/* ==========================================================================
   薯灵感 SparkNote · 产品全景交互式介绍页 /explore
   风格：小红书（#FF2442）+ 明亮清爽 + 圆润有温度
   动效：只用 transform / opacity，尊重 prefers-reduced-motion
   ========================================================================== */

:root {
  --ex-red: #FF2442;
  --ex-red-600: #E01230;
  --ex-red-50: #FFF0F2;
  --ex-red-100: #FFE0E5;
  --ex-ink: #1F1B1D;
  --ex-ink-2: #5A5F66;
  --ex-ink-3: #6E6869;
  --ex-bg: #FBF9FA;
  --ex-surface: #FFFFFF;
  --ex-line: #EFEAEC;
  --ex-line-2: #E4DDDF;
  --ex-dark: #141013;
  --ex-dark-2: #241C20;

  --ex-r-12: 12px;
  --ex-r-16: 16px;
  --ex-r-24: 24px;
  --ex-r-32: 32px;

  --ex-sh-sm: 0 1px 2px rgba(31, 27, 29, .05), 0 2px 8px rgba(31, 27, 29, .04);
  --ex-sh-md: 0 2px 8px rgba(31, 27, 29, .05), 0 10px 28px rgba(31, 27, 29, .07);
  --ex-sh-lg: 0 6px 18px rgba(31, 27, 29, .07), 0 24px 56px rgba(31, 27, 29, .10);
  --ex-sh-glow: 0 0 0 1px rgba(255, 36, 66, .14), 0 10px 30px rgba(255, 36, 66, .22);

  --ex-ease: cubic-bezier(.22, .61, .36, 1);
  --ex-ease-out: cubic-bezier(.16, 1, .3, 1);
  --ex-max: 1200px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 76px; }

body.ex-body {
  margin: 0;
  background: var(--ex-bg);
  color: var(--ex-ink);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
               "Microsoft YaHei", "Helvetica Neue", Inter, Arial, sans-serif;
  font-size: 15px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body.ex-body.modal-open { overflow: hidden; }

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.ex-wrap { width: 100%; max-width: var(--ex-max); margin: 0 auto; padding: 0 24px; }
.ex-narrow { max-width: 880px; }

/* ---------------- 通用：区块标题 ---------------- */
.ex-sec { position: relative; padding: 48px 0; }
.ex-sec.tint { background: var(--ex-surface); }
.ex-sec.soft { background: linear-gradient(180deg, #FFF6F7 0%, #FBF9FA 100%); }

.ex-head { max-width: 760px; margin: 0 auto 32px; text-align: center; }
.ex-eyebrow {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 5px 14px; border-radius: 999px;
  background: var(--ex-red-50); color: var(--ex-red);
  font-size: 12px; font-weight: 600; letter-spacing: .04em;
}
.ex-head h2 {
  margin: 13px 0 9px; font-size: 30px; line-height: 1.28; font-weight: 700;
  letter-spacing: -.01em;
}
.ex-head h2 em { font-style: normal; color: var(--ex-red); }
.ex-head p { margin: 0; color: var(--ex-ink-2); font-size: 15px; }

/* ---------------- 波浪分隔 ---------------- */
.ex-wave { display: block; width: 100%; height: 32px; margin: -1px 0; }
.ex-wave path { fill: var(--ex-surface); }
.ex-wave.to-surface path { fill: var(--ex-surface); }
.ex-wave.to-bg path { fill: var(--ex-bg); }

/* ==========================================================================
   顶部导航
   ========================================================================== */
.ex-nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 80;
  height: 64px; display: flex; align-items: center;
  background: rgba(255, 255, 255, .72);
  -webkit-backdrop-filter: saturate(180%) blur(14px); backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transform: translateY(0);
  transition: transform .3s var(--ex-ease), border-color .3s, background .3s, box-shadow .3s;
}
.ex-nav.solid { border-bottom-color: var(--ex-line); box-shadow: 0 2px 12px rgba(31, 27, 29, .05); }
.ex-nav.hide { transform: translateY(-100%); }
.ex-nav .ex-wrap { display: flex; align-items: center; gap: 18px; }

.ex-logo { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 16px; }
.ex-logo .ex-mark {
  width: 30px; height: 30px; border-radius: 9px; display: grid; place-items: center;
  background: linear-gradient(135deg, #E02039, #FF6B7E);
  color: #fff; font-size: 15px; box-shadow: 0 4px 12px rgba(255, 36, 66, .32);
}
.ex-nav-links { display: flex; gap: 4px; margin-left: auto; overflow-x: auto; scrollbar-width: none;  position:relative; -webkit-overflow-scrolling:touch; }
.ex-nav-links::-webkit-scrollbar { display: none; }
.ex-nav-links a {
  padding: 7px 12px; border-radius: 999px; font-size: 13.5px; color: var(--ex-ink-2);
  white-space: nowrap; transition: color .2s, background .2s;
}
.ex-nav-links a:hover { color: var(--ex-red); background: var(--ex-red-50); }
.ex-nav-links a.on { color: var(--ex-red); background: var(--ex-red-50); font-weight: 600; }

.ex-back {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 16px; border-radius: 999px; font-size: 13.5px; font-weight: 600;
  background: var(--ex-ink); color: #fff; white-space: nowrap;
  transition: transform .2s var(--ex-ease), box-shadow .2s;
}
.ex-back:hover { transform: translateY(-2px); box-shadow: 0 6px 16px rgba(31, 27, 29, .24); }

/* ==========================================================================
   区块一 · Hero
   ========================================================================== */
.ex-hero {
  position: relative; min-height: 100vh; display: grid; place-items: center;
  padding: 104px 0 66px; overflow: hidden;
  background: radial-gradient(1200px 700px at 50% 8%, #3A1420 0%, var(--ex-dark) 46%, #0B0809 100%);
  color: #fff; text-align: center;
}
.ex-hero-grid, .ex-hero-aurora, .ex-hero-dots { position: absolute; inset: 0; pointer-events: none; }

