/* ============================================================
   云起慧播 · 官网设计系统
   蓝白清爽风 / 明亮通透 / 柔和蓝影
   ============================================================ */

/* 本地西文字体仅覆盖 Latin 字符；中文自动使用各操作系统的原生字体。 */
@font-face {
  font-family: "Sora";
  font-style: normal;
  font-display: swap;
  font-weight: 100 800;
  src: url("./assets/fonts/sora-latin-wght-normal.woff2") format("woff2-variations");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6,
    U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122,
    U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
  font-family: "JetBrains Mono";
  font-style: normal;
  font-display: swap;
  font-weight: 100 800;
  src: url("./assets/fonts/jetbrains-mono-latin-wght-normal.woff2") format("woff2-variations");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6,
    U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122,
    U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

:root {
  /* 背景层次 */
  --bg: #ffffff;
  --bg-soft: #f7fbff;
  --bg-tint: #f1f7ff;
  --panel: #ffffff;

  /* 品牌色 */
  --blue-700: #1554c0;
  --blue-600: #1f6feb;
  --blue-500: #3b82f6;
  --blue-400: #60a5fa;
  --blue-100: #dbeafe;
  --blue-50: #eff6ff;
  --cyan: #0ea5e9;
  --cyan-light: #38bdf8;
  --violet: #7c5bf0;
  --gold: #d97706;
  --green: #0d9f6e;
  --danger: #e11d48;

  /* 文本 */
  --ink: #0a1a33;
  --ink-2: #40536e;
  --ink-3: #7189a8;

  /* 描边与阴影 */
  --line: #e3edfb;
  --line-strong: #cfe0f7;
  --shadow-sm: 0 1px 2px rgba(15, 43, 88, 0.05), 0 2px 8px rgba(15, 43, 88, 0.04);
  --shadow-md: 0 4px 14px rgba(15, 43, 88, 0.07), 0 12px 32px rgba(15, 43, 88, 0.06);
  --shadow-lg: 0 12px 30px rgba(15, 43, 88, 0.09), 0 30px 70px rgba(15, 43, 88, 0.08);
  --shadow-blue: 0 8px 24px rgba(31, 111, 235, 0.24);

  /* 圆角 */
  --r-lg: 22px;
  --r-md: 15px;
  --r-sm: 10px;

  /* 字体 */
  --font-display: "Sora", "PingFang SC", "Microsoft YaHei", "HarmonyOS Sans SC", sans-serif;
  --font-body: "PingFang SC", "Microsoft YaHei", "HarmonyOS Sans SC", sans-serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", Consolas, "PingFang SC", "Microsoft YaHei", monospace;

  --container: min(1240px, calc(100% - 64px));
  --header-h: 74px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
  background: var(--bg);
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background: var(--bg);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body.nav-open {
  overflow: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
select,
textarea {
  font: inherit;
}

button,
a,
select {
  cursor: pointer;
}

img,
svg {
  display: block;
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 700;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 1000;
  padding: 10px 16px;
  color: #fff;
  background: var(--blue-600);
  border-radius: 8px;
  font-weight: 700;
  transform: translateY(-180%);
}

.skip-link:focus {
  transform: none;
}

:focus-visible {
  outline: 2px solid var(--blue-600);
  outline-offset: 3px;
}

/* ============ 顶部导航 ============ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 100;
  width: 100%;
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 max(32px, calc((100vw - 1240px) / 2));
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid transparent;
  transition: background 220ms ease, border-color 220ms ease, box-shadow 220ms ease;
}

.site-header.scrolled {
  background: rgba(255, 255, 255, 0.95);
  border-bottom-color: var(--line);
  box-shadow: 0 6px 24px rgba(15, 43, 88, 0.06);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  flex: 0 0 auto;
}

.brand-logo {
  width: 46px;
  height: 32px;
  flex: 0 0 auto;
  object-fit: contain;
}

.brand-copy {
  display: flex;
  flex-direction: column;
}

.brand-copy strong {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: 0.5px;
}

.brand-copy small {
  margin-top: 3px;
  color: var(--ink-3);
  font: 500 8.5px/1 var(--font-mono);
  letter-spacing: 2.2px;
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 30px;
}

.desktop-nav a {
  position: relative;
  color: var(--ink-2);
  font-size: 13.5px;
  font-weight: 500;
  transition: color 200ms ease;
}

.desktop-nav a::after {
  position: absolute;
  right: 0;
  bottom: -7px;
  left: 0;
  height: 2px;
  content: "";
  border-radius: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--blue-600));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 220ms cubic-bezier(0.2, 0.7, 0.2, 1);
}

.desktop-nav a:hover {
  color: var(--blue-600);
}

.desktop-nav a:hover::after {
  transform: scaleX(1);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.header-download {
  height: 42px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0 20px;
  color: #fff;
  border-radius: 99px;
  background: linear-gradient(135deg, var(--blue-600), var(--cyan));
  box-shadow: var(--shadow-blue);
  font-size: 13.5px;
  font-weight: 700;
  transition: transform 200ms ease, box-shadow 200ms ease;
}

.header-download:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(31, 111, 235, 0.34);
}

.header-download svg {
  width: 16px;
}

.header-download[aria-busy="true"] {
  opacity: 0.72;
  pointer-events: none;
}

.menu-toggle {
  width: 42px;
  height: 42px;
  display: none;
  place-items: center;
  color: var(--ink);
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  background: #fff;
}

.menu-toggle svg {
  width: 19px;
}

.mobile-nav {
  position: absolute;
  top: var(--header-h);
  right: 12px;
  left: 12px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #fff;
  box-shadow: var(--shadow-lg);
}

.mobile-nav a {
  display: block;
  padding: 15px 14px;
  color: var(--ink-2);
  border-bottom: 1px solid var(--line);
  font-size: 14.5px;
}

.mobile-nav a:last-child {
  margin-top: 8px;
  color: #fff;
  border-bottom: 0;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--blue-600), var(--cyan));
  font-weight: 700;
  text-align: center;
}

