/* ============================================================
   曙图科技设计系统 v2 · 暖象牙 + 深墨蓝 + 古金
   要点：告别纯白配纯黑的扁平感；彩色强调按站点注入；
        动效全部走 .anim 开关，无 JS / 关闭动效时内容一律可见
   ============================================================ */

:root {
  /* 底色：暖象牙，不用纯白 */
  --paper: #fbf8f3;
  --paper-2: #f5f0e8;
  --paper-3: #ece5da;
  --card: #fffdf9;

  /* 重色：深墨蓝，不用纯黑 */
  --night: #12203a;
  --night-2: #0c1729;
  --ink: #1c2a3a;
  --body: #55637a;
  --muted: #8593a6;

  --line: rgba(28, 42, 58, 0.1);
  --line-2: rgba(28, 42, 58, 0.18);

  /* 强调：古金 + 每站一个柔和彩色 */
  --gold: #b4894a;
  --gold-2: #d9b46f;
  --accent: #1d4f7d;
  --accent-soft: #eef2f6;
  --accent-soft: color-mix(in srgb, var(--accent) 9%, #fff);
  --accent-ink: color-mix(in srgb, var(--accent) 78%, var(--night));

  --radius: 8px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  --shadow-1: 0 1px 2px rgba(18, 32, 58, 0.05), 0 6px 18px -10px rgba(18, 32, 58, 0.12);
  --shadow-2: 0 2px 6px rgba(18, 32, 58, 0.06), 0 24px 48px -24px rgba(18, 32, 58, 0.26);
  --shadow-glow: 0 24px 60px -28px color-mix(in srgb, var(--accent) 45%, transparent);

  --maxw: 1280px;
  --gutter: clamp(20px, 3.2vw, 40px);
  --sec-y: clamp(66px, 8.5vw, 130px);

  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
  --font-num: "SF Mono", "JetBrains Mono", Consolas, "Segoe UI", sans-serif;
}

/* ---------- 基础 ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}
html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}
body {
  margin: 0;
  font-family: var(--font);
  font-size: 16.5px;
  line-height: 1.82;
  color: var(--body);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}
h1,
h2,
h3,
h4 {
  margin: 0 0 0.5em;
  color: var(--ink);
  font-weight: 700;
  line-height: 1.22;
  letter-spacing: -0.018em;
}
h1 {
  font-size: clamp(34px, 5.6vw, 62px);
  line-height: 1.12;
}
h2 {
  font-size: clamp(25px, 3.4vw, 40px);
}
h3 {
  font-size: 20px;
}
h4 {
  font-size: 16.5px;
}
p {
  margin: 0 0 1em;
}
a {
  color: inherit;
  text-decoration: none;
  transition: color 0.22s var(--ease), opacity 0.22s var(--ease);
}
img,
svg {
  display: block;
  max-width: 100%;
  height: auto;
}
ul,
ol {
  margin: 0 0 1em;
  padding-left: 1.2em;
}
li {
  margin-bottom: 0.45em;
}
b,
strong {
  color: var(--ink);
  font-weight: 600;
}
hr {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 40px 0;
}
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}
::selection {
  background: color-mix(in srgb, var(--gold) 30%, #fff);
  color: var(--night);
}

/* ---------- 版式工具 ---------- */
.shell {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--gutter);
}
.shell--narrow {
  max-width: 920px;
}
.section {
  padding: var(--sec-y) 0;
  position: relative;
}
.section--paper2 {
  background: linear-gradient(180deg, var(--paper) 0%, var(--paper-2) 34%, var(--paper) 100%);
}
.section--tint {
  background: linear-gradient(160deg, var(--accent-soft) 0%, var(--paper) 70%);
}
.section--ink {
  background: radial-gradient(120% 120% at 12% 0%, color-mix(in srgb, var(--accent) 40%, var(--night)) 0%, var(--night) 58%, var(--night-2) 100%);
  color: rgba(255, 255, 255, 0.78);
}
.section--ink h2,
.section--ink h3,
.section--ink h4 {
  color: #fff;
}
.section--tight {
  padding: clamp(40px, 5vw, 70px) 0;
}
.section--flush {
  padding-top: 0;
}

