/* ============================================================
   首页专用样式
   ============================================================ */

/* ============ HERO：通栏广告位（顶部与导航熔接） ============ */
.site-header { border-bottom-color: transparent; }
.hero {
  position: relative;
  padding: 0;
  background:
    radial-gradient(900px 480px at 88% -14%, rgba(255, 94, 0, 0.11), transparent 62%),
    radial-gradient(720px 400px at -6% 96%, rgba(31, 95, 208, 0.07), transparent 64%),
    linear-gradient(180deg, #ffffff 0%, #ffffff 9%, #f5fafe 30%, #e9f0f9 70%, #f2f5f9 100%);
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(90deg, rgba(16, 27, 45, 0.05) 1px, transparent 1px),
    linear-gradient(180deg, rgba(16, 27, 45, 0.05) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.6), transparent 76%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.6), transparent 76%);
  pointer-events: none;
}
.hero > .wrap { position: relative; z-index: 1; }
.ad-slider { position: relative; }
.ad-track { display: grid; }
.ad-slide {
  grid-area: 1 / 1;
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
  gap: 48px;
  align-items: center;
  padding: 48px 0 40px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity 0.55s ease, transform 0.55s ease, visibility 0.55s;
}
.ad-slide.on { opacity: 1; visibility: visible; transform: none; }
.ad-copy { min-width: 0; }
.ad-kicker {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 16px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--orange);
}
.ad-code {
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: #fff;
  background: linear-gradient(135deg, var(--orange), var(--orange-2));
  border-radius: 4px;
  padding: 2px 7px;
}
.ad-title { font-size: 40px; line-height: 1.22; font-weight: 800; letter-spacing: 0.01em; margin-bottom: 16px; }
.ad-title em {
  font-style: normal;
  background: linear-gradient(120deg, var(--orange) 16%, var(--orange-2) 84%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.ad-sub { font-size: 16px; line-height: 1.8; color: var(--ink-soft); max-width: 560px; }
.ad-note {
  margin-top: 15px;
  padding-left: 12px;
  border-left: 2px solid var(--orange-line);
  font-size: 13px;
  color: var(--ink-soft);
  max-width: 540px;
}
.ad-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
.ad-visual {
  position: relative;
  justify-self: end;
  width: 100%;
  max-width: 468px;
  margin: 0;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid rgba(226, 232, 240, 0.9);
  background: #eef2f7;
  box-shadow: 0 26px 54px rgba(16, 27, 45, 0.16);
}
.ad-visual img { display: block; width: 100%; height: 100%; aspect-ratio: 1 / 1; object-fit: cover; }
.ad-visual figcaption {
  position: absolute;
  left: 10px;
  bottom: 10px;
  padding: 3px 9px;
  border-radius: 5px;
  background: rgba(11, 20, 36, 0.72);
  color: #e6edf6;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  backdrop-filter: blur(4px);
}

/* 轮播控件 */
.hero-nav {
  position: absolute;
  top: 46%;
  z-index: 4;
  display: none;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  margin-top: -20px;
  border: 1px solid var(--line-2);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.94);
  color: var(--ink);
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
  box-shadow: 0 6px 18px rgba(16, 27, 45, 0.14);
  opacity: 0;
  transition: opacity 0.2s, background 0.18s, color 0.18s, border-color 0.18s;
}
html.js .hero-nav { display: flex; }
.hero-prev { left: -20px; }
.hero-next { right: -20px; }
.ad-slider:hover .hero-nav,
.ad-slider:focus-within .hero-nav { opacity: 1; }
.hero-nav:hover { background: linear-gradient(135deg, var(--orange), var(--orange-2)); border-color: transparent; color: #fff; }
.hero-nav:focus-visible { opacity: 1; outline: 2px solid var(--orange); outline-offset: 2px; }
.hero-dots {
  display: none;
  justify-content: center;
  gap: 8px;
  margin-top: 4px;
  padding-bottom: 14px;
}
html.js .hero-dots { display: flex; }
.hero-dot {
  width: 8px;
  height: 8px;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: #cbd5e1;
  cursor: pointer;
  transition: background 0.18s, transform 0.18s;
}
.hero-dot:hover { background: #94a3b8; }
.hero-dot.on { background: var(--orange); transform: scale(1.3); }

