/* ============================================================
   全自动化精准获客 · 营销站样式（暖色调 v2）
   暖阳渐变（橙 / 琥珀 / 珊瑚）+ 明亮 SaaS 卡片化布局
   纯静态，无框架。
   ============================================================ */

:root {
  --bg: #ffffff;
  --bg-soft: #fff8f1;       /* 暖白 */
  --bg-mute: #fdeee0;       /* 暖米 */
  --fg: #2a1a12;            /* 暖深棕黑 */
  --fg-soft: #5b463b;
  --fg-mute: #927d70;
  --border: #f0e3d6;
  --border-strong: #e4d2bf;
  --accent: #ea580c;        /* orange-600 主色 */
  --accent-2: #f59e0b;      /* amber-500 */
  --accent-3: #fb7185;      /* rose-400 珊瑚 */
  --accent-deep: #c2410c;   /* orange-700 */
  --accent-warn: #e11d48;   /* rose-600 */
  --good: #16a34a;
  --bad: #dc2626;
  --gold: #f5a623;
  --shadow-sm: 0 1px 2px rgba(120, 60, 20, .06);
  --shadow-md: 0 10px 30px rgba(200, 90, 30, .10);
  --shadow-lg: 0 28px 64px rgba(200, 90, 30, .16);
  --radius: 18px;
  --radius-sm: 11px;
  --max-w: 1180px;
  --grad: linear-gradient(135deg, #fb7185 0%, #f97316 48%, #f59e0b 100%);
  --grad-deep: linear-gradient(135deg, #e11d48 0%, #ea580c 50%, #d97706 100%);
  --grad-soft: linear-gradient(135deg, rgba(251,113,133,.12), rgba(249,115,22,.10), rgba(245,158,11,.12));
  --grad-text: linear-gradient(120deg, #f43f5e, #f97316 55%, #f59e0b);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  font-size: 16px;
  line-height: 1.65;
  color: var(--fg);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
a { color: var(--accent); text-decoration: none; transition: color .15s; }
a:hover { color: var(--accent-deep); }
img { max-width: 100%; display: block; }
h1, h2, h3, h4 { line-height: 1.25; margin: 0 0 .5em; letter-spacing: -.01em; }
h1 { font-size: clamp(31px, 5vw, 54px); font-weight: 800; }
h2 { font-size: clamp(25px, 3.4vw, 37px); font-weight: 800; }
h3 { font-size: 20px; font-weight: 700; }
p { margin: 0 0 1em; }

.container { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }
.grad-text { background: var(--grad-text);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; color: transparent; }
.muted { color: var(--fg-mute); }
.center { text-align: center; }
.eyebrow { display: inline-block; font-size: 13px; font-weight: 700; letter-spacing: .08em;
  text-transform: uppercase; color: var(--accent-deep); margin-bottom: 14px; }

/* ---------- Buttons ---------- */
.btn { display: inline-flex; align-items: center; gap: 8px; justify-content: center;
  font-weight: 600; font-size: 15px; padding: 12px 22px; border-radius: 999px;
  border: 1px solid transparent; cursor: pointer; transition: all .18s; white-space: nowrap; }
.btn-primary { background: var(--grad); color: #fff; box-shadow: 0 10px 24px rgba(234,88,12,.30); }
.btn-primary:hover { color: #fff; transform: translateY(-1px); box-shadow: 0 14px 30px rgba(234,88,12,.40); }
.btn-ghost { background: var(--bg); color: var(--fg); border-color: var(--border-strong); }
.btn-ghost:hover { color: var(--accent-deep); border-color: var(--accent); box-shadow: var(--shadow-sm); }
.btn-lg { padding: 15px 30px; font-size: 16px; }
.btn-block { width: 100%; }

/* ---------- Header / Nav ---------- */
.site-header { position: sticky; top: 0; z-index: 50;
  background: rgba(255,251,246,.85); backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--border); }
.nav { display: flex; align-items: center; justify-content: space-between; height: 66px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 18px; color: var(--fg); }
.brand:hover { color: var(--fg); }
.brand .logo { width: 32px; height: 32px; border-radius: 50%; background: var(--grad);
  display: grid; place-items: center; color: #fff; font-weight: 800; font-size: 15px; overflow: hidden;
  box-shadow: 0 4px 12px rgba(234,88,12,.35); }
.nav-links { display: flex; align-items: center; gap: 26px; }
.nav-links a { color: var(--fg-soft); font-size: 15px; font-weight: 500; }
.nav-links a:hover, .nav-links a.active { color: var(--accent-deep); }
.nav-cta { display: flex; align-items: center; gap: 12px; }
.nav-toggle { display: none; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--fg); margin: 4px 0; transition: .2s; }