.head {
  max-width: 780px;
  margin-bottom: clamp(34px, 4.4vw, 56px);
}
.head h2 {
  margin-bottom: 14px;
}
.head p {
  margin: 0;
  color: var(--muted);
  font-size: 17px;
}
.head--center {
  margin: 0 auto clamp(34px, 4.4vw, 56px);
  text-align: center;
}
.section--ink .head p {
  color: rgba(255, 255, 255, 0.66);
}

.kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
}
.kicker::before {
  content: '';
  width: 24px;
  height: 1px;
  background: currentColor;
}
.section--ink .kicker {
  color: var(--gold-2);
}

.lede {
  font-size: clamp(17px, 1.6vw, 20px);
  line-height: 1.85;
  color: var(--ink);
  font-weight: 400;
}
.muted {
  color: var(--muted);
}
.small {
  font-size: 14px;
  line-height: 1.7;
}
.mono {
  font-family: font-num, monospace;
  font-family: var(--font-num);
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--muted);
}
.grid {
  display: grid;
  gap: clamp(18px, 2vw, 26px);
}
.g2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.g3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.g4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

/* ---------- 图片与滤镜 ---------- */
.media {
  position: relative;
  overflow: hidden;
  background: var(--paper-3);
}
.media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.9) contrast(1.03);
}
.media::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(155deg, color-mix(in srgb, var(--accent) 14%, transparent) 0%, transparent 52%);
  pointer-events: none;
}
.media--r {
  border-radius: var(--radius-lg);
}
.ratio-16x9 {
  aspect-ratio: 16 / 9;
}
.ratio-4x3 {
  aspect-ratio: 4 / 3;
}
.ratio-3x2 {
  aspect-ratio: 3 / 2;
}
.ratio-1x1 {
  aspect-ratio: 1 / 1;
}
/* 首屏照片的缓慢推移：让静态图有呼吸感 */
.kenburns img {
  animation: kb 22s ease-in-out infinite alternate;
}
@keyframes kb {
  from {
    transform: scale(1.02) translate3d(0, 0, 0);
  }
  to {
    transform: scale(1.12) translate3d(-1.5%, -1.5%, 0);
  }
}

/* ---------- 按钮 ---------- */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 15px 28px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  overflow: hidden;
  white-space: nowrap;
  transition: transform 0.24s var(--ease), box-shadow 0.24s var(--ease), background 0.24s var(--ease);
}
.btn::after {
  /* 掠过的高光 */
  content: '';
  position: absolute;
  top: 0;
  left: -120%;
  width: 60%;
  height: 100%;
  background: linear-gradient(100deg, transparent, rgba(255, 255, 255, 0.42), transparent);
  transition: left 0.6s var(--ease);
}
.btn:hover::after {
  left: 140%;
}
.btn--gold {
  background: linear-gradient(135deg, var(--gold-2), var(--gold));
  color: #2c2208;
  box-shadow: 0 14px 30px -16px color-mix(in srgb, var(--gold) 70%, transparent);
}
.btn--gold:hover {
  transform: translateY(-2px);
  box-shadow: 0 20px 40px -18px color-mix(in srgb, var(--gold) 80%, transparent);
}
.btn--ink {
  background: var(--night);
  color: #fff;
}
.btn--ink:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-2);
}
.btn--accent {
  background: linear-gradient(135deg, var(--accent), var(--accent-ink));
  color: #fff;
  box-shadow: var(--shadow-glow);
}
.btn--accent:hover {
  transform: translateY(-2px);
}
.btn--line {
  border-color: var(--line-2);
  color: var(--ink);
  background: color-mix(in srgb, var(--card) 70%, transparent);
}
.btn--line:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.btn--ghost {
  border-color: rgba(255, 255, 255, 0.42);
  color: #fff;
  background: rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(4px);
}
.btn--ghost:hover {
  border-color: #fff;
  background: rgba(255, 255, 255, 0.14);
}
.btn--sm {
  padding: 11px 20px;
  font-size: 14px;
}
.btnrow {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}
.linkarrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 15px;
  color: var(--accent);
}
.linkarrow svg {
  transition: transform 0.24s var(--ease);
}
.linkarrow:hover svg {
  transform: translateX(4px);
}

