/* ============================================================
   tool-template.css — 工具页统一模板（ima 风格）
   主色: #6aebab
   ============================================================ */

/* ---------- 全局变量 ---------- */
.ima-page { isolation:isolate; 
  --primary: #6aebab;
  --primary-dark: #3fae7d;
  --primary-deep: #238f63;
  --primary-light: #e6f7ee;
  --primary-50: #f1faf5;
  --ink: #16251f;
  --ink-2: #4a5b54;
  --ink-3: #8aa096;
  --bg: #f8fbf9;
  --card: #ffffff;
  --line: #e2ede7;
  --grad: linear-gradient(135deg, #6aebab 0%, #3ecf8e 100%);
  background: var(--bg);
}

/* ---------- 深色沉浸作用域（ima 主视觉：暗底 + 白色产品界面浮起） ---------- */
.ima-dark {
  --bg: #0a0f0d;
  --card: rgba(255,255,255,.045);
  --line: rgba(255,255,255,.11);
  --ink: #f0f6f2;
  --ink-2: rgba(240,246,242,.68);
  --ink-3: rgba(240,246,242,.42);
  --primary-light: rgba(106,235,171,.13);
  --primary-50: rgba(106,235,171,.08);
  background: var(--bg);
  color: var(--ink);
}
.ima-dark .ima-btn { background: rgba(0,0,0,.86); color: #fff; box-shadow: 0 10px 30px rgba(0,0,0,.4); }
.ima-dark .ima-btn:hover { background: #000; color: #fff; box-shadow: 0 14px 34px rgba(0,0,0,.5); }
.ima-dark .ima-btn.ghost { background: rgba(255,255,255,.07); color: var(--ink); border: 1px solid rgba(255,255,255,.2); box-shadow: none; }
.ima-dark .ima-btn.ghost:hover { border-color: var(--primary); color: var(--primary); box-shadow: 0 4px 18px rgba(106,235,171,.2); }
.ima-dark .ima-pill { background: rgba(106,235,171,.12); color: var(--primary); border-color: rgba(106,235,171,.35); }
.ima-dark .ima-pill::before { background: var(--primary); box-shadow: 0 0 0 3px rgba(106,235,171,.25); }
.ima-dark h1, .ima-dark h2, .ima-dark h3 { color: var(--ink); }

/* 深色下的卡片统一样式（覆盖浅色默认） */
.ima-dark .ima-feat,
.ima-dark .ima-case,
.ima-dark .ima-format,
.ima-dark .ima-guide,
.ima-dark .ima-tpl,
.ima-dark .ima-scene,
.ima-dark .ima-step,
.ima-dark .faq-item {
  background: var(--card);
  border: 1px solid var(--line);
}
.ima-dark .ima-feat:hover,
.ima-dark .ima-case:hover,
.ima-dark .ima-format:hover,
.ima-dark .ima-guide:hover,
.ima-dark .ima-tpl:hover,
.ima-dark .ima-scene:hover,
.ima-dark .ima-step:hover,
.ima-dark .faq-item:hover {
  border-color: rgba(106,235,171,.55);
  box-shadow: 0 20px 44px rgba(0,0,0,.35);
}
.ima-dark .ima-feat .ft-ic,
.ima-dark .ima-scene .sc-ic,
.ima-dark .ima-feature .ft-pts .pt-ic,
.ima-dark .ima-guide .gd-num,
.ima-dark .faq-q .faq-arrow,
.ima-dark .ima-format .fmt-ic {
  background: rgba(106,235,171,.13);
  color: var(--primary);
}
.ima-dark .ima-feat h3,
.ima-dark .ima-case .cs-name,
.ima-dark .ima-format b,
.ima-dark .ima-guide h3,
.ima-dark .ima-tpl h3,
.ima-dark .ima-scene h3,
.ima-dark .ima-step h3,
.ima-dark .faq-q { color: var(--ink); }
.ima-dark .ima-feat p,
.ima-dark .ima-case p,
.ima-dark .ima-format span,
.ima-dark .ima-guide p,
.ima-dark .ima-tpl p,
.ima-dark .ima-scene p,
.ima-dark .ima-step p,
.ima-dark .faq-a,
.ima-dark .ima-case .cs-role,
.ima-dark .ima-tpl .tpl-meta { color: var(--ink-2); }
.ima-dark .ima-feat .ft-tag,
.ima-dark .ima-tpl .tpl-tag { background: rgba(106,235,171,.13); color: var(--primary); border: 1px solid rgba(106,235,171,.3); }

/* 深色下的大功能区块 */
.ima-dark .ima-feature .ft-desc,
.ima-dark .ima-tab-panel .tp-desc,
.ima-dark .ima-tab-panel .tp-list li { color: var(--ink-2); }
.ima-dark .ima-feature .ft-sub { color: var(--primary); }
.ima-dark .ima-tab-panel { background: rgba(255,255,255,.55); border-color: var(--line); box-shadow: 0 24px 60px rgba(0,0,0,.35); }
.ima-dark .ima-tab-btn { background: rgba(255,255,255,.05); color: var(--ink-2); border-color: var(--line); }
.ima-dark .ima-tab-btn:hover { border-color: var(--primary); color: var(--primary); }
.ima-dark .ima-tab-btn.active { background: rgba(106,235,171,.15); border-color: var(--primary); color: var(--primary); box-shadow: 0 4px 18px rgba(106,235,171,.25); }

/* 深色下的统计条 */
.ima-dark .ima-stats-inner {
  background: rgba(255,255,255,.04);
  border: 1px solid var(--line);
}
.ima-dark .ima-stat + .ima-stat::before { background: rgba(255,255,255,.12); }
.ima-dark .ima-stat span { color: var(--ink-2); }

/* 深色下的 CTA 外壳（保留绿色渐变发光） */
.ima-dark .ima-cta-inner {
  background:
    radial-gradient(700px 300px at 85% 20%, rgba(255,255,255,.2), transparent 60%),
    radial-gradient(600px 300px at 10% 90%, rgba(106,235,171,.3), transparent 55%),
    linear-gradient(135deg, #1c2f26 0%, #10201a 100%);
  border: 1px solid rgba(106,235,171,.25);
}
.ima-dark .ima-cta-inner .ima-btn { background: #fff; color: #10201a; box-shadow: 0 10px 30px rgba(0,0,0,.35); }
.ima-dark .ima-cta-inner .ima-btn:hover { background: var(--primary); color: #0a0f0d; }
.ima-dark .ima-cta-inner .ima-btn.ghost-cta { background: rgba(255,255,255,.12); color: #fff; border-color: rgba(255,255,255,.35); box-shadow: none; }
.ima-dark .ima-cta-inner .ima-btn.ghost-cta:hover { background: rgba(255,255,255,.22); color: #fff; }