.ex-hero-grid {
  background-image:
    linear-gradient(rgba(255, 255, 255, .05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .05) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(circle at 50% 42%, #000 0%, transparent 72%);
  -webkit-mask-image: radial-gradient(circle at 50% 42%, #000 0%, transparent 72%);
  opacity: .8;
}
.ex-hero-aurora::before, .ex-hero-aurora::after {
  content: ''; position: absolute; border-radius: 50%; filter: blur(70px);
}
.ex-hero-aurora::before {
  width: 620px; height: 620px; left: 50%; top: 4%; margin-left: -310px;
  background: radial-gradient(circle, rgba(255, 36, 66, .40), transparent 68%);
  animation: exAurora1 16s ease-in-out infinite alternate;
}
.ex-hero-aurora::after {
  width: 520px; height: 520px; left: 12%; bottom: -8%;
  background: radial-gradient(circle, rgba(255, 122, 140, .26), transparent 70%);
  animation: exAurora2 20s ease-in-out infinite alternate;
}
@keyframes exAurora1 { from { transform: translate3d(0, 0, 0) scale(1); } to { transform: translate3d(60px, 40px, 0) scale(1.14); } }
@keyframes exAurora2 { from { transform: translate3d(0, 0, 0) scale(1.05); } to { transform: translate3d(-70px, -50px, 0) scale(.92); } }

.ex-dot {
  position: absolute; width: 5px; height: 5px; border-radius: 50%;
  background: rgba(255, 255, 255, .5);
  animation: exFloat linear infinite;
}
@keyframes exFloat {
  0%   { transform: translate3d(0, 0, 0); opacity: 0; }
  12%  { opacity: .85; }
  88%  { opacity: .85; }
  100% { transform: translate3d(var(--dx, 20px), -120px, 0); opacity: 0; }
}

.ex-hero-inner { position: relative; z-index: 2; }
.ex-badge-mark {
  width: 96px; height: 96px; margin: 0 auto 28px; border-radius: 26px;
  display: grid; place-items: center; font-size: 40px; font-weight: 800; color: #fff;
  background: linear-gradient(135deg, #E02039 0%, #FF6B7E 100%);
  box-shadow: 0 0 0 1px rgba(255, 255, 255, .16), 0 18px 50px rgba(255, 36, 66, .45);
  animation: exBreath 3.6s ease-in-out infinite;
}
@keyframes exBreath {
  0%, 100% { transform: scale(1); box-shadow: 0 0 0 1px rgba(255,255,255,.16), 0 18px 50px rgba(255,36,66,.42); }
  50%      { transform: scale(1.045); box-shadow: 0 0 0 1px rgba(255,255,255,.22), 0 26px 66px rgba(255,36,66,.60); }
}

.ex-hero h1 {
  margin: 0; font-size: 56px; line-height: 1.16; font-weight: 800; letter-spacing: -.02em;
}
.ex-hero h1 span {
  background: linear-gradient(100deg, #FF6B7E, #FF2442 60%, #FFB0BB);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.ex-hero .ex-sub { margin: 20px auto 0; max-width: 640px; font-size: 18px; color: rgba(255, 255, 255, .74); }
.ex-hero .ex-tags { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin-top: 26px; }
.ex-hero .ex-tags span {
  padding: 6px 14px; border-radius: 999px; font-size: 13px;
  background: rgba(255, 255, 255, .09); border: 1px solid rgba(255, 255, 255, .14);
  color: rgba(255, 255, 255, .85);
}

.ex-stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px;
  max-width: 860px; margin: 38px auto 0;
}
.ex-stat {
  padding: 20px 12px; border-radius: var(--ex-r-16);
  background: rgba(255, 255, 255, .06); border: 1px solid rgba(255, 255, 255, .12);
  -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px);
}
.ex-stat b { display: block; font-size: 32px; font-weight: 800; line-height: 1.1; color: #fff; }
.ex-stat b i { font-style: normal; font-size: 15px; margin-left: 3px; opacity: .7; }
.ex-stat span { font-size: 12.5px; color: rgba(255, 255, 255, .62); }

.ex-hero-cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-top: 30px; }

.ex-scroll-hint {
  position: absolute; left: 50%; bottom: 26px; transform: translateX(-50%);
  z-index: 2; display: grid; place-items: center; gap: 8px;
  color: rgba(255, 255, 255, .55); font-size: 12px; letter-spacing: .1em;
}
.ex-scroll-hint .ex-arrow { animation: exArrow 1.7s var(--ex-ease) infinite; font-size: 18px; }
@keyframes exArrow {
  0%, 100% { transform: translateY(0); opacity: .5; }
  50%      { transform: translateY(9px); opacity: 1; }
}

/* ==========================================================================
   通用按钮
   ========================================================================== */
.ex-btn {
  position: relative; display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 26px; border-radius: 999px; font-size: 15px; font-weight: 600;
  border: 0; cursor: pointer; overflow: hidden;
  background: linear-gradient(135deg, #E02039, #FF5A6E); color: #fff;
  box-shadow: 0 6px 18px rgba(255, 36, 66, .32);
  transition: transform .22s var(--ex-ease), box-shadow .22s;
  will-change: transform;
}
.ex-btn:hover { box-shadow: 0 10px 28px rgba(255, 36, 66, .42); }
.ex-btn.ghost {
  background: rgba(255, 255, 255, .1); color: #fff;
  border: 1px solid rgba(255, 255, 255, .22); box-shadow: none;
}
.ex-btn.ghost:hover { background: rgba(255, 255, 255, .16); }
.ex-btn.light {
  background: #fff; color: var(--ex-red);
  box-shadow: 0 6px 18px rgba(255, 255, 255, .28);
}
.ex-btn.lg { padding: 16px 34px; font-size: 16px; }

/* Ripple */
.ex-ripple {
  position: absolute; border-radius: 50%; transform: scale(0); opacity: .5;
  background: rgba(255, 255, 255, .55); pointer-events: none;
  animation: exRipple .6s var(--ex-ease-out) forwards;
}
@keyframes exRipple { to { transform: scale(2.6); opacity: 0; } }

/* ClickSpark 火花 */
.ex-spark {
  position: fixed; width: 6px; height: 6px; border-radius: 50%;
  background: #FFC9D1; pointer-events: none; z-index: 999;
  animation: exSpark .62s var(--ex-ease-out) forwards;
}
@keyframes exSpark {
  0%   { transform: translate3d(0, 0, 0) scale(1); opacity: 1; }
  100% { transform: translate3d(var(--sx), var(--sy), 0) scale(.2); opacity: 0; }
}