/* ---------- 卡片 ---------- */
.card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 28px 28px 26px;
  box-shadow: var(--shadow-1);
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease), border-color 0.3s var(--ease);
  height: 100%;
}
.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-2);
  border-color: color-mix(in srgb, var(--accent) 26%, var(--line));
}
.card h3,
.card h4 {
  margin-bottom: 8px;
  font-size: 18.5px;
}
.card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
}
.card::before {
  /* 顶部彩条：hover 时展开 */
  content: '';
  position: absolute;
  left: 28px;
  top: 0;
  height: 3px;
  width: 0;
  border-radius: 0 0 3px 3px;
  background: linear-gradient(90deg, var(--accent), var(--gold));
  transition: width 0.4s var(--ease);
}
.card:hover::before {
  width: 46px;
}
.card__more {
  margin-top: 16px;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--accent);
}
.card__more::after {
  content: ' →';
}
.card__num {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-num);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--gold);
}
.card--media {
  padding: 0;
  overflow: hidden;
}
.card--media .media {
  aspect-ratio: 3 / 2;
  border-radius: 0;
}
.card--media .media img {
  transition: transform 0.7s var(--ease);
}
.card--media:hover .media img {
  transform: scale(1.07);
}
.card--media .card__body {
  padding: 24px 26px 26px;
}
.card--media::before {
  left: 0;
  top: auto;
  bottom: 0;
  width: 0;
  height: 3px;
  border-radius: 0;
}
.card--media:hover::before {
  width: 100%;
}

.monogram {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  margin-bottom: 18px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--accent-soft), color-mix(in srgb, var(--gold) 12%, #fff));
  border: 1px solid color-mix(in srgb, var(--accent) 14%, transparent);
  color: var(--accent);
  font-size: 13.5px;
  font-weight: 700;
}

/* ---------- 滚动进度条 ---------- */
.scrollbar-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0;
  z-index: 90;
  background: linear-gradient(90deg, var(--accent), var(--gold-2));
  transition: width 0.1s linear;
}

/* ---------- 页头 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: color-mix(in srgb, var(--paper) 82%, transparent);
  backdrop-filter: blur(18px) saturate(1.5);
  border-bottom: 1px solid var(--line);
  transition: box-shadow 0.3s var(--ease), background 0.3s var(--ease);
}
.site-header.is-stuck {
  box-shadow: 0 10px 30px -20px rgba(18, 32, 58, 0.4);
  background: color-mix(in srgb, var(--paper) 94%, transparent);
}
.site-header__in {
  display: flex;
  align-items: center;
  gap: 26px;
  height: 74px;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  font-size: 17.5px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--night);
  white-space: nowrap;
}
.logo__mark {
  width: 34px;
  height: 34px;
  flex: none;
  transition: transform 0.5s var(--ease);
}
.logo:hover .logo__mark {
  transform: rotate(-8deg) scale(1.05);
}
.logo__sub {
  padding-left: 11px;
  border-left: 1px solid var(--line-2);
  font-size: 12.5px;
  font-weight: 500;
  color: var(--muted);
}
.nav {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-left: auto;
}
.nav a {
  position: relative;
  padding: 9px 14px;
  font-size: 15px;
  font-weight: 500;
  color: var(--ink);
  border-radius: 999px;
}
.nav a:hover {
  color: var(--accent);
  background: var(--accent-soft);
}
.nav a[aria-current='page'] {
  color: var(--accent);
  font-weight: 600;
  background: var(--accent-soft);
}
.nav__cta {
  margin-left: 12px;
}
.burger {
  display: none;
  margin-left: auto;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--card);
  cursor: pointer;
}
.burger span {
  display: block;
  width: 17px;
  height: 1.6px;
  margin: 4px auto;
  background: var(--night);
  transition: transform 0.25s var(--ease), opacity 0.25s var(--ease);
}
.burger[aria-expanded='true'] span:nth-child(1) {
  transform: translateY(5.6px) rotate(45deg);
}
.burger[aria-expanded='true'] span:nth-child(2) {
  opacity: 0;
}
.burger[aria-expanded='true'] span:nth-child(3) {
  transform: translateY(-5.6px) rotate(-45deg);
}