@media (max-width: 940px) {
  .nav-links { position: absolute; top: 66px; left: 0; right: 0; flex-direction: column; gap: 0;
    background: var(--bg); border-bottom: 1px solid var(--border); padding: 8px 0;
    transform: translateY(-12px); opacity: 0; pointer-events: none; transition: .2s; }
  .nav-links.open { transform: none; opacity: 1; pointer-events: auto; box-shadow: var(--shadow-md); }
  .nav-links a { width: 100%; padding: 12px 24px; }
  .nav-toggle { display: block; }
  .nav-cta .btn:not(.nav-toggle) { display: none; }
}

/* ---------- Sections ---------- */
section { padding: 84px 0; }
.section-sm { padding: 56px 0; }
.section-soft { background: var(--bg-soft); }
.section-head { max-width: 740px; margin: 0 auto 52px; text-align: center; }
.section-head p { font-size: 18px; color: var(--fg-mute); }

/* ---------- Hero ---------- */
.hero { position: relative; padding: 96px 0 78px; overflow: hidden; }
.hero::before { content: ""; position: absolute; inset: -10% -10% auto -10%; height: 120%; z-index: -1;
  background:
    radial-gradient(50% 60% at 18% 8%, rgba(251,113,133,.22), transparent 60%),
    radial-gradient(55% 60% at 85% 0%, rgba(245,158,11,.22), transparent 60%),
    radial-gradient(60% 70% at 50% 100%, rgba(249,115,22,.14), transparent 65%); }
.hero-inner { max-width: 880px; margin: 0 auto; text-align: center; }
.hero h1 { margin-bottom: 22px; }
.hero .lead { font-size: clamp(17px, 2.2vw, 21px); color: var(--fg-soft); max-width: 700px; margin: 0 auto 30px; }
.hero-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-bottom: 28px; }
.trust-strip { display: flex; flex-wrap: wrap; gap: 10px 22px; justify-content: center; font-size: 14px; color: var(--fg-mute); }
.trust-strip span { display: inline-flex; align-items: center; gap: 7px; }
.trust-strip .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }

/* ---------- Marquee (platform names) ---------- */
.marquee { overflow: hidden; -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent); }
.marquee-track { display: inline-flex; gap: 44px; white-space: nowrap; animation: marquee 22s linear infinite; padding-right: 44px; }
.marquee:hover .marquee-track { animation-play-state: paused; }
.marquee .item { font-weight: 700; font-size: 18px; color: var(--fg-mute); display: inline-flex; align-items: center; gap: 8px; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------- Grids ---------- */
.grid { display: grid; gap: 22px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 920px) { .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }

.card { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 28px; box-shadow: var(--shadow-sm); transition: transform .2s, box-shadow .2s, border-color .2s; }
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: var(--border-strong); }
.card .ico { width: 48px; height: 48px; border-radius: 13px; display: grid; place-items: center;
  font-size: 23px; margin-bottom: 16px; background: var(--grad-soft); color: var(--accent-deep); }
.card h3 { margin-bottom: 8px; }
.card p { color: var(--fg-mute); font-size: 15px; margin: 0; }
.card-link { display: inline-block; margin-top: 14px; font-weight: 600; font-size: 14px; }

.pain-card { text-align: left; }
.pain-card .q { font-size: 19px; font-weight: 700; margin-bottom: 6px; }

/* ---------- Bento grid (features) ---------- */
.bento { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.bento .b { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 26px; box-shadow: var(--shadow-sm); transition: transform .2s, box-shadow .2s; position: relative; overflow: hidden; }
.bento .b:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.bento .b.wide { grid-column: span 2; }
.bento .b .ico { font-size: 26px; margin-bottom: 12px; }
.bento .b h3 { margin-bottom: 6px; font-size: 18px; }
.bento .b p { color: var(--fg-mute); font-size: 14px; margin: 0; }
.bento .b .glow { position: absolute; width: 160px; height: 160px; border-radius: 50%;
  background: var(--grad); filter: blur(60px); opacity: .14; right: -40px; top: -40px; }
@media (max-width: 920px) { .bento { grid-template-columns: repeat(2, 1fr); } .bento .b.wide { grid-column: span 2; } }
@media (max-width: 600px) { .bento { grid-template-columns: 1fr; } .bento .b.wide { grid-column: span 1; } }