/* ==========================================================================
   区块二 · 问题与答案
   ========================================================================== */
.ex-pa { display: grid; grid-template-columns: 1fr 92px 1fr; gap: 24px; align-items: start; }
.ex-pain { display: grid; gap: 12px; }
.ex-pain-item {
  position: relative; padding: 13px 16px; border-radius: var(--ex-r-16);
  background: var(--ex-surface); border: 1px solid var(--ex-line);
  cursor: pointer; overflow: hidden;
  transition: transform .24s var(--ex-ease), box-shadow .24s, border-color .24s;
}
.ex-pain-item::after {
  content: ''; position: absolute; inset: 0; border-radius: inherit; opacity: 0;
  background: radial-gradient(320px circle at var(--mx, 50%) var(--my, 50%), rgba(255, 36, 66, .10), transparent 60%);
  transition: opacity .25s; pointer-events: none; }
.ex-pain-item:hover { transform: translateY(-3px); box-shadow: var(--ex-sh-md); }
.ex-pain-item:hover::after { opacity: 1; }
.ex-pain-item.on { border-color: var(--ex-red); box-shadow: var(--ex-sh-glow); }
.ex-pain-item .t { display: flex; align-items: center; gap: 9px; font-weight: 600; font-size: 15px; }
.ex-pain-item .t i[data-icon] { color: var(--ex-ink-3); }
.ex-pain-item.on .t i[data-icon] { color: var(--ex-red); }
.ex-pain-item .d {
  max-height: 0; opacity: 0; overflow: hidden; margin-top: 0;
  font-size: 13.5px; color: var(--ex-ink-2);
  transition: max-height .34s var(--ex-ease), opacity .28s, margin-top .28s;
}
.ex-pain-item.on .d, .ex-pain-item:hover .d { max-height: 130px; opacity: 1; margin-top: 8px; }

.ex-arrow-mid { display: grid; place-items: center; padding-top: 26px; }
.ex-arrow-mid .ex-flow {
  width: 46px; height: 46px; border-radius: 50%; display: grid; place-items: center;
  background: var(--ex-red); color: #fff; font-size: 18px;
  box-shadow: 0 6px 18px rgba(255, 36, 66, .34);
  animation: exPush 1.9s var(--ex-ease) infinite;
}
@keyframes exPush {
  0%, 100% { transform: translateX(0); }
  50%      { transform: translateX(7px); }
}

.ex-answer {
  padding: 20px; border-radius: var(--ex-r-24); color: #fff; position: relative; overflow: hidden;
  background: linear-gradient(140deg, #E02039 0%, #E01230 100%);
  box-shadow: 0 18px 44px rgba(255, 36, 66, .26);
}
.ex-answer h3 { margin: 0 0 6px; font-size: 20px; }
.ex-answer .lead { margin: 0 0 18px; font-size: 14px; color: rgba(255, 255, 255, .82); }
.ex-ans-list { display: grid; gap: 10px; }
.ex-ans-row {
  display: flex; gap: 11px; align-items: flex-start; padding: 12px 14px; border-radius: 14px;
  background: rgba(255, 255, 255, .12); border: 1px solid rgba(255, 255, 255, .16);
  transition: transform .26s var(--ex-ease), background .26s, box-shadow .26s;
}
.ex-ans-row.hot {
  background: rgba(255, 255, 255, .28);
  box-shadow: 0 0 0 1px rgba(255, 255, 255, .5), 0 8px 22px rgba(0, 0, 0, .14);
  transform: translateY(-2px);
}
.ex-ans-row i[data-icon] { color: #fff; flex: none; margin-top: 2px; }
.ex-ans-row b { display: block; font-size: 14.5px; }
.ex-ans-row p { margin: 3px 0 0; font-size: 13px; color: rgba(255, 255, 255, .8); }

/* ==========================================================================
   区块三 · 产品全景图
   ========================================================================== */
.ex-pano { display: grid; grid-template-columns: 1fr; gap: 22px; }
.ex-pano-svg { width: 100%; height: auto; display: block; }
.ex-pano-node { cursor: pointer; }
.ex-pano-node .box { transition: transform .3s var(--ex-ease), filter .3s; transform-origin: center; }
.ex-pano-node:hover .box { transform: translateY(-4px); filter: drop-shadow(0 10px 22px rgba(255, 36, 66, .28)); }
.ex-pano-node.on .box { filter: drop-shadow(0 12px 26px rgba(255, 36, 66, .40)); }
.ex-flow-line { stroke-dasharray: 8 8; animation: exDash 1.6s linear infinite; }
@keyframes exDash { to { stroke-dashoffset: -32; } }

.ex-pano-detail {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px;
}
.ex-pano-card {
  padding: 18px; border-radius: var(--ex-r-24); background: var(--ex-surface);
  border: 1px solid var(--ex-line); box-shadow: var(--ex-sh-sm);
  transition: transform .28s var(--ex-ease), box-shadow .28s, border-color .28s;
}
.ex-pano-card.on { border-color: var(--ex-red); box-shadow: var(--ex-sh-glow); transform: translateY(-4px); }
.ex-pano-card h4 { margin: 12px 0 8px; font-size: 17px; display: flex; align-items: center; gap: 8px; }
.ex-pano-card p { margin: 0 0 14px; font-size: 13.5px; color: var(--ex-ink-2); }
.ex-pano-card ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 7px; }
.ex-pano-card li { font-size: 13px; color: var(--ex-ink-2); display: flex; gap: 7px; }
.ex-pano-card li::before { content: '·'; color: var(--ex-red); font-weight: 800; }
.ex-chip {
  display: inline-block; padding: 4px 10px; border-radius: 999px; font-size: 12px; font-weight: 600;
  background: var(--ex-red-50); color: var(--ex-red);
}

/* ==========================================================================
   区块四 · 16+1 模块 Bento
   ========================================================================== */
.ex-filter { display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; margin-bottom: 20px; }
.ex-filter button {
  padding: 8px 18px; border-radius: 999px; border: 1px solid var(--ex-line-2);
  background: var(--ex-surface); color: var(--ex-ink-2); font-size: 13.5px; cursor: pointer;
  font-family: inherit; transition: all .22s var(--ex-ease);
}
.ex-filter button:hover { border-color: var(--ex-red); color: var(--ex-red); }
.ex-filter button.on { background: var(--ex-red); border-color: var(--ex-red); color: #fff; font-weight: 600; }

.ex-bento { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.ex-mod {
  position: relative; padding: 16px; border-radius: var(--ex-r-16); text-align: left;
  background: var(--ex-surface); border: 1px solid var(--ex-line);
  cursor: pointer; overflow: hidden; font-family: inherit;
  transition: transform .26s var(--ex-ease), box-shadow .26s, border-color .26s, opacity .3s;
}
.ex-mod::after {
  content: ''; position: absolute; inset: -1px; border-radius: inherit; opacity: 0;
  padding: 1px; pointer-events: none;
  background: linear-gradient(140deg, rgba(255, 36, 66, .55), rgba(255, 107, 126, .18) 55%, transparent);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
  transition: opacity .28s;
}
.ex-mod:hover { transform: translateY(-5px); box-shadow: var(--ex-sh-md); border-color: transparent; }
.ex-mod:hover::after { opacity: 1; }
.ex-mod.hide { display: none; }
.ex-mod .ico {
  width: 34px; height: 34px; border-radius: 11px; display: grid; place-items: center;
  background: var(--ex-red-50); color: var(--ex-red); margin-bottom: 9px;
  transition: transform .28s var(--ex-ease);
}
.ex-mod:hover .ico { transform: scale(1.08) rotate(-4deg); }
.ex-mod b { display: block; font-size: 15px; font-weight: 600; }
.ex-mod span { display: block; margin-top: 5px; font-size: 12.5px; color: var(--ex-ink-3); line-height: 1.5; }
.ex-mod.feature {
  grid-column: span 2;
  background: linear-gradient(135deg, #E02039, #FF6B7E); color: #fff; border-color: transparent;
}
.ex-mod.feature .ico { background: rgba(255, 255, 255, .2); color: #fff; }
.ex-mod.feature span { color: rgba(255, 255, 255, .86); }