/* ---------- 首屏：满幅照片 + 遮罩 ---------- */
.hero {
  position: relative;
  min-height: clamp(560px, 78vh, 830px);
  display: flex;
  align-items: center;
  padding: clamp(56px, 8vw, 110px) 0 clamp(48px, 6vw, 84px);
  overflow: hidden;
  color: #fff;
}
.hero__photo {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero__photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.86) contrast(1.05);
}
.hero__photo::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(12, 23, 41, 0.94) 0%, rgba(12, 23, 41, 0.78) 42%, rgba(12, 23, 41, 0.34) 78%, rgba(12, 23, 41, 0.18) 100%);
}
.hero__glow {
  position: absolute;
  right: -8%;
  top: -14%;
  width: 46vw;
  height: 46vw;
  max-width: 620px;
  max-height: 620px;
  border-radius: 50%;
  background: radial-gradient(circle, color-mix(in srgb, var(--gold) 40%, transparent) 0%, transparent 62%);
  filter: blur(6px);
  z-index: 1;
  animation: floaty 16s ease-in-out infinite alternate;
}
@keyframes floaty {
  from {
    transform: translate3d(0, 0, 0) scale(1);
  }
  to {
    transform: translate3d(-4%, 6%, 0) scale(1.08);
  }
}
.hero__in {
  position: relative;
  z-index: 2;
  max-width: 760px;
}
.hero h1 {
  color: #fff;
  margin-bottom: 20px;
}
.hero__accent {
  color: var(--gold-2);
}
.hero .lede {
  color: rgba(255, 255, 255, 0.86);
  max-width: 640px;
  margin-bottom: 32px;
}
.hero__trust {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin-top: 34px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.72);
}
.hero__trust span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.hero__trust span::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gold-2);
}
.hero__cue {
  position: absolute;
  left: 50%;
  bottom: 22px;
  z-index: 2;
  transform: translateX(-50%);
  font-size: 11.5px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.55);
}
.hero__cue::after {
  content: '';
  display: block;
  width: 1px;
  height: 34px;
  margin: 8px auto 0;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.7), transparent);
  animation: cue 2.4s var(--ease) infinite;
}
@keyframes cue {
  0% {
    transform: scaleY(0.2);
    transform-origin: top;
    opacity: 0.2;
  }
  60% {
    transform: scaleY(1);
    opacity: 1;
  }
  100% {
    transform: scaleY(1);
    opacity: 0;
  }
}

/* ---------- 子站内页封面：文 + 大图 ---------- */
.cover {
  position: relative;
  padding: clamp(46px, 6vw, 92px) 0 clamp(40px, 5vw, 72px);
  background: linear-gradient(160deg, var(--paper) 0%, var(--accent-soft) 60%, var(--paper-2) 100%);
  overflow: hidden;
}
.cover::before {
  content: '';
  position: absolute;
  left: -10vw;
  bottom: -14vw;
  width: 34vw;
  height: 34vw;
  max-width: 460px;
  max-height: 460px;
  border-radius: 50%;
  background: radial-gradient(circle, color-mix(in srgb, var(--accent) 18%, transparent), transparent 65%);
}
.cover__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.02fr 0.98fr;
  gap: clamp(30px, 5vw, 66px);
  align-items: center;
}
.cover__grid .media {
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-2);
}
.cover h1 {
  font-size: clamp(30px, 4.4vw, 52px);
}
.cover .lede {
  max-width: 620px;
}
.cover__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  margin-top: 22px;
  font-size: 14px;
  color: var(--ink);
}
.cover__meta .dot::before {
  content: '';
  display: inline-block;
  width: 5px;
  height: 5px;
  margin: 0 8px 2px 0;
  border-radius: 50%;
  background: var(--gold);
}
.float-chip {
  position: absolute;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border-radius: 14px;
  background: color-mix(in srgb, var(--card) 92%, transparent);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-2);
  font-size: 13px;
  color: var(--ink);
  animation: floaty 12s ease-in-out infinite alternate;
}
.float-chip b {
  font-family: var(--font-num);
  font-size: 19px;
  color: var(--accent);
}

/* ---------- 跑马灯：客户原话 ---------- */
.ticker {
  overflow: hidden;
  padding: 22px 0;
  background: var(--night);
  color: rgba(255, 255, 255, 0.8);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.ticker__track {
  display: flex;
  gap: 44px;
  width: max-content;
  animation: marquee 42s linear infinite;
}
.ticker__item {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  font-size: 15px;
  white-space: nowrap;
  color: rgba(255, 255, 255, 0.78);
}
.ticker__item::before {
  content: '';
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--gold-2);
}
.ticker:hover .ticker__track {
  animation-play-state: paused;
}
@keyframes marquee {
  from {
    transform: translate3d(0, 0, 0);
  }
  to {
    transform: translate3d(-50%, 0, 0);
  }
}