/* ---------- Module cards ---------- */
.module { display: flex; flex-direction: column; gap: 6px; padding: 30px;
  border: 1px solid var(--border); border-radius: var(--radius); background: var(--bg);
  box-shadow: var(--shadow-sm); transition: transform .2s, box-shadow .2s; }
.module:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: var(--border-strong); }
.module .tag { font-size: 13px; font-weight: 700; color: var(--accent-deep); letter-spacing: .04em; }
.module h3 { margin: 4px 0 6px; }
.module .quote { color: var(--fg-soft); font-size: 15px; font-style: italic; margin-bottom: 14px; }
.module ul { margin: 0; padding-left: 18px; color: var(--fg-mute); font-size: 14px; }
.module ul li { margin-bottom: 6px; }
.module .soon { align-self: flex-start; font-size: 12px; font-weight: 700; color: var(--accent-warn);
  background: rgba(225,29,72,.1); padding: 2px 10px; border-radius: 999px; margin-bottom: 8px; }

/* ---------- Flow / pipeline ---------- */
.flow { display: flex; align-items: stretch; gap: 0; flex-wrap: wrap; justify-content: center; }
.flow-step { position: relative; flex: 1 1 130px; min-width: 130px; text-align: center; padding: 22px 14px;
  border: 1px solid var(--border); border-radius: var(--radius-sm); background: var(--bg); margin: 8px; box-shadow: var(--shadow-sm); }
.flow-step .n { font-size: 13px; font-weight: 800; color: #fff; background: var(--grad);
  width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; margin: 0 auto 10px; }
.flow-step h4 { margin: 0 0 4px; font-size: 16px; }
.flow-step p { font-size: 13px; color: var(--fg-mute); margin: 0; }
.flow-loop { text-align: center; margin-top: 22px; font-size: 15px; color: var(--fg-soft); }
.flow-loop b { color: var(--accent-deep); }

/* ---------- Metric / counter cards ---------- */
.metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
@media (max-width: 700px) { .metrics { grid-template-columns: 1fr; } }
.metric { text-align: center; padding: 32px 20px; border-radius: var(--radius);
  background: var(--bg); border: 1px solid var(--border); box-shadow: var(--shadow-sm); }
.metric .num { font-size: clamp(34px, 5vw, 48px); font-weight: 800; line-height: 1;
  background: var(--grad-text); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.metric .lbl { margin-top: 10px; color: var(--fg-soft); font-weight: 600; }
.metric .sub { font-size: 13px; color: var(--fg-mute); margin-top: 4px; }

/* ---------- Comparison table ---------- */
.cmp { width: 100%; border-collapse: separate; border-spacing: 0; font-size: 15px;
  border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.cmp th, .cmp td { padding: 15px 18px; text-align: left; border-bottom: 1px solid var(--border); }
.cmp thead th { background: var(--bg-mute); font-weight: 700; font-size: 14px; }
.cmp tbody tr:last-child td { border-bottom: 0; }
.cmp .us { font-weight: 600; color: var(--fg); }
.cmp .us-col { background: var(--grad-soft); }
.cmp .yes { color: var(--good); font-weight: 700; }
.cmp .no { color: var(--bad); }
.tbl-wrap { overflow-x: auto; }

/* ---------- Testimonials ---------- */
.tcard { padding: 28px; border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--bg); box-shadow: var(--shadow-sm); }
.tcard .stars { color: var(--gold); font-size: 15px; margin-bottom: 12px; }
.tcard blockquote { margin: 0 0 18px; font-size: 16px; color: var(--fg-soft); }
.tcard .who { display: flex; align-items: center; gap: 12px; }
.tcard .avatar { width: 42px; height: 42px; border-radius: 50%; background: var(--grad);
  display: grid; place-items: center; color: #fff; font-weight: 700; }
.tcard .who b { display: block; font-size: 15px; }
.tcard .who small { color: var(--fg-mute); }
.tcard .kpi { margin-top: 14px; font-weight: 700; color: var(--accent-deep); font-size: 14px;
  background: var(--grad-soft); display: inline-block; padding: 4px 12px; border-radius: 999px; }

/* ---------- Screenshot placeholder + gallery ---------- */
.shot { border: 1px dashed var(--border-strong); border-radius: var(--radius); background: var(--bg-soft);
  display: grid; place-items: center; text-align: center; color: var(--fg-mute); min-height: 280px; padding: 32px; gap: 6px; }
.shot .ico { font-size: 34px; opacity: .6; }
.shot small { font-size: 12px; opacity: .8; }

