/* =========================================================================
   老幼以及 · 官方网站 设计系统
   科技简约 + 温暖治愈  |  深紫墨色 / 奶油纸 / 橙色点缀
   ========================================================================= */

:root {
  /* 墨与紫 */
  --ink-900: #120726;
  --ink-800: #1B0C3B;
  --ink-700: #251350;
  --violet-700: #5B21B6;
  --violet-600: #6D33D6;
  --violet-500: #7C3AED;
  --violet-400: #9B6BFF;
  --violet-200: #D9C8FF;
  --violet-50: #F4EEFF;

  /* 暖橙 */
  --orange-600: #DE5514;
  --orange-500: #F26722;
  --orange-400: #FF8A3D;
  --orange-200: #FFD3B6;
  --orange-50: #FFF3EA;

  /* 纸张 */
  --cream: #FAF6F0;
  --cream-2: #F3EDE4;
  --paper: #FFFFFF;

  /* 文字 */
  --text: #1B1233;
  --text-2: #5C5273;
  --text-3: #8C84A0;
  --text-inv: #F6F2FF;
  --text-inv-2: rgba(238, 232, 255, 0.66);

  /* 描边 */
  --line: #E8E0D5;
  --line-cool: #EAE4F6;
  --line-inv: rgba(255, 255, 255, 0.12);

  /* 圆角 */
  --r-xs: 10px;
  --r-sm: 14px;
  --r-md: 20px;
  --r-lg: 28px;
  --r-xl: 40px;

  /* 阴影 */
  --sh-xs: 0 1px 2px rgba(27, 18, 51, 0.06);
  --sh-sm: 0 6px 18px -8px rgba(27, 18, 51, 0.18);
  --sh-md: 0 18px 44px -22px rgba(27, 18, 51, 0.3);
  --sh-lg: 0 40px 90px -40px rgba(27, 18, 51, 0.42);
  --sh-glow: 0 24px 60px -20px rgba(124, 58, 237, 0.42);

  /* 字体 */
  --font: "PingFang SC", "HarmonyOS Sans SC", "Noto Sans SC", "Source Han Sans SC",
    "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;

  --nav-h: 74px;
  --ease: cubic-bezier(0.22, 0.68, 0.28, 1);
}

/* ---------------------------------------------------------------- 基础 */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 16px);
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.72;
  color: var(--text);
  background: var(--cream);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; }
::selection { background: var(--violet-500); color: #fff; }

h1, h2, h3, h4, p { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }

:focus-visible {
  outline: 2px solid var(--violet-500);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------------------------------------------------------------- 布局 */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
}
.container--wide { max-width: 1340px; }
.container--narrow { max-width: 880px; }

.section { padding: 116px 0; position: relative; }
.section--tight { padding: 76px 0; }
.section--paper { background: var(--paper); }
.section--cream { background: var(--cream); }
.section--dark {
  background: var(--ink-900);
  color: var(--text-inv);
}
.section--dark .h2,
.section--dark .h3 { color: #fff; }
.section--dark .lede { color: var(--text-inv-2); }

.stack-24 > * + * { margin-top: 24px; }

/* ---------------------------------------------------------------- 排版 */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--violet-600);
  text-transform: uppercase;
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--violet-500), var(--orange-500));
}
.eyebrow--center { justify-content: center; }
.section--dark .eyebrow { color: var(--violet-200); }

.h1 {
  font-size: clamp(38px, 4.5vw, 66px);
  line-height: 1.08;
  font-weight: 700;
  letter-spacing: -0.028em;
}
.h2 {
  font-size: clamp(30px, 3.6vw, 46px);
  line-height: 1.18;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
}
.h3 {
  font-size: clamp(20px, 2vw, 24px);
  line-height: 1.4;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text);
}
.h4 {
  font-size: 17px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--text);
}
.lede {
  font-size: 17px;
  line-height: 1.85;
  color: var(--text-2);
}
.small { font-size: 14px; line-height: 1.75; color: var(--text-3); }
.mono {
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
}
.text-grad {
  background: linear-gradient(96deg, #EFE3FF 0%, #B98BFF 38%, #FFAB73 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.text-orange { color: var(--orange-500); }

.section-head { max-width: 720px; }
.section-head--center { margin: 0 auto; text-align: center; }
.section-head .h2 { margin-top: 20px; }
.section-head .lede { margin-top: 18px; }

/* ---------------------------------------------------------------- 按钮 */
.btn {
  --btn-bg: var(--violet-600);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  height: 52px;
  padding: 0 26px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.01em;
  cursor: pointer;
  white-space: nowrap;
  transition: transform 0.28s var(--ease), box-shadow 0.28s var(--ease),
    background 0.28s var(--ease), color 0.28s var(--ease), border-color 0.28s var(--ease);
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn--primary {
  background: linear-gradient(120deg, var(--violet-600), var(--violet-500) 52%, #8E4BF5 100%);
  color: #fff;
  box-shadow: 0 14px 34px -14px rgba(109, 51, 214, 0.72);
}
.btn--primary:hover { box-shadow: 0 22px 48px -16px rgba(109, 51, 214, 0.82); }

.btn--warm {
  background: linear-gradient(120deg, var(--orange-500), var(--orange-400));
  color: #fff;
  box-shadow: 0 14px 34px -14px rgba(242, 103, 34, 0.66);
}

.btn--ghost {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.26);
  color: #fff;
  backdrop-filter: blur(6px);
}
.btn--ghost:hover {
  border-color: rgba(255, 255, 255, 0.55);
  background: rgba(255, 255, 255, 0.08);
}

.btn--outline {
  background: transparent;
  border-color: var(--line);
  color: var(--text);
}
.btn--outline:hover {
  border-color: var(--violet-500);
  color: var(--violet-600);
  background: var(--violet-50);
}

.btn--sm { height: 42px; padding: 0 18px; font-size: 14px; }
.btn--block { width: 100%; }

.btn__arrow { transition: transform 0.3s var(--ease); }
.btn:hover .btn__arrow { transform: translateX(4px); }

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 600;
  color: var(--violet-600);
  cursor: pointer;
}
.link-arrow span:last-child { transition: transform 0.3s var(--ease); }
.link-arrow:hover span:last-child { transform: translateX(5px); }