/* ==========================================================================
   区块五 · Tab 演示
   ========================================================================== */
.ex-tabs { display: flex; gap: 6px; justify-content: center; flex-wrap: wrap; margin-bottom: 20px; }
.ex-tabs button {
  padding: 10px 20px; border-radius: 999px; border: 1px solid var(--ex-line-2);
  background: var(--ex-surface); color: var(--ex-ink-2); font-size: 14px; cursor: pointer;
  font-family: inherit; transition: all .22s var(--ex-ease);
}
.ex-tabs button:hover { border-color: var(--ex-red); color: var(--ex-red); }
.ex-tabs button.on { background: var(--ex-red); border-color: var(--ex-red); color: #fff; font-weight: 600; }

.ex-panel { display: none; }
.ex-panel.on { display: grid; grid-template-columns: 1fr 1.05fr; gap: 34px; align-items: center; animation: exFadeUp .5s var(--ex-ease-out) both; }
@keyframes exFadeUp { from { opacity: 0; transform: translate3d(0, 18px, 0); } to { opacity: 1; transform: none; } }
.ex-panel h3 { margin: 0 0 10px; font-size: 24px; }
.ex-panel .desc { margin: 0 0 18px; color: var(--ex-ink-2); font-size: 15px; }
.ex-tech { display: grid; gap: 9px; margin-bottom: 20px; }
.ex-tech div { display: flex; gap: 9px; font-size: 13.5px; color: var(--ex-ink-2); }
.ex-tech i[data-icon] { color: var(--ex-red); flex: none; }
.ex-panel .ex-shot { min-height: 250px; }

/* 占位图 */
.ex-ph {
  position: relative; border-radius: var(--ex-r-24); overflow: hidden;
  background: linear-gradient(135deg, #FFF0F2 0%, #F8F4F5 100%);
  border: 1px dashed var(--ex-line-2);
  display: grid; place-items: center; text-align: center; min-height: 190px;
}
.ex-ph::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(100deg, transparent 20%, rgba(255, 255, 255, .85) 50%, transparent 80%);
  transform: translateX(-100%); animation: exShimmer 2.6s var(--ex-ease) infinite;
}
@keyframes exShimmer { to { transform: translateX(100%); } }
.ex-ph .inner { position: relative; z-index: 1; padding: 22px; }
.ex-ph .k {
  display: inline-block; padding: 5px 12px; border-radius: 999px; font-size: 12px; font-weight: 700;
  background: var(--ex-red); color: #fff; letter-spacing: .05em;
}
.ex-ph .t { margin: 12px 0 4px; font-size: 15px; font-weight: 600; color: var(--ex-ink); }
.ex-ph .s { font-size: 12.5px; color: var(--ex-ink-3); }
.ex-ph.dark { background: linear-gradient(135deg, #241C20, #141013); border-color: #3A2E33; }
.ex-ph.dark .t { color: #fff; }
.ex-ph.dark .s { color: rgba(255, 255, 255, .5); }

/* ==========================================================================
   区块六 / 七 · 薯薯
   ========================================================================== */
.ex-shushu { display: grid; grid-template-columns: .82fr 1.18fr; gap: 34px; align-items: start; }
.ex-shu-stage {
  position: relative; border-radius: var(--ex-r-32); padding: 30px; text-align: center;
  background: linear-gradient(165deg, #FFF0F2 0%, #FFFFFF 62%);
  border: 1px solid var(--ex-line); box-shadow: var(--ex-sh-md);
}
.ex-shu-face {
  width: 190px; height: 190px; margin: 0 auto 18px; position: relative;
  border-radius: 50%; display: grid; place-items: center; font-size: 78px;
  background: radial-gradient(circle at 34% 30%, #FFFFFF 0%, #FFE3E8 58%, #FFC7D1 100%);
  box-shadow: 0 14px 40px rgba(255, 36, 66, .22), inset 0 -8px 20px rgba(255, 36, 66, .10);
  transition: transform .3s var(--ex-ease);
  will-change: transform;
}
.ex-shu-face .eye { position: absolute; top: 74px; width: 13px; height: 17px; border-radius: 50%; background: #3A2E33; transition: transform .18s var(--ex-ease); }
.ex-shu-face .eye.l { left: 56px; } .ex-shu-face .eye.r { right: 56px; }
.ex-shu-face .mouth {
  position: absolute; bottom: 52px; left: 50%; margin-left: -16px; width: 32px; height: 16px;
  border-radius: 0 0 32px 32px; background: #E01230; transition: transform .2s var(--ex-ease);
}
.ex-shu-face .blush { position: absolute; top: 96px; width: 26px; height: 15px; border-radius: 50%; background: rgba(255, 36, 66, .26); filter: blur(3px); }
.ex-shu-face .blush.l { left: 30px; } .ex-shu-face .blush.r { right: 30px; }
.ex-shu-face.happy .mouth { transform: scaleY(1.5) translateY(-2px); }
.ex-shu-face.happy .eye { transform: scaleY(.4); }
.ex-shu-name { font-size: 20px; font-weight: 700; }
.ex-shu-tip { margin: 6px 0 0; font-size: 13px; color: var(--ex-ink-3); min-height: 20px; }
.ex-shu-btns { display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; margin-top: 16px; }
.ex-shu-btns button {
  padding: 8px 15px; border-radius: 999px; border: 1px solid var(--ex-line-2);
  background: #fff; font-size: 13px; cursor: pointer; font-family: inherit; color: var(--ex-ink-2);
  transition: all .2s var(--ex-ease);
}
.ex-shu-btns button:hover { border-color: var(--ex-red); color: var(--ex-red); transform: translateY(-2px); }