.gallery { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
@media (max-width: 900px) { .gallery { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .gallery { grid-template-columns: 1fr; } }
.gshot { border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; background: var(--bg);
  box-shadow: var(--shadow-sm); transition: transform .2s, box-shadow .2s; }
.gshot:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.gshot .frame { aspect-ratio: 16/10; background: var(--grad-soft); display: grid; place-items: center;
  text-align: center; color: var(--accent-deep); border-bottom: 1px dashed var(--border-strong); padding: 20px; }
.gshot .frame .ico { font-size: 30px; margin-bottom: 6px; }
.gshot .frame small { display: block; color: var(--fg-mute); font-size: 11px; margin-top: 4px; }
.gshot .cap { padding: 14px 18px; }
.gshot .cap b { font-size: 15px; }
.gshot .cap p { margin: 4px 0 0; font-size: 13px; color: var(--fg-mute); }
.gshot.tall .frame { aspect-ratio: 9/13; }

/* phone mock for chat screenshots */
.phone { max-width: 300px; margin: 0 auto; border: 8px solid #2a1a12; border-radius: 34px; overflow: hidden;
  box-shadow: var(--shadow-lg); background: #2a1a12; }
.phone .pframe { aspect-ratio: 9/17; background: #eafbe7; display: grid; place-items: center; text-align: center;
  color: var(--fg-mute); padding: 22px; }

/* video placeholder */
.video-ph { position: relative; border-radius: var(--radius); overflow: hidden; aspect-ratio: 16/9;
  background: linear-gradient(135deg, #fde2c8, #fcd1cf); display: grid; place-items: center; box-shadow: var(--shadow-md); }
.video-ph .play { width: 76px; height: 76px; border-radius: 50%; background: rgba(255,255,255,.92); color: var(--accent);
  display: grid; place-items: center; font-size: 30px; box-shadow: var(--shadow-md); cursor: pointer; transition: transform .2s; }
.video-ph:hover .play { transform: scale(1.08); }
.video-ph .vlabel { position: absolute; bottom: 14px; left: 16px; font-size: 13px; color: var(--accent-deep);
  background: rgba(255,255,255,.8); padding: 4px 12px; border-radius: 999px; font-weight: 600; }

/* ---------- Split ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.split.rev .split-media { order: -1; }
@media (max-width: 820px) { .split, .split.rev { grid-template-columns: 1fr; } .split.rev .split-media { order: 0; } }
.split h2 { margin-bottom: 16px; }
.split ul.feat { list-style: none; padding: 0; margin: 18px 0 0; }
.split ul.feat li { padding-left: 28px; position: relative; margin-bottom: 12px; color: var(--fg-soft); }
.split ul.feat li::before { content: "✓"; position: absolute; left: 0; top: 0; color: var(--good); font-weight: 800; }

/* ---------- Pricing ---------- */
.price-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; align-items: start; }
@media (max-width: 880px) { .price-grid { grid-template-columns: 1fr; max-width: 460px; margin: 0 auto; } }
.plan { border: 1px solid var(--border); border-radius: var(--radius); background: var(--bg);
  padding: 32px 28px; box-shadow: var(--shadow-sm); position: relative; }
.plan.featured { border-color: var(--accent); box-shadow: var(--shadow-lg); }
.plan.featured::before { content: "最受欢迎"; position: absolute; top: -13px; left: 50%; transform: translateX(-50%);
  background: var(--grad); color: #fff; font-size: 12px; font-weight: 700; padding: 4px 16px; border-radius: 999px; }
.plan h3 { font-size: 22px; }
.plan .who { color: var(--fg-mute); font-size: 14px; margin-bottom: 18px; }
.plan .price { font-size: 30px; font-weight: 800; margin-bottom: 4px; }
.plan .price small { font-size: 15px; font-weight: 500; color: var(--fg-mute); }
.plan .anchor { font-size: 13px; color: var(--accent-deep); background: var(--grad-soft); padding: 8px 12px;
  border-radius: var(--radius-sm); margin: 14px 0 20px; }
.plan ul { list-style: none; padding: 0; margin: 0 0 24px; }
.plan ul li { padding: 8px 0 8px 26px; position: relative; font-size: 14px; color: var(--fg-soft); border-bottom: 1px solid var(--border); }
.plan ul li::before { content: "✓"; position: absolute; left: 0; color: var(--good); font-weight: 800; }
.plan ul li.off { color: var(--fg-mute); }
.plan ul li.off::before { content: "—"; color: var(--border-strong); }