/* ---------- 场景筛选 chips ---------- */
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: -18px 0 34px;
}
.chip {
  padding: 9px 18px;
  border: 1px solid var(--line-2);
  border-radius: 999px;
  background: var(--card);
  font: inherit;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--ink);
  cursor: pointer;
  transition: all 0.24s var(--ease);
}
.chip:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}
.chip[aria-pressed='true'] {
  background: linear-gradient(135deg, var(--accent), var(--accent-ink));
  border-color: transparent;
  color: #fff;
  box-shadow: var(--shadow-glow);
}
.offers-grid.is-filtered [data-scene]:not(.is-show) {
  display: none;
}
.offers-grid [data-scene].is-show {
  animation: pop 0.42s var(--ease) both;
}
@keyframes pop {
  from {
    opacity: 0;
    transform: scale(0.96) translateY(10px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ---------- 困境 / 卖点 对照 ---------- */
.compare {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(20px, 3vw, 40px);
  align-items: start;
}
.compare__col {
  padding: 30px;
  border-radius: var(--radius-xl);
  border: 1px solid var(--line);
  background: var(--card);
  box-shadow: var(--shadow-1);
}
.compare__col--pain {
  background: linear-gradient(160deg, #fdf6f0 0%, var(--card) 60%);
}
.compare__col--gain {
  background: linear-gradient(160deg, var(--accent-soft) 0%, var(--card) 60%);
}
.compare__col h3 {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}
.compare__col--gain h3 {
  color: var(--accent);
}
.compare__item {
  padding: 18px 0;
  border-bottom: 1px dashed var(--line);
}
.compare__item:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}
.compare__item h4 {
  margin-bottom: 6px;
  font-size: 17.5px;
}
.compare__item p {
  margin: 0;
  font-size: 15px;
  color: var(--muted);
}

/* ---------- 数据条 + 数字滚动 ---------- */
.stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(14px, 2vw, 26px);
}
.stats div {
  padding: 28px 22px;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.14);
  backdrop-filter: blur(3px);
  transition: transform 0.3s var(--ease), background 0.3s var(--ease);
}
.stats div:hover {
  transform: translateY(-4px);
  background: rgba(255, 255, 255, 0.12);
}
.stats b {
  display: block;
  font-family: var(--font-num);
  font-size: clamp(30px, 4vw, 46px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--gold-2);
}
.stats span {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.68);
}
.stats--light div {
  background: var(--card);
  border-color: var(--line);
}
.stats--light b {
  color: var(--accent);
}
.stats--light span {
  color: var(--muted);
}

/* ---------- 能力/卖点清单 ---------- */
.feat {
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}
.feat:last-child {
  border-bottom: 0;
}
.feat h3 {
  margin-bottom: 6px;
  font-size: 17.5px;
}
.feat p {
  margin: 0;
  color: var(--muted);
  font-size: 15.5px;
}
.feat__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: 44px;
}
.feat__row {
  display: grid;
  grid-template-columns: 46px 1fr;
  gap: 18px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}
.feat__row:last-child {
  border-bottom: 0;
}
.feat__row .monogram {
  width: 46px;
  height: 46px;
  margin: 0;
  border-radius: 12px;
  font-size: 12.5px;
}

/* ---------- 步骤时间线 ---------- */
.timeline {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(14px, 2vw, 24px);
  position: relative;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 6%;
  right: 6%;
  top: 22px;
  height: 1px;
  background: linear-gradient(90deg, var(--accent), var(--gold), transparent);
  opacity: 0.45;
}
.timeline li {
  list-style: none;
  position: relative;
  margin: 0;
  padding: 56px 18px 0 0;
}
.timeline li::before {
  content: counter(step, decimal-leading-zero);
  counter-increment: step;
  position: absolute;
  left: 0;
  top: 0;
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--card);
  border: 1px solid var(--line-2);
  font-family: var(--font-num);
  font-size: 14px;
  font-weight: 700;
  color: var(--accent);
  transition: transform 0.3s var(--ease), background 0.3s var(--ease), color 0.3s var(--ease);
}
.timeline {
  counter-reset: step;
  list-style: none;
  padding: 0;
  margin: 0;
}
.timeline li:hover::before {
  background: linear-gradient(135deg, var(--accent), var(--accent-ink));
  border-color: transparent;
  color: #fff;
  transform: scale(1.08);
}
.timeline b {
  display: block;
  margin-bottom: 6px;
  font-size: 17.5px;
  color: var(--ink);
}
.timeline span {
  font-size: 15px;
  color: var(--muted);
}

