/* 意播 首页 · premium 设计系统（保留既有视觉，适配企业产品宣传与有范围试点） */
:root {
  --bg: #f7fbff; --surface: #ffffff; --ink: #07142e; --muted: #66728a; --line: rgba(37, 86, 160, 0.13);
  --blue: #0758ff; --blue2: #0a7cff; --cyan: #4edfff; --deep: #071b5d; --green: #0ea66b;
  --shadow: 0 24px 70px rgba(9, 51, 145, 0.12); --shadow-soft: 0 16px 50px rgba(13, 57, 143, 0.08);
  --radius: 28px; --container: 1240px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
  color: var(--ink);
  background: linear-gradient(180deg, #f6fbff 0%, #fff 42%, #f7fbff 100%);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
body.modal-open { overflow: hidden; }
a { text-decoration: none; color: inherit; }
button, input, select, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
img { max-width: 100%; display: block; }
.container { width: min(var(--container), calc(100% - 56px)); margin: 0 auto; }
.section { padding: 118px 0; }
.skip-link { position: fixed; left: 18px; top: 0; transform: translateY(calc(-100% - 8px)); z-index: 3000; padding: 12px 16px; border-radius: 10px; color: #fff; background: var(--blue); }
.skip-link:focus { top: 18px; transform: none; }
:focus-visible { outline: 3px solid #0758ff; outline-offset: 3px; }

/* ---------- header ---------- */
.site-header { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; transition: 0.35s ease; background: rgba(247, 251, 255, 0.62); backdrop-filter: blur(20px); border-bottom: 1px solid transparent; }
.site-header.is-scrolled { background: rgba(255, 255, 255, 0.88); border-bottom-color: rgba(42, 91, 172, 0.1); box-shadow: 0 10px 36px rgba(11, 48, 111, 0.08); }
.header-inner { height: auto; min-height: 74px; display: flex; flex-wrap: wrap; align-items: center; gap: 26px; }
.brand { display: flex; align-items: center; gap: 12px; white-space: nowrap; }
.brand-mark { width: 36px; height: 36px; object-fit: contain; }
.brand > span { display: grid; gap: 1px; }
.brand strong { font-size: 18px; font-weight: 900; letter-spacing: -0.03em; }
.brand small { color: var(--muted); font-size: 11px; font-weight: 700; }
.nav { margin-left: auto; display: flex; align-items: center; gap: 6px; padding: 6px; border: 1px solid rgba(44, 87, 160, 0.08); background: rgba(255, 255, 255, 0.48); border-radius: 999px; }
.nav a { font-size: 14px; font-weight: 700; color: #25334e; padding: 10px 15px; border-radius: 999px; transition: 0.25s; }
@media (min-width: 1081px) {
  .nav[data-nav] { flex-wrap: wrap; min-width: 0; }
  .nav[data-nav] > a { white-space: nowrap; flex-shrink: 0; }
}
.nav a:hover { color: var(--blue); background: rgba(7, 88, 255, 0.08); }
.header-actions { display: flex; gap: 10px; }
.btn { border: 0; cursor: pointer; min-height: 42px; padding: 0 20px; border-radius: 14px; font-weight: 800; font-size: 14px; display: inline-flex; align-items: center; justify-content: center; gap: 8px; transition: 0.25s ease; white-space: nowrap; }
.btn-primary { color: #fff; background: linear-gradient(135deg, #0b67ff, #0a42d9); box-shadow: 0 12px 28px rgba(6, 75, 220, 0.26), inset 0 1px 0 rgba(255, 255, 255, 0.32); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 18px 38px rgba(6, 75, 220, 0.34); }
.btn-primary:disabled { opacity: 0.58; cursor: wait; transform: none; }
.btn-ghost { color: #0b45c8; background: rgba(255, 255, 255, 0.74); border: 1px solid rgba(7, 88, 255, 0.24); box-shadow: 0 10px 26px rgba(13, 58, 150, 0.07); }
.btn-ghost:hover, .btn-light:hover { transform: translateY(-2px); border-color: rgba(7, 88, 255, 0.38); }
.btn-light { color: #0b45c8; background: #fff; border: 1px solid rgba(7, 88, 255, 0.16); box-shadow: 0 12px 28px rgba(12, 51, 128, 0.08); }
.btn-outline-light { color: #fff; border: 1px solid rgba(255, 255, 255, 0.38); background: rgba(255, 255, 255, 0.08); }
.btn-xl { min-height: 54px; padding: 0 28px; border-radius: 16px; font-size: 16px; }
.btn i { font-style: normal; font-size: 18px; }
.menu-toggle { display: none; background: transparent; border: 0; padding: 8px; }
.menu-toggle span { display: block; width: 24px; height: 2px; background: #0a255c; margin: 5px 0; border-radius: 4px; }