/* ---------- Calculator ---------- */
.calc { max-width: 720px; margin: 0 auto; background: var(--bg); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 32px; box-shadow: var(--shadow-md); }
.calc .row { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 18px; flex-wrap: wrap; }
.calc label { font-weight: 600; }
.calc input[type=range] { flex: 1 1 240px; accent-color: var(--accent); }
.calc .val { font-weight: 800; color: var(--accent-deep); min-width: 90px; text-align: right; }
.calc-out { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 24px; }
@media (max-width: 560px) { .calc-out { grid-template-columns: 1fr; } }
.calc-out .box { text-align: center; padding: 20px; border-radius: var(--radius-sm); }
.calc-out .box.bad { background: rgba(220,38,38,.08); }
.calc-out .box.good { background: rgba(22,163,74,.08); }
.calc-out .box .t { font-size: 13px; color: var(--fg-mute); }
.calc-out .box .v { font-size: 28px; font-weight: 800; margin-top: 4px; }
.calc-out .box.bad .v { color: var(--bad); }
.calc-out .box.good .v { color: var(--good); }

/* ---------- FAQ ---------- */
.faq { max-width: 820px; margin: 0 auto; }
.faq details { border: 1px solid var(--border); border-radius: var(--radius-sm); margin-bottom: 12px; background: var(--bg); padding: 0 20px; }
.faq summary { cursor: pointer; font-weight: 600; padding: 18px 0; list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-size: 22px; color: var(--accent); font-weight: 400; transition: transform .2s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { color: var(--fg-mute); padding: 0 0 18px; margin: 0; font-size: 15px; }

/* ---------- CTA band ---------- */
.cta-band { background: var(--grad-deep); color: #fff; border-radius: 26px; padding: 56px 40px; text-align: center;
  box-shadow: var(--shadow-lg); position: relative; overflow: hidden; }
.cta-band::after { content: ""; position: absolute; inset: 0; background:
  radial-gradient(40% 80% at 12% 0%, rgba(255,255,255,.18), transparent 60%),
  radial-gradient(40% 80% at 90% 100%, rgba(255,255,255,.12), transparent 60%); pointer-events: none; }
.cta-band h2 { color: #fff; position: relative; }
.cta-band p { color: rgba(255,255,255,.92); font-size: 18px; max-width: 580px; margin: 0 auto 26px; position: relative; }
.cta-band .btn-ghost { background: #fff; color: var(--accent-deep); border-color: #fff; position: relative; }
.cta-band .btn-ghost:hover { color: var(--accent); }

/* ---------- Compliance note ---------- */
.note { font-size: 13px; color: var(--fg-mute); background: var(--bg-mute);
  border-left: 3px solid var(--accent); padding: 14px 18px; border-radius: 8px; }

/* ---------- Timeline ---------- */
.timeline { max-width: 760px; margin: 0 auto; }
.tl-item { display: flex; gap: 20px; padding-bottom: 30px; position: relative; }
.tl-item:not(:last-child)::before { content: ""; position: absolute; left: 19px; top: 40px; bottom: 0; width: 2px; background: var(--border); }
.tl-item .tl-dot { flex: 0 0 40px; height: 40px; border-radius: 50%; background: var(--grad-soft);
  color: var(--accent-deep); display: grid; place-items: center; font-weight: 800; }
.tl-item .tl-body { flex: 1; }
.tl-item .tl-body h4 { margin: 6px 0 4px; }
.tl-item .tl-body p { color: var(--fg-mute); font-size: 15px; margin: 0; }
.badge { font-size: 11px; font-weight: 700; padding: 2px 9px; border-radius: 999px; margin-left: 8px; vertical-align: middle; }
.badge.live { background: rgba(22,163,74,.13); color: var(--good); }
.badge.beta { background: rgba(225,29,72,.12); color: var(--accent-warn); }
.badge.plan { background: var(--bg-mute); color: var(--fg-mute); }

/* ---------- Prism callout ---------- */
.prism-call { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center;
  background: var(--grad-soft); border: 1px solid var(--border); border-radius: 24px; padding: 44px; }
@media (max-width: 820px) { .prism-call { grid-template-columns: 1fr; } }
.prism-call .spectrum { height: 180px; border-radius: var(--radius); background:
  linear-gradient(120deg, #f43f5e, #f97316 40%, #f59e0b 70%, #fde047);
  display: grid; place-items: center; color: #fff; font-weight: 800; font-size: 22px; letter-spacing: .1em;
  box-shadow: var(--shadow-md); }