/* 白色产品界面 mock（浮在深色上，ima 风格：白色窗口） */
.ima-dark .ft-mock,
.ima-dark .ima-shot,
.ima-dark .tp-shot {
  box-shadow: 0 30px 80px rgba(0,0,0,.55), 0 0 0 1px rgba(255,255,255,.14);
  transform: perspective(1400px) rotateY(-3deg) rotateX(1deg);
}
.ima-dark .ima-shot:hover,
.ima-dark .tp-shot:hover { transform: perspective(1400px) rotateY(0) rotateX(0); }
.ima-dark .ft-mock { background: #fff; border-color: rgba(255,255,255,.14); }

/* 工作台外壳：深色衬托 + 白色产品窗口（真实工具保持浅色） */
.ima-wb-shell {
  background:
    radial-gradient(900px 400px at 50% -10%, rgba(106,235,171,.14), transparent 60%),
    linear-gradient(180deg, #0d1411 0%, #0a0f0d 100%);
  border-top: 1px solid rgba(255,255,255,.07);
  border-bottom: 1px solid rgba(255,255,255,.07);
  padding: 72px 24px 88px;
}

/* 滚动渐入（ima antFadeIn 风格：淡入 + 上浮） */
.ima-reveal {
  opacity: 0; transform: translateY(26px);
  transition: opacity .7s ease, transform .7s ease;
}
.ima-reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .ima-reveal { opacity: 1; transform: none; transition: none; }
}

/* 工作台上方"实际产品"标识 */
.ima-wb-head {
  max-width: 1280px; margin: 0 auto 18px; padding: 0 4px;
  display: flex; align-items: center; gap: 10px;
  font-size: 13px; font-weight: 600; color: rgba(255,255,255,.65);
  letter-spacing: .02em;
}
.ima-wb-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--primary); box-shadow: 0 0 0 4px rgba(106,235,171,.18);
}
.ima-wb-shell .ima-workbench { margin: 0 auto; }
.ima-wb-shell .tw-wrap {
  --primary: #6aebab;
  --primary-dark: #3fae7d;
  --primary-deep: #238f63;
  --primary-light: #e6f7ee;
  --primary-50: #f1faf5;
  --ink: #16251f;
  --ink-2: #4a5b54;
  --ink-3: #8aa096;
  --bg: #ffffff;
  --card: #ffffff;
  --line: #e2ede7;
  background: #fff;
  border-radius: 20px;
  box-shadow: 0 30px 70px rgba(0,0,0,.5), 0 0 0 1px rgba(255,255,255,.1);
  overflow: hidden;
}
.ima-wb-shell .tw-wrap .tw-app { background: #fff; }


/* ---------- Hero：深色沉浸（ima 风格：暗底 + 白色产品 mock 浮起） ---------- */
.ima-hero {
  /* 半透明：让 .bg-fluid 光斑透出，保留轻微灰绿层次 */
  background: transparent;
  border-bottom: 1px solid #e0e5e2;
  overflow: hidden;
  /* hero 高度适中 + 内容垂直居中（顶部间距自然缩小） */
  min-height: 600px;
  display: flex;
  align-items: center;
}
.ima-hero-inner {
  max-width: 1280px; margin: 0 auto; padding: 40px 24px 40px;
  display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center;
  width: 100%;
}

/* 左：文案 */
.ima-pill {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--primary-light); color: var(--primary-deep);
  font-size: 13px; font-weight: 600; padding: 6px 14px; border-radius: 999px;
  margin-bottom: 20px; border: 1px solid rgba(106,235,171,.4);
}
.ima-pill::before {
  content: ''; width: 6px; height: 6px; border-radius: 50%;
  background: var(--primary); box-shadow: 0 0 0 3px rgba(106,235,171,.3);
}
.ima-hero h1 {
  font-size: clamp(34px, 4.2vw, 52px); line-height: 1.15; font-weight: 800;
  letter-spacing: -0.02em; color: var(--ink); margin: 0 0 18px;
}
.ima-hero h1 .grad {
  background: var(--grad); -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.ima-hero .ima-lead {
  font-size: 16.5px; line-height: 1.75; color: var(--ink-2); margin: 0 0 30px; max-width: 540px;
}
.ima-hero .ima-lead b { color: var(--ink); font-weight: 700; }
.ima-hero-actions { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.ima-btn {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--grad); color: #fff; font-size: 15px; font-weight: 700;
  padding: 13px 30px; border-radius: 12px; text-decoration: none;
  box-shadow: 0 8px 24px rgba(63,174,125,.35); transition: all .2s; border: none; cursor: pointer;
}
.ima-btn:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(63,174,125,.45); color: #fff; }
.ima-btn svg { width: 16px; height: 16px; }
.ima-btn.ghost {
  background: #fff; color: var(--ink); border: 1px solid var(--line);
  box-shadow: 0 2px 8px rgba(22,37,31,.06);
}
.ima-btn.ghost:hover { border-color: var(--primary); color: var(--primary-deep); box-shadow: 0 4px 14px rgba(106,235,171,.25); }
.ima-hero-note { font-size: 13px; color: var(--ink-3); }