/* 首屏数据条（通栏广告位底部的分隔条） */
.hero-facts {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 0;
  padding-bottom: 30px;
  border-top: 1px solid rgba(16, 27, 45, 0.1);
}
.hero-facts > div { padding: 18px 26px 0 0; }
.hero-facts > div + div { padding-left: 26px; border-left: 1px solid rgba(16, 27, 45, 0.08); }
.hero-facts dt {
  font-family: var(--mono);
  font-size: 26px;
  font-weight: 700;
  line-height: 1.25;
  color: var(--ink);
  transition: color 0.18s;
}
.hero-facts > div:hover dt { color: var(--orange); }
.hero-facts dd { font-size: 12.5px; color: var(--ink-soft); margin-top: 2px; }

/* ============ 方法论 ============ */
.method-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.method-card {
  position: relative;
  overflow: hidden;
  padding: 28px 24px;
  border-radius: var(--radius);
  background: var(--card);
  border: 1px solid var(--line);
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}
.method-card::after {
  content: "";
  position: absolute;
  right: -34px;
  top: -34px;
  width: 110px;
  height: 110px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 94, 0, 0.08), transparent 70%);
}
.method-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: var(--orange-line); }
.m-no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  margin-bottom: 14px;
  border-radius: 9px;
  font-family: var(--mono);
  font-size: 13.5px;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(135deg, var(--ink), #2a3b56);
}
.method-card:nth-child(2) .m-no { background: linear-gradient(135deg, var(--orange), var(--orange-2)); }
.method-card:nth-child(3) .m-no { background: linear-gradient(135deg, #1f5fd0, #5b9bf3); }
.method-card h3 { font-size: 18.5px; font-weight: 700; margin-bottom: 8px; }
.method-card p { font-size: 14px; color: var(--ink-soft); }

/* ============ GEO 深色带 ============ */
.geo-strip {
  color: #e6edf6;
  background:
    radial-gradient(820px 400px at 88% 0%, rgba(255, 94, 0, 0.16), transparent 56%),
    radial-gradient(620px 320px at 0% 100%, rgba(31, 95, 208, 0.16), transparent 58%),
    var(--dark);
}
.geo-inner { display: grid; grid-template-columns: 1.04fr 0.96fr; gap: 52px; align-items: center; }
.geo-copy h2 { font-size: 32px; font-weight: 800; line-height: 1.35; margin: 14px 0 14px; }
.geo-lead { color: #9fb0c6; font-size: 15px; }
.geo-points { list-style: none; margin: 20px 0 26px; }
.geo-points li {
  position: relative;
  padding: 9px 0 9px 24px;
  font-size: 14.5px;
  color: #cdd8e6;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
}
.geo-points li::before { content: "▸"; position: absolute; left: 2px; color: var(--orange); }
.geo-terminal {
  position: relative;
  padding: 24px 26px;
  border-radius: var(--radius);
  background: #060c17;
  border: 1px solid #1b2b46;
  box-shadow: 0 24px 56px rgba(0, 0, 0, 0.42);
  font-family: var(--mono);
}
.geo-terminal::before {
  content: "";
  position: absolute;
  top: 0; left: 22px; right: 22px;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--orange), transparent 70%);
}
.gt-title { font-size: 11.5px; letter-spacing: 0.1em; color: #5d718a; margin-bottom: 13px; }
.gt-q { font-size: 13.5px; color: #9fc3dd; margin-bottom: 11px; }
.gt-a { font-size: 13.5px; line-height: 1.9; color: #d7e3ec; }
.gt-a b { color: var(--orange); }
.gt-cursor { color: var(--orange); animation: caretBlink 1.1s steps(1) infinite; }
@keyframes caretBlink { 50% { opacity: 0; } }
.gt-ref { font-size: 11px; color: #4d6480; margin-top: 13px; }
.geo-copy .btn { margin-top: 4px; }

/* ============ 首页案例 ============ */
.case-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.case-card {
  display: block;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--card);
  border: 1px solid var(--line);
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}
.case-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-hover); border-color: var(--orange-line); }
.case-card img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; transition: transform 0.35s; }
.case-card:hover img { transform: scale(1.03); }
.case-body { padding: 18px 20px 22px; }
.case-meta { font-family: var(--mono); font-size: 11.5px; font-weight: 600; color: var(--orange); margin-bottom: 7px; }
.case-body h3 { font-size: 17.5px; font-weight: 700; margin-bottom: 7px; }
.case-sum { font-size: 13.5px; color: var(--ink-soft); }