/* ---------- hero ---------- */
.hero { position: relative; padding: calc(150px + max(var(--header-growth, 0px), max(0px, calc(12em - 192px)))) 0 78px; overflow: hidden; background: radial-gradient(circle at 66% 24%, rgba(73, 164, 255, 0.22), transparent 32%), linear-gradient(180deg, #f4f9ff 0%, #edf6ff 52%, #fff 100%); }
.hero:before { content: ""; position: absolute; inset: 0; background-image: linear-gradient(rgba(14, 91, 220, 0.055) 1px, transparent 1px), linear-gradient(90deg, rgba(14, 91, 220, 0.05) 1px, transparent 1px); background-size: 58px 58px; mask-image: linear-gradient(180deg, #000 0%, transparent 74%); }
.hero-bg i { position: absolute; border-radius: 999px; filter: blur(14px); opacity: 0.72; }
.hero-bg i:nth-child(1) { width: 520px; height: 520px; background: radial-gradient(circle, rgba(33, 121, 255, 0.2), transparent 66%); right: 12%; top: 118px; }
.hero-bg i:nth-child(2) { width: 760px; height: 220px; background: linear-gradient(90deg, transparent, rgba(75, 210, 255, 0.18), transparent); right: -160px; top: 360px; transform: rotate(-12deg); }
.hero-bg i:nth-child(3) { width: 520px; height: 520px; background: radial-gradient(circle, rgba(116, 228, 255, 0.16), transparent 70%); left: -240px; bottom: 20px; }
.hero-inner { position: relative; display: grid; grid-template-columns: 1.05fr 0.95fr; align-items: center; gap: 44px; min-height: 540px; }
.eyebrow { display: inline-flex; align-items: center; gap: 10px; padding: 9px 14px; border: 1px solid rgba(7, 88, 255, 0.16); border-radius: 999px; background: rgba(255, 255, 255, 0.72); font-weight: 800; color: #0e58d7; font-size: 14px; box-shadow: 0 10px 26px rgba(14, 82, 190, 0.08); }
.eyebrow span { width: 8px; height: 8px; border-radius: 999px; background: linear-gradient(135deg, var(--blue), var(--cyan)); box-shadow: 0 0 0 5px rgba(8, 105, 255, 0.1); }
.hero h1 { margin: 28px 0 24px; font-size: 60px; line-height: 1.08; letter-spacing: -0.08em; font-weight: 950; }
.hero h1 span { display: inline-block; background: linear-gradient(90deg, #0c4fff, #28a7ff); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-lead { max-width: 560px; margin: 0; color: #526078; font-size: 18px; line-height: 1.9; font-weight: 520; }
.hero-actions { display: flex; gap: 16px; margin-top: 34px; }
.scope-note { margin: 20px 0 0; max-width: 520px; color: #5f6c84; font-size: 13px; line-height: 1.7; font-weight: 600; }
.hero-visual { position: relative; display: flex; justify-content: center; align-items: center; min-height: 500px; }
.visual-wrap { position: relative; width: min(720px, 100%); container-type: inline-size; animation: float 5.4s ease-in-out infinite; }
.visual-wrap picture { width: 100%; filter: drop-shadow(0 40px 70px rgba(0, 84, 190, 0.18)); }
.visual-brand { position: absolute; left: 35.8%; top: 26.2%; width: 26.2%; height: 20.4%; display: grid; align-content: center; justify-items: center; gap: 4%; border-radius: 8%; background: linear-gradient(150deg, #0a3fd0 0%, #0b62ff 58%, #1e8dff 100%); box-shadow: inset 0 0 2cqw rgba(255, 255, 255, 0.22), 0 0 3cqw rgba(35, 140, 255, 0.5); transform: perspective(70cqw) rotateX(6deg); color: #fff; text-align: center; }
.visual-brand strong { font-size: 3.4cqw; font-weight: 900; letter-spacing: 0.02em; text-shadow: 0 0.3cqw 1cqw rgba(3, 30, 90, 0.5); }
.visual-brand em { font-style: normal; font-size: 1.35cqw; font-weight: 700; color: rgba(255, 255, 255, 0.86); letter-spacing: 0.08em; }
.hero-visual:after { content: ""; position: absolute; width: 680px; height: 200px; bottom: 28px; border-radius: 50%; background: radial-gradient(ellipse, rgba(40, 150, 255, 0.18), transparent 64%); z-index: -1; }
.stats-shell { position: relative; display: grid; grid-template-columns: repeat(3, minmax(150px, max-content)) 1fr; gap: 0; align-items: center; padding: 24px 32px; margin-top: 30px; background: rgba(255, 255, 255, 0.84); border: 1px solid rgba(40, 91, 170, 0.12); border-radius: 22px; box-shadow: var(--shadow); backdrop-filter: blur(18px); }
.stat-card { padding: 0 30px; border-right: 1px solid rgba(40, 91, 170, 0.13); }
.stat-card:first-child { padding-left: 0; }
.stat-card span { display: block; font-size: 13px; color: #6a7890; font-weight: 800; }
.stat-card strong { display: block; margin-top: 6px; font-size: 27px; letter-spacing: -0.04em; color: #0d4eea; }
.stat-card small { display: block; margin-top: 6px; color: #66728a; }
.partner-strip { display: flex; align-items: center; justify-content: flex-end; gap: 20px; color: #5c6a80; font-size: 14px; flex-wrap: wrap; }
.partner-strip b { font-weight: 800; color: #526078; margin-right: 8px; }
.partner-strip em { font-style: normal; font-weight: 900; color: #55637d; }