/* 右：产品示意（CSS 绘制的播放器窗口 mock） */
.ima-visual { position: relative; }
.ima-shot {
  background: #0f1512; border-radius: 18px; overflow: hidden;
  box-shadow: none;
  transform: perspective(1400px) rotateY(-4deg) rotateX(1deg);
  transition: transform .3s;
}
.ima-shot:hover { transform: perspective(1400px) rotateY(0) rotateX(0); }
.ima-shot-top {
  display: flex; align-items: center; gap: 6px; padding: 12px 16px;
  background: #161c19; border-bottom: 1px solid rgba(255,255,255,.06);
}
.ima-shot-top i { width: 10px; height: 10px; border-radius: 50%; display: block; }
.ima-shot-top i:nth-child(1) { background: #ff5f57; }
.ima-shot-top i:nth-child(2) { background: #febc2e; }
.ima-shot-top i:nth-child(3) { background: #28c840; }
.ima-shot-top span {
  margin-left: 10px; font-size: 11.5px; color: rgba(255,255,255,.5);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}
.ima-shot-stage {
  position: relative; aspect-ratio: 16/9; display: flex; align-items: center; justify-content: center;
  background:
    radial-gradient(400px 220px at 30% 30%, rgba(106,235,171,.22), transparent 65%),
    radial-gradient(380px 220px at 75% 75%, rgba(63,206,142,.18), transparent 60%),
    linear-gradient(160deg, #1a241f 0%, #0f1512 100%);
}
.ima-shot-stage svg { width: 64px; height: 64px; opacity: .9; filter: drop-shadow(0 4px 16px rgba(106,235,171,.4)); }
.ima-shot-stage .ima-wave {
  position: absolute; left: 16px; right: 16px; bottom: 0; height: 48%;
  display: flex; align-items: flex-end; gap: 3px; opacity: .5; padding: 0 8px;
}
.ima-shot-stage .ima-wave i { flex: 1; background: linear-gradient(180deg, rgba(106,235,171,.5), rgba(63,206,142,.15)); border-radius: 2px 2px 0 0; }
.ima-shot-bar { padding: 14px 18px 18px; background: #121815; }
.ima-shot-timeline { position: relative; height: 34px; }
.ima-shot-timeline .tl-track { position: absolute; top: 50%; left: 0; right: 0; height: 4px; transform: translateY(-50%); border-radius: 2px; background: rgba(255,255,255,.14); }
.ima-shot-timeline .tl-fill { position: absolute; top: 50%; left: 8%; width: 44%; height: 4px; transform: translateY(-50%); border-radius: 2px; background: var(--grad); }
.ima-shot-timeline .tl-mark {
  position: absolute; top: 50%; transform: translate(-50%, -50%);
  width: 13px; height: 13px; border-radius: 50%; background: #fff;
  border: 3px solid var(--primary); box-shadow: 0 2px 8px rgba(0,0,0,.4);
}
.ima-shot-timeline .tl-mark.s { left: 8%; }
.ima-shot-timeline .tl-mark.e { left: 52%; }
.ima-shot-timeline .tl-tag {
  position: absolute; top: 0; font-size: 10px; font-weight: 700; color: #fff;
  background: rgba(63,174,125,.85); padding: 2px 8px; border-radius: 999px;
}
.ima-shot-timeline .tl-tag.s { left: 8%; transform: translateX(-50%); }
.ima-shot-timeline .tl-tag.e { left: 52%; transform: translateX(-50%); }
.ima-shot-time {
  display: flex; justify-content: space-between; margin-top: 8px;
  font-size: 11.5px; color: rgba(255,255,255,.55); font-variant-numeric: tabular-nums;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}
.ima-shot-float {
  position: absolute; right: -18px; top: 34%; background: #fff; border-radius: 12px;
  padding: 10px 16px; box-shadow: none;
  font-size: 12.5px; color: var(--ink-2); display: flex; align-items: center; gap: 8px;
  animation: imaFloat 3.2s ease-in-out infinite;
}
.ima-shot-float b { color: var(--primary-deep); font-weight: 800; font-variant-numeric: tabular-nums; }
.ima-shot-float .ok {
  width: 22px; height: 22px; border-radius: 50%; background: var(--primary-light);
  display: flex; align-items: center; justify-content: center; color: var(--primary-deep); flex-shrink: 0;
}
.ima-shot-float .ok svg { width: 12px; height: 12px; }
@keyframes imaFloat { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }

/* ---------- 工作台容器（由 .ima-wb-shell 包裹，白色产品窗口） ---------- */
.ima-workbench {
  max-width: 1280px; margin: 0 auto; padding: 0 24px; position: relative; z-index: 5;
}
.ima-workbench .tw-wrap { margin: 0; }

/* ---------- 内容区（ima 风格） ---------- */
.ima-section {
  max-width: 1280px; margin: 0 auto; padding: 96px 24px 0; text-align: center;
}
.ima-section .ima-pill { margin-bottom: 16px; }
.ima-section h2 {
  font-size: clamp(26px, 3vw, 36px); font-weight: 800; letter-spacing: -0.01em;
  color: var(--ink); margin: 0 0 14px; line-height: 1.25;
}
.ima-section .ima-lead { font-size: 16px; color: var(--ink-2); line-height: 1.7; margin: 0 auto 48px; max-width: 620px; }

/* 场景卡片 */
.ima-scenes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; text-align: left; }
.ima-scene {
  background: rgba(255,255,255,.55); border: 1px solid var(--line); border-radius: 18px;
  padding: 32px 28px; transition: all .25s; position: relative; overflow: hidden;
}
.ima-scene::before {
  content: ''; position: absolute; inset: 0 0 auto 0; height: 3px;
  background: var(--grad); opacity: 0; transition: opacity .25s;
}
.ima-scene:hover { transform: translateY(-4px); box-shadow: none; border-color: rgba(106,235,171,.5); }
.ima-scene:hover::before { opacity: 1; }
.ima-scene .sc-ic {
  width: 52px; height: 52px; border-radius: 14px; background: var(--primary-light);
  display: flex; align-items: center; justify-content: center; margin-bottom: 18px; color: var(--primary-deep);
}
.ima-scene .sc-ic svg { width: 24px; height: 24px; }
.ima-scene h3 { font-size: 17px; font-weight: 700; color: var(--ink); margin: 0 0 8px; }
.ima-scene p { font-size: 13.5px; color: var(--ink-2); line-height: 1.7; margin: 0; }

/* 步骤（ima 风格：编号大字） */
.ima-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; text-align: left; }
.ima-step {
  background: rgba(255,255,255,.55); border: 1px solid var(--line); border-radius: 18px;
  padding: 30px 28px; position: relative; transition: all .25s;
}
.ima-step:hover { box-shadow: none; }
.ima-step .st-num {
  font-size: 40px; font-weight: 800; letter-spacing: -0.03em; line-height: 1;
  background: var(--grad); -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent; margin-bottom: 16px; display: block;
}
.ima-step h3 { font-size: 16.5px; font-weight: 700; color: var(--ink); margin: 0 0 8px; }
.ima-step p { font-size: 13.5px; color: var(--ink-2); line-height: 1.7; margin: 0; }