/* ============ 课程横幅 ============ */
.lecture-strip {
  background: linear-gradient(118deg, #ff5e00 0%, #ff7a2f 58%, #ff9040 100%);
  color: #fff;
}
.lecture-inner { display: grid; grid-template-columns: 96px minmax(0, 1fr) auto; gap: 28px; align-items: center; }
.lecture-badge svg { width: 88px; height: 88px; }
.lecture-badge circle { stroke: rgba(255, 255, 255, 0.85); }
.lecture-badge text { fill: #fff; font-family: var(--mono); }
.lecture-copy h2 { font-size: 26px; font-weight: 800; margin-bottom: 8px; }
.lecture-copy p { font-size: 14.5px; color: rgba(255, 255, 255, 0.94); }
.lecture-topics { margin-top: 8px; font-family: var(--mono); font-size: 12px; color: rgba(255, 255, 255, 0.88); }
.lecture-strip .btn-orange {
  background: #fff;
  color: #d94e00;
  box-shadow: 0 8px 22px rgba(80, 20, 0, 0.2);
}
.lecture-strip .btn-orange:hover { background: #fff; color: #b03f00; }

/* ============ 首页资讯（一线笔记） ============ */
.notes {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
  gap: 22px;
  align-items: stretch;
}
.notes > * { min-width: 0; }

/* 左侧主稿 */
.note-lead {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--card);
  border: 1px solid var(--line);
  transition: transform 0.22s, box-shadow 0.22s, border-color 0.22s;
}
.note-lead:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); border-color: var(--orange-line); }
.note-lead-media { position: relative; display: block; overflow: hidden; background: var(--bg-soft); }
.note-lead-media img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  transition: transform 0.5s cubic-bezier(0.2, 0.7, 0.3, 1);
}
.note-lead:hover .note-lead-media img { transform: scale(1.035); }
.note-lead-media::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 42%;
  background: linear-gradient(180deg, rgba(11, 20, 36, 0), rgba(11, 20, 36, 0.42));
  pointer-events: none;
}
.note-body { display: flex; flex-direction: column; padding: 20px 24px 22px; flex: 1; }
.note-kicker {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  font-size: 11.5px;
  color: #93a3b5;
  letter-spacing: 0.02em;
}
.note-cat { color: var(--orange); font-weight: 600; }
.note-cat::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 6px;
  border-radius: 50%;
  background: var(--orange);
  vertical-align: 1px;
}
.note-lead .note-title { font-size: 23px; font-weight: 800; line-height: 1.42; letter-spacing: -0.01em; margin: 9px 0 8px; transition: color 0.18s; }
.note-lead:hover .note-title { color: var(--orange); }
.note-sum { font-size: 14px; line-height: 1.78; color: var(--ink-soft); }
.note-lead .note-more {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: auto;
  padding-top: 16px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ink);
}
.note-more svg { transition: transform 0.22s; }
.note-lead:hover .note-more { color: var(--orange); }
.note-lead:hover .note-more svg { transform: translateX(5px); }