/* ---------------------------------------------------------------- 导航 */
.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 90;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  transition: background 0.4s var(--ease), border-color 0.4s var(--ease),
    backdrop-filter 0.4s var(--ease), box-shadow 0.4s var(--ease);
  border-bottom: 1px solid transparent;
}
.site-header__inner {
  width: 100%;
  max-width: 1340px;
  margin: 0 auto;
  padding: 0 32px;
  display: flex;
  align-items: center;
  gap: 28px;
}
.site-header.is-light.has-bg {
  background: rgba(250, 246, 240, 0.9);
  backdrop-filter: saturate(160%) blur(18px);
  border-bottom-color: rgba(27, 18, 51, 0.08);
}
.site-header.is-dark.has-bg {
  background: rgba(18, 7, 38, 0.72);
  backdrop-filter: saturate(140%) blur(16px);
  border-bottom-color: var(--line-inv);
}

.brand { display: flex; align-items: center; gap: 11px; flex: none; }
.brand__mark {
  width: 38px;
  height: 38px;
  border-radius: 11px;
  object-fit: cover;
  box-shadow: 0 4px 14px -6px rgba(27, 18, 51, 0.4);
}
.brand__text { display: flex; flex-direction: column; line-height: 1.1; }
.brand__name {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--text);
  transition: color 0.3s var(--ease);
}
.brand__sub {
  font-size: 9px;
  letter-spacing: 0.22em;
  color: var(--text-3);
  transition: color 0.3s var(--ease);
}
.site-header.is-dark .brand__name { color: #fff; }
.site-header.is-dark .brand__sub { color: rgba(255, 255, 255, 0.5); }

.nav {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}
.nav__link {
  position: relative;
  padding: 9px 15px;
  border-radius: 999px;
  font-size: 14.5px;
  font-weight: 500;
  color: var(--text-2);
  transition: color 0.25s var(--ease), background 0.25s var(--ease);
}
.nav__link:hover { color: var(--text); background: rgba(124, 58, 237, 0.07); }
.nav__link.is-active { color: var(--violet-600); font-weight: 600; }
.nav__link.is-active::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 2px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--orange-500);
  transform: translateX(-50%);
}
.site-header.is-dark .nav__link { color: rgba(255, 255, 255, 0.8); }
.site-header.is-dark .nav__link:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}
.site-header.is-dark .nav__link.is-active { color: #fff; }

.header__actions { display: flex; align-items: center; gap: 10px; flex: none; }

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(27, 18, 51, 0.12);
  border-radius: 12px;
  background: transparent;
  cursor: pointer;
  position: relative;
}
.nav-toggle span {
  position: absolute;
  left: 11px;
  width: 18px;
  height: 1.6px;
  border-radius: 2px;
  background: currentColor;
  transition: transform 0.32s var(--ease), opacity 0.2s var(--ease);
}
.nav-toggle span:nth-child(1) { top: 14px; }
.nav-toggle span:nth-child(2) { top: 20px; }
.nav-toggle span:nth-child(3) { top: 26px; }
.site-header.is-dark .nav-toggle { border-color: rgba(255, 255, 255, 0.24); color: #fff; }
.nav-open .nav-toggle span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
.nav-open .nav-toggle span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ---------------------------------------------------------------- Hero */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: calc(var(--nav-h) + 72px) 0 96px;
  background: radial-gradient(120% 90% at 78% 8%, #34176B 0%, #1B0C3B 42%, #100620 100%);
  color: var(--text-inv);
  overflow: hidden;
  isolation: isolate;
}
.hero__grid {
  position: absolute;
  inset: -10% -10% 0;
  background-image: linear-gradient(to right, rgba(255, 255, 255, 0.055) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.055) 1px, transparent 1px);
  background-size: 68px 68px;
  -webkit-mask-image: radial-gradient(78% 62% at 50% 32%, #000 0%, transparent 78%);
  mask-image: radial-gradient(78% 62% at 50% 32%, #000 0%, transparent 78%);
  z-index: -2;
}
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
  opacity: 0.55;
  z-index: -1;
  animation: float 16s ease-in-out infinite;
}
.orb--1 {
  width: 520px; height: 520px;
  top: -140px; right: 4%;
  background: radial-gradient(circle, rgba(124, 58, 237, 0.95), transparent 66%);
}
.orb--2 {
  width: 420px; height: 420px;
  bottom: -160px; left: -60px;
  background: radial-gradient(circle, rgba(242, 103, 34, 0.52), transparent 66%);
  animation-delay: -6s;
}
.orb--3 {
  width: 340px; height: 340px;
  top: 34%; left: 46%;
  background: radial-gradient(circle, rgba(155, 107, 255, 0.42), transparent 68%);
  animation-delay: -11s;
}
@keyframes float {
  0%, 100% { transform: translate3d(0, 0, 0) scale(1); }
  50% { transform: translate3d(0, -34px, 0) scale(1.07); }
}

.hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 56px;
  align-items: center;
  width: 100%;
}
.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  height: 34px;
  padding: 0 14px 0 10px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(8px);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: rgba(255, 255, 255, 0.86);
}
.hero__badge b {
  display: inline-flex;
  align-items: center;
  height: 20px;
  padding: 0 8px;
  border-radius: 999px;
  background: linear-gradient(120deg, var(--orange-500), var(--orange-400));
  color: #fff;
  font-size: 11px;
  letter-spacing: 0.06em;
}
.hero__title { margin-top: 26px; }
.hero__title em {
  font-style: normal;
  display: block;
}
.hero__desc {
  margin-top: 26px;
  max-width: 520px;
  font-size: 17px;
  line-height: 1.86;
  color: rgba(238, 232, 255, 0.74);
}
.hero__cta { margin-top: 38px; display: flex; flex-wrap: wrap; gap: 14px; }

.hero__meta {
  margin-top: 54px;
  padding-top: 26px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  max-width: 520px;
}
.hero__meta-item .num {
  font-size: 30px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: #fff;
  line-height: 1.15;
}
.hero__meta-item .num i {
  font-style: normal;
  font-size: 15px;
  font-weight: 600;
  margin-left: 2px;
  color: var(--violet-200);
}
.hero__meta-item .cap {
  margin-top: 4px;
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: rgba(238, 232, 255, 0.52);
}