/* ---------- Footer ---------- */
.site-footer { background: var(--bg-soft); border-top: 1px solid var(--border); padding: 56px 0 28px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 32px; }
@media (max-width: 760px) { .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; } }
.footer-grid h5 { font-size: 14px; margin: 0 0 14px; color: var(--fg); }
.footer-grid a { display: block; color: var(--fg-mute); font-size: 14px; margin-bottom: 9px; }
.footer-grid a:hover { color: var(--accent-deep); }
.footer-brand p { color: var(--fg-mute); font-size: 14px; max-width: 280px; }
.footer-bottom { border-top: 1px solid var(--border); margin-top: 36px; padding-top: 20px;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; font-size: 13px; color: var(--fg-mute); }

/* ---------- Modal ---------- */
.modal-mask { position: fixed; inset: 0; background: rgba(42,26,18,.55); backdrop-filter: blur(4px);
  display: none; place-items: center; z-index: 100; padding: 20px; }
.modal-mask.open { display: grid; }
.modal { background: var(--bg); border-radius: 22px; max-width: 420px; width: 100%; padding: 36px 32px;
  text-align: center; box-shadow: var(--shadow-lg); position: relative; }
.modal h3 { margin-bottom: 8px; }
.modal p { color: var(--fg-mute); font-size: 14px; }
.modal .qr { width: 200px; height: 200px; margin: 18px auto; border-radius: 14px; border: 1px dashed var(--border-strong);
  background: var(--bg-soft); display: grid; place-items: center; color: var(--fg-mute); font-size: 13px; }
.modal .close { position: absolute; top: 14px; right: 16px; background: none; border: 0; font-size: 24px; cursor: pointer; color: var(--fg-mute); line-height: 1; }
.modal .wx { font-weight: 700; color: var(--fg); margin-top: 4px; }

/* ---------- Reveal ---------- */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ---------- Page hero ---------- */
.page-hero { padding: 66px 0 42px; text-align: center; position: relative; overflow: hidden; }
.page-hero::before { content: ""; position: absolute; inset: 0; z-index: -1; background:
  radial-gradient(50% 80% at 20% 0%, rgba(251,113,133,.16), transparent 60%),
  radial-gradient(50% 80% at 85% 0%, rgba(245,158,11,.16), transparent 60%); }
.page-hero h1 { font-size: clamp(28px, 4vw, 44px); }
.page-hero p { font-size: 18px; color: var(--fg-soft); max-width: 660px; margin: 12px auto 0; }

/* back-to-top */
.to-top { position: fixed; right: 24px; bottom: 24px; width: 48px; height: 48px; border-radius: 50%;
  background: var(--grad); color: #fff; border: 0; cursor: pointer; box-shadow: var(--shadow-lg);
  display: grid; place-items: center; font-size: 20px; z-index: 40;
  opacity: 0; visibility: hidden; transform: translateY(10px); transition: opacity .25s, transform .25s, visibility .25s; }
.to-top.show { opacity: 1; visibility: visible; transform: none; }
.to-top:hover { transform: translateY(-2px); }

/* ============================================================
   0607 改版新增组件
   ============================================================ */

/* ---- 品牌 logo（圆形）---- */
.brand .logo img { width: 100%; height: 100%; object-fit: cover; }

/* ---- Hero 高亮卖点（四个一行）---- */
.hero-highlights { display: flex; flex-wrap: nowrap; gap: 10px; justify-content: center; margin-top: 4px; }
.hero-highlights .hl { display: inline-flex; align-items: center; gap: 8px; font-size: clamp(12px, 1.32vw, 14.5px);
  font-weight: 700; color: var(--fg); background: var(--bg); border: 1px solid var(--border-strong);
  padding: 9px 14px; border-radius: 999px; box-shadow: var(--shadow-sm); white-space: nowrap; }
.hero-highlights .hl i { width: 8px; height: 8px; border-radius: 50%; background: var(--grad); flex: none; }
@media (max-width: 920px) { .hero-highlights { flex-wrap: wrap; } }
.hero-sub { font-size: clamp(14px, 1.6vw, 16px); color: var(--fg-soft); margin: 18px auto 0; max-width: 880px; }
.hero-sub b { color: var(--accent-deep); }