/* 右侧条目轨 */
.note-list { list-style: none; display: grid; grid-auto-rows: 1fr; border-top: 1px solid var(--line); }
.note-li { border-bottom: 1px solid var(--line); }
.note-li > a {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  height: 100%;
  padding: 16px 14px 16px 12px;
  border-radius: 8px;
  transition: background 0.2s, box-shadow 0.2s;
}
.note-li > a:hover { background: var(--card); box-shadow: inset 2px 0 0 var(--orange); }
.note-idx {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  color: #b6c2d1;
  padding-top: 2px;
  flex-shrink: 0;
  transition: color 0.2s;
}
.note-li > a:hover .note-idx { color: var(--orange); }
.note-li-body { display: flex; flex-direction: column; gap: 5px; min-width: 0; }
.note-li-title {
  font-size: 15px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--ink);
  transition: color 0.18s;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.note-li > a:hover .note-li-title { color: var(--orange); }
.note-li-sum {
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-soft);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ============ 响应式 ============ */
@media (max-width: 1080px) {
  .geo-inner { grid-template-columns: 1fr; }
  .ad-slide { grid-template-columns: 1fr; gap: 28px; padding: 36px 0 30px; }
  .ad-visual { max-width: 520px; justify-self: start; }
  .ad-title { font-size: 34px; }
  .case-grid { grid-template-columns: 1fr; }
  .method-grid { grid-template-columns: 1fr; }
  .notes { grid-template-columns: 1fr; gap: 18px; }
  .lecture-inner { grid-template-columns: 72px minmax(0, 1fr); }
  .lecture-inner .btn { grid-column: 1 / -1; justify-self: start; }
}
@media (max-width: 720px) {
  .ad-slide { padding: 26px 0 24px; gap: 22px; }
  .ad-kicker { font-size: 11px; margin-bottom: 12px; }
  .ad-title { font-size: 27px; margin-bottom: 12px; }
  .ad-sub { font-size: 14.5px; }
  .ad-note { font-size: 12.5px; margin-top: 10px; }
  .ad-actions { margin-top: 18px; gap: 8px; }
  .ad-actions .btn { padding: 10px 18px; font-size: 14px; }
  .ad-visual { max-width: 100%; }
  .ad-visual img { aspect-ratio: 4 / 3; }
  .hero-nav { display: none !important; }
  .hero-facts { grid-template-columns: repeat(2, minmax(0, 1fr)); padding-bottom: 26px; }
  .hero-facts > div { padding: 14px 16px 0 0; }
  .hero-facts > div + div { padding-left: 16px; }
  .hero-facts > div:nth-child(odd) { padding-left: 0; border-left: none; }
  .hero-facts > div:nth-child(3), .hero-facts > div:nth-child(4) { margin-top: 12px; border-top: 1px solid rgba(16, 27, 45, 0.08); }
  .hero-facts dt { font-size: 22px; }
  .note-lead .note-title { font-size: 20px; }
  .note-body { padding: 18px 18px 20px; }
  .note-list { grid-auto-rows: auto; }
  .note-li > a { padding: 14px 8px 14px 10px; }
  .geo-copy h2 { font-size: 25px; }
  .lecture-inner { grid-template-columns: 1fr; gap: 14px; }
  .lecture-badge { display: none; }
  .lecture-copy h2 { font-size: 22px; }
}

/* ============ 01 技术开发：能力矩阵 ============ */
.cap-board {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}
.cap-shot {
  position: relative;
  grid-column: span 2;
  grid-row: span 2;
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--dark);
  box-shadow: 0 14px 32px rgba(16, 27, 45, 0.12);
}
.cap-shot img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s ease; }
.cap-shot::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(9, 16, 28, 0) 30%, rgba(9, 16, 28, 0.88) 100%);
}
.cap-shot:hover img { transform: scale(1.04); }
.cap-shot figcaption { position: absolute; left: 0; right: 0; bottom: 0; z-index: 2; padding: 22px 24px; color: #fff; }
.cap-shot-k {
  display: block;
  margin-bottom: 9px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  color: var(--orange-2);
}
.cap-shot figcaption b { display: block; font-size: 21px; font-weight: 800; line-height: 1.45; }
.cap-shot-sub {
  display: block;
  margin-top: 7px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: #b6c5d7;
}

.cap-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-height: 128px;
  padding: 15px 18px 14px;
  border-radius: var(--radius);
  background: var(--card);
  border: 1px solid var(--line);
  overflow: hidden;
  transition: transform 0.18s, box-shadow 0.18s, border-color 0.18s;
}
.cap-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--orange), var(--orange-2));
  transform: scaleY(0);
  transform-origin: center top;
  transition: transform 0.24s;
}
.cap-card:hover { transform: translateY(-3px); border-color: var(--orange-line); box-shadow: var(--shadow-hover); }
.cap-card:hover::before { transform: scaleY(1); }
.cap-card:active { transform: translateY(-1px); }
.cap-top { display: flex; align-items: center; justify-content: space-between; gap: 10px; font-family: var(--mono); }
.cap-code { font-size: 10.5px; font-weight: 700; letter-spacing: 0.14em; color: var(--orange); }
.cap-go { font-size: 15px; line-height: 1; color: #c3cede; transition: color 0.18s, transform 0.18s; }
.cap-name { font-size: 15.5px; font-weight: 700; line-height: 1.45; }
.cap-tag {
  margin-top: auto;
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--ink-soft);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.cap-card:hover .cap-go { color: var(--orange); transform: translateX(3px); }