/* ============ 首屏 ============ */
.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.84fr) minmax(560px, 1.16fr);
  align-items: center;
  gap: clamp(48px, 4.5vw, 84px);
  overflow: hidden;
  min-height: min(880px, calc(100vh - 20px));
  padding: 150px max(32px, calc((100vw - 1480px) / 2)) 84px;
  background:
    radial-gradient(900px 520px at 82% 8%, rgba(219, 234, 254, 0.9), transparent 62%),
    radial-gradient(700px 480px at 8% 30%, rgba(224, 242, 254, 0.72), transparent 60%),
    linear-gradient(180deg, #f7fbff 0%, #ffffff 62%, #f7fbff 100%);
}

.hero-dots {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: radial-gradient(rgba(31, 111, 235, 0.12) 1.1px, transparent 1.1px);
  background-size: 26px 26px;
  mask-image: radial-gradient(ellipse 80% 55% at 50% 0%, #000 20%, transparent 76%);
  -webkit-mask-image: radial-gradient(ellipse 80% 55% at 50% 0%, #000 20%, transparent 76%);
}

.hero-blob {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  filter: blur(70px);
}

.blob-a {
  top: -120px;
  right: -80px;
  width: 520px;
  height: 520px;
  background: radial-gradient(circle, rgba(96, 165, 250, 0.28), transparent 70%);
}

.blob-b {
  top: 420px;
  left: -140px;
  width: 460px;
  height: 460px;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.2), transparent 70%);
}

.hero-content {
  position: relative;
  z-index: 3;
  width: min(680px, 100%);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 9px 18px;
  color: var(--blue-700);
  border: 1px solid var(--blue-100);
  border-radius: 99px;
  background: #fff;
  box-shadow: var(--shadow-sm);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1.4px;
}

.eyebrow span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 3px rgba(13, 159, 110, 0.16);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.section-index {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--blue-600);
  font: 700 12.5px/1.2 var(--font-mono);
  letter-spacing: 3.2px;
  text-transform: uppercase;
}

.section-index::before {
  width: 26px;
  height: 2px;
  content: "";
  border-radius: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--blue-600));
}

.hero h1 {
  margin: 28px 0 0;
  color: var(--ink);
  font-size: clamp(50px, 5vw, 78px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -1.5px;
}

.hero h1 em,
.section-heading h2 em,
.results-copy h2 em,
.download-copy h2 em,
.contact-copy h2 em {
  color: transparent;
  background: linear-gradient(96deg, var(--blue-600) 8%, var(--cyan) 92%);
  background-clip: text;
  -webkit-background-clip: text;
  font-style: normal;
}

.hero-content > p {
  max-width: 590px;
  margin: 24px 0 0;
  color: var(--ink-2);
  font-size: 18px;
  line-height: 1.9;
}

.hero-actions,
.download-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin-top: 36px;
}

.button {
  min-height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 0 30px;
  border: 1px solid transparent;
  border-radius: 99px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.4px;
  transition: transform 220ms ease, box-shadow 220ms ease, background 220ms ease, border-color 220ms ease;
}

.button svg {
  width: 18px;
}

.button-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--blue-600), var(--cyan));
  box-shadow: var(--shadow-blue);
}

.button-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 34px rgba(31, 111, 235, 0.34);
}

.button[aria-busy="true"] {
  opacity: 0.72;
  pointer-events: none;
}

.button-quiet {
  color: var(--ink);
  border-color: var(--line-strong);
  background: #fff;
  box-shadow: var(--shadow-sm);
}

.button-quiet:hover {
  transform: translateY(-2px);
  color: var(--blue-700);
  border-color: var(--blue-400);
}

.hero-proof {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin-top: 30px;
}

.hero-proof span {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--ink-3);
  font-size: 13.5px;
}

.hero-proof svg {
  width: 15px;
  color: var(--blue-500);
}

/* ---- 首屏产品主视觉 ---- */
.hero-visual {
  position: relative;
  z-index: 3;
  width: 100%;
  min-width: 0;
  margin: 0;
  padding-top: clamp(34px, 4.5vw, 58px);
  isolation: isolate;
  perspective: 1400px;
}

.hero-visual::before {
  position: absolute;
  inset: 16% 2% -8% 5%;
  z-index: -1;
  content: "";
  border-radius: 24px;
  background: rgba(37, 124, 255, 0.18);
  filter: blur(36px);
  opacity: 0.72;
  transform: translate3d(0, 14px, 0);
}

.hero-mobile-frame {
  position: absolute;
  top: -7%;
  right: -1%;
  z-index: 1;
  width: 38%;
  padding: 4px;
  overflow: hidden;
  border: 1px solid rgba(96, 165, 250, 0.36);
  border-radius: 11px;
  background: rgba(8, 17, 36, 0.92);
  box-shadow:
    0 24px 58px rgba(15, 43, 88, 0.2),
    0 0 36px rgba(59, 130, 246, 0.16);
  filter: blur(0.45px) saturate(0.82) brightness(0.88);
  opacity: 0.78;
  transform: translateZ(-30px);
}

.hero-mobile-frame picture,
.hero-mobile-frame img {
  display: block;
  width: 100%;
}

.hero-mobile-frame img {
  height: auto;
  aspect-ratio: 850 / 1560;
  border-radius: 7px;
  object-fit: cover;
}

.hero-mobile-frame::after {
  position: absolute;
  inset: 4px;
  content: "";
  pointer-events: none;
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 7px;
  background: linear-gradient(120deg, rgba(255, 255, 255, 0.08), transparent 30%);
}

.hero-product-frame {
  position: relative;
  z-index: 2;
  width: 82%;
  padding: 2px;
  overflow: hidden;
  border: 1px solid rgba(198, 198, 199, 0.58);
  border-radius: 12px;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.96), rgba(96, 165, 250, 0.3));
  box-shadow:
    0 30px 70px rgba(15, 43, 88, 0.2),
    0 10px 30px rgba(31, 111, 235, 0.18),
    0 0 42px rgba(56, 189, 248, 0.16),
    inset 0 1px 0 rgba(255, 255, 255, 0.9);
  transform: rotateY(-2deg) rotateX(0.6deg);
  transform-origin: left center;
  transition: transform 450ms cubic-bezier(0.2, 0.75, 0.2, 1), box-shadow 450ms ease;
}