/* ---------- sections ---------- */
.section-head { max-width: 780px; margin-bottom: 54px; }
.section-head.centered { text-align: center; margin-left: auto; margin-right: auto; }
.section-kicker { text-transform: uppercase; letter-spacing: 0.16em; font-size: 12px; font-weight: 900; color: #0a66f4; }
.section-head h2 { font-size: 42px; line-height: 1.18; letter-spacing: -0.06em; margin: 12px 0 16px; }
.section-head p { font-size: 17px; line-height: 1.8; color: #66728a; margin: 0; }
.section-head.centered p { text-wrap: balance; }

.problem-section { padding-top: 104px; }
.problem-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.problem-card { background: rgba(255, 255, 255, 0.82); border: 1px solid rgba(45, 92, 168, 0.1); border-radius: 26px; padding: 32px 32px 34px; box-shadow: var(--shadow-soft); transition: 0.32s; }
.problem-card:hover { transform: translateY(-8px); box-shadow: 0 28px 80px rgba(13, 74, 180, 0.15); }
.problem-icon { width: 100px; height: 100px; margin-bottom: 22px; display: flex; align-items: center; justify-content: center; border-radius: 26px; background: linear-gradient(180deg, rgba(243, 249, 255, 0.95), rgba(255, 255, 255, 0.72)); }
.problem-icon img { width: 108px; max-width: none; }
.problem-card h3 { font-size: 21px; margin: 0 0 12px; letter-spacing: -0.04em; }
.problem-card p { margin: 0; color: #66728a; line-height: 1.7; }