/* ---- 滚动平台条（第一版风格，更小 + 官方风格彩色 logo 标记）---- */
.marquee .item { font-size: 16px; gap: 10px; }
.mq-logo { width: 26px; height: 26px; border-radius: 50%; display: inline-grid; place-items: center;
  color: #fff; font-weight: 800; font-size: 13px; flex: none; }
.mq-logo img { width: 100%; height: 100%; object-fit: contain; border-radius: 50%; }
.mq-logo.xhs { background: #ff2741; } .mq-logo.dy { background: #111; } .mq-logo.sph { background: #07c160; }
.mq-logo.ks { background: #ff7000; } .mq-logo.zh { background: #1772f6; } .mq-logo.bz { background: #fb7299; }

/* ---- 单行标题辅助 ---- */
.section-head.wide { max-width: 960px; }
h2.oneline { white-space: nowrap; }
@media (max-width: 820px) { h2.oneline { white-space: normal; } }

/* ---- Prism 棱镜 logo ---- */
.prism-call .spectrum img { width: 92px; height: 92px; object-fit: contain; margin-bottom: 12px;
  filter: drop-shadow(0 8px 20px rgba(0,0,0,.25)); }

/* ---- 平台展示（更大 + 图标网格）---- */
.platforms { display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; }
@media (max-width: 900px) { .platforms { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 520px) { .platforms { grid-template-columns: repeat(2, 1fr); } }
.platforms .pf { display: flex; flex-direction: column; align-items: center; gap: 10px; padding: 26px 12px;
  border: 1px solid var(--border); border-radius: var(--radius); background: var(--bg); box-shadow: var(--shadow-sm);
  transition: transform .2s, box-shadow .2s; }
.platforms .pf:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.platforms .pf .pf-ico { width: 56px; height: 56px; border-radius: 16px; display: grid; place-items: center;
  font-size: 30px; color: #fff; }
.platforms .pf b { font-size: 16px; }
.platforms .pf small { color: var(--fg-mute); font-size: 12px; }
.pf-xhs { background: #ff2741; } .pf-dy { background: #111; } .pf-sph { background: #fa9d3b; }
.pf-ks { background: #ff7000; } .pf-zh { background: #1772f6; } .pf-bz { background: #fb7299; }

/* ---- 统一图片框（裁剪缩放，区域大小一致，不留白）---- */
.media { border-radius: var(--radius); overflow: hidden; background: var(--bg-mute); border: 1px solid var(--border); }
.media img { width: 100%; height: 100%; object-fit: cover; display: block; }
.ar-16-10 { aspect-ratio: 16 / 10; } .ar-16-9 { aspect-ratio: 16 / 9; }
.ar-4-3 { aspect-ratio: 4 / 3; } .ar-3-4 { aspect-ratio: 3 / 4; } .ar-9-16 { aspect-ratio: 9 / 16; }
.media.contain { background: #0e0e12; } .media.contain img { object-fit: contain; }

/* 痛点卡：图片在上，区域统一 */
.pain-card { padding: 0; overflow: hidden; }
.pain-card .media { border-radius: 0; border: 0; border-bottom: 1px solid var(--border); }
.pain-card .pain-body { padding: 22px 24px 26px; }
.pain-card .q { font-size: 19px; font-weight: 700; margin-bottom: 8px; }
.pain-card .pain-body p { color: var(--fg-mute); font-size: 14.5px; margin: 0; }

/* gallery 用真图 */
.gshot .frame { padding: 0; display: block; }
.gshot .frame img { width: 100%; height: 100%; object-fit: cover; }
.gshot .frame.ph { aspect-ratio: 16 / 10; }

/* 可点击放大 */
.zoomable { position: relative; cursor: zoom-in; }
.zoomable::after { content: "⤢ 点击放大"; position: absolute; right: 10px; bottom: 10px; font-size: 12px; font-weight: 700;
  color: #fff; background: rgba(0,0,0,.55); padding: 5px 11px; border-radius: 999px; pointer-events: none; }

/* 灯箱 */
.lightbox { position: fixed; inset: 0; background: rgba(20,10,4,.88); z-index: 200; display: none;
  place-items: center; padding: 28px; cursor: zoom-out; }
.lightbox.open { display: grid; }
.lightbox img { max-width: 96vw; max-height: 92vh; border-radius: 12px; box-shadow: var(--shadow-lg); }
.lightbox .lb-close { position: absolute; top: 18px; right: 24px; color: #fff; font-size: 34px; cursor: pointer; line-height: 1; }

/* ---- 视频海报（真图 + 播放按钮）---- */
.video-ph img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: 0; }
.video-ph { cursor: pointer; }
.video-ph::after { content: ""; position: absolute; inset: 0; background: rgba(20,10,4,.28); z-index: 1; }
.video-ph .play { position: relative; z-index: 2; }
.video-ph .vlabel { z-index: 3; }