.hero-product-frame::after {
  position: absolute;
  inset: 5px;
  content: "";
  pointer-events: none;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  box-shadow: inset 0 0 20px rgba(96, 165, 250, 0.08);
}

.hero-product-frame:hover {
  box-shadow:
    0 36px 82px rgba(15, 43, 88, 0.23),
    0 14px 38px rgba(31, 111, 235, 0.22),
    0 0 54px rgba(56, 189, 248, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.92);
  transform: translateY(-4px) rotateY(-1deg) rotateX(0);
}

.hero-product-frame picture {
  display: block;
}

.hero-product-frame img {
  width: 100%;
  height: auto;
  aspect-ratio: 2030 / 1366;
  border-radius: 8px;
  object-fit: contain;
}

.hero-product-reflection {
  position: absolute;
  top: calc(100% + 12px);
  left: 0;
  z-index: 0;
  width: 82%;
  height: 30%;
  overflow: hidden;
  pointer-events: none;
  opacity: 0.2;
  filter: blur(1.4px) saturate(0.72);
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.78), transparent 82%);
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.78), transparent 82%);
}

.hero-product-reflection picture,
.hero-product-reflection img {
  display: block;
  width: 100%;
}

.hero-product-reflection picture {
  transform: scaleY(-1);
}

.hero-product-reflection img {
  height: auto;
  aspect-ratio: 2030 / 1366;
  object-fit: contain;
}

/* ============ 跑马灯 ============ */
.marquee {
  padding: 20px 0;
  overflow: hidden;
  white-space: nowrap;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--bg-soft);
  mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
}

.marquee-track {
  display: inline-block;
  animation: scroll 28s linear infinite;
}

.marquee span,
.marquee b {
  font: 700 15px/1 var(--font-display);
  letter-spacing: 5px;
}

.marquee span {
  margin-right: 52px;
  color: var(--ink-3);
}

.marquee b {
  margin-right: 52px;
  color: var(--blue-500);
}

@keyframes scroll {
  to { transform: translateX(-50%); }
}

/* ============ 通用区块 ============ */
.section {
  width: var(--container);
  margin: 0 auto;
}

.product-section,
.workflow-section,
.partner-section {
  padding: 124px 0;
}

.section-heading {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 110px;
  align-items: end;
}

.section-heading h2,
.results-copy h2,
.download-copy h2,
.contact-copy h2 {
  margin: 20px 0 0;
  font-size: clamp(36px, 4vw, 56px);
  line-height: 1.2;
  letter-spacing: -1px;
}

.section-heading > p,
.results-copy > p,
.contact-copy > p {
  margin: 0;
  color: var(--ink-2);
  font-size: 17px;
  line-height: 1.9;
}

/* ============ 功能卡片 ============ */
.feature-ledger {
  display: flex;
  flex-direction: column;
  gap: 28px;
  margin-top: 68px;
}

.feature-row {
  position: relative;
  display: grid;
  grid-template-columns: 58px minmax(280px, 0.85fr) minmax(400px, 1.15fr);
  gap: 34px;
  align-items: center;
  padding: 42px 44px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: #fff;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 300ms ease, transform 300ms ease;
}

.feature-row:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.feature-number {
  align-self: start;
  color: var(--blue-100);
  font: 800 48px/1 var(--font-display);
  letter-spacing: -1px;
}

.feature-copy > span {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--blue-600);
  font-size: 13.5px;
  font-weight: 700;
  letter-spacing: 1.4px;
}

.feature-copy > span i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.16);
}

.feature-copy h3 {
  margin: 15px 0 0;
  font-size: 30px;
  line-height: 1.34;
  letter-spacing: -0.5px;
}

.feature-copy p {
  max-width: 470px;
  margin: 16px 0 0;
  color: var(--ink-2);
  font-size: 16px;
  line-height: 1.88;
}

.feature-copy ul {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.feature-copy li {
  padding: 8px 15px;
  color: var(--blue-700);
  border: 1px solid var(--blue-100);
  border-radius: 99px;
  background: var(--blue-50);
  font-size: 13.5px;
  font-weight: 500;
}

.feature-visual {
  position: relative;
  min-height: 300px;
  overflow: hidden;
  padding: 24px 26px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--bg-soft);
}

/* --- 01 多平台 --- */
.platform-visual {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.bcast-hub {
  display: flex;
  justify-content: center;
  margin-bottom: 18px;
}

.bcast-pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 11px 24px;
  color: #fff;
  border-radius: 99px;
  background: linear-gradient(135deg, var(--blue-600), var(--cyan));
  box-shadow: var(--shadow-blue);
  font-size: 13.5px;
  font-weight: 700;
  text-align: center;
}

.live-dot {
  width: 7px;
  height: 7px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: #fff;
  animation: pulse 1.6s infinite;
}

.plat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 11px;
}

.plat-cell {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
}

.plat-cell img {
  width: 38px;
  height: 38px;
  flex: 0 0 auto;
  border-radius: 11px;
  object-fit: cover;
}

.plat-cell span {
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.plat-cell b {
  font-size: 14.5px;
  font-weight: 700;
}

.plat-cell small {
  display: flex;
  align-items: center;
  gap: 5px;
  margin-top: 4px;
  color: var(--ink-3);
  font-size: 12px;
  white-space: nowrap;
}

.plat-cell .led {
  width: 6.5px;
  height: 6.5px;
  flex: 0 0 auto;
  border-radius: 50%;
}

.plat-cell .led.sync {
  background: var(--cyan);
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.16);
}

.plat-cell .led.wait {
  background: #b9c9dd;
}

.plat-cell:not(.dim) small {
  color: var(--cyan);
}

.plat-cell.dim {
  background: #fbfdff;
}

.plat-cell.dim img {
  opacity: 0.55;
}

/* --- 02 AI 中控 --- */
.command-visual {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.wave-label {
  margin: 0;
  color: var(--ink);
  font-size: 15.5px;
  font-weight: 500;
  text-align: center;
}

.wave {
  height: 58px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin-top: 10px;
}

.wave i {
  width: 5px;
  border-radius: 3px;
  background: linear-gradient(180deg, var(--cyan-light), var(--blue-600));
  animation: wv 1.15s ease-in-out infinite;
}