.ex-shu-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.ex-shu-card {
  padding: 14px; border-radius: var(--ex-r-16); background: var(--ex-surface);
  border: 1px solid var(--ex-line); transition: transform .26s var(--ex-ease), box-shadow .26s;
}
.ex-shu-card:hover { transform: translateY(-4px); box-shadow: var(--ex-sh-md); }
.ex-shu-card i[data-icon] { color: var(--ex-red); }
.ex-shu-card b { display: block; margin: 9px 0 4px; font-size: 14px; }
.ex-shu-card span { font-size: 12.5px; color: var(--ex-ink-3); line-height: 1.5; }

/* 薯薯的一天 */
.ex-day { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-top: 16px; position: relative; }
.ex-day-item {
  padding: 16px; border-radius: var(--ex-r-16); background: var(--ex-surface);
  border: 1px solid var(--ex-line); position: relative;
}
.ex-day-item .tm { font-size: 12px; font-weight: 700; color: var(--ex-red); }
.ex-day-item b { display: block; margin: 5px 0 4px; font-size: 14px; }
.ex-day-item span { font-size: 12.5px; color: var(--ex-ink-3); }

/* 深度解读折叠 */
.ex-deep { display: grid; gap: 12px; }
.ex-acc {
  border-radius: var(--ex-r-16); background: var(--ex-surface);
  border: 1px solid var(--ex-line); overflow: hidden;
  transition: box-shadow .26s, border-color .26s;
}
.ex-acc.on { border-color: var(--ex-red); box-shadow: var(--ex-sh-glow); }
.ex-acc > summary {
  list-style: none; cursor: pointer; padding: 14px 20px; display: flex; align-items: center; gap: 13px;
  font-weight: 600; font-size: 15.5px; min-height: 56px;
}
.ex-acc > summary::-webkit-details-marker { display: none; }
.ex-acc > summary i[data-icon] { color: var(--ex-red); }
.ex-acc > summary .caret { margin-left: auto; transition: transform .3s var(--ex-ease); color: var(--ex-ink-3); }
.ex-acc.on > summary .caret { transform: rotate(180deg); }
.ex-acc .body {
  padding: 0 20px 18px; display: grid; grid-template-columns: 1fr 1fr; gap: 20px; align-items: start;
}
.ex-acc .body ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 8px; }
.ex-acc .body li { font-size: 13.5px; color: var(--ex-ink-2); display: flex; gap: 8px; line-height: 1.6; }
.ex-acc .body li::before { content: '▸'; color: var(--ex-red); flex: none; }

/* ==========================================================================
   区块八 · 插件
   ========================================================================== */
.ex-plug { display: grid; grid-template-columns: 1.05fr .95fr; gap: 34px; align-items: center; }
.ex-browser {
  border-radius: var(--ex-r-24); overflow: hidden; background: var(--ex-surface);
  border: 1px solid var(--ex-line); box-shadow: var(--ex-sh-lg);
}
.ex-browser .bar { display: flex; align-items: center; gap: 7px; padding: 11px 14px; background: #F5F1F2; }
.ex-browser .bar .d { width: 11px; height: 11px; border-radius: 50%; }
.ex-browser .bar .url {
  flex: 1; margin-left: 8px; padding: 5px 12px; border-radius: 999px; background: #fff;
  font-size: 12px; color: var(--ex-ink-3); border: 1px solid var(--ex-line);
}
.ex-browser .view { display: grid; grid-template-columns: 200px 1fr; min-height: 244px; }
.ex-side { padding: 14px; border-right: 1px solid var(--ex-line); background: #FCFAFB; }
.ex-side .ttl { font-size: 12px; font-weight: 700; color: var(--ex-ink-2); margin-bottom: 11px; display: flex; align-items: center; gap: 6px; }
.ex-side .it {
  padding: 9px 11px; border-radius: 10px; font-size: 12.5px; color: var(--ex-ink-2); margin-bottom: 7px;
  background: #fff; border: 1px solid var(--ex-line);
  animation: exSideIn .5s var(--ex-ease-out) both;
}
.ex-side .it.hl { border-color: var(--ex-red); background: var(--ex-red-50); color: var(--ex-red); font-weight: 600; }
@keyframes exSideIn { from { opacity: 0; transform: translateX(-10px); } to { opacity: 1; transform: none; } }
.ex-browser .page { padding: 16px; }
.ex-browser .page .ph-line { height: 11px; border-radius: 6px; background: #F0EBED; margin-bottom: 9px; }
.ex-browser .page .ph-line.w60 { width: 60%; } .ex-browser .page .ph-line.w85 { width: 85%; }
.ex-browser .page .ph-card { height: 92px; border-radius: 12px; background: linear-gradient(135deg, #FFF0F2, #FFE3E8); margin: 12px 0; }
.ex-plug-list { display: grid; gap: 10px; }
.ex-plug-item {
  display: flex; gap: 12px; padding: 11px 14px; border-radius: var(--ex-r-16);
  background: var(--ex-surface); border: 1px solid var(--ex-line);
  transition: transform .24s var(--ex-ease), box-shadow .24s;
}
.ex-plug-item:hover { transform: translateX(4px); box-shadow: var(--ex-sh-sm); }
.ex-plug-item i[data-icon] { color: var(--ex-red); flex: none; }
.ex-plug-item b { display: block; font-size: 14.5px; }
.ex-plug-item span { font-size: 13px; color: var(--ex-ink-3); }

/* ==========================================================================
   区块九 · 技术架构
   ========================================================================== */
.ex-arch { display: grid; gap: 10px; max-width: 860px; margin: 0 auto; }
.ex-layer {
  border-radius: var(--ex-r-16); background: var(--ex-surface); border: 1px solid var(--ex-line);
  overflow: hidden; transition: box-shadow .26s, border-color .26s;
}
.ex-layer.on { border-color: var(--ex-red); box-shadow: var(--ex-sh-glow); }
.ex-layer > summary {
  list-style: none; cursor: pointer; padding: 12px 18px; display: flex; align-items: center; gap: 14px;
  min-height: 56px;
}
.ex-layer > summary::-webkit-details-marker { display: none; }
.ex-layer .lg {
  width: 34px; height: 34px; border-radius: 10px; display: grid; place-items: center; flex: none;
  background: var(--ex-red-50); color: var(--ex-red);
}
.ex-layer .nm { font-weight: 600; font-size: 15px; }
.ex-layer .sm { font-size: 12.5px; color: var(--ex-ink-3); margin-left: 4px; }
.ex-layer .caret { margin-left: auto; color: var(--ex-ink-3); transition: transform .3s var(--ex-ease); }
.ex-layer.on .caret { transform: rotate(180deg); }
.ex-layer .body { padding: 0 20px 20px; }
.ex-tags { display: flex; flex-wrap: wrap; gap: 7px; margin-bottom: 12px; }
.ex-tags span {
  padding: 5px 11px; border-radius: 8px; font-size: 12.5px;
  background: #F6F2F3; color: var(--ex-ink-2); border: 1px solid var(--ex-line);
}
.ex-layer .body p { margin: 0; font-size: 13.5px; color: var(--ex-ink-2); }