.system-section { padding-top: 104px; background: linear-gradient(180deg, #fff 0%, #f4f9ff 100%); }
.system-panel { display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; position: relative; padding: 28px; border: 1px solid rgba(21, 92, 204, 0.12); background-image: linear-gradient(rgba(14, 91, 220, 0.045) 1px, transparent 1px), linear-gradient(90deg, rgba(14, 91, 220, 0.045) 1px, transparent 1px), radial-gradient(circle at 20% 0%, rgba(73, 164, 255, 0.1), transparent 42%), linear-gradient(180deg, rgba(255, 255, 255, 0.9), rgba(243, 249, 255, 0.94)); background-size: 44px 44px, 44px 44px, auto, auto; border-radius: 32px; box-shadow: var(--shadow); }
.system-panel:before { content: ""; position: absolute; left: 70px; right: 70px; top: 73px; height: 2px; background: linear-gradient(90deg, transparent, #0b64ff, transparent); opacity: 0.22; }
.step { position: relative; z-index: 1; padding: 24px 18px 22px; background: rgba(255, 255, 255, 0.86); border: 1px solid rgba(52, 102, 180, 0.1); border-radius: 22px; text-align: center; min-height: 166px; transition: 0.3s; }
.step:hover { transform: translateY(-5px); border-color: rgba(11, 100, 255, 0.28); box-shadow: 0 18px 46px rgba(13, 74, 180, 0.14); }
.step b { width: 40px; height: 40px; margin: 0 auto 16px; display: flex; align-items: center; justify-content: center; border-radius: 50%; background: linear-gradient(135deg, #0b67ff, #5adfff); color: #fff; box-shadow: 0 12px 24px rgba(13, 97, 225, 0.22); }
.step strong { display: block; margin-bottom: 8px; font-size: 17px; }
.step span { display: block; color: #6a7890; font-size: 13px; line-height: 1.55; }

.capability-section { background: #f7fbff; }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.feature-card { position: relative; overflow: hidden; min-height: 470px; padding: 34px; border-radius: 30px; border: 1px solid rgba(44, 92, 170, 0.12); background: linear-gradient(145deg, #fff 0%, #ecf6ff 100%); box-shadow: var(--shadow-soft); transition: 0.35s; }
.feature-card.dark { background: linear-gradient(145deg, #061c68 0%, #0e48d2 100%); color: #fff; }
.feature-card:hover { transform: translateY(-9px); box-shadow: 0 34px 90px rgba(8, 74, 185, 0.18); }
.feature-copy { position: relative; z-index: 2; }
.feature-copy span { font-size: 12px; text-transform: uppercase; letter-spacing: 0.12em; color: #0d66ee; font-weight: 900; }
.feature-card.dark .feature-copy span, .feature-card.dark p { color: rgba(255, 255, 255, 0.72); }
.feature-copy h3 { font-size: 28px; margin: 10px 0 12px; letter-spacing: -0.05em; }
.feature-copy p { color: #59677e; line-height: 1.78; margin: 0; }
.feature-card picture { position: absolute; left: 18px; right: 18px; bottom: -16px; display: flex; justify-content: center; }
.feature-card picture img { width: 106%; max-width: 540px; filter: drop-shadow(0 20px 38px rgba(14, 82, 180, 0.18)); }

.scenario-section { background: #fff; }
.scenario-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.scenario-card { height: 260px; position: relative; border-radius: 26px; overflow: hidden; box-shadow: var(--shadow-soft); border: 1px solid rgba(35, 82, 157, 0.1); background: #dcecff; display: block; }
.scenario-card img { width: 100%; height: 100%; object-fit: cover; transition: 0.5s; }
.scenario-card:after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(4, 15, 44, 0.04), rgba(4, 21, 67, 0.76)); }
.scenario-card:hover img { transform: scale(1.06); }
.scenario-card div { position: absolute; z-index: 2; left: 24px; right: 20px; bottom: 22px; color: #fff; }
.scenario-card h3 { font-size: 22px; margin: 0 0 8px; }
.scenario-card p { margin: 0; padding-right: 48px; line-height: 1.55; color: rgba(255, 255, 255, 0.82); font-size: 14px; }
.scenario-card i { position: absolute; right: 0; bottom: 0; width: 38px; height: 38px; border-radius: 50%; display: flex; align-items: center; justify-content: center; background: rgba(255, 255, 255, 0.16); font-style: normal; border: 1px solid rgba(255, 255, 255, 0.25); }