/* ============ 02 运营服务：深色运营看板 ============ */
.ops-board {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 480px;
  border-radius: 18px;
  overflow: hidden;
  color: #e6edf6;
  background:
    radial-gradient(680px 320px at 92% 0%, rgba(255, 94, 0, 0.18), transparent 58%),
    radial-gradient(540px 300px at 0% 100%, rgba(31, 95, 208, 0.2), transparent 62%),
    var(--dark);
  box-shadow: 0 22px 50px rgba(11, 20, 36, 0.22);
}
.ops-main { padding: 24px 26px 20px; min-width: 0; }
.ops-lead {
  font-size: 14px;
  line-height: 1.7;
  color: #a3b6cb;
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.09);
}
.ops-list { list-style: none; margin-top: 4px; }
.ops-list li + li { border-top: 1px solid rgba(255, 255, 255, 0.07); }
.ops-item {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr) 18px;
  align-items: center;
  gap: 2px 14px;
  padding: 12px 12px 12px 10px;
  border-radius: 10px;
  transition: background 0.18s, transform 0.18s;
}
.ops-item:hover { background: rgba(255, 255, 255, 0.055); transform: translateX(3px); }
.ops-item:active { transform: translateX(1px); }
.ops-no {
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--orange-2);
}
.ops-text { min-width: 0; }
.ops-text b { display: block; font-size: 15px; font-weight: 700; line-height: 1.45; color: #f2f6fb; }
.ops-text i { display: block; margin-top: 1px; font-style: normal; font-size: 12.5px; line-height: 1.6; color: #8fa2b8; }
.ops-go { font-size: 15px; line-height: 1; color: #5f7489; transition: color 0.18s, transform 0.18s; }
.ops-item:hover .ops-go { color: var(--orange); transform: translateX(3px); }
.ops-shot { position: relative; margin: 0; overflow: hidden; min-height: 100%; background: #060c17; }
.ops-shot img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s ease; }
.ops-shot::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(6, 12, 23, 0.08) 42%, rgba(6, 12, 23, 0.92) 100%);
}
.ops-shot:hover img { transform: scale(1.03); }
.ops-shot figcaption { position: absolute; left: 0; right: 0; bottom: 0; z-index: 2; padding: 20px 22px; }
.ops-shot-k { display: block; font-family: var(--mono); font-size: 10px; letter-spacing: 0.16em; color: var(--orange-2); }
.ops-shot figcaption b { display: block; margin-top: 7px; font-size: 15.5px; font-weight: 700; color: #fff; }

@media (max-width: 1080px) {
  .cap-board { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .cap-shot { grid-column: 1 / -1; grid-row: auto; height: 240px; }
  .ops-board { grid-template-columns: 1fr; }
  .ops-shot { order: -1; min-height: 0; height: 240px; }
}
@media (max-width: 720px) {
  .cap-board { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
  .cap-shot { height: 210px; }
  .cap-shot figcaption { padding: 16px 18px; }
  .cap-shot figcaption b { font-size: 17px; }
  .cap-shot-sub { font-size: 11px; }
  .cap-card { min-height: 0; padding: 13px 14px; }
  .cap-name { font-size: 14.5px; }
  .cap-tag { font-size: 12px; }
  .ops-main { padding: 18px 16px 14px; }
  .ops-item { grid-template-columns: 50px minmax(0, 1fr) 16px; gap: 2px 10px; padding: 11px 8px; }
  .ops-text b { font-size: 14.5px; }
  .ops-shot { height: 200px; }
}

/* ============ 广告位切换：文案与配图分段入场 ============ */
@keyframes adCopyIn {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: none; }
}
@keyframes adVisualIn {
  from { opacity: 0; transform: scale(0.97); }
  to { opacity: 1; transform: none; }
}
.ad-slide.on .ad-kicker { animation: adCopyIn 0.5s cubic-bezier(0.2, 0.7, 0.3, 1) 0.02s both; }
.ad-slide.on .ad-title { animation: adCopyIn 0.55s cubic-bezier(0.2, 0.7, 0.3, 1) 0.08s both; }
.ad-slide.on .ad-sub { animation: adCopyIn 0.55s cubic-bezier(0.2, 0.7, 0.3, 1) 0.14s both; }
.ad-slide.on .ad-note { animation: adCopyIn 0.55s cubic-bezier(0.2, 0.7, 0.3, 1) 0.2s both; }
.ad-slide.on .ad-actions { animation: adCopyIn 0.55s cubic-bezier(0.2, 0.7, 0.3, 1) 0.26s both; }
.ad-slide.on .ad-visual { animation: adVisualIn 0.68s cubic-bezier(0.2, 0.7, 0.3, 1) 0.1s both; }