/* ==========================================================================
   区块十 · 技术亮点
   ========================================================================== */
.ex-hl { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; }
.ex-hl-card {
  position: relative; padding: 17px 16px; border-radius: var(--ex-r-16); overflow: hidden;
  background: var(--ex-surface); border: 1px solid var(--ex-line); cursor: default;
  transition: transform .26s var(--ex-ease), box-shadow .26s;
}
.ex-hl-card:hover { transform: translateY(-5px); box-shadow: var(--ex-sh-md); }
.ex-hl-card .num {
  position: absolute; right: 14px; top: 10px; font-size: 34px; font-weight: 800;
  color: rgba(255, 36, 66, .09); line-height: 1;
}
.ex-hl-card i[data-icon] { color: var(--ex-red); }
.ex-hl-card b { display: block; margin: 10px 0 6px; font-size: 14.5px; }
.ex-hl-card p { margin: 0; font-size: 12.5px; color: var(--ex-ink-3); line-height: 1.55; }
.ex-hl-card .more {
  max-height: 0; opacity: 0; overflow: hidden; margin-top: 0; font-size: 12.5px; color: var(--ex-ink-2);
  transition: max-height .34s var(--ex-ease), opacity .26s, margin-top .24s;
}
.ex-hl-card:hover .more { max-height: 160px; opacity: 1; margin-top: 10px; }

/* ==========================================================================
   区块十一 · 数据
   ========================================================================== */
.ex-kpi { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 26px; }
.ex-kpi-item {
  padding: 16px; border-radius: var(--ex-r-16); background: var(--ex-surface);
  border: 1px solid var(--ex-line); text-align: center;
  transition: transform .24s var(--ex-ease), box-shadow .24s;
}
.ex-kpi-item:hover { transform: translateY(-4px); box-shadow: var(--ex-sh-md); }
.ex-kpi-item b { display: block; font-size: 30px; font-weight: 800; color: var(--ex-red); line-height: 1.15; }
.ex-kpi-item span { font-size: 12.5px; color: var(--ex-ink-3); }
.ex-chart-box {
  border-radius: var(--ex-r-24); background: var(--ex-surface); border: 1px solid var(--ex-line);
  padding: 20px; box-shadow: var(--ex-sh-sm);
}
.ex-chart { width: 100%; height: 230px; }
.ex-learn { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 20px; }
.ex-learn-item {
  padding: 18px; border-radius: var(--ex-r-16); background: var(--ex-red-50); border: 1px solid var(--ex-red-100);
}
.ex-learn-item b { display: block; font-size: 22px; color: var(--ex-red); }
.ex-learn-item span { font-size: 13px; color: var(--ex-ink-2); }

/* ==========================================================================
   区块十二 · 用户评价 Marquee
   ========================================================================== */
.ex-marquee { position: relative; overflow: hidden; padding: 4px 0; }
.ex-marquee::before, .ex-marquee::after {
  content: ''; position: absolute; top: 0; bottom: 0; width: 80px; z-index: 2; pointer-events: none;
}
.ex-marquee::before { left: 0; background: linear-gradient(90deg, var(--ex-bg), transparent); }
.ex-marquee::after { right: 0; background: linear-gradient(-90deg, var(--ex-bg), transparent); }
.ex-mq-track { display: flex; gap: 14px; width: max-content; animation: exMq 34s linear infinite; }
.ex-marquee:hover .ex-mq-track { animation-play-state: paused; }
@keyframes exMq { from { transform: translate3d(0, 0, 0); } to { transform: translate3d(-50%, 0, 0); } }
.ex-voice {
  width: 340px; flex: none; padding: 20px; border-radius: var(--ex-r-16);
  background: var(--ex-surface); border: 1px solid var(--ex-line); box-shadow: var(--ex-sh-sm);
}
.ex-voice .top { display: flex; align-items: center; gap: 11px; margin-bottom: 12px; }
.ex-voice .av {
  width: 40px; height: 40px; border-radius: 50%; display: grid; place-items: center;
  font-size: 16px; font-weight: 700; color: #fff; flex: none;
  background: linear-gradient(135deg, #FF6B7E, #E02039);
}
.ex-voice .nm { font-size: 14px; font-weight: 600; }
.ex-voice .tr { font-size: 12px; color: var(--ex-ink-3); }
.ex-voice .st { margin-left: auto; color: #8A5A00; font-size: 13px; letter-spacing: 1px; }
.ex-voice p { margin: 0; font-size: 13.5px; color: var(--ex-ink-2); line-height: 1.7; }

/* ==========================================================================
   区块十三 · 竞品对比
   ========================================================================== */
.ex-table-wrap { overflow-x: auto; border-radius: var(--ex-r-24); border: 1px solid var(--ex-line); background: var(--ex-surface); box-shadow: var(--ex-sh-sm);  position:relative; -webkit-overflow-scrolling:touch; }
.ex-table { width: 100%; border-collapse: collapse; min-width: 720px; }
.ex-table th, .ex-table td { padding: 14px 16px; text-align: left; font-size: 13.5px; border-bottom: 1px solid var(--ex-line); }
.ex-table thead th { background: #FCFAFB; font-weight: 600; font-size: 13px; color: var(--ex-ink-2); }
.ex-table thead th.us { background: var(--ex-red); color: #fff; }
.ex-table tbody tr { transition: background .2s; }
.ex-table tbody tr:hover { background: #FFFAFB; }
.ex-table td.us { background: rgba(255, 36, 66, .045); font-weight: 600; color: var(--ex-ink); }
.ex-table tbody tr:hover td.us { background: rgba(255, 36, 66, .09); }
.ex-table td.dim { color: var(--ex-ink-3); }
.ex-table .yes { color: var(--success-text, #137A52); font-weight: 700; }
.ex-table .no { color: var(--text-muted-soft, #6E6869); }