/* ---------- 产品界面（真实工作台） ---------- */
.interface-section { background: linear-gradient(180deg, #f6fbff 0%, #fff 100%); }
.interface-stage { display: grid; grid-template-columns: 1.52fr 0.9fr; gap: 40px; align-items: center; }
.interface-desktop { position: relative; }
.product-window { position: relative; z-index: 1; padding: 8px; overflow: hidden; border: 1px solid rgba(27, 85, 172, 0.18); border-radius: 22px; background: rgba(255, 255, 255, 0.88); box-shadow: 0 42px 100px rgba(16, 72, 165, 0.2); transform: perspective(1400px) rotateY(-3deg) rotateX(1.5deg); }
.window-bar { height: 34px; padding: 0 10px; display: flex; align-items: center; gap: 6px; color: #8090a8; font-size: 10px; }
.window-bar span { width: 8px; height: 8px; border-radius: 50%; background: #d9e4f3; }
.window-bar span:first-child { background: #ff796f; }
.window-bar span:nth-child(2) { background: #ffc85a; }
.window-bar span:nth-child(3) { background: #49cf83; }
.window-bar b { margin-left: 7px; font-weight: 700; }
.live-console-frame { position: relative; width: 100%; min-height: 180px; overflow: hidden; border: 1px solid #e4edf8; border-radius: 14px; background: linear-gradient(135deg, #f4f8ff, #e9f1ff); }
.live-console-frame iframe { position: absolute; top: 0; left: 0; display: block; max-width: none; border: 0; background: #f5f8fc; transform-origin: top left; pointer-events: none; }
.live-console-mobile { border-radius: 24px; box-shadow: 0 24px 60px rgba(20, 70, 150, 0.16); }
.floating-result { position: absolute; z-index: 2; min-width: 230px; padding: 13px 16px; border: 1px solid rgba(24, 86, 180, 0.14); border-radius: 15px; background: rgba(255, 255, 255, 0.94); box-shadow: var(--shadow-soft); backdrop-filter: blur(12px); }
.floating-result small { display: block; color: var(--muted); font-size: 11px; font-weight: 700; }
.floating-result strong { display: block; margin-top: 5px; color: #1244a6; font-size: 13px; }
.result-one { left: -26px; bottom: -20px; }
.result-two { right: -14px; top: -18px; }
.interface-mobile { display: grid; gap: 18px; justify-items: center; }
.mobile-shot { width: 280px; margin: 0; padding: 10px; border: 1px solid rgba(37, 86, 160, 0.16); border-radius: 30px; background: #fff; box-shadow: 0 30px 80px rgba(16, 72, 165, 0.16); }
.mobile-shot figcaption { padding: 12px 9px 4px; color: var(--muted); font-size: 12px; line-height: 1.55; text-align: center; }
.interface-points { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.interface-points li { position: relative; padding-left: 26px; color: #43536e; font-size: 14px; line-height: 1.7; }
.interface-points li:before { content: "✓"; position: absolute; left: 0; color: #0a9f66; font-weight: 900; }

/* ---------- 试点范围与交付 ---------- */
.pricing-section { background: #fff; }
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.pricing-grid.credit-grid { grid-template-columns: repeat(3, 1fr); gap: 24px; }
.price-card { position: relative; padding: 34px; border-radius: 30px; background: #fff; border: 1px solid rgba(40, 91, 170, 0.13); box-shadow: var(--shadow-soft); display: flex; flex-direction: column; }
.credit-grid .price-card { padding: 26px 20px; border-radius: 24px; }
.price-card.featured { background: linear-gradient(145deg, #08287d, #0a66ff); color: #fff; transform: translateY(-12px); box-shadow: 0 34px 90px rgba(6, 78, 220, 0.24); }
.price-card small { position: absolute; right: 20px; top: 20px; background: #fff; color: #0b5cff; padding: 6px 11px; border-radius: 999px; font-weight: 900; font-size: 12px; }
.price-card span { font-weight: 900; color: #0a66f4; }
.price-card.featured span, .price-card.featured p { color: rgba(255, 255, 255, 0.78); }
.price-card h3 { font-size: 36px; margin: 16px 0 10px; letter-spacing: -0.06em; }
.credit-grid .price-card h3 { font-size: 31px; }
.price-card p { color: #66728a; margin: 0; font-size: 13px; line-height: 1.6; }
.price-card ul { list-style: none; padding: 0; margin: 20px 0 24px; display: grid; gap: 11px; flex: 1; }
.price-card li { font-size: 13px; line-height: 1.5; }
.price-card li:before { content: "✓"; color: #0a66f4; font-weight: 900; margin-right: 9px; }
.price-card.featured li:before { color: #6fe6ff; }
.deduct-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-top: 34px; }
.deduct-cards article { padding: 24px; border-radius: 22px; background: linear-gradient(180deg, #f6faff, #fff); border: 1px solid rgba(37, 86, 160, 0.11); box-shadow: var(--shadow-soft); }
.deduct-cards b { display: block; color: #0a66f4; font-size: 12px; letter-spacing: 0.08em; }
.deduct-cards strong { display: block; font-size: 22px; margin: 10px 0 8px; letter-spacing: -0.04em; }
.deduct-cards span { color: #66728a; line-height: 1.65; font-size: 13px; }
.pricing-boundary { max-width: 900px; margin: 30px auto 0; color: #5f6c84; font-size: 13px; line-height: 1.7; text-align: center; }
.pricing-more { margin-top: 20px; color: var(--blue); font-weight: 820; text-align: center; }
.pricing-more a:hover { text-decoration: underline; }