/* 手机展示 */
.hero__visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 560px;
}
.phone {
  position: relative;
  width: 292px;
  border-radius: 42px;
  padding: 9px;
  background: linear-gradient(160deg, #3B2A63, #150B28 60%, #2A1A4D);
  box-shadow: 0 50px 90px -40px rgba(0, 0, 0, 0.85), 0 0 0 1px rgba(255, 255, 255, 0.09);
  transform: rotate(-3.4deg);
  animation: phoneFloat 9s ease-in-out infinite;
  z-index: 2;
}
@keyframes phoneFloat {
  0%, 100% { transform: rotate(-3.4deg) translateY(0); }
  50% { transform: rotate(-2.6deg) translateY(-14px); }
}
.phone__screen {
  position: relative;
  overflow: hidden;
  border-radius: 34px;
  background: #F4F1FB;
  aspect-ratio: 390 / 780;
}
.phone__screen img { width: 100%; height: 100%; object-fit: cover; object-position: top center; }
.phone__notch {
  position: absolute;
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
  width: 96px;
  height: 22px;
  border-radius: 999px;
  background: #12071F;
  z-index: 2;
}
.phone--ghost {
  position: absolute;
  width: 198px;
  right: -5%;
  bottom: 1%;
  transform: rotate(7.5deg);
  opacity: 0.97;
  animation: none;
  z-index: 1;
  filter: saturate(0.94);
  box-shadow: 0 40px 70px -34px rgba(0, 0, 0, 0.9), 0 0 0 1px rgba(255, 255, 255, 0.07);
}
.phone--ghost .phone__screen { aspect-ratio: 390 / 700; }

.hero__chip {
  position: absolute;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border-radius: 16px;
  background: rgba(28, 14, 54, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.14);
  backdrop-filter: blur(14px);
  box-shadow: 0 20px 40px -22px rgba(0, 0, 0, 0.9);
  font-size: 13px;
  color: rgba(255, 255, 255, 0.9);
  animation: float 11s ease-in-out infinite;
}
.hero__chip .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #4ADE80;
  box-shadow: 0 0 0 4px rgba(74, 222, 128, 0.16);
}
.hero__chip--a { top: 9%; left: -8%; }
.hero__chip--b { bottom: 13%; left: -6%; animation-delay: -5s; }
.hero__chip b { color: #fff; }
.hero__chip .ico {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 9px;
  background: linear-gradient(140deg, var(--violet-500), var(--orange-500));
  font-size: 14px;
}

/* ---------------------------------------------------------------- 品牌条 */
.logostrip {
  background: var(--ink-800);
  border-top: 1px solid var(--line-inv);
  padding: 22px 0;
  overflow: hidden;
}
.logostrip__track {
  display: flex;
  align-items: center;
  gap: 54px;
  width: max-content;
  animation: marquee 34s linear infinite;
}
.logostrip__item {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 14px;
  letter-spacing: 0.1em;
  color: rgba(255, 255, 255, 0.44);
  white-space: nowrap;
}
.logostrip__item::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--orange-500);
  opacity: 0.8;
}
@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ---------------------------------------------------------------- 卡片 */
.card {
  position: relative;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 34px;
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease),
    border-color 0.4s var(--ease);
}
.card--hover:hover {
  transform: translateY(-6px);
  border-color: var(--violet-200);
  box-shadow: var(--sh-md);
}
.card--glass {
  background: rgba(255, 255, 255, 0.055);
  border-color: var(--line-inv);
  backdrop-filter: blur(12px);
  color: var(--text-inv);
}
.card--violet {
  background: linear-gradient(150deg, #F6F0FF, #FDF8FF 60%, #FFF4EC);
  border-color: #E7DBFF;
}

.grid { display: grid; gap: 24px; }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid--5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }

.ico-box {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border-radius: 16px;
  background: linear-gradient(150deg, var(--violet-50), #FFF1E7);
  border: 1px solid #ECE0FF;
  color: var(--violet-600);
}
.ico-box svg { width: 26px; height: 26px; }
.ico-box--warm {
  background: linear-gradient(150deg, var(--orange-50), #FFF7F1);
  border-color: #FFE0CB;
  color: var(--orange-600);
}
.ico-box--dark {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--line-inv);
  color: var(--violet-200);
}

.feature { display: flex; flex-direction: column; gap: 16px; }
.feature .h3 { margin-top: 4px; }
.feature p { color: var(--text-2); font-size: 15px; line-height: 1.8; }

.bullet { display: flex; gap: 11px; align-items: flex-start; font-size: 14.5px; color: var(--text-2); }
.bullet svg { flex: none; margin-top: 5px; color: var(--violet-500); }
.section--dark .bullet { color: var(--text-inv-2); }
.section--dark .bullet svg { color: var(--violet-400); }

/* ---------------------------------------------------------------- 对比表 */
.compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
  align-items: stretch;
}
.compare__col {
  border-radius: var(--r-lg);
  padding: 34px;
  border: 1px solid var(--line);
  background: var(--paper);
}
.compare__col--old { background: #F7F4EF; border-color: #E7DFD3; }
.compare__col--new {
  position: relative;
  background: linear-gradient(158deg, #1C0E3C, #2B1457 58%, #3A1A5E);
  border-color: transparent;
  color: var(--text-inv);
  box-shadow: var(--sh-glow);
  overflow: hidden;
}
.compare__col--new::after {
  content: "";
  position: absolute;
  width: 320px;
  height: 320px;
  right: -120px;
  top: -140px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(242, 103, 34, 0.42), transparent 66%);
  filter: blur(40px);
}
.compare__tag {
  display: inline-flex;
  align-items: center;
  height: 26px;
  padding: 0 11px;
  border-radius: 999px;
  font-size: 12px;
  letter-spacing: 0.08em;
  font-weight: 600;
}
.compare__col--old .compare__tag { background: #EDE7DD; color: #8A8072; }
.compare__col--new .compare__tag {
  background: rgba(255, 255, 255, 0.12);
  color: #FFD3B6;
  border: 1px solid rgba(255, 255, 255, 0.16);
}
.compare__title { font-size: 24px; font-weight: 700; margin-top: 18px; letter-spacing: -0.01em; }
.compare__col--new .compare__title { color: #fff; }
.compare__list { margin-top: 22px; display: grid; gap: 15px; position: relative; z-index: 1; }
.compare__item { display: flex; gap: 11px; align-items: flex-start; font-size: 14.5px; line-height: 1.66; }
.compare__item span:first-child {
  flex: none;
  display: grid;
  place-items: center;
  width: 20px;
  height: 20px;
  margin-top: 2px;
  border-radius: 50%;
  font-size: 11px;
  font-weight: 700;
}
.compare__col--old .compare__item { color: #7C7365; }
.compare__col--old .compare__item span:first-child { background: #E4DCD0; color: #9A9080; }
.compare__col--new .compare__item { color: rgba(255, 255, 255, 0.84); }
.compare__col--new .compare__item span:first-child {
  background: linear-gradient(140deg, #4ADE80, #22B96B);
  color: #06240F;
}