/* ==========================================================================
   区块十四 · 路线图
   ========================================================================== */
.ex-road { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.ex-road-col {
  padding: 20px; border-radius: var(--ex-r-24); background: var(--ex-surface);
  border: 1px solid var(--ex-line); box-shadow: var(--ex-sh-sm);
  transition: transform .26s var(--ex-ease), box-shadow .26s;
}
.ex-road-col:hover { transform: translateY(-4px); box-shadow: var(--ex-sh-md); }
.ex-road-col .ph {
  display: inline-block; padding: 5px 13px; border-radius: 999px; font-size: 12px; font-weight: 700;
  background: var(--ex-red-50); color: var(--ex-red);
}
.ex-road-col h4 { margin: 12px 0 4px; font-size: 17px; }
.ex-road-col .sub { margin: 0 0 16px; font-size: 12.5px; color: var(--ex-ink-3); }
.ex-road-col ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 10px; }
.ex-road-col li { position: relative; padding-left: 18px; font-size: 13.5px; color: var(--ex-ink-2); }
.ex-road-col li::before {
  content: ''; position: absolute; left: 0; top: 7px; width: 8px; height: 8px; border-radius: 50%;
  background: var(--ex-red); box-shadow: 0 0 0 3px var(--ex-red-50);
}
.ex-road-col li b { color: var(--ex-ink); }

/* ==========================================================================
   区块十五 · CTA
   ========================================================================== */
.ex-cta {
  position: relative; overflow: hidden; text-align: center; color: #fff;
  padding: 74px 0; background: linear-gradient(140deg, #E02039 0%, #E01230 62%, #B80D26 100%);
}
.ex-cta::before, .ex-cta::after {
  content: ''; position: absolute; border-radius: 50%; filter: blur(60px); pointer-events: none;
}
.ex-cta::before { width: 420px; height: 420px; left: -80px; top: -120px; background: rgba(255, 255, 255, .22); animation: exAurora1 14s ease-in-out infinite alternate; }
.ex-cta::after { width: 360px; height: 360px; right: -60px; bottom: -110px; background: rgba(255, 180, 190, .30); animation: exAurora2 18s ease-in-out infinite alternate; }
.ex-cta .ex-wrap { position: relative; z-index: 1; }
.ex-cta h2 { margin: 0 0 12px; font-size: 38px; font-weight: 800; }
.ex-cta p { margin: 0 0 30px; font-size: 17px; color: rgba(255, 255, 255, .85); }
.ex-cta-btns { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.ex-cta-back { display: inline-block; margin-top: 26px; font-size: 13.5px; color: rgba(255, 255, 255, .78); border-bottom: 1px solid rgba(255, 255, 255, .35); padding-bottom: 2px; }
.ex-cta-back:hover { color: #fff; border-color: #fff; }

/* ==========================================================================
   Footer
   ========================================================================== */
.ex-foot { padding: 26px 0; background: var(--ex-dark); color: rgba(255, 255, 255, .6); font-size: 13px; }
.ex-foot .ex-wrap { display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap; align-items: center; }
.ex-foot a:hover { color: #fff; }

/* ==========================================================================
   侧边目录 / 回到顶部
   ========================================================================== */
.ex-toc {
  position: fixed; right: 20px; top: 50%; transform: translateY(-50%);
  z-index: 70; display: grid; gap: 3px; padding: 10px 8px; border-radius: 999px;
  background: rgba(255, 255, 255, .9); border: 1px solid var(--ex-line);
  box-shadow: var(--ex-sh-sm); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
}
.ex-toc a {
  position: relative; width: 30px; height: 26px; display: grid; place-items: center;
  border-radius: 8px; font-size: 12px; font-weight: 700; color: var(--ex-ink-3);
  transition: color .2s, background .2s;
}
.ex-toc a:hover { color: var(--ex-red); background: var(--ex-red-50); }
.ex-toc a.on { color: #fff; background: var(--ex-red); }
.ex-toc a .lb {
  position: absolute; right: 36px; top: 50%; transform: translateY(-50%) translateX(6px);
  padding: 4px 10px; border-radius: 8px; background: var(--ex-ink); color: #fff;
  font-size: 12px; font-weight: 500; white-space: nowrap; opacity: 0; pointer-events: none;
  transition: opacity .2s var(--ex-ease), transform .2s var(--ex-ease);
}
.ex-toc a:hover .lb { opacity: 1; transform: translateY(-50%) translateX(0); }

.ex-top {
  position: fixed; right: 20px; bottom: 26px; z-index: 70;
  width: 44px; height: 44px; border-radius: 50%; display: grid; place-items: center;
  background: var(--ex-red); color: #fff; border: 0; cursor: pointer;
  box-shadow: 0 8px 22px rgba(255, 36, 66, .36);
  opacity: 0; transform: translateY(14px) scale(.9); pointer-events: none;
  transition: opacity .3s var(--ex-ease), transform .3s var(--ex-ease);
}
.ex-top.show { opacity: 1; transform: none; pointer-events: auto; }
.ex-top:hover { transform: translateY(-3px); }

/* ==========================================================================
   模态弹窗
   ========================================================================== */
.ex-mask {
  position: fixed; inset: 0; z-index: 120; display: grid; place-items: center; padding: 22px;
  background: rgba(20, 16, 19, .55); -webkit-backdrop-filter: blur(4px); backdrop-filter: blur(4px);
  opacity: 0; pointer-events: none; transition: opacity .28s var(--ex-ease);
}
.ex-mask.show { opacity: 1; pointer-events: auto; }
.ex-modal {
  width: 100%; max-width: 620px; max-height: 84vh; overflow-y: auto;
  border-radius: var(--ex-r-24); background: #fff; padding: 28px;
  transform: translateY(16px) scale(.98); transition: transform .32s var(--ex-ease-out);
}
.ex-mask.show .ex-modal { transform: none; }
.ex-modal .hd { display: flex; align-items: center; gap: 13px; margin-bottom: 6px; }
.ex-modal .hd .ico { width: 42px; height: 42px; border-radius: 12px; display: grid; place-items: center; background: var(--ex-red-50); color: var(--ex-red); }
.ex-modal h3 { margin: 0; font-size: 20px; }
.ex-modal .tagline { margin: 0 0 18px; color: var(--ex-ink-2); font-size: 14px; }
.ex-modal h5 { margin: 18px 0 8px; font-size: 14px; color: var(--ex-ink); }
.ex-modal ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 7px; }
.ex-modal li { font-size: 13.5px; color: var(--ex-ink-2); display: flex; gap: 8px; line-height: 1.6; }
.ex-modal li::before { content: '▸'; color: var(--ex-red); flex: none; }
.ex-modal .close {
  position: absolute; top: 16px; right: 18px; width: 32px; height: 32px; border-radius: 50%;
  border: 0; background: #F5F1F2; color: var(--ex-ink-2); cursor: pointer; font-size: 16px;
}
.ex-modal-wrap { position: relative; }