@keyframes wv {
  0%, 100% { transform: scaleY(0.4); }
  50% { transform: scaleY(1); }
}

.flow-line {
  margin: 8px 0 0;
  color: var(--ink-3);
  font-size: 13px;
  letter-spacing: 1px;
  text-align: center;
}

.flow-line b {
  color: var(--blue-600);
}

.trig-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 18px;
}

.trig {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 13px 14px;
  border: 1px solid var(--blue-100);
  border-radius: 12px;
  background: #fff;
}

.trig > svg {
  width: 20px;
  flex: 0 0 auto;
  color: var(--blue-600);
}

.trig span {
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.trig b {
  font-size: 13.5px;
  font-weight: 700;
}

.trig small {
  margin-top: 3px;
  color: var(--ink-3);
  font-size: 11.5px;
}

/* --- 03 互动 --- */
.chat-visual {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 12px;
}

.chat-message {
  max-width: 86%;
  display: flex;
  align-items: flex-start;
  gap: 11px;
}

.chat-message > b {
  width: 36px;
  height: 36px;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  color: #fff;
  border-radius: 50%;
  background: linear-gradient(135deg, #93a8c4, #7189a8);
  font-size: 13px;
}

.chat-message p {
  margin: 0;
  padding: 12px 16px;
  color: var(--ink-2);
  border: 1px solid var(--line);
  border-radius: 4px 14px 14px 14px;
  background: #fff;
  font-size: 13.5px;
  line-height: 1.7;
}

.chat-message p strong {
  color: var(--ink);
  font-weight: 700;
}

.chat-message.ai {
  align-self: flex-end;
  flex-direction: row-reverse;
}

.chat-message.ai > img {
  width: 36px;
  height: 36px;
  flex: 0 0 auto;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: #fff;
  box-shadow: var(--shadow-sm);
  object-fit: cover;
}

.chat-message.ai p {
  color: var(--ink);
  border-color: var(--blue-100);
  border-radius: 14px 4px 14px 14px;
  background: var(--blue-50);
}

.ai-tag {
  display: block;
  margin-bottom: 5px;
  color: var(--blue-600);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 1px;
}

.typing {
  display: inline-flex !important;
  gap: 5px;
  padding: 14px 18px !important;
}

.typing i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--blue-400);
  animation: blink 1.2s infinite;
}

.typing i:nth-child(2) { animation-delay: 0.2s; }
.typing i:nth-child(3) { animation-delay: 0.4s; }

@keyframes blink {
  0%, 100% { opacity: 0.28; transform: translateY(0); }
  50% { opacity: 1; transform: translateY(-3px); }
}

.reply-status {
  align-self: flex-end;
  display: flex;
  align-items: center;
  gap: 7px;
  color: var(--green);
  font-size: 11.5px;
  font-weight: 500;
}

.reply-status i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 3px rgba(13, 159, 110, 0.16);
}

/* --- 04 策略智库 --- */
.know-visual {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 12px;
}

.know-row {
  display: flex;
  align-items: center;
  gap: 13px;
  padding: 15px 16px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
}

.know-row > svg {
  width: 21px;
  flex: 0 0 auto;
  color: var(--blue-600);
}

.know-row span {
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.know-row b {
  font-size: 15px;
  font-weight: 700;
}

.know-row small {
  margin-top: 4px;
  color: var(--ink-3);
  font-size: 12.5px;
  line-height: 1.55;
}

.know-row em {
  margin-left: auto;
  flex: 0 0 auto;
  padding: 6px 12px;
  color: var(--cyan);
  border: 1px solid rgba(14, 165, 233, 0.28);
  border-radius: 99px;
  background: #f0f9ff;
  font-size: 12px;
  font-style: normal;
  font-weight: 700;
}

.know-row em.warn {
  color: var(--gold);
  border-color: rgba(217, 119, 6, 0.28);
  background: #fffbeb;
}

/* --- 05 声音 --- */
.voice-visual {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  align-content: center;
  gap: 12px;
}

.voice-card {
  position: relative;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
  transition: transform 220ms ease, border-color 220ms ease, box-shadow 220ms ease;
}

.voice-card:hover {
  transform: translateY(-3px);
  border-color: var(--blue-400);
  box-shadow: var(--shadow-sm);
}

.voice-card .vi {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  color: #fff;
  border-radius: 13px;
  font-size: 13px;
  font-weight: 800;
}

.voice-card .vi svg {
  width: 20px;
}

.vi-pink { background: linear-gradient(135deg, #fb7185, #e11d48); }
.vi-blue { background: linear-gradient(135deg, var(--blue-500), var(--cyan)); }
.vi-violet { background: linear-gradient(135deg, #a78bfa, var(--violet)); }
.vi-gold { background: linear-gradient(135deg, #fbbf24, var(--gold)); }

.voice-card b {
  display: block;
  margin-top: 12px;
  font-size: 16px;
  font-weight: 700;
}

.voice-card small {
  display: block;
  margin-top: 4px;
  color: var(--ink-3);
  font-size: 12.5px;
}

.voice-card.on {
  border-color: var(--blue-400);
  background: var(--blue-50);
  box-shadow: 0 6px 20px rgba(31, 111, 235, 0.12);
}

.vcheck {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 24px;
  height: 24px;
  display: grid;
  place-items: center;
  color: #fff;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue-600), var(--cyan));
}

.vcheck svg {
  width: 13px;
}

.voice-card.clone {
  border-style: dashed;
  border-color: rgba(217, 119, 6, 0.42);
}

.vtag {
  position: absolute;
  top: 12px;
  right: 12px;
  padding: 5px 10px;
  color: var(--gold);
  border: 1px solid rgba(217, 119, 6, 0.28);
  border-radius: 99px;
  background: #fffbeb;
  font-size: 11.5px;
  font-style: normal;
  font-weight: 700;
}

/* --- 06 数据 --- */
.insight-visual {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.insight-top {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 11px;
}

.insight-top span {
  padding: 14px 15px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
}

.insight-top small {
  display: block;
  color: var(--ink-3);
  font-size: 12px;
}

.insight-top b {
  display: inline-block;
  margin-top: 6px;
  font: 700 24px/1 var(--font-mono);
}