/* ---------------------------------------------------------------- 数据卡 */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
}
.stat {
  background: var(--paper);
  padding: 38px 30px;
  transition: background 0.35s var(--ease);
}
.stat:hover { background: #FCF9FF; }
.stat__num {
  font-size: clamp(34px, 3.4vw, 46px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: var(--violet-700);
  font-variant-numeric: tabular-nums;
}
.stat__num i { font-style: normal; font-size: 17px; font-weight: 600; margin-left: 3px; color: var(--orange-500); }
.stat__cap { margin-top: 10px; font-size: 14px; color: var(--text-2); }
.stat__note { margin-top: 4px; font-size: 12.5px; color: var(--text-3); }

/* ---------------------------------------------------------------- 场景 / 客群 */
.persona {
  position: relative;
  padding: 30px 28px 32px;
  border-radius: var(--r-md);
  border: 1px solid var(--line);
  background: var(--paper);
  overflow: hidden;
  transition: transform 0.38s var(--ease), box-shadow 0.38s var(--ease),
    border-color 0.38s var(--ease);
}
.persona::before {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 3px;
  background: linear-gradient(90deg, var(--violet-500), var(--orange-500));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.42s var(--ease);
}
.persona:hover {
  transform: translateY(-5px);
  border-color: #E4D6FF;
  box-shadow: var(--sh-sm);
}
.persona:hover::before { transform: scaleX(1); }
.persona__emoji { font-size: 26px; line-height: 1; }
.persona__name { margin-top: 16px; font-size: 17px; font-weight: 600; }
.persona__desc { margin-top: 8px; font-size: 14px; color: var(--text-2); line-height: 1.72; }
.persona__tag {
  margin-top: 16px;
  display: inline-flex;
  height: 24px;
  align-items: center;
  padding: 0 10px;
  border-radius: 999px;
  background: var(--violet-50);
  color: var(--violet-600);
  font-size: 12px;
  font-weight: 500;
}

/* ---------------------------------------------------------------- 城市 */
.citywall { display: flex; flex-wrap: wrap; gap: 12px; }
.city-pill {
  display: flex;
  align-items: center;
  gap: 9px;
  height: 46px;
  padding: 0 20px;
  border-radius: 999px;
  border: 1px solid var(--line-inv);
  background: rgba(255, 255, 255, 0.05);
  color: rgba(255, 255, 255, 0.82);
  font-size: 14.5px;
  transition: all 0.3s var(--ease);
}
.city-pill:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.3);
  transform: translateY(-2px);
}
.city-pill--live { border-color: rgba(123, 63, 228, 0.55); background: rgba(123, 63, 228, 0.16); }
.city-pill__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #4ADE80;
  box-shadow: 0 0 0 3px rgba(74, 222, 128, 0.18);
}
.city-pill--next .city-pill__dot { background: var(--orange-400); box-shadow: 0 0 0 3px rgba(255, 138, 61, 0.2); }
.city-pill--plan .city-pill__dot { background: rgba(255, 255, 255, 0.32); box-shadow: none; }

/* ---------------------------------------------------------------- 引用 / 口碑 */
.quote {
  position: relative;
  padding: 32px;
  border-radius: var(--r-md);
  background: var(--paper);
  border: 1px solid var(--line);
  height: 100%;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.quote__mark {
  font-size: 34px;
  line-height: 1;
  color: var(--violet-200);
  font-family: Georgia, serif;
}
.quote__text { font-size: 15.5px; line-height: 1.86; color: var(--text); }
.quote__author { display: flex; align-items: center; gap: 12px; margin-top: auto; }
.avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  flex: none;
}
.avatar--a { background: linear-gradient(140deg, #7C3AED, #A78BFA); }
.avatar--b { background: linear-gradient(140deg, #F26722, #FF9A5C); }
.avatar--c { background: linear-gradient(140deg, #2563EB, #60A5FA); }
.quote__name { font-size: 14px; font-weight: 600; }
.quote__role { font-size: 12.5px; color: var(--text-3); }

/* ---------------------------------------------------------------- 安全体系 */
.shield {
  display: flex;
  gap: 16px;
  padding: 24px 0;
  border-top: 1px solid var(--line);
}
.shield:first-child { border-top: 0; padding-top: 0; }
.shield__ico {
  flex: none;
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 13px;
  background: var(--violet-50);
  color: var(--violet-600);
  border: 1px solid #EAE0FF;
}
.shield__ico svg { width: 21px; height: 21px; }
.shield__t { font-size: 15.5px; font-weight: 600; }
.shield__d { margin-top: 3px; font-size: 13.5px; color: var(--text-2); line-height: 1.66; }

/* ---------------------------------------------------------------- 分栏 */
.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 72px;
  align-items: center;
}
.split--rev > .split__media { order: 2; }
.split__body .h2 { margin-top: 20px; }
.split__body .lede { margin-top: 18px; }
.split__list { margin-top: 30px; display: grid; gap: 14px; }

.media-frame {
  position: relative;
  border-radius: var(--r-lg);
  overflow: hidden;
  background: linear-gradient(150deg, #1B0C3B, #341A63);
  box-shadow: var(--sh-lg);
  aspect-ratio: 4 / 3.2;
  display: grid;
  place-items: center;
}
.media-frame img { width: 100%; height: 100%; object-fit: cover; }
.media-frame--tall { aspect-ratio: 4 / 4.4; }