/* ---------- why ---------- */
.why-section { background: linear-gradient(180deg, #f7fbff, #fff); }
.why-grid { display: grid; grid-template-columns: 0.88fr 1.12fr; gap: 70px; align-items: start; }
.why-cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.why-cards article { padding: 28px; border-radius: 24px; background: #fff; border: 1px solid rgba(37, 86, 160, 0.11); box-shadow: var(--shadow-soft); }
.why-cards b { display: block; color: #0a66f4; margin-bottom: 22px; }
.why-cards strong { display: block; font-size: 20px; margin-bottom: 10px; }
.why-cards span { color: #66728a; line-height: 1.7; }

/* ---------- FAQ ---------- */
.faq-section { background: #fff; padding-top: 0; }
.faq-grid { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: 64px; align-items: start; }
.faq-list { display: grid; gap: 12px; }
.faq-list details { overflow: hidden; border: 1px solid var(--line); border-radius: 18px; background: #fff; box-shadow: 0 8px 30px rgba(24, 70, 145, 0.05); }
.faq-list summary { padding: 20px 52px 20px 22px; cursor: pointer; font-size: 16px; font-weight: 820; list-style: none; position: relative; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; position: absolute; top: 14px; right: 20px; color: var(--blue); font-size: 26px; font-weight: 400; }
.faq-list details[open] summary::after { content: "–"; }
.faq-list details p { margin: 0; padding: 0 22px 22px; color: var(--muted); line-height: 1.75; }
.text-link { display: inline-flex; margin-top: 22px; color: var(--blue); font-weight: 820; }
.text-link:hover { text-decoration: underline; }

/* ---------- CTA / footer ---------- */
.final-cta { position: relative; overflow: hidden; padding: 86px 0; background: radial-gradient(circle at 82% 45%, rgba(98, 216, 255, 0.24), transparent 28%), linear-gradient(135deg, #061746 0%, #0b45d6 64%, #0d75ff 100%); color: #fff; }
.final-cta:before { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.08), transparent); transform: skewY(-6deg); }
.cta-inner { position: relative; display: flex; align-items: center; justify-content: space-between; gap: 42px; }
.cta-copy > span { color: #8be8ff; font-size: 12px; font-weight: 900; letter-spacing: 0.12em; }
.cta-copy h2 { font-size: 42px; line-height: 1.2; margin: 12px 0 14px; letter-spacing: -0.05em; }
.cta-copy p { font-size: 18px; color: rgba(255, 255, 255, 0.74); margin: 0 0 28px; max-width: 640px; line-height: 1.75; }
.cta-copy div { display: flex; gap: 14px; }
.cta-visual { width: 230px; filter: drop-shadow(0 36px 58px rgba(0, 0, 0, 0.2)); animation: float 5.6s ease-in-out infinite; }
.site-footer { padding: 60px 0 28px; background: #071327; color: rgba(255, 255, 255, 0.76); }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 48px; }
.footer-brand .brand-mark { width: 38px; margin-bottom: 14px; }
.footer-brand strong { display: block; color: #fff; font-size: 18px; }
.footer-brand small { display: block; margin-top: 4px; color: rgba(255, 255, 255, 0.5); font-size: 12px; }
.footer-brand p { max-width: 360px; line-height: 1.7; color: rgba(255, 255, 255, 0.58); }
.site-footer h3 { color: #fff; margin: 0 0 16px; font-size: 15px; }
.site-footer a { display: block; margin: 10px 0; color: rgba(255, 255, 255, 0.58); }
.site-footer a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.1); margin-top: 34px; padding-top: 22px; font-size: 13px; color: rgba(255, 255, 255, 0.58); display: flex; justify-content: space-between; gap: 18px; flex-wrap: wrap; }