.insight-top em {
  display: block;
  margin-top: 5px;
  color: var(--green);
  font-size: 12px;
  font-style: normal;
  font-weight: 700;
}

.insight-chart {
  height: 130px;
  display: flex;
  align-items: flex-end;
  gap: 12px;
  margin-top: 18px;
}

.insight-chart .bar {
  flex: 1;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  gap: 9px;
}

.insight-chart .bar i {
  width: 100%;
  max-width: 42px;
  border-radius: 7px 7px 3px 3px;
  background: linear-gradient(180deg, var(--blue-400), var(--blue-100));
  animation: grow 1.4s cubic-bezier(0.2, 0.8, 0.2, 1) both;
}

.insight-chart .bar.hl i {
  background: linear-gradient(180deg, var(--blue-600), var(--cyan-light));
}

.insight-chart .bar span {
  color: var(--ink-3);
  font: 500 11px/1 var(--font-mono);
}

@keyframes grow {
  from { height: 0 !important; }
}

.insight-tip {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 16px 0 0;
  color: var(--ink-2);
  font-size: 13px;
}

.insight-tip svg {
  width: 15px;
  flex: 0 0 auto;
  color: var(--gold);
}

/* ============ 接入流程 ============ */
.workflow-section {
  padding-top: 20px;
}

.workflow-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin: 64px 0 0;
  padding: 0;
  list-style: none;
  counter-reset: none;
}

.workflow-list li {
  position: relative;
  min-height: 280px;
  padding: 32px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: #fff;
  box-shadow: var(--shadow-sm);
  transition: transform 260ms ease, box-shadow 260ms ease;
}

.workflow-list li:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.workflow-list > li > span {
  color: var(--blue-100);
  font: 800 34px/1 var(--font-display);
}

.workflow-list > li > svg,
.workflow-list .workflow-icon {
  width: 28px;
  height: 28px;
  display: block;
  margin-top: 56px;
  color: var(--blue-600);
}

.workflow-list .workflow-icon {
  border-radius: 8px;
  object-fit: cover;
}

.workflow-list h3 {
  margin: 22px 0 0;
  font-size: 21px;
}

.workflow-list p {
  margin: 11px 0 0;
  color: var(--ink-2);
  font-size: 15px;
  line-height: 1.82;
}

/* ============ 客户价值 ============ */
.results-section {
  padding: 4px 0 110px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--bg-soft);
}

.results-inner {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 90px;
  padding: 110px 0 0;
}

.results-copy > p {
  margin-top: 24px;
}

.results-copy > a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 30px;
  color: var(--blue-600);
  font-size: 14px;
  font-weight: 700;
  transition: gap 200ms ease;
}

.results-copy > a:hover {
  gap: 13px;
}

.results-copy > a svg {
  width: 16px;
}

.results-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.results-grid article {
  position: relative;
  min-height: 200px;
  overflow: hidden;
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: #fff;
  box-shadow: var(--shadow-sm);
}

.results-grid article::after {
  position: absolute;
  right: -40px;
  top: -40px;
  width: 130px;
  height: 130px;
  content: "";
  border-radius: 50%;
  background: radial-gradient(circle, rgba(219, 234, 254, 0.85), transparent 70%);
}

.results-grid strong {
  position: relative;
  display: block;
  color: transparent;
  background: linear-gradient(120deg, var(--blue-700) 15%, var(--cyan) 90%);
  background-clip: text;
  -webkit-background-clip: text;
  font: 700 50px/1 var(--font-mono);
  letter-spacing: -1.5px;
}

.results-grid strong small {
  font-size: 25px;
}

.results-grid span {
  display: block;
  margin-top: 16px;
  font-size: 15px;
  font-weight: 700;
}

.results-grid p {
  margin: 7px 0 0;
  color: var(--ink-3);
  font-size: 13.5px;
  line-height: 1.72;
}

/* ---- 口碑 ---- */
.quotes {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 20px;
}

.quote {
  display: flex;
  flex-direction: column;
  margin: 0;
  padding: 28px 28px 24px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: #fff;
  box-shadow: var(--shadow-sm);
}

.quote .mark {
  color: var(--blue-100);
  font: 900 50px/0.7 Georgia, serif;
}

.quote > p {
  flex: 1;
  margin: 16px 0 0;
  color: var(--ink-2);
  font-size: 15.5px;
  line-height: 1.85;
}

.quote > p strong {
  color: var(--ink);
  font-weight: 700;
}

.quote footer {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.quote .qa {
  width: 38px;
  height: 38px;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  color: #fff;
  border-radius: 50%;
  font-size: 14px;
  font-weight: 700;
}

.qa-pink { background: linear-gradient(135deg, #fb7185, #e11d48); }
.qa-violet { background: linear-gradient(135deg, #a78bfa, var(--blue-600)); }
.qa-green { background: linear-gradient(135deg, #34d399, var(--green)); }

.quote .qn {
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.quote .qn b {
  font-size: 14px;
  font-weight: 700;
}

.quote .qn small {
  margin-top: 3px;
  color: var(--ink-3);
  font-size: 12px;
}

.quote .stars5 {
  margin-left: auto;
  flex: 0 0 auto;
  color: #f59e0b;
  font-size: 12px;
  letter-spacing: 1.5px;
}

/* ============ 下载 ============ */
.download-section {
  padding: 116px 0;
}

.download-panel {
  position: relative;
  min-height: 420px;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: 68px;
  overflow: hidden;
  padding: 66px;
  border: 1px solid var(--blue-100);
  border-radius: 26px;
  background:
    radial-gradient(600px 340px at 84% 6%, rgba(191, 219, 254, 0.72), transparent 66%),
    radial-gradient(520px 300px at 6% 92%, rgba(224, 242, 254, 0.72), transparent 64%),
    #fbfdff;
  box-shadow: var(--shadow-md);
}

.download-copy > p {
  margin: 20px 0 0;
  color: var(--ink-2);
  font-size: 16px;
}

.download-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 18px;
  color: var(--ink-3);
  font-size: 12.5px;
}

.download-meta svg {
  width: 14px;
  color: var(--green);
}

.system-card {
  padding: 32px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: #fff;
  box-shadow: var(--shadow-sm);
}