/* ---------------------------------------------------------------- 流程 */
.flow {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  counter-reset: step;
}
.flow__item {
  position: relative;
  padding: 0 26px 0 0;
}
.flow__item::after {
  content: "";
  position: absolute;
  top: 26px;
  right: 8px;
  left: 62px;
  height: 1px;
  background: linear-gradient(90deg, var(--violet-200), transparent);
}
.flow__item:last-child::after { display: none; }
.flow__num {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  border: 1px solid var(--violet-200);
  background: var(--paper);
  color: var(--violet-600);
  font-size: 16px;
  font-weight: 700;
  position: relative;
  z-index: 1;
}
.flow__t { margin-top: 20px; font-size: 16.5px; font-weight: 600; }
.flow__d { margin-top: 8px; font-size: 14px; color: var(--text-2); line-height: 1.72; max-width: 230px; }

/* ---------------------------------------------------------------- 会员价 */
.plans { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; align-items: stretch; }
.plan {
  display: flex;
  flex-direction: column;
  padding: 34px 30px;
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  background: var(--paper);
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease);
}
.plan:hover { transform: translateY(-5px); box-shadow: var(--sh-md); }
.plan--hot {
  border-color: transparent;
  background: linear-gradient(165deg, #1C0E3C, #2B1457 60%, #3B1A60);
  color: var(--text-inv);
  box-shadow: var(--sh-glow);
  position: relative;
}
.plan--hot .plan__name, .plan--hot .plan__price, .plan--hot .plan__price b { color: #fff; }
.plan--hot .plan__unit, .plan--hot .plan__desc { color: var(--text-inv-2); }
.plan--hot .plan__li { color: rgba(255, 255, 255, 0.82); }
.plan--hot .plan__li svg { color: #4ADE80; }
.plan__badge {
  position: absolute;
  top: 22px;
  right: 24px;
  height: 24px;
  display: inline-flex;
  align-items: center;
  padding: 0 10px;
  border-radius: 999px;
  background: linear-gradient(120deg, var(--orange-500), var(--orange-400));
  color: #fff;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.04em;
}
.plan__name { font-size: 17px; font-weight: 600; color: var(--text); }
.plan__desc { margin-top: 6px; font-size: 13px; color: var(--text-3); }
.plan__price { margin-top: 22px; display: flex; align-items: baseline; gap: 5px; }
.plan__price b { font-size: 40px; font-weight: 700; letter-spacing: -0.03em; line-height: 1; color: var(--text); }
.plan__unit { font-size: 13px; color: var(--text-3); }
.plan__list { margin-top: 26px; display: grid; gap: 12px; flex: 1; }
.plan__li { display: flex; gap: 10px; align-items: flex-start; font-size: 14px; color: var(--text-2); }
.plan__li svg { flex: none; margin-top: 4px; color: var(--violet-500); }
.plan .btn { margin-top: 28px; }

/* ---------------------------------------------------------------- FAQ */
.acc { border-top: 1px solid var(--line); }
.acc__item { border-bottom: 1px solid var(--line); }
.acc__q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: 100%;
  padding: 24px 0;
  background: none;
  border: 0;
  text-align: left;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  transition: color 0.25s var(--ease);
}
.acc__q:hover { color: var(--violet-600); }
.acc__sign {
  flex: none;
  position: relative;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid var(--line);
  display: grid;
  place-items: center;
  transition: background 0.3s var(--ease), border-color 0.3s var(--ease),
    transform 0.3s var(--ease);
}
.acc__sign::before,
.acc__sign::after {
  content: "";
  position: absolute;
  background: currentColor;
  border-radius: 2px;
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
}
.acc__sign::before { width: 11px; height: 1.6px; }
.acc__sign::after { width: 1.6px; height: 11px; }
.acc__item.is-open .acc__sign {
  background: var(--violet-600);
  border-color: var(--violet-600);
  color: #fff;
}
.acc__item.is-open .acc__sign::after { transform: rotate(90deg); opacity: 0; }
.acc__a {
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.42s var(--ease);
}
.acc__a > div {
  padding: 0 44px 26px 0;
  font-size: 14.5px;
  line-height: 1.86;
  color: var(--text-2);
}

/* ---------------------------------------------------------------- 表单 */
.form { display: grid; gap: 18px; }
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { display: grid; gap: 8px; }
.field label { font-size: 13.5px; font-weight: 600; color: var(--text-2); }
.field label i { color: var(--orange-500); font-style: normal; }
.input,
.select,
.textarea {
  width: 100%;
  padding: 13px 16px;
  border: 1px solid var(--line);
  border-radius: var(--r-xs);
  background: #FDFBF8;
  font-family: inherit;
  font-size: 15px;
  color: var(--text);
  transition: border-color 0.25s var(--ease), box-shadow 0.25s var(--ease),
    background 0.25s var(--ease);
}
.textarea { min-height: 116px; resize: vertical; line-height: 1.7; }
.input:focus,
.select:focus,
.textarea:focus {
  outline: none;
  border-color: var(--violet-400);
  background: #fff;
  box-shadow: 0 0 0 4px rgba(124, 58, 237, 0.1);
}
.field__err { font-size: 12.5px; color: #DC2626; display: none; }
.field.has-err .input,
.field.has-err .select,
.field.has-err .textarea { border-color: #F87171; background: #FFF7F7; }
.field.has-err .field__err { display: block; }

.form-note { font-size: 12.5px; color: var(--text-3); line-height: 1.7; }

/* ---------------------------------------------------------------- CTA 带 */
.cta-band {
  position: relative;
  overflow: hidden;
  border-radius: var(--r-xl);
  padding: 76px 64px;
  background: radial-gradient(110% 130% at 84% 6%, #3E1C74 0%, #22104A 44%, #140828 100%);
  color: var(--text-inv);
  isolation: isolate;
}
.cta-band::before {
  content: "";
  position: absolute;
  right: -80px;
  bottom: -160px;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(242, 103, 34, 0.42), transparent 66%);
  filter: blur(50px);
  z-index: -1;
}
.cta-band .h2 { color: #fff; max-width: 620px; }
.cta-band .lede { color: var(--text-inv-2); margin-top: 16px; max-width: 520px; }
.cta-band__actions { margin-top: 34px; display: flex; flex-wrap: wrap; gap: 14px; }
.cta-band--split { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 48px; align-items: center; }