/* ---------- 移动端吸底 CTA ---------- */
.mobile-cta { display: none; }

/* ---------- modal + 表单 ---------- */
.modal { position: fixed; inset: 0; z-index: 2000; display: none; overflow-y: auto; padding: 7vh 0 40px; }
.modal.is-open { display: block; }
.modal-backdrop { position: fixed; inset: 0; background: rgba(5, 15, 40, 0.5); backdrop-filter: blur(8px); }
.modal-panel { position: relative; width: min(650px, calc(100% - 32px)); margin: 0 auto; padding: 34px; border-radius: 28px; background: #fff; box-shadow: 0 40px 120px rgba(0, 0, 0, 0.28); }
.modal-close { position: absolute; right: 18px; top: 16px; border: 0; background: #f2f6ff; width: 36px; height: 36px; border-radius: 50%; font-size: 22px; cursor: pointer; color: #36506e; }
.modal-kicker { color: #087848; font-size: 11px; font-weight: 900; letter-spacing: 0.1em; }
.modal-panel h2 { margin: 9px 0 8px; font-size: 30px; letter-spacing: -0.04em; }
.modal-panel > p { margin: 0 0 21px; color: var(--muted); line-height: 1.65; }
.lead-form { display: grid; gap: 13px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.lead-form label { display: grid; gap: 7px; }
.lead-form label > span { color: #344763; font-size: 12px; font-weight: 780; }
.lead-form input, .lead-form select, .lead-form textarea { width: 100%; border: 1px solid rgba(37, 86, 160, 0.16); border-radius: 13px; background: #fbfdff; color: var(--ink); font-size: 14px; }
.lead-form input, .lead-form select { height: 47px; padding: 0 13px; }
.lead-form textarea { min-height: 84px; padding: 12px 13px; resize: vertical; }
.lead-form input:focus, .lead-form select:focus, .lead-form textarea:focus { border-color: var(--blue); box-shadow: 0 0 0 4px rgba(7, 88, 255, 0.08); outline: 0; }
.lead-form .consent { display: flex; align-items: flex-start; gap: 9px; }
.lead-form .consent input { width: 17px; height: 17px; margin-top: 1px; accent-color: var(--blue); }
.lead-form .consent span { font-weight: 500; line-height: 1.5; font-size: 13px; color: #43536e; }
.lead-form .consent a { color: var(--blue); text-decoration: underline; }
.honeypot { position: absolute !important; left: -10000px !important; width: 1px !important; height: 1px !important; overflow: hidden !important; }
.submit-button { margin-top: 4px; }
.form-status { min-height: 19px; color: var(--muted); font-size: 12px; text-align: center; }
.form-status.error { color: #ca2d39; }
.lead-form .form-status { line-height: 1.65; overflow-wrap: anywhere; scroll-margin-block: 24px; }
.lead-form .form-status.field-feedback { min-height: 0; margin: 0; text-align: left; }
.lead-form .form-status:focus-visible { outline: 2px solid var(--blue); outline-offset: 4px; border-radius: 4px; }
.form-success { padding: 28px; border: 1px solid rgba(14, 166, 107, 0.2); border-radius: 18px; background: #f0fff8; text-align: center; }
.form-success > strong { display: block; color: #087b50; font-size: 21px; }
.form-success p { color: #4e665d; line-height: 1.65; }
.form-success a { color: var(--blue); font-weight: 800; }