.windows-mark {
  width: 52px;
  height: 52px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 4px;
  transform: perspective(80px) rotateY(-8deg);
}

.windows-mark i {
  border-radius: 2px;
  background: var(--blue-500);
}

.windows-mark i:nth-child(2) { background: var(--cyan); }
.windows-mark i:nth-child(3) { background: var(--blue-400); }

.system-card > div:nth-child(2) {
  display: flex;
  flex-direction: column;
  margin-top: 26px;
}

.system-card small {
  color: var(--ink-3);
  font-size: 12.5px;
}

.system-card strong {
  margin-top: 6px;
  font: 700 24px/1.2 var(--font-display);
}

.system-card span {
  margin-top: 6px;
  color: var(--ink-2);
  font-size: 13.5px;
}

.system-card ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 24px 0 0;
  padding: 22px 0 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.system-card li {
  display: flex;
  align-items: center;
  gap: 9px;
  color: var(--ink-2);
  font-size: 13.5px;
}

.system-card li svg {
  width: 14px;
  color: var(--green);
}

/* ============ 渠道合作 ============ */
.partner-layout {
  display: grid;
  grid-template-columns: 1.35fr 0.65fr;
  gap: 16px;
  margin-top: 64px;
}

.partner-types {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.partner-types article {
  min-height: 280px;
  display: flex;
  flex-direction: column;
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: #fff;
  box-shadow: var(--shadow-sm);
  transition: transform 260ms ease, box-shadow 260ms ease;
}

.partner-types article:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.partner-types svg {
  width: 26px;
  color: var(--blue-600);
}

.partner-types span {
  display: block;
  margin-top: auto;
  padding-top: 56px;
  font-size: 16px;
  font-weight: 700;
}

.partner-types p {
  margin: 10px 0 0;
  color: var(--ink-3);
  font-size: 14px;
  line-height: 1.78;
}

.partner-contact {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 32px;
  border: 1px solid var(--blue-100);
  border-radius: var(--r-lg);
  background:
    radial-gradient(420px 260px at 84% 4%, rgba(191, 219, 254, 0.62), transparent 66%),
    var(--blue-50);
}

.partner-contact > span {
  color: var(--blue-600);
  font: 700 11.5px/1 var(--font-mono);
  letter-spacing: 2.2px;
}

.partner-contact h3 {
  margin: 14px 0 0;
  font-size: 25px;
}

.partner-contact p {
  margin: 12px 0 24px;
  color: var(--ink-2);
  font-size: 14px;
  line-height: 1.78;
}

.partner-qr {
  display: flex;
  align-items: center;
  gap: 17px;
  padding: 16px;
  border: 1px solid rgba(31, 111, 235, 0.16);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.88);
  box-shadow: var(--shadow-sm);
}

.partner-qr img {
  width: 132px;
  height: 132px;
  flex: 0 0 auto;
  padding: 5px;
  border: 1px solid var(--line);
  border-radius: 13px;
  background: #fff;
}

.partner-qr > div {
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.partner-qr b {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 15px;
}

.partner-qr b svg {
  width: 17px;
  color: var(--blue-600);
}

.partner-qr small {
  margin-top: 7px;
  color: var(--ink-3);
  font-size: 12px;
  line-height: 1.55;
}

.partner-qr em {
  margin-top: 12px;
  color: var(--blue-700);
  font-size: 12px;
  font-style: normal;
  font-weight: 700;
}

/* ============ 联系我们 ============ */
.contact-section {
  position: relative;
  overflow: hidden;
  border-top: 1px solid var(--line);
  background:
    radial-gradient(650px 440px at 82% 48%, rgba(191, 219, 254, 0.52), transparent 68%),
    var(--bg-soft);
}

.contact-inner {
  display: grid;
  grid-template-columns: 0.84fr 1.16fr;
  gap: 88px;
  align-items: center;
  padding: 110px 0;
}

.contact-copy > p {
  margin-top: 23px;
}

.contact-lines {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-top: 38px;
}

.contact-lines > span {
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--ink);
  font-size: 15px;
}

.contact-lines svg {
  width: 19px;
  flex: 0 0 auto;
  color: var(--blue-600);
}

.contact-lines > span span {
  display: flex;
  flex-direction: column;
}

.contact-lines small {
  margin-bottom: 3px;
  color: var(--ink-3);
  font-size: 11.5px;
}

.contact-qr-card {
  position: relative;
  isolation: isolate;
  display: flex;
  flex-direction: column;
  align-items: center;
  overflow: hidden;
  padding: 46px 42px 40px;
  border: 1px solid var(--blue-100);
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--shadow-lg);
  text-align: center;
}

.qr-aura {
  position: absolute;
  z-index: -1;
  top: -110px;
  right: -90px;
  width: 340px;
  height: 340px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.22), transparent 68%);
  filter: blur(12px);
}

.qr-kicker {
  color: var(--blue-600);
  font: 700 11.5px/1 var(--font-mono);
  letter-spacing: 2.8px;
}

.contact-qr-card > img {
  width: min(260px, 72vw);
  height: auto;
  margin-top: 24px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: #fff;
  box-shadow: 0 12px 32px rgba(15, 43, 88, 0.1);
}

.contact-qr-card h3 {
  margin: 24px 0 0;
  font-size: 25px;
}

.contact-qr-card > p {
  max-width: 500px;
  margin: 12px 0 0;
  color: var(--ink-2);
  font-size: 14px;
  line-height: 1.8;
}

.contact-qr-card ul {
  width: 100%;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 9px;
  margin: 24px 0 0;
  padding: 20px 0 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.contact-qr-card li {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  color: var(--ink-2);
  font-size: 12.5px;
}

.contact-qr-card li svg {
  width: 14px;
  flex: 0 0 auto;
  color: var(--green);
}

/* ============ 页脚 ============ */
.site-footer {
  width: var(--container);
  margin: 0 auto;
  padding: 50px 0 26px;
}

.footer-main {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  align-items: center;
  padding-bottom: 40px;
}

.footer-main > p {
  color: var(--ink-3);
  font-size: 13px;
  letter-spacing: 3px;
  text-align: center;
}

.footer-links {
  display: flex;
  justify-content: flex-end;
  gap: 22px;
}

.footer-links a {
  color: var(--ink-3);
  font-size: 13px;
  transition: color 200ms ease;
}