/* ---------------------------------------------------------------- 页脚 */
.site-footer {
  background: var(--ink-900);
  color: var(--text-inv);
  padding: 76px 0 30px;
  margin-top: 0;
}
.footer__top {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: 48px;
  padding-bottom: 52px;
  border-bottom: 1px solid var(--line-inv);
}
.footer__brand .brand__name { color: #fff; }
.footer__brand .brand__sub { color: rgba(255, 255, 255, 0.42); }
.footer__slogan {
  margin-top: 20px;
  font-size: 14px;
  line-height: 1.86;
  color: var(--text-inv-2);
  max-width: 300px;
}
.footer__contact { margin-top: 22px; display: grid; gap: 8px; font-size: 13.5px; color: var(--text-inv-2); }
.footer__contact b { color: #fff; font-weight: 600; }
.footer__col h5 {
  margin: 0 0 16px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: rgba(255, 255, 255, 0.44);
  text-transform: uppercase;
}
.footer__col li + li { margin-top: 11px; }
.footer__col a { font-size: 14px; color: var(--text-inv-2); transition: color 0.25s var(--ease); }
.footer__col a:hover { color: #fff; }
.footer__bottom {
  padding-top: 26px;
  display: flex;
  flex-wrap: wrap;
  gap: 14px 26px;
  align-items: center;
  justify-content: space-between;
  font-size: 12.5px;
  color: rgba(255, 255, 255, 0.4);
  line-height: 1.8;
}
.footer__bottom a:hover { color: #fff; }

/* ---------------------------------------------------------------- 动效 */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
  will-change: opacity, transform;
}
.reveal.is-in { opacity: 1; transform: none; }
.reveal[data-d="1"] { transition-delay: 0.08s; }
.reveal[data-d="2"] { transition-delay: 0.16s; }
.reveal[data-d="3"] { transition-delay: 0.24s; }
.reveal[data-d="4"] { transition-delay: 0.32s; }
.reveal[data-d="5"] { transition-delay: 0.4s; }

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

/* ---------------------------------------------------------------- 内页头部 */
.page-head {
  position: relative;
  padding: calc(var(--nav-h) + 88px) 0 84px;
  background: radial-gradient(110% 120% at 82% 0%, #34176B 0%, #1B0C3B 46%, #100620 100%);
  color: var(--text-inv);
  overflow: hidden;
  isolation: isolate;
}
.page-head::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(to right, rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 68px 68px;
  -webkit-mask-image: radial-gradient(70% 80% at 30% 0%, #000, transparent 76%);
  mask-image: radial-gradient(70% 80% at 30% 0%, #000, transparent 76%);
  z-index: -1;
}
.page-head .h1 { font-size: clamp(38px, 4.6vw, 60px); margin-top: 20px; }
.page-head .lede { color: var(--text-inv-2); max-width: 640px; margin-top: 22px; }
.crumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.46);
}
.crumb a:hover { color: #fff; }
.crumb__sep { opacity: 0.5; }

/* ---------------------------------------------------------------- Tab */
.tabs {
  display: inline-flex;
  padding: 5px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--line-inv);
  gap: 4px;
  flex-wrap: wrap;
}
.tab {
  height: 38px;
  padding: 0 18px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: rgba(255, 255, 255, 0.66);
  font-size: 14px;
  cursor: pointer;
  transition: all 0.28s var(--ease);
}
.tab:hover { color: #fff; }
.tab.is-active { background: #fff; color: var(--ink-800); font-weight: 600; }
.tab-panel { display: none; }
.tab-panel.is-active { display: block; animation: fadeUp 0.5s var(--ease); }
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: none; }
}

/* ---------------------------------------------------------------- 法务正文 */
.doc { max-width: 820px; }
.doc h2 { font-size: 22px; font-weight: 700; margin: 44px 0 14px; letter-spacing: -0.01em; }
.doc h2:first-child { margin-top: 0; }
.doc h3 { font-size: 17px; font-weight: 600; margin: 26px 0 10px; }
.doc p { font-size: 15px; line-height: 1.92; color: var(--text-2); margin-bottom: 14px; }
.doc ul { margin: 0 0 16px; padding-left: 4px; display: grid; gap: 9px; }
.doc li {
  font-size: 15px;
  line-height: 1.86;
  color: var(--text-2);
  padding-left: 18px;
  position: relative;
}
.doc li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 12px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--violet-400);
}
.doc__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  padding: 16px 20px;
  border-radius: var(--r-sm);
  background: var(--violet-50);
  border: 1px solid #EAE0FF;
  font-size: 13px;
  color: var(--text-2);
  margin-bottom: 34px;
}
.doc__meta b { color: var(--violet-700); }

/* ---------------------------------------------------------------- 资讯 */
.post {
  display: grid;
  grid-template-columns: 190px minmax(0, 1fr);
  gap: 30px;
  padding: 30px 0;
  border-top: 1px solid var(--line);
  transition: background 0.3s var(--ease);
}
.post:first-of-type { border-top: 0; }
.post__date {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 13px;
  color: var(--text-3);
}
.post__date b { font-size: 15px; color: var(--text-2); font-weight: 600; }
.post__tag {
  align-self: flex-start;
  margin-top: 8px;
  display: inline-flex;
  height: 22px;
  align-items: center;
  padding: 0 9px;
  border-radius: 999px;
  background: var(--violet-50);
  color: var(--violet-600);
  font-size: 11.5px;
  font-weight: 600;
}
.post__t { font-size: 19px; font-weight: 600; transition: color 0.25s var(--ease); }
.post:hover .post__t { color: var(--violet-600); }
.post__d { margin-top: 8px; font-size: 14.5px; color: var(--text-2); line-height: 1.8; }

/* ---------------------------------------------------------------- 响应式 */
@media (max-width: 1180px) {
  .hero__inner { gap: 40px; }
  .phone { width: 264px; }
  .phone--ghost { width: 206px; right: -2%; }
  .split { gap: 48px; }
}