/* ---------- 特性卡 ×3（ima 能力点风格，错落排布非等宽网格） ---------- */
.ima-feats {
  max-width: 1280px; margin: 0 auto; padding: 72px 24px 0;
  display: flex; gap: 24px; align-items: flex-start; justify-content: center;
}
.ima-feat {
  flex: 1; max-width: 400px;
  background: rgba(255,255,255,.55); border: 1px solid var(--line); border-radius: 18px;
  padding: 32px 28px; transition: all .25s; position: relative; overflow: hidden;
}
.ima-feat:nth-child(2) { margin-top: 28px; }
.ima-feat::before {
  content: ''; position: absolute; inset: 0 0 auto 0; height: 3px;
  background: var(--grad); opacity: 0; transition: opacity .25s;
}
.ima-feat:hover { transform: translateY(-4px); box-shadow: none; border-color: rgba(106,235,171,.5); }
.ima-feat:hover::before { opacity: 1; }
.ima-feat .ft-ic {
  width: 50px; height: 50px; border-radius: 14px; background: var(--primary-light);
  display: flex; align-items: center; justify-content: center; margin-bottom: 16px; color: var(--primary-deep);
}
.ima-feat .ft-ic svg { width: 24px; height: 24px; }
.ima-feat h3 { font-size: 17px; font-weight: 700; color: var(--ink); margin: 0 0 8px; }
.ima-feat p { font-size: 13.5px; color: var(--ink-2); line-height: 1.7; margin: 0 0 14px; }
.ima-feat .ft-tag {
  display: inline-block; font-size: 11.5px; font-weight: 600; color: var(--primary-deep);
  background: var(--primary-light); border: 1px solid rgba(106,235,171,.4);
  padding: 3px 10px; border-radius: 999px;
}

/* 特性卡错落入场（stagger） */
.ima-stagger { transition-delay: calc(var(--i, 0) * 120ms); }
.ima-feats .ima-feat:nth-child(1) { --i: 0; }
.ima-feats .ima-feat:nth-child(2) { --i: 1; }
.ima-feats .ima-feat:nth-child(3) { --i: 2; }
.ima-stagger.in { transform: translateY(-6px); }

/* ---------- 场景切换器（"你可以这样用" ima 风格） ---------- */
.ima-tabs {
  max-width: 1280px; margin: 0 auto; padding: 72px 24px 0;
}
.ima-tabs-head {
  display: flex; justify-content: center; gap: 10px; flex-wrap: wrap; margin-bottom: 36px;
}
.ima-tab-btn {
  padding: 11px 26px; border-radius: 999px; border: 1px solid var(--line); background: #fff;
  font-size: 14px; font-weight: 600; color: var(--ink-2); cursor: pointer;
  transition: all .2s; font-family: inherit;
}
.ima-tab-btn:hover { border-color: var(--primary); color: var(--primary-deep); }
.ima-tab-btn.active {
  background: var(--primary-light); border-color: var(--primary); color: var(--primary-deep);
  box-shadow: 0 4px 14px rgba(106,235,171,.3);
}
.ima-tab-panel {
  display: none; grid-template-columns: 1fr 1.15fr; gap: 48px; align-items: center;
  background: rgba(255,255,255,.55); border: 1px solid var(--line); border-radius: 22px;
  padding: 44px 48px; box-shadow: 0 10px 30px rgba(22,37,31,.05);
}
.ima-tab-panel.active { display: grid; animation: imaFadeUp .35s ease; }
@keyframes imaFadeUp { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: translateY(0); } }
.ima-tab-panel h3 { font-size: 24px; font-weight: 800; color: var(--ink); margin: 0 0 12px; letter-spacing: -0.01em; }
.ima-tab-panel h3 .grad {
  background: var(--grad); -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.ima-tab-panel .tp-desc { font-size: 15px; color: var(--ink-2); line-height: 1.8; margin: 0 0 20px; }
.ima-tab-panel .tp-list { list-style: none; margin: 0 0 26px; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.ima-tab-panel .tp-list li {
  display: flex; align-items: flex-start; gap: 10px; font-size: 14px; color: var(--ink-2); line-height: 1.6;
}
.ima-tab-panel .tp-list li svg { width: 17px; height: 17px; color: var(--primary-deep); flex-shrink: 0; margin-top: 2px; }
.ima-tab-panel .tp-meta { font-size: 13px; color: var(--ink-3); }

/* 场景切换器右侧 mock 图 */
.tp-visual { position: relative; }
.tp-shot {
  background: #0f1512; border-radius: 16px; overflow: hidden;
  box-shadow: 0 22px 50px rgba(15,23,18,.22);
}
.tp-shot .ts-top { display: flex; align-items: center; gap: 6px; padding: 10px 14px; background: #161c19; border-bottom: 1px solid rgba(255,255,255,.06); }
.tp-shot .ts-top i { width: 9px; height: 9px; border-radius: 50%; display: block; }
.tp-shot .ts-top i:nth-child(1) { background: #ff5f57; }
.tp-shot .ts-top i:nth-child(2) { background: #febc2e; }
.tp-shot .ts-top i:nth-child(3) { background: #28c840; }
.tp-shot .ts-top span { margin-left: 8px; font-size: 10.5px; color: rgba(255,255,255,.45); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
.tp-shot .ts-stage {
  position: relative; aspect-ratio: 4/3; display: flex; align-items: center; justify-content: center;
  background:
    radial-gradient(380px 200px at 30% 30%, rgba(106,235,171,.2), transparent 65%),
    radial-gradient(360px 200px at 75% 75%, rgba(63,206,142,.16), transparent 60%),
    linear-gradient(160deg, #1a241f 0%, #0f1512 100%);
}
.tp-shot .ts-stage svg { width: 44px; height: 44px; color: rgba(106,235,171,.75); }
.tp-shot .ts-bar { padding: 10px 14px 12px; background: #121815; }
.tp-shot .ts-timeline { position: relative; height: 28px; }
.tp-shot .ts-timeline .t { position: absolute; top: 50%; left: 0; right: 0; height: 3px; transform: translateY(-50%); border-radius: 2px; background: rgba(255,255,255,.14); }
.tp-shot .ts-timeline .f { position: absolute; top: 50%; left: 12%; width: 38%; height: 3px; transform: translateY(-50%); border-radius: 2px; background: var(--grad); }
.tp-shot .ts-timeline .m { position: absolute; top: 50%; transform: translate(-50%, -50%); width: 11px; height: 11px; border-radius: 50%; background: #fff; border: 3px solid var(--primary); }
.tp-shot .ts-timeline .m.s { left: 12%; }
.tp-shot .ts-timeline .m.e { left: 50%; }
.tp-shot .ts-time { display: flex; justify-content: space-between; margin-top: 6px; font-size: 10.5px; color: rgba(255,255,255,.5); font-variant-numeric: tabular-nums; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }

/* 真实产品截图版 mock（替代 CSS 假界面） */
.tp-img-shot { background: #fff; border: 1px solid rgba(255,255,255,.16); overflow: hidden; }
.tp-img-shot img {
  display: block; width: 100%; height: auto; aspect-ratio: 4/3; object-fit: cover;
  transition: transform .6s cubic-bezier(.22,1,.36,1);
}
.tp-img-shot:hover img { transform: scale(1.04); }
.ft-img-mock { background: #fff; border: 1px solid rgba(255,255,255,.16); }
.ft-img-mock img { display: block; width: 100%; height: auto; object-fit: contain; }
.ima-vid-shot .ima-shot-stage { aspect-ratio: 16/9; background: #000; }
.ima-vid-shot .ima-shot-stage video { width: 100%; height: 100%; object-fit: contain; display: block; }
.tp-tag {
  position: absolute; left: 50%; top: -14px; transform: translateX(-50%);
  background: #fff; border: 1px solid var(--line); border-radius: 999px;
  padding: 5px 14px; font-size: 12px; font-weight: 700; color: var(--primary-deep);
  box-shadow: 0 6px 18px rgba(22,37,31,.12); white-space: nowrap;
  z-index: 5;
}

/* ---------- 左右大功能区块（ima AiNote / 私域共享风格） ---------- */
.ima-feature {
  max-width: 1280px; margin: 0 auto; padding: 96px 24px 0;
  display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center;
}
.ima-feature.rev { direction: rtl; }
.ima-feature.rev > * { direction: ltr; }
.ima-feature .ft-text { text-align: left; }
.ima-feature .ima-pill { margin-bottom: 16px; }
.ima-feature h2 {
  font-size: clamp(24px, 2.8vw, 34px); font-weight: 800; letter-spacing: -0.01em;
  color: var(--ink); margin: 0 0 12px; line-height: 1.25;
}
.ima-feature h2 .grad {
  background: var(--grad); -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.ima-feature .ft-sub { font-size: 15px; font-weight: 600; color: var(--primary-deep); margin: 0 0 10px; }
.ima-feature .ft-desc { font-size: 15px; color: var(--ink-2); line-height: 1.8; margin: 0 0 26px; }
.ima-feature .ft-pts { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 14px; }
.ima-feature .ft-pts li { display: flex; align-items: flex-start; gap: 12px; }
.ima-feature .ft-pts .pt-ic {
  width: 30px; height: 30px; border-radius: 9px; background: var(--primary-light);
  display: flex; align-items: center; justify-content: center; color: var(--primary-deep); flex-shrink: 0; margin-top: 1px;
}
.ima-feature .ft-pts .pt-ic svg { width: 15px; height: 15px; }
.ima-feature .ft-pts b { display: block; font-size: 14.5px; font-weight: 700; color: var(--ink); margin-bottom: 2px; }
.ima-feature .ft-pts span { font-size: 13px; color: var(--ink-2); line-height: 1.6; }

/* 大区块右侧：大 mock 图 */
.ima-feature .ft-visual { position: relative; }
.ft-mock {
  background: #fff; border: 1px solid var(--line); border-radius: 20px; overflow: hidden;
  box-shadow: 0 26px 60px rgba(22,37,31,.12); position: relative;
  transition: transform .4s cubic-bezier(.22,1,.36,1), box-shadow .4s ease;
}
.ima-feature:hover .ft-mock { transform: translateY(-6px); box-shadow: none; }
.ft-img-mock img { width: 100%; height: auto; display: block; transition: transform .6s cubic-bezier(.22,1,.36,1); }
.ima-feature:hover .ft-img-mock img { transform: scale(1.02); }
.ft-mock .fm-head {
  display: flex; align-items: center; gap: 6px; padding: 13px 18px; border-bottom: 1px solid var(--line); background: #fafcfb;
}
.ft-mock .fm-head i { width: 10px; height: 10px; border-radius: 50%; display: block; }
.ft-mock .fm-head i:nth-child(1) { background: #ff5f57; }
.ft-mock .fm-head i:nth-child(2) { background: #febc2e; }
.ft-mock .fm-head i:nth-child(3) { background: #28c840; }
.ft-mock .fm-head span { margin-left: 8px; font-size: 11.5px; color: var(--ink-3); font-weight: 600; }

/* 任务列表 mock */
.fm-list { padding: 10px 16px 14px; display: flex; flex-direction: column; gap: 8px; }
.fm-row {
  display: flex; align-items: center; gap: 12px; padding: 11px 14px;
  border: 1px solid var(--line); border-radius: 12px; background: #fff; transition: all .2s;
}
.fm-row:hover { border-color: var(--primary); background: var(--primary-50); }
.fm-row .fm-st {
  width: 26px; height: 26px; border-radius: 50%; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
}
.fm-row .fm-st.done { background: var(--primary-light); color: var(--primary-deep); }
.fm-row .fm-st.run { background: #eef2ff; color: #6366f1; }
.fm-row .fm-st svg { width: 13px; height: 13px; }
.fm-row .fm-name { flex: 1; min-width: 0; font-size: 13px; font-weight: 600; color: var(--ink); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.fm-row .fm-range { font-size: 12px; font-weight: 700; color: var(--primary-deep); font-variant-numeric: tabular-nums; flex-shrink: 0; }
.fm-row .fm-time { font-size: 11px; color: var(--ink-3); flex-shrink: 0; }
.fm-row .fm-prog { width: 74px; height: 5px; border-radius: 3px; background: #eef1f0; overflow: hidden; flex-shrink: 0; }
.fm-row .fm-prog i { display: block; height: 100%; border-radius: 3px; background: var(--grad); }

/* 权限/角色卡（ima 创建者/管理员风格） */
.fm-roles { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; padding: 16px; }
.fm-role {
  border: 1px solid var(--line); border-radius: 14px; padding: 16px;
  background: #fff; transition: all .2s;
}
.fm-role:hover { border-color: rgba(106,235,171,.6); box-shadow: 0 10px 24px rgba(22,37,31,.07); }
.fm-role .fr-tag {
  display: inline-block; font-size: 11px; font-weight: 700; padding: 3px 10px; border-radius: 999px;
  background: var(--primary-light); color: var(--primary-deep); margin-bottom: 8px;
}
.fm-role b { display: block; font-size: 14.5px; color: var(--ink); margin-bottom: 4px; }
.fm-role span { font-size: 12px; color: var(--ink-2); line-height: 1.55; display: block; }