.footer-links a:hover {
  color: var(--blue-700);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px 24px;
  padding-top: 22px;
  color: #52739c;
  border-top: 1px solid var(--line);
  font-size: 11.5px;
  text-align: center;
}

.footer-bottom a {
  transition: color 200ms ease;
}

.footer-bottom a:hover {
  color: var(--blue-600);
}

.footer-bottom .deerflow-credit {
  opacity: .48;
  font: 600 10px/1 var(--font-mono);
}

/* ============ Toast ============ */
.toast {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 200;
  max-width: min(420px, calc(100vw - 40px));
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 14px 15px;
  color: var(--ink);
  border: 1px solid var(--line-strong);
  border-radius: 14px;
  background: #fff;
  box-shadow: var(--shadow-lg);
  font-size: 12.5px;
}

.toast[hidden] {
  display: none;
}

.toast > svg {
  width: 17px;
  flex: 0 0 auto;
  color: var(--blue-600);
}

.toast span {
  flex: 1;
  line-height: 1.65;
}

.toast button {
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  color: var(--ink-3);
  border: 0;
  border-radius: 8px;
  background: transparent;
}

.toast button svg {
  width: 14px;
}

/* ============ 滚动显现 ============ */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 700ms cubic-bezier(0.2, 0.7, 0.2, 1), transform 700ms cubic-bezier(0.2, 0.7, 0.2, 1);
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* ============ 响应式 ============ */
@media (max-width: 1180px) {
  :root {
    --container: min(calc(100% - 48px), 980px);
  }

  .hero {
    grid-template-columns: minmax(0, 0.9fr) minmax(470px, 1.1fr);
    gap: 36px;
  }

  .desktop-nav {
    gap: 20px;
  }

  .section-heading {
    gap: 60px;
  }

  .feature-row {
    grid-template-columns: 48px minmax(240px, 0.9fr) minmax(320px, 1.1fr);
    gap: 26px;
    padding: 36px;
  }

  .trig-row {
    grid-template-columns: repeat(2, 1fr);
  }

  .results-inner,
  .contact-inner {
    gap: 56px;
  }

  .partner-layout {
    grid-template-columns: 1fr;
  }

  .quotes {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 900px) {
  .desktop-nav,
  .header-download {
    display: none;
  }

  .menu-toggle {
    display: grid;
  }

  .hero {
    grid-template-columns: minmax(0, 1fr);
    padding-top: 136px;
    min-height: auto;
  }

  .hero-content {
    width: auto;
  }

  .hero-visual {
    width: min(820px, 100%);
    justify-self: center;
    margin-top: 48px;
  }

  .hero-product-frame {
    width: 88%;
    transform: none;
  }

  .hero-mobile-frame {
    top: -3%;
    right: 0;
    width: 34%;
    filter: blur(0.4px) saturate(0.86) brightness(0.92);
    transform: none;
  }

  .hero-product-reflection {
    display: none;
  }

  .section-heading,
  .results-inner,
  .download-panel,
  .contact-inner {
    grid-template-columns: 1fr;
    gap: 42px;
  }

  .feature-row {
    grid-template-columns: 44px 1fr;
  }

  .feature-visual {
    grid-column: 2;
  }

  .plat-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .workflow-list,
  .partner-types,
  .results-grid {
    grid-template-columns: 1fr;
  }

  .workflow-list li {
    min-height: auto;
  }

  .workflow-list > li > svg,
  .workflow-list .workflow-icon {
    margin-top: 20px;
  }

  .partner-types article {
    min-height: auto;
  }

  .partner-types span {
    padding-top: 20px;
  }

  .results-grid article {
    min-height: auto;
  }

  .download-panel {
    padding: 46px;
  }

  .footer-main {
    grid-template-columns: 1fr;
    gap: 26px;
    justify-items: center;
  }

  .footer-links {
    justify-content: center;
    flex-wrap: wrap;
  }
}

@media (max-width: 640px) {
  :root {
    --container: calc(100% - 32px);
    --header-h: 66px;
  }

  .site-header {
    padding: 0 16px;
  }

  .hero {
    padding: 108px 16px 60px;
  }

  .hero h1 {
    font-size: clamp(38px, 11.5vw, 56px);
  }

  .hero-content > p {
    font-size: 16px;
  }

  .hero-actions,
  .download-actions {
    width: 100%;
    align-items: stretch;
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .hero-proof {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
  }

  .marquee span,
  .marquee b {
    font-size: 13px;
    letter-spacing: 4px;
  }

  .product-section,
  .workflow-section,
  .partner-section {
    padding: 80px 0;
  }

  .section-heading h2,
  .results-copy h2,
  .download-copy h2,
  .contact-copy h2 {
    font-size: 32px;
  }

  .feature-ledger {
    gap: 18px;
    margin-top: 44px;
  }

  .feature-row {
    grid-template-columns: 1fr;
    gap: 22px;
    padding: 26px 20px;
  }

  .feature-number {
    font-size: 38px;
  }

  .feature-visual {
    grid-column: auto;
    min-height: auto;
    padding: 20px 16px;
  }

  .feature-copy h3 {
    font-size: 25px;
  }

  .plat-grid,
  .trig-row,
  .voice-visual {
    grid-template-columns: 1fr;
  }

  .insight-top {
    grid-template-columns: 1fr;
  }

  .insight-chart {
    gap: 7px;
  }

  .chat-message {
    max-width: 94%;
  }

  .results-section {
    padding-bottom: 80px;
  }

  .results-inner,
  .contact-inner {
    padding: 78px 0;
  }

  .download-section {
    padding: 74px 0;
  }

  .download-panel {
    padding: 30px 22px;
  }

  .system-card {
    padding: 24px 20px;
  }

  .partner-qr {
    align-items: center;
  }

  .partner-qr img {
    width: 112px;
    height: 112px;
  }

  .contact-qr-card {
    padding: 34px 20px 30px;
  }

  .contact-qr-card ul {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .contact-qr-card li {
    justify-content: flex-start;
  }

  .quote {
    padding: 24px 22px;
  }

  .quote footer {
    flex-wrap: wrap;
  }

  .footer-bottom {
    align-items: center;
    flex-direction: column;
    gap: 10px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}