/* 竖排步骤（业务站内页） */
.steps {
  counter-reset: st;
  list-style: none;
  padding: 0;
  margin: 0;
  border-top: 1px solid var(--line);
}
.steps li {
  counter-increment: st;
  position: relative;
  margin: 0;
  padding: 24px 26px 24px 88px;
  border-bottom: 1px solid var(--line);
  transition: background 0.3s var(--ease);
}
.steps li:hover {
  background: var(--card);
}
.steps li::before {
  content: counter(st, decimal-leading-zero);
  position: absolute;
  left: 24px;
  top: 24px;
  font-family: var(--font-num);
  font-size: 15px;
  font-weight: 700;
  color: var(--gold);
}
.steps b {
  display: block;
  margin-bottom: 5px;
  font-size: 17.5px;
}
.steps span {
  color: var(--muted);
  font-size: 15.5px;
}

/* ---------- 分栏 ---------- */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(30px, 5vw, 76px);
  align-items: center;
}
.split--rev .split__media {
  order: -1;
}
.split__media .media {
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-2);
}
.split__media .media img {
  transition: transform 0.8s var(--ease);
}
.split__media:hover .media img {
  transform: scale(1.05);
}
.checklist {
  list-style: none;
  padding: 0;
  margin: 22px 0 0;
}
.checklist li {
  position: relative;
  margin: 0 0 14px;
  padding-left: 30px;
  color: var(--ink);
  font-size: 15.5px;
}
.checklist li::before {
  content: '';
  position: absolute;
  left: 2px;
  top: 10px;
  width: 15px;
  height: 8px;
  border-left: 2px solid var(--gold);
  border-bottom: 2px solid var(--gold);
  transform: rotate(-45deg);
}

/* ---------- 图集（瀑布） ---------- */
.gallery {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 14px;
}
.gallery figure {
  position: relative;
  margin: 0;
  grid-column: span 2;
  overflow: hidden;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-1);
}
.gallery figure:nth-child(1),
.gallery figure:nth-child(6) {
  grid-column: span 3;
}
.gallery img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transition: transform 0.8s var(--ease), filter 0.5s var(--ease);
}
.gallery figure:hover img {
  transform: scale(1.08);
  filter: saturate(1.05);
}
.gallery figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 16px 18px 14px;
  font-size: 14px;
  color: #fff;
  background: linear-gradient(180deg, transparent, rgba(12, 23, 41, 0.82));
  transform: translateY(8px);
  opacity: 0;
  transition: all 0.4s var(--ease);
}
.gallery figure:hover figcaption,
.gallery figure:focus-within figcaption {
  transform: none;
  opacity: 1;
}

/* ---------- 标签 ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 13px;
  border: 1px solid var(--line-2);
  border-radius: 999px;
  font-size: 12.5px;
  font-weight: 500;
  color: var(--muted);
  background: var(--card);
}
.tag--accent {
  border-color: color-mix(in srgb, var(--accent) 26%, transparent);
  background: var(--accent-soft);
  color: var(--accent-ink);
}
.tag--gold {
  border-color: color-mix(in srgb, var(--gold) 40%, transparent);
  background: color-mix(in srgb, var(--gold) 12%, #fff);
  color: #7a5a1e;
}
.tagrow {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin: 0 0 20px;
}

/* ---------- 直接答案块 ---------- */
.answer {
  position: relative;
  padding: 28px 32px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-1);
  font-size: 17px;
  line-height: 1.85;
  color: var(--ink);
}
.answer::before {
  content: '';
  position: absolute;
  left: 0;
  top: 22px;
  bottom: 22px;
  width: 3px;
  border-radius: 0 3px 3px 0;
  background: linear-gradient(180deg, var(--gold), var(--accent));
}
.answer__label {
  display: block;
  margin-bottom: 8px;
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
}