/* 大数字统计条（ima 4亿+ 风格） */
.ima-stats {
  max-width: 1280px; margin: 0 auto; padding: 88px 24px 0;
}
.ima-stats-inner {
  background: rgba(255,255,255,.40);
  border: 1px solid var(--line); border-radius: 22px;
  padding: 44px 40px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
}
.ima-stat { text-align: center; position: relative; }
.ima-stat + .ima-stat::before {
  content: ''; position: absolute; left: -12px; top: 50%; transform: translateY(-50%);
  width: 1px; height: 56px; background: rgba(22,37,31,.08);
}
.ima-stat b {
  display: block; font-size: clamp(30px, 3.4vw, 42px); font-weight: 800; letter-spacing: -0.02em;
  background: var(--grad); -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent; line-height: 1.1;
}
.ima-stat span { display: block; font-size: 13px; color: var(--ink-2); margin-top: 8px; }

/* ---------- FAQ（手风琴） ---------- */
.ima-faq {
  max-width: 860px; margin: 0 auto; padding: 88px 24px 0; text-align: center;
}
.ima-faq h2 {
  font-size: clamp(24px, 2.8vw, 34px); font-weight: 800; letter-spacing: -0.01em;
  color: var(--ink); margin: 0 0 40px; line-height: 1.25;
}
.faq-list { text-align: left; display: flex; flex-direction: column; gap: 12px; }
.faq-item {
  background: var(--card); border: 1px solid var(--line); border-radius: 16px; overflow: hidden;
  transition: all .2s;
}
.faq-item:hover { border-color: rgba(106,235,171,.5); }
.faq-item.open { border-color: var(--primary); box-shadow: 0 10px 28px rgba(22,37,31,.07); }
.faq-q {
  width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 20px 24px; background: none; border: none; cursor: pointer;
  font-size: 15px; font-weight: 700; color: var(--ink); font-family: inherit; text-align: left;
}
.faq-q .faq-arrow {
  width: 26px; height: 26px; border-radius: 50%; background: var(--primary-light); flex-shrink: 0;
  display: flex; align-items: center; justify-content: center; color: var(--primary-deep);
  transition: transform .25s;
}
.faq-q .faq-arrow svg { width: 13px; height: 13px; }
.faq-item.open .faq-arrow { transform: rotate(180deg); }
.faq-a { display: none; padding: 0 24px 20px; font-size: 14px; color: var(--ink-2); line-height: 1.8; }
.faq-item.open .faq-a { display: block; }

/* ---------- CTA（ima 底部下载风格） ---------- */
.ima-cta {
  max-width: 1280px; margin: 0 auto; padding: 88px 24px;
}
.ima-cta-inner {
  background:
    radial-gradient(700px 300px at 85% 20%, rgba(255,255,255,.16), transparent 60%),
    linear-gradient(135deg, #3fae7d 0%, #238f63 100%);
  border-radius: 24px; padding: 64px 40px; text-align: center; position: relative; overflow: hidden;
}
.ima-cta-inner::before, .ima-cta-inner::after {
  content: ''; position: absolute; border-radius: 50%; background: rgba(255,255,255,.07);
}
.ima-cta-inner::before { width: 260px; height: 260px; left: -80px; bottom: -120px; }
.ima-cta-inner::after { width: 180px; height: 180px; right: -50px; top: -70px; }
.ima-cta-inner h2 { font-size: clamp(24px, 2.6vw, 32px); font-weight: 800; color: #fff; margin: 0 0 12px; position: relative; }
.ima-cta-inner p { font-size: 15px; color: rgba(255,255,255,.85); margin: 0 0 28px; position: relative; }
.ima-cta-actions { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; position: relative; }
.ima-cta-inner .ima-btn {
  background: #fff; color: var(--primary-deep); box-shadow: 0 10px 28px rgba(0,0,0,.18); position: relative;
}
.ima-cta-inner .ima-btn:hover { transform: translateY(-2px); color: var(--primary-deep); }
.ima-cta-inner .ima-btn.ghost-cta {
  background: rgba(255,255,255,.14); color: #fff; border: 1px solid rgba(255,255,255,.4);
  box-shadow: none;
}
.ima-cta-inner .ima-btn.ghost-cta:hover { background: rgba(255,255,255,.22); color: #fff; }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .ima-hero-inner { grid-template-columns: 1fr; gap: 40px; padding: 40px 24px 64px; }
  .ima-visual { max-width: 560px; margin: 0 auto; width: 100%; }
  .ima-shot-float { right: -8px; }
  .ima-feats { flex-wrap: wrap; } .ima-feat { flex: 1 1 40%; max-width: none; } .ima-feat:nth-child(2) { margin-top: 0; }
  .ima-tab-panel { grid-template-columns: 1fr; padding: 32px 28px; }
  .ima-feature { grid-template-columns: 1fr; gap: 40px; }
  .ima-stats-inner { grid-template-columns: 1fr 1fr; }
  .ima-stat + .ima-stat::before { display: none; }
}
@media (max-width: 720px) {
  .ima-hero-inner { padding: 28px 20px 52px; }
  .ima-workbench { margin-top: -36px; padding: 0 14px; }
  .ima-feat { flex: 1 1 100%; }
  .ima-section { padding: 64px 20px 0; }
  .ima-feature { padding: 72px 20px 0; }
  .ima-tabs { padding: 56px 20px 0; }
  .ima-stats { padding: 64px 20px 0; }
  .ima-faq { padding: 64px 20px 0; }
  .ima-cta { padding: 56px 20px; }
  .ima-cta-inner { padding: 44px 22px; }
  .ima-shot-float { display: none; }
  .fm-roles { grid-template-columns: 1fr; }
}