/* ---- 投流成本曲线 ---- */
.cost-chart { max-width: 760px; margin: 0 auto; background: var(--bg); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 26px 28px 18px; box-shadow: var(--shadow-sm); }
.cost-chart svg { width: 100%; height: auto; display: block; }

/* ---- 行业 / 好评合并卡 ---- */
.ind-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
@media (max-width: 1000px) { .ind-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .ind-grid { grid-template-columns: 1fr; } }
.ind-card { border: 1px solid var(--border); border-radius: var(--radius); background: var(--bg);
  padding: 22px; box-shadow: var(--shadow-sm); transition: transform .2s, box-shadow .2s; display: flex; flex-direction: column; gap: 10px; }
.ind-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.ind-card .ind-name { font-size: 18px; font-weight: 800; color: var(--accent-deep); display: flex; align-items: center; gap: 8px; }
.ind-card .ind-name .e { font-size: 22px; }
.ind-card .stars { color: var(--gold); font-size: 14px; letter-spacing: 1px; }
.ind-card blockquote { margin: 0; font-size: 14.5px; color: var(--fg-soft); flex: 1; }
.ind-card .who { display: flex; align-items: center; gap: 10px; }
.ind-card .avatar { width: 36px; height: 36px; border-radius: 50%; background: var(--grad);
  display: grid; place-items: center; color: #fff; font-weight: 700; font-size: 15px; }
.ind-card .who b { font-size: 14px; display: block; } .ind-card .who small { color: var(--fg-mute); font-size: 12px; }
.ind-card .kpi { align-self: flex-start; font-weight: 700; color: var(--accent-deep); font-size: 13px;
  background: var(--grad-soft); padding: 4px 12px; border-radius: 999px; }

/* ---- 强调模块（看后台演示，更大 + 特效）---- */
.module.feature { background: var(--grad-soft); border-color: var(--accent); position: relative; overflow: hidden; }
.module.feature::before { content: ""; position: absolute; width: 200px; height: 200px; border-radius: 50%;
  background: var(--grad); filter: blur(70px); opacity: .18; right: -50px; top: -50px; }
.btn-pulse { position: relative; animation: btnpulse 2s infinite; }
@keyframes btnpulse { 0% { box-shadow: 0 0 0 0 rgba(234,88,12,.45); } 70% { box-shadow: 0 0 0 14px rgba(234,88,12,0); } 100% { box-shadow: 0 0 0 0 rgba(234,88,12,0); } }

/* ---- 锁定 / 暂不公开按钮 ---- */
.btn-locked { background: var(--bg-mute); color: var(--fg-mute); border-color: var(--border-strong);
  cursor: not-allowed; pointer-events: none; }
.btn-locked::before { content: "🔒"; margin-right: 4px; }

/* ---- 大号数据看板图（cases 顶部）---- */
.board-shot { border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-md); background: #0e0e12; }
.board-shot img { width: 100%; display: block; }

/* ---- 弹窗放大 + 左右双边框区 ---- */
.modal.modal-wide { max-width: 760px; text-align: left; padding: 32px; }
.modal.modal-wide > h3 { text-align: center; }
.modal.modal-wide > .sub { text-align: center; color: var(--fg-mute); font-size: 14px; margin-bottom: 22px; }
.modal-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
@media (max-width: 640px) { .modal-cols { grid-template-columns: 1fr; } }
.m-box { border: 1px solid var(--border-strong); border-radius: var(--radius); padding: 22px; }
.m-box h4 { margin: 0 0 14px; font-size: 16px; text-align: center; }
.m-qr { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 12px; background: var(--bg-soft); }
.m-qr img { width: 190px; height: 190px; border-radius: 12px; object-fit: cover; }
.m-qr .wx { font-weight: 700; }
.m-form label { display: block; font-size: 13px; font-weight: 600; margin: 0 0 5px; color: var(--fg-soft); }
.m-form .fld { margin-bottom: 13px; }
.m-form input { width: 100%; padding: 10px 13px; border: 1px solid var(--border-strong); border-radius: 10px;
  font-size: 14px; font-family: inherit; background: var(--bg); color: var(--fg); }
.m-form input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(234,88,12,.12); }
.m-form .form-msg { font-size: 13px; margin: 8px 0 0; min-height: 18px; }
.m-form .form-msg.ok { color: var(--good); font-weight: 600; }
.m-form .form-msg.err { color: var(--bad); }

/* 视频提示弹窗里的二维码复用 m-qr 风格已够用 */