(to bottom, #4285f4 0%, #9b72cb 90%, transparent 100%);
  border-radius: 999px; opacity: 0;
}

.tl2-item { position: relative; display: grid; grid-template-columns: 250px 1fr; gap: 44px; padding: 64px 0 20px; }
.tl2-head { position: sticky; top: 110px; align-self: start; display: flex; align-items: center; min-height: 40px; }
.tl2-dot {
  position: absolute; left: 0; width: 24px; height: 24px; border-radius: 50%;
  background: #fff; box-shadow: 0 0 0 1px var(--line);
  display: flex; align-items: center; justify-content: center;
}
.tl2-dot::after { content: ""; width: 9px; height: 9px; border-radius: 50%; background: #cdd3da; }
.tl2-head .tl2-no {
  margin-left: 58px;
  font-size: 46px; font-weight: 600; letter-spacing: -0.03em; line-height: 1;
  color: #c3c8cd;
}
.tl2-head .tl2-tag { margin-left: 14px; font-size: 13px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); }

.tl2-body h3 { font-size: 22px; font-weight: 500; letter-spacing: -0.01em; line-height: 1.4; margin-bottom: 8px; }
.tl2-body .meta { font-size: 14px; color: var(--blue); font-weight: 600; margin-bottom: 12px; }
.tl2-body > p { font-size: 15px; color: var(--muted); line-height: 1.8; max-width: 46em; }
.tl2-media { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 22px; }
.tl2-media figure { margin: 0; border-radius: 14px; overflow: hidden; cursor: zoom-in; }
.tl2-media img { width: 100%; height: 100%; aspect-ratio: 16 / 10; object-fit: cover; display: block; transition: transform .6s cubic-bezier(.2,.6,.2,1), filter .3s; }
.tl2-media figure:hover img { transform: scale(1.04); filter: brightness(.93); }

@media (max-width: 900px) {
  .tl2-item { grid-template-columns: 1fr; gap: 18px; padding-top: 48px; }
  .tl2-head { position: static; }
  .tl2-head .tl2-no { font-size: 34px; margin-left: 48px; }
  .tl2-body { padding-left: 48px; }
}
@media (max-width: 560px) {
  .tl2-media { grid-template-columns: 1fr; }
  .tl2-body { padding-left: 40px; }
  .tl2-head .tl2-no { margin-left: 40px; }
}