/* ==========================================================================
   滚动进场
   ========================================================================== */
.ex-reveal { opacity: 0; transform: translate3d(0, 26px, 0); }
.ex-reveal.in {
  opacity: 1; transform: none;
  transition: opacity .7s var(--ex-ease-out), transform .7s var(--ex-ease-out);
  transition-delay: var(--d, 0ms);
}

/* ==========================================================================
   响应式
   ========================================================================== */
@media (max-width: 1180px) {
  .ex-hl { grid-template-columns: repeat(4, 1fr); }
  .ex-shu-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 1024px) {
  .ex-toc { display: none; }
  .ex-pa { grid-template-columns: 1fr; gap: 18px; }
  .ex-arrow-mid { padding-top: 0; transform: rotate(90deg); }
  .ex-bento { grid-template-columns: repeat(3, 1fr); }
  .ex-mod.feature { grid-column: span 3; }
  .ex-panel.on { grid-template-columns: 1fr; gap: 22px; }
  .ex-shushu, .ex-plug { grid-template-columns: 1fr; gap: 24px; }
  .ex-acc .body { grid-template-columns: 1fr; }
  .ex-hl { grid-template-columns: repeat(3, 1fr); }
  .ex-kpi { grid-template-columns: repeat(2, 1fr); }
  .ex-road { grid-template-columns: 1fr; }
  .ex-pano-detail { grid-template-columns: 1fr; }
  .ex-learn { grid-template-columns: 1fr; }
  .ex-head h2 { font-size: 28px; }
  .ex-hero h1 { font-size: 42px; }
}
@media (max-width: 640px) {
  .ex-sec { padding: 38px 0; }
  .ex-wrap { padding: 0 18px; }
  .ex-hero { min-height: auto; padding: 100px 0 70px; }
  .ex-hero h1 { font-size: 32px; }
  .ex-hero .ex-sub { font-size: 15px; }
  .ex-stats { grid-template-columns: repeat(2, 1fr); }
  .ex-stat b { font-size: 26px; }
  .ex-bento { grid-template-columns: repeat(2, 1fr); }
  .ex-mod.feature { grid-column: span 2; }
  .ex-mod { padding: 16px; }
  .ex-hl { grid-template-columns: repeat(2, 1fr); }
  .ex-shu-grid { grid-template-columns: repeat(2, 1fr); }
  .ex-day { grid-template-columns: 1fr; }
  .ex-voice { width: 280px; }
  .ex-nav-links { display: none; }
  .ex-head h2 { font-size: 24px; }
  .ex-cta h2 { font-size: 27px; }
  .ex-browser .view { grid-template-columns: 1fr; }
  .ex-side { border-right: 0; border-bottom: 1px solid var(--ex-line); }
  .ex-filter button, .ex-tabs button { padding: 8px 14px; font-size: 13px; }
}

/* ==========================================================================
   触屏回退（2026-10-17 P1-I：移动端禁 hover-only）
   没有 hover 的设备上，「只有 :hover 才显形」的信息等于永久不可见。
   本文件里真正承载信息的只有两处，其余 :hover 都是位移 / 阴影 / 配色这类装饰态，
   不需要回退（也不会损失任何信息）。
   —— 注：.ex-pain-item 虽也是 hover 展开文案，但 explore.js:127 有 click → toggle .on
      的同等入口，触屏点一下即可展开，故不在此列。
   ========================================================================== */
@media (hover: none) {
  /* 区块十 · 高光卡补充文案：原本只有 hover 才展开 */
  .ex-hl-card .more { max-height: 160px; opacity: 1; margin-top: 10px; }
  /* 侧边目录的浮标文字（≤1024 本就隐藏，这里兜 ≥1024 的触屏场景） */
  .ex-toc a .lb { opacity: 1; transform: translateY(-50%) translateX(0); }
}

/* ==========================================================================
   尊重 prefers-reduced-motion
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  .ex-reveal { opacity: 1 !important; transform: none !important; }
  .ex-mq-track { animation: none !important; }
  .ex-ph::before { display: none; }
}

/* ==========================================================================
   真实媒体（截图 / GIF 演示）—— 2026-10-04，第二版（修复零高度塌陷）
   第一版用绝对定位铺满 .ex-shot，但 .ex-shot 原本靠 .ex-ph 撑高，替换后高度
   变 0；Chrome 对「零尺寸 + loading=lazy」的图片直接不发起请求，全站图挂。
   第二版：img 自己带 aspect-ratio 占位（宽度 100%、高度按比例预留），
   天然撑开容器，加载前后零跳动（CLS=0），懒加载也正常触发。
   ========================================================================== */
.ex-shot { position: relative; }
.ex-media {
  width: 100%; height: auto; display: block;
  aspect-ratio: 1280 / 760; object-fit: cover; object-position: top center;
  border-radius: var(--ex-r-24, 16px); background: #FFF6F7;
}
.ex-media--png { aspect-ratio: 1280 / 800; }
.ex-shot--flow {
  margin-top: 16px; overflow: hidden;
  border-radius: var(--ex-r-24, 16px);
  border: 1px solid var(--ex-line-2, #F0E4E6); background: #FFF6F7;
}
@media (max-width: 768px) {
  .ex-shot--flow { margin-top: 12px; }
}

/* 2026-10-18：表格在窄屏可横向滑动，但原来没有任何提示，用户不知道能滑。
   用右侧 sticky 渐隐遮罩 + 一行说明文字给出 affordance。
   不用 background:fixed —— 在小滚动容器上各浏览器表现不一致。 */
.ex-table-wrap::before {
  content: '\2194  左右滑动查看完整表格';
  display: none;
  font-size: 12px;
  color: var(--ink3, #9ca3af);
  padding: 0 0 6px;
}
@media (max-width: 820px) {
  .ex-table-wrap::before { display: block; }
  .ex-table-wrap::after {
    content: '';
    position: sticky;
    right: 0;
    display: block;
    width: 28px;
    height: 0;
    margin-top: -28px;
    margin-left: auto;
    pointer-events: none;
    background: linear-gradient(to right, rgba(255,255,255,0), var(--card, #fff));
  }
}

/* ==========================================================================
   [qw4-20261018] 移动端触控区补齐（B3 UX 快赢 #5）
   .ex-nav-links a 桌面端保持 36px 视觉设计，仅移动端提到 44px 触控标准。
   注意：a 是 flex item 但需 inline-flex + align-items:center 才能让文字垂直居中，
   否则 min-height 生效了文字仍贴顶。
   ========================================================================== */
@media (max-width: 768px) {
  .ex-nav-links a {
    display: inline-flex;
    align-items: center;
    min-height: 44px;
    padding: 0 12px;
  }
}