/* ---------- 旧模板样式（过渡期兼容，批量改造后移除） ---------- */
.hero-tool {
  max-width: 1280px; margin: 0 auto; padding: 56px 24px 0;
}
.hero-tool .badge {
  display: inline-flex; align-items: center; gap: 6px; background: #f0f7ff; color: #0573f3;
  font-size: 13px; font-weight: 600; padding: 6px 14px; border-radius: 999px; margin-bottom: 16px;
}
.hero-tool .badge svg { width: 13px; height: 13px; }
.hero-tool h1 { font-size: clamp(28px, 3.4vw, 40px); font-weight: 800; color: #16251f; margin: 0 0 12px; line-height: 1.2; }
.hero-tool h1 .grad {
  background: linear-gradient(135deg, #6aebab 0%, #3ecf8e 100%);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; color: transparent;
}
.hero-tool .sub { font-size: 15px; color: #4a5b54; line-height: 1.7; margin: 0 0 32px; max-width: 640px; }
.hero-tool .sub b { color: #16251f; }
.tw-wrap { margin-top: -14px; }
.num-strip {
  max-width: 1280px; margin: 0 auto; padding: 24px;
}
.num-strip-inner {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px;
  background: #fff; border: 1px solid #e2ede7; border-radius: 18px; padding: 26px 30px;
}
.num-item { text-align: center; }
.num-item b {
  display: block; font-size: 28px; font-weight: 800; letter-spacing: -0.02em;
  background: linear-gradient(135deg, #6aebab 0%, #3ecf8e 100%);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; color: transparent;
}
.num-item span { display: block; font-size: 12.5px; color: #4a5b54; margin-top: 6px; }
.section-head h2 { font-size: clamp(24px, 2.6vw, 32px); font-weight: 800; color: #16251f; margin: 0 0 10px; }
.section-head p { font-size: 14.5px; color: #4a5b54; margin: 0; }
.tool-feats, .tool-steps { max-width: 1280px; margin: 0 auto; padding: 64px 24px 0; text-align: center; }
.feat-grid, .steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 40px; text-align: left; }
.feat-card, .step {
  background: #fff; border: 1px solid #e2ede7; border-radius: 16px; padding: 28px 24px;
}
.feat-card .ic {
  width: 46px; height: 46px; border-radius: 13px; display: flex; align-items: center; justify-content: center; margin-bottom: 16px;
}
.feat-card h3, .step h3 { font-size: 16px; font-weight: 700; color: #16251f; margin: 0 0 8px; }
.feat-card p, .step p { font-size: 13.5px; color: #4a5b54; line-height: 1.7; margin: 0; }
.step .num {
  width: 34px; height: 34px; border-radius: 50%; background: #e6f7ee; color: #238f63;
  display: flex; align-items: center; justify-content: center; font-weight: 800; margin-bottom: 14px;
}
.tool-cta { max-width: 1280px; margin: 0 auto; padding: 64px 24px; }
.cta-banner {
  background: linear-gradient(135deg, #3fae7d 0%, #238f63 100%); border-radius: 22px;
  padding: 52px 36px; text-align: center; color: #fff;
}
.cta-banner h2 { font-size: 26px; font-weight: 800; margin: 0 0 10px; color: #fff; }
.cta-banner p { font-size: 14.5px; color: rgba(255,255,255,.85); margin: 0 0 24px; }
.btn-hero.primary {
  display: inline-flex; align-items: center; gap: 6px; background: #fff; color: #238f63;
  padding: 12px 28px; border-radius: 12px; font-weight: 700; text-decoration: none;
  box-shadow: 0 8px 20px rgba(0,0,0,.15);
}
.btn-hero.primary:hover { transform: translateY(-2px); }

/* ---------- ima 用户案例区（引用式大卡，横向流动） ---------- */
.ima-cases {
  display: flex; gap: 20px; text-align: left;
  overflow-x: auto; padding: 4px 4px 18px;
  scroll-snap-type: x mandatory; scrollbar-width: thin;
}
.ima-cases::-webkit-scrollbar { height: 6px; }
.ima-cases::-webkit-scrollbar-thumb { background: rgba(106,235,171,.35); border-radius: 3px; }
.ima-case {
  background: rgba(255,255,255,.55); border: 1px solid var(--line); border-radius: 18px;
  padding: 30px 28px 26px; transition: all .25s ease; position: relative;
  display: flex; flex-direction: column;
  min-width: 320px; width: 340px; flex-shrink: 0;
  scroll-snap-align: start;
}
.ima-case:hover { transform: translateY(-4px); box-shadow: none; border-color: rgba(106,235,171,.5); }
.ima-case .cs-quote {
  width: 34px; height: 26px; color: rgba(106,235,171,.65); margin-bottom: 14px;
}
.ima-case .cs-quote svg { width: 34px; height: 26px; }
.ima-case p { font-size: 14px; color: var(--ink-2); line-height: 1.8; margin: 0 0 22px; flex: 1; }
.ima-case .cs-head { display: flex; align-items: center; gap: 14px; border-top: 1px solid var(--line); padding-top: 18px; }
.ima-case .cs-avatar {
  width: 46px; height: 46px; border-radius: 50%; flex-shrink: 0;
  background: var(--grad); color: #fff; display: flex; align-items: center; justify-content: center;
  font-size: 17px; font-weight: 800;
}
.ima-case .cs-name { font-size: 15px; font-weight: 700; color: var(--ink); line-height: 1.3; }
.ima-case .cs-role { font-size: 12.5px; color: var(--ink-3); margin-top: 3px; }

/* ---------- ima 支持格式：横向滚动标签条（非网格） ---------- */
.fmt-strip {
  display: flex; gap: 14px; overflow-x: auto; padding: 6px 4px 20px;
  scroll-snap-type: x proximity; scrollbar-width: thin;
  -webkit-mask-image: linear-gradient(90deg, transparent 0, #000 40px, #000 calc(100% - 40px), transparent 100%);
  mask-image: linear-gradient(90deg, transparent 0, #000 40px, #000 calc(100% - 40px), transparent 100%);
}
.fmt-strip::-webkit-scrollbar { height: 6px; }
.fmt-strip::-webkit-scrollbar-thumb { background: rgba(106,235,171,.4); border-radius: 3px; }
.fmt-chip {
  flex-shrink: 0; scroll-snap-align: start;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  min-width: 116px; height: 96px; padding: 0 22px;
  background: var(--card); border: 1px solid var(--line); border-radius: 16px;
  transition: all .25s ease; position: relative; overflow: hidden;
}
.fmt-chip::after {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(120px 60px at 50% 0%, rgba(106,235,171,.16), transparent 70%);
  opacity: 0; transition: opacity .25s;
}
.fmt-chip:hover { transform: translateY(-4px); border-color: var(--primary); box-shadow: 0 14px 30px rgba(22,37,31,.1); }
.fmt-chip:hover::after { opacity: 1; }
.fmt-chip b { font-size: 17px; font-weight: 800; color: var(--ink); letter-spacing: .02em; position: relative; z-index: 1; }
.fmt-chip span { font-size: 12px; color: var(--ink-3); margin-top: 4px; position: relative; z-index: 1; }
.fmt-chip.hot {
  background: linear-gradient(135deg, rgba(106,235,171,.16), rgba(63,206,142,.08));
  border-color: rgba(106,235,171,.5);
}
.fmt-chip.hot b { color: var(--primary-deep); }