@media (max-width: 1024px) {
  .section { padding: 90px 0; }
  .hero { min-height: auto; padding-top: calc(var(--nav-h) + 56px); }
  .hero__inner { grid-template-columns: 1fr; gap: 56px; }
  .hero__visual { min-height: 520px; }
  .hero__meta { margin-top: 40px; }
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid--5 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stat-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .split { grid-template-columns: 1fr; gap: 40px; }
  .split--rev > .split__media { order: 0; }
  .flow { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 34px 0; }
  .flow__item:nth-child(2n)::after { display: none; }
  .footer__top { grid-template-columns: 1fr 1fr; gap: 40px; }
  .cta-band { padding: 56px 40px; }
  .cta-band--split { grid-template-columns: 1fr; gap: 32px; }
  .plans { grid-template-columns: 1fr; }
  .plan--hot { order: -1; }
}

@media (max-width: 860px) {
  .nav { display: none; }
  .nav-toggle { display: block; }
  .header__actions .btn:not(.btn--sm) { display: none; }
  .header__actions .btn--outline { display: none; }
  .header__actions { flex: none; gap: 8px; }
  .header__actions .btn--sm { height: 38px; padding: 0 15px; font-size: 13.5px; }
  .nav-toggle { flex: none; }
  .site-header__inner { gap: 12px; padding: 0 18px; }

  .nav.is-open {
    display: flex;
    position: fixed;
    inset: var(--nav-h) 0 auto;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    padding: 18px 24px 28px;
    background: rgba(250, 246, 240, 0.98);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--line);
    box-shadow: var(--sh-md);
    animation: fadeUp 0.32s var(--ease);
  }
  .site-header.is-dark .nav.is-open { background: rgba(18, 7, 38, 0.98); }
  .nav.is-open .nav__link { padding: 13px 14px; border-radius: 12px; font-size: 16px; }
  .nav.is-open .nav__link.is-active::after { display: none; }

  .container { padding: 0 22px; }
  .site-header__inner { padding: 0 22px; }
  .hero__chip { display: none; }
  .phone--ghost { display: none; }
  .hero__visual { min-height: auto; }
  .compare { grid-template-columns: 1fr; }
  .grid--2, .grid--3, .grid--4, .grid--5 { grid-template-columns: 1fr; }
  .stat-grid { grid-template-columns: 1fr; }
  .flow { grid-template-columns: 1fr; }
  .flow__item::after { display: none; }
  .flow__d { max-width: none; }
  .hero__meta { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
  .hero__meta-item .num { font-size: 24px; }
  .footer__top { grid-template-columns: 1fr; gap: 34px; }
  .cta-band { padding: 44px 26px; border-radius: var(--r-lg); }
  .post { grid-template-columns: 1fr; gap: 10px; }
  .form__row { grid-template-columns: 1fr; }
  .page-head { padding: calc(var(--nav-h) + 60px) 0 60px; }
  .section { padding: 68px 0; }
  .card { padding: 26px; }
  .doc h2 { font-size: 19px; }
}

/* ---------------------------------------------------------------- 展示台 */
.showcase {
  position: relative;
  border-radius: var(--r-lg);
  overflow: hidden;
  padding: 54px 0 44px;
  display: flex;
  justify-content: center;
  background: radial-gradient(120% 100% at 72% 0%, #3A1B6E 0%, #1B0C3B 54%, #120726 100%);
  box-shadow: var(--sh-lg);
  isolation: isolate;
}
.showcase::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(to right, rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(70% 70% at 50% 10%, #000, transparent 80%);
  mask-image: radial-gradient(70% 70% at 50% 10%, #000, transparent 80%);
  z-index: -1;
}
.showcase .phone {
  width: 250px;
  transform: rotate(-2.2deg);
  animation: none;
}
.showcase__cap {
  position: absolute;
  left: 24px;
  top: 24px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 30px;
  padding: 0 13px;
  border-radius: 999px;
  border: 1px solid var(--line-inv);
  background: rgba(255, 255, 255, 0.07);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: rgba(255, 255, 255, 0.78);
  backdrop-filter: blur(8px);
}
.showcase__cap .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: #4ADE80;
  box-shadow: 0 0 0 3px rgba(74, 222, 128, 0.18);
}

/* ---------------------------------------------------------------- 标签 */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  height: 30px;
  padding: 0 13px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--paper);
  font-size: 13px;
  color: var(--text-2);
}
.chip--violet { background: var(--violet-50); border-color: #E9DEFF; color: var(--violet-700); }
.chip--warm { background: var(--orange-50); border-color: #FFE2CE; color: var(--orange-600); }
.chip-row { display: flex; flex-wrap: wrap; gap: 10px; }

/* ---------------------------------------------------------------- 时间轴 */
.timeline { position: relative; }
.timeline::before {
  content: "";
  position: absolute;
  left: 5px; top: 10px; bottom: 24px;
  width: 1px;
  background: linear-gradient(180deg, var(--violet-400), rgba(124,58,237,.12));
}
.tl-item { position: relative; padding: 0 0 38px 42px; }
.tl-item:last-child { padding-bottom: 0; }
.tl-item::before {
  content: "";
  position: absolute;
  left: 0; top: 6px;
  width: 11px; height: 11px;
  border-radius: 50%;
  background: #fff;
  border: 2px solid var(--violet-500);
  box-shadow: 0 0 0 4px rgba(124, 58, 237, 0.12);
}
.tl-item.is-now::before {
  background: var(--orange-500);
  border-color: var(--orange-500);
  box-shadow: 0 0 0 4px rgba(242, 103, 34, 0.14);
}
.tl-date { font-size: 12.5px; font-weight: 600; letter-spacing: 0.06em; color: var(--violet-600); }
.tl-t { margin-top: 5px; font-size: 17px; font-weight: 600; }
.tl-d { margin-top: 6px; font-size: 14px; line-height: 1.8; color: var(--text-2); }

/* ---------------------------------------------------------------- 规格表 */
.kv { border-top: 1px solid var(--line); }
.kv__row {
  display: grid;
  grid-template-columns: 190px minmax(0, 1fr);
  gap: 24px;
  padding: 17px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14.5px;
}
.kv__k { color: var(--text-3); }
.kv__v { color: var(--text); font-weight: 500; }
.kv__v .pending {
  display: inline-flex;
  align-items: center;
  height: 22px;
  padding: 0 9px;
  border-radius: 999px;
  background: var(--orange-50);
  border: 1px solid #FFE2CE;
  color: var(--orange-600);
  font-size: 11.5px;
  font-weight: 600;
  margin-left: 8px;
}