/* ---------- 动效 ---------- */
.reveal { opacity: 1; transform: none; }
.reveal.is-visible { opacity: 1; transform: none; }
.delay-1 { transition-delay: 0.08s; }
.delay-2 { transition-delay: 0.16s; }
.delay-3 { transition-delay: 0.24s; }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }

/* ---------- 响应式 ---------- */
@media (max-width: 1180px) {
  .pricing-grid.credit-grid { grid-template-columns: repeat(2, 1fr); }
  .credit-grid .price-card:last-child { grid-column: 1 / -1; }
  .credit-grid .price-card.featured { transform: none; }
  .system-panel { grid-template-columns: repeat(3, 1fr); }
  .system-panel:before { display: none; }
}

@media (max-width: 1080px) {
  .nav, .header-actions { display: none; }
  .menu-toggle { display: block; margin-left: auto; }
  .nav.is-open { display: flex; position: absolute; left: 20px; right: 20px; top: calc(100% + 4px); flex-direction: column; background: #fff; border-radius: 20px; box-shadow: var(--shadow); padding: 18px; }
  .hero { padding-top: calc(120px + max(var(--header-growth, 0px), max(0px, calc(12em - 192px)))); }
  .hero-inner { grid-template-columns: 1fr; }
  .hero h1 { font-size: 52px; }
  .hero-visual { min-height: 0; }
  .stats-shell, .feature-grid, .why-grid, .footer-grid { grid-template-columns: 1fr; }
  .stats-shell { gap: 18px; }
  .stat-card { border-right: 0; border-bottom: 1px solid rgba(40, 91, 170, 0.13); padding: 0 0 16px; }
  .partner-strip { justify-content: flex-start; flex-wrap: wrap; }
  .scenario-grid { grid-template-columns: repeat(2, 1fr); }
  .scenario-card { height: 280px; }
  .price-card.featured { transform: none; }
  .interface-stage { grid-template-columns: 1fr; }
  .floating-result { display: none; }
  .deduct-cards { grid-template-columns: repeat(2, 1fr); }
  .faq-grid { grid-template-columns: 1fr; gap: 30px; }
  .cta-inner { flex-direction: column; text-align: center; }
  .cta-copy div { justify-content: center; }
  .why-cards { grid-template-columns: 1fr; }
  .mobile-cta { position: fixed; z-index: 1200; left: 0; right: 0; bottom: 0; height: 66px; padding: 9px 12px calc(9px + env(safe-area-inset-bottom)); display: grid; grid-template-columns: 0.72fr 1.28fr; gap: 8px; border-top: 1px solid var(--line); background: rgba(255, 255, 255, 0.96); backdrop-filter: blur(14px); }
  .mobile-cta a, .mobile-cta button { border: 1px solid rgba(7, 88, 255, 0.22); border-radius: 11px; display: grid; place-items: center; color: var(--blue); background: #fff; font-size: 13px; font-weight: 850; }
  .mobile-cta button { border-color: transparent; color: #fff; background: linear-gradient(135deg, #0b68ff, #0645d7); }
  .site-footer { padding-bottom: calc(28px + 70px + env(safe-area-inset-bottom)); }
}

@media (max-width: 640px) {
  .container { width: calc(100% - 32px); }
  .section { padding: 82px 0; }
  .hero { padding-bottom: 120px; }
  .hero h1 { font-size: 34px; line-height: 1.16; }
  .hero-lead { font-size: 16px; }
  .hero-actions, .cta-copy div { flex-direction: column; }
  .stats-shell { padding: 22px; }
  .section-head h2 { font-size: 32px; }
  .problem-grid { grid-template-columns: 1fr; }
  .system-panel { grid-template-columns: 1fr; }
  .scenario-grid { grid-template-columns: 1fr; }
  .scenario-card { height: 300px; }
  .feature-card { min-height: 430px; }
  .footer-grid { gap: 28px; }
  .pricing-grid.credit-grid { grid-template-columns: 1fr; }
  .credit-grid .price-card:last-child { grid-column: auto; }
  .deduct-cards { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; }
  .reveal { opacity: 1; transform: none; }
}