/* ---------- ima 快速上手：横向时间线（非网格） ---------- */
.step-flow {
  display: flex; align-items: stretch; justify-content: center;
  max-width: 1080px; margin: 0 auto; gap: 0;
}
.step-node { flex: 1; min-width: 0; text-align: center; padding: 0 18px; position: relative; }
.step-node .sn-ic {
  width: 64px; height: 64px; margin: 0 auto 18px; border-radius: 20px;
  background: linear-gradient(135deg, var(--primary-light), #eaf2fe);
  border: 1px solid rgba(106,235,171,.4);
  display: flex; align-items: center; justify-content: center;
  transition: all .3s ease; position: relative;
}
.step-node .sn-ic svg { width: 26px; height: 26px; color: var(--primary-deep); }
.step-node:hover .sn-ic { transform: translateY(-5px) rotate(-3deg); box-shadow: 0 14px 30px rgba(63,174,125,.25); }
.step-node .sn-num {
  position: absolute; top: -10px; left: 50%; transform: translateX(-50%);
  font-size: 11px; font-weight: 800; letter-spacing: .12em; color: var(--primary);
  background: var(--card); border: 1px solid rgba(106,235,171,.5); border-radius: 999px;
  padding: 2px 10px; z-index: 2;
}
.step-node h3 { font-size: 16.5px; font-weight: 700; color: var(--ink); margin: 0 0 8px; }
.step-node p { font-size: 13px; color: var(--ink-2); line-height: 1.7; margin: 0; max-width: 220px; margin-left: auto; margin-right: auto; }
.step-line { width: 48px; display: flex; align-items: flex-start; padding-top: 32px; flex-shrink: 0; }
.step-line i {
  flex: 1; height: 2px; margin-top: 12px; position: relative;
  background: linear-gradient(90deg, rgba(106,235,171,.15), rgba(106,235,171,.55));
  border-radius: 2px; overflow: hidden;
}
.step-line i::after {
  content: ''; position: absolute; top: 0; bottom: 0; width: 30%;
  background: linear-gradient(90deg, transparent, rgba(106,235,171,.9), transparent);
  animation: stepFlow 2.2s ease-in-out infinite;
}
@keyframes stepFlow { 0% { left: -30%; } 100% { left: 100%; } }

/* ---------- FAQ：手风琴（ima 风格，精修） ---------- */
.ima-faq h2 {
  text-align: center; font-size: clamp(26px, 3vw, 36px); font-weight: 800;
  color: var(--ink); margin: 0 0 44px; letter-spacing: -0.01em;
}
.faq-list { max-width: 860px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item {
  background: var(--card); border: 1px solid var(--line); border-radius: 16px;
  overflow: hidden; transition: all .25s ease;
}
.faq-item:hover { border-color: rgba(106,235,171,.55); }
.faq-item.open { border-color: var(--primary); box-shadow: 0 12px 30px rgba(22,37,31,.08); }
.faq-q {
  width: 100%; display: flex; align-items: center; gap: 12px; padding: 20px 24px;
  background: none; border: none; cursor: pointer; text-align: left;
  font-size: 15px; font-weight: 700; color: var(--ink); font-family: inherit;
}
.faq-q::before {
  content: ''; width: 6px; height: 6px; border-radius: 50%; flex-shrink: 0;
  background: var(--line-2); transition: all .2s;
}
.faq-item.open .faq-q::before { background: var(--primary); box-shadow: 0 0 0 4px rgba(106,235,171,.25); }
.faq-arrow { margin-left: auto; transition: transform .3s ease; color: var(--ink-3); display: flex; }
.faq-arrow svg { width: 16px; height: 16px; }
.faq-item.open .faq-arrow { transform: rotate(180deg); color: var(--primary-deep); }
.faq-a {
  max-height: 0; overflow: hidden; padding: 0 24px; transition: all .35s ease;
  font-size: 14px; color: var(--ink-2); line-height: 1.75;
}
.faq-item.open .faq-a { max-height: 200px; padding: 0 24px 20px 42px; }

/* ---------- 工作台进入视口浮起动画 ---------- */
.ima-wb-shell { animation: wbRise .9s cubic-bezier(.22,1,.36,1) both; }
@keyframes wbRise { from { opacity: 0; transform: translateY(40px); } to { opacity: 1; transform: none; } }

/* ---------- 响应式：格式条/时间线 ---------- */
@media (max-width: 1024px) {
  .step-flow { flex-wrap: wrap; gap: 24px 0; }
  .step-node { flex: 1 1 40%; }
  .step-line { display: none; }
}
@media (max-width: 640px) {
  .step-node { flex: 1 1 100%; }
}

/* ============================================================
   工具营销页背景流体光效（与首页同款：transform/opacity 动画，GPU 零重绘）
   各页面通过 .bf-1~4 覆盖颜色/尺寸/位置/时长实现差异化
   ============================================================ */
.bg-fluid{position:fixed;inset:0;z-index:-1;pointer-events:none;overflow:hidden}
.bf{position:absolute;border-radius:50%;will-change:transform,opacity}
@keyframes bfDrift1{
  0%{transform:translate3d(0,0,0) scale(1);opacity:.95}
  50%{transform:translate3d(7vw,5vh,0) scale(1.18);opacity:1}
  100%{transform:translate3d(-3vw,11vh,0) scale(.9);opacity:.65}
}
@keyframes bfDrift2{
  0%{transform:translate3d(0,0,0) scale(1.05);opacity:.68}
  50%{transform:translate3d(-6vw,7vh,0) scale(.88);opacity:.95}
  100%{transform:translate3d(3vw,-4vh,0) scale(1.2);opacity:.6}
}
@keyframes bfDrift3{
  0%{transform:translate3d(0,0,0) scale(.95);opacity:.64}
  50%{transform:translate3d(5vw,-6vh,0) scale(1.15);opacity:.9}
  100%{transform:translate3d(-5vw,4vh,0) scale(1);opacity:.6}
}
@keyframes bfDrift4{
  0%{transform:translate3d(0,0,0) scale(1);opacity:.6}
  50%{transform:translate3d(-4vw,-5vh,0) scale(1.1);opacity:.85}
  100%{transform:translate3d(6vw,8vh,0) scale(.9);opacity:.55}
}
@media (max-width: 767.98px){
  .bg-fluid .bf{width:90vw !important;height:90vw !important}
}