/* ---------------------------------------------------------------- 侧栏布局 */
.side-layout {
  display: grid;
  grid-template-columns: 232px minmax(0, 1fr);
  gap: 64px;
  align-items: start;
}
.side-nav { position: sticky; top: calc(var(--nav-h) + 28px); display: grid; gap: 2px; }
.side-nav__t {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--text-3);
  text-transform: uppercase;
  margin-bottom: 14px;
}
.side-nav a {
  padding: 10px 14px;
  border-radius: 10px;
  font-size: 14.5px;
  color: var(--text-2);
  transition: all 0.24s var(--ease);
  border-left: 2px solid transparent;
}
.side-nav a:hover { background: var(--violet-50); color: var(--violet-700); }
.side-nav a.is-active {
  background: var(--violet-50);
  color: var(--violet-700);
  font-weight: 600;
  border-left-color: var(--violet-500);
}

@media (max-width: 1024px) {
  .side-layout { grid-template-columns: 1fr; gap: 28px; }
  .side-nav { position: static; display: flex; flex-wrap: wrap; gap: 8px; }
  .side-nav__t { width: 100%; margin-bottom: 4px; }
  .side-nav a { border: 1px solid var(--line); border-radius: 999px; padding: 8px 15px; }
  .kv__row { grid-template-columns: 1fr; gap: 4px; }
}

/* ---------------------------------------------------------------- 功能栅格 3+2 */
.grid--feat {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 22px;
}
.grid--feat > .feat-lg { grid-column: span 3; }
.grid--feat > .feat-sm { grid-column: span 2; }
@media (max-width: 1024px) {
  .grid--feat { grid-template-columns: 1fr; }
  .grid--feat > * { grid-column: auto; }
}

/* 深色头部里的描边按钮 */
.site-header.is-dark .btn--outline {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.26);
}
.site-header.is-dark .btn--outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.5);
  color: #fff;
}

/* 大号引言 */
.bigquote {
  font-size: clamp(22px, 2.6vw, 34px);
  line-height: 1.5;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text);
}
.section--dark .bigquote { color: #fff; }

/* 迷你图示行 */
.mini-row { display: flex; align-items: center; gap: 8px; font-size: 12.5px; color: var(--text-3); }
.mini-row .k { color: var(--text-2); font-weight: 600; }

/* ---------------------------------------------------------------- 手机内 UI 示意 */
.mock-screen {
  background: linear-gradient(180deg, #F6F3FD, #EFEAFB);
  padding: 0;
  display: flex;
  flex-direction: column;
  font-family: var(--font);
}
.mock-head {
  background: linear-gradient(120deg, #6D33D6, #8B4BEF);
  color: #fff;
}
.mock-status { height: 32px; }
.mock-top {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  height: 30px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
}
.mock-top .back {
  position: absolute;
  left: 11px;
  font-size: 15px;
  opacity: 0.9;
}
.mock-banner {
  margin: 10px 10px 0;
  padding: 10px 11px;
  border-radius: 12px;
  background: linear-gradient(120deg, #F1E9FF, #FFF2E8);
  border: 1px solid #EADFFC;
}
.mock-banner b { display: block; font-size: 10.5px; color: var(--violet-700); font-weight: 700; }
.mock-banner span { display: block; margin-top: 3px; font-size: 8.5px; color: var(--text-3); line-height: 1.5; }

.mock-sec {
  margin: 11px 12px 7px;
  font-size: 9.5px;
  font-weight: 700;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 5px;
}
.mock-sec::before {
  content: "";
  width: 2.5px;
  height: 10px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--violet-500), var(--orange-500));
}
.mock-list { display: grid; gap: 7px; padding: 0 10px 12px; }
.mock-card {
  display: flex;
  gap: 8px;
  padding: 9px 10px;
  border-radius: 12px;
  background: #fff;
  box-shadow: 0 4px 12px -8px rgba(27, 18, 51, 0.24);
}
.mock-ava {
  flex: none;
  width: 26px;
  height: 26px;
  border-radius: 9px;
  display: grid;
  place-items: center;
  font-size: 10px;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(140deg, #7C3AED, #A78BFA);
}
.mock-card:nth-child(2) .mock-ava { background: linear-gradient(140deg, #F26722, #FF9A5C); }
.mock-card:nth-child(3) .mock-ava { background: linear-gradient(140deg, #2563EB, #60A5FA); }
.mock-body { flex: 1; min-width: 0; }
.mock-row { display: flex; align-items: baseline; justify-content: space-between; gap: 6px; }
.mock-name { font-size: 9.5px; font-weight: 700; color: var(--text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.mock-score { font-size: 12px; font-weight: 700; color: var(--violet-600); font-variant-numeric: tabular-nums; }
.mock-score small { font-size: 7.5px; font-weight: 600; margin-left: 1px; }
.mock-tags { display: flex; flex-wrap: wrap; gap: 3px; margin-top: 5px; }
.mock-tags i {
  font-style: normal;
  font-size: 7.5px;
  line-height: 1;
  padding: 3px 5px;
  border-radius: 4px;
  background: var(--violet-50);
  color: var(--violet-700);
}
.mock-tags i.warm { background: var(--orange-50); color: var(--orange-600); }
.mock-why { margin-top: 5px; font-size: 7.5px; color: var(--text-3); }
.mock-foot {
  margin-top: auto;
  padding: 8px 10px 10px;
  display: flex;
  gap: 6px;
}
.mock-btn {
  flex: 1;
  height: 26px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  font-size: 9px;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(120deg, #6D33D6, #8B4BEF);
}
.mock-btn.ghost { background: #fff; color: var(--violet-600); border: 1px solid #E4D9FA; }

/* ---------------------------------------------------------------- 分层结构 */
.layer { display: flex; gap: 18px; padding: 22px 0; border-top: 1px solid var(--line); }
.layer:first-child { border-top: 0; padding-top: 0; }
.layer:last-child { padding-bottom: 0; }
.layer__n {
  flex: none;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.02em;
  background: var(--violet-50);
  color: var(--violet-600);
  border: 1px solid #EADFFF;
}
.layer__t { font-size: 15.5px; font-weight: 600; }
.layer__d { margin-top: 5px; font-size: 13.5px; line-height: 1.72; color: var(--text-2); }