/* ============ 多页面：页面头图与共享内容 ============ */
.desktop-nav a.active {
  color: var(--blue-600);
}
.desktop-nav a.active::after {
  transform: scaleX(1);
}
.mobile-nav a.active {
  color: var(--blue-600);
  font-weight: 700;
}
.page-hero {
  position: relative;
  overflow: hidden;
  padding: 142px max(32px, calc((100vw - 1280px) / 2)) 88px;
  background: linear-gradient(180deg, #f4f8fc 0%, #fff 86%);
}
.page-hero::before {
  position: absolute;
  inset: 0;
  content: "";
  pointer-events: none;
  opacity: .48;
  background-image:
    linear-gradient(rgba(36, 85, 143, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(36, 85, 143, .045) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: linear-gradient(to bottom, #000, transparent 76%);
  mask-image: linear-gradient(to bottom, #000, transparent 76%);
}
.page-hero .hero-dots { opacity: .78; }
.page-hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, .88fr) minmax(540px, 1.12fr);
  gap: clamp(40px, 5vw, 72px);
  align-items: center;
}
.page-hero-copy { max-width: 620px; }
.page-hero-copy h1 {
  margin: 24px 0 0;
  font-size: clamp(42px, 4.7vw, 66px);
  line-height: 1.14;
  letter-spacing: 0;
}
.page-hero-copy > p {
  margin: 22px 0 0;
  color: var(--ink-2);
  font-size: 17px;
  line-height: 1.85;
}
.page-hero--about .page-hero-copy h1 {
  max-width: 640px;
  font-size: clamp(34px, 3.2vw, 48px);
  line-height: 1.32;
  font-weight: 720;
}
.page-hero-visual {
  position: relative;
  margin: 0;
  aspect-ratio: 8 / 5;
  overflow: hidden;
  border: 1px solid rgba(168, 189, 215, .58);
  border-radius: 16px;
  background: #eaf1f8;
  box-shadow:
    0 30px 70px rgba(45, 76, 112, .18),
    0 2px 6px rgba(45, 76, 112, .08);
}
.page-hero-visual::after {
  position: absolute;
  inset: 0;
  content: "";
  pointer-events: none;
  border-radius: inherit;
  box-shadow: inset 0 1px rgba(255, 255, 255, .76);
}
.page-hero-visual img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  background: #eef4f9;
}
.page-hero--product .page-hero-visual {
  transform: rotate(-.8deg);
}
.page-hero--partners .page-hero-visual {
  transform: rotate(.6deg);
}
.page-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}
.page-section { padding: 104px 0; }
.page-section.soft {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--bg-soft);
}
.content-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 58px;
}
.content-card {
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: #fff;
  box-shadow: var(--shadow-sm);
}
.content-card .icon-box {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  color: #fff;
  border-radius: 15px;
  background: linear-gradient(135deg, var(--blue-600), var(--cyan));
}
.content-card .icon-box svg { width: 23px; }
.content-card h3 { margin: 20px 0 0; font-size: 22px; }
.content-card p { margin: 12px 0 0; color: var(--ink-2); font-size: 15px; line-height: 1.82; }
.content-card ul { margin: 18px 0 0; padding-left: 18px; color: var(--ink-2); font-size: 14px; line-height: 1.9; }
.contact-methods {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  margin-top: 58px;
}
.contact-method {
  display: flex;
  gap: 16px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: #fff;
  box-shadow: var(--shadow-sm);
}
.contact-method .icon-box {
  width: 46px; height: 46px; flex: 0 0 auto;
  display: grid; place-items: center; color: #fff; border-radius: 14px;
  background: linear-gradient(135deg, var(--blue-600), var(--cyan));
}
.contact-method .icon-box svg { width: 22px; }
.contact-method h3 { margin: 0; font-size: 20px; }
.contact-method p { margin: 8px 0 0; color: var(--ink-2); font-size: 15px; line-height: 1.75; }
.contact-method a { color: var(--blue-700); font-weight: 700; }
.contact-hero-card {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 24px;
  align-items: center;
  margin-top: 58px;
  padding: 34px;
  border: 1px solid var(--blue-100);
  border-radius: 28px;
  background: rgba(255,255,255,.9);
  box-shadow: var(--shadow-md);
}
.contact-hero-card img {
  width: 100%;
  max-width: 260px;
  justify-self: center;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: #fff;
}
.contact-hero-card h3 { margin: 0; font-size: 28px; }
.contact-hero-card p { margin: 14px 0 0; color: var(--ink-2); line-height: 1.85; }
@media (max-width: 1180px) {
  .page-hero-inner { grid-template-columns: 1fr; gap: 44px; }
  .page-hero-copy { max-width: 760px; }
  .page-hero-visual { width: 100%; max-width: 900px; }
  .content-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 900px) {
  .page-hero { padding: 120px 20px 64px; }
  .page-hero-visual {
    aspect-ratio: 4 / 3;
    border-radius: 13px;
  }
  .page-hero--product .page-hero-visual,
  .page-hero--partners .page-hero-visual {
    transform: none;
  }
  .content-grid, .contact-methods, .contact-hero-card { grid-template-columns: 1fr; }
}

.contact-quick-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px 14px; margin: 20px 0 0; padding: 20px 0 0; border-top: 1px solid var(--line); list-style: none; }
.contact-quick-list li { display:flex; align-items:center; gap:8px; color:var(--ink-2); font-size:14px; }
.contact-quick-list svg { width:16px; color:var(--green); flex:0 0 auto; }
@media (max-width: 640px){ .contact-quick-list { grid-template-columns:1fr; } }

/* 关于我们实景顶部 */
.page-hero-visual.about-photo {
  background: #dce7ee;
}
.page-hero-visual.about-photo::after {
  position: absolute;
  inset: 0;
  content: "";
  pointer-events: none;
  background: linear-gradient(135deg, rgba(255,255,255,.08), transparent 52%, rgba(22,87,165,.09));
}
.page-hero-visual.about-photo img {
  object-position: center;
}
@media (max-width: 900px) {
  .page-hero--about .page-hero-visual {
    aspect-ratio: 4 / 3;
  }
}