/* ---------- FAQ ---------- */
.faq {
  border-top: 1px solid var(--line);
}
.faq details {
  border-bottom: 1px solid var(--line);
}
.faq summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 22px 4px;
  cursor: pointer;
  list-style: none;
  font-size: 16.5px;
  font-weight: 600;
  color: var(--ink);
  transition: color 0.24s var(--ease);
}
.faq summary::-webkit-details-marker {
  display: none;
}
.faq summary::after {
  content: '+';
  flex: none;
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid var(--line-2);
  font-family: var(--font-num);
  font-size: 17px;
  color: var(--accent);
  transition: transform 0.3s var(--ease), background 0.3s var(--ease), color 0.3s var(--ease);
}
.faq details[open] summary {
  color: var(--accent);
}
.faq details[open] summary::after {
  content: '−';
  background: var(--accent);
  border-color: transparent;
  color: #fff;
  transform: rotate(180deg);
}
.faq__a {
  margin: -2px 44px 24px 4px;
  color: var(--body);
  font-size: 15.5px;
  animation: fadeUp 0.4s var(--ease) both;
}
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ---------- 表格 ---------- */
.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
  box-shadow: var(--shadow-1);
}
table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  font-size: 15px;
}
th,
td {
  padding: 14px 18px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
}
tr:last-child td {
  border-bottom: 0;
}
th {
  background: var(--paper-2);
  color: var(--ink);
  font-size: 13.5px;
  font-weight: 700;
  white-space: nowrap;
}
tbody tr {
  transition: background 0.2s var(--ease);
}
tbody tr:hover {
  background: var(--accent-soft);
}
td {
  color: var(--body);
}

/* ---------- 业务矩阵行 ---------- */
.rowlist {
  border-top: 1px solid var(--line);
}
.rowlist__row {
  display: grid;
  grid-template-columns: 46px 1.15fr 1.6fr auto;
  gap: 22px;
  align-items: center;
  padding: 24px 8px;
  border-bottom: 1px solid var(--line);
  transition: background 0.26s var(--ease), padding-left 0.26s var(--ease);
}
.rowlist__row:hover {
  background: var(--card);
  padding-left: 18px;
}
.rowlist__title {
  font-size: 19px;
  font-weight: 600;
  color: var(--ink);
}
.rowlist__desc {
  display: block;
  margin-top: 2px;
  font-size: 14.5px;
  color: var(--muted);
}
.rowlist__go {
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
  white-space: nowrap;
}

/* ---------- 面包屑 ---------- */
.crumbs {
  margin-bottom: 22px;
  font-size: 13.5px;
  color: var(--muted);
}
.crumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.crumbs li {
  display: flex;
  gap: 8px;
  margin: 0;
}
.crumbs li + li::before {
  content: '/';
  color: var(--line-2);
}

/* ---------- 文章正文 ---------- */
.prose {
  max-width: 800px;
}
.prose h2 {
  margin: 46px 0 16px;
  font-size: clamp(22px, 2.6vw, 28px);
}
.prose h3 {
  margin: 30px 0 12px;
  font-size: 19px;
}
.prose p,
.prose li {
  color: #3f4c5f;
  font-size: 16.5px;
  line-height: 1.92;
}
.prose .table-wrap {
  margin: 26px 0 34px;
}
.prose blockquote {
  margin: 28px 0;
  padding: 20px 24px;
  background: var(--card);
  border: 1px solid var(--line);
  border-left: 3px solid var(--gold);
  border-radius: var(--radius);
  color: var(--ink);
  font-size: 16px;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  padding-bottom: 22px;
  margin-bottom: 34px;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
  color: var(--muted);
}
.toc {
  padding: 22px 24px;
  margin: 0 0 40px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-1);
}
.toc h2 {
  margin-bottom: 10px;
  font-size: 12.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}
.toc ol {
  margin: 0;
  padding-left: 1.1em;
}
.toc li {
  margin: 0 0 6px;
  font-size: 15px;
}
.pager {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 54px;
  padding-top: 26px;
  border-top: 1px solid var(--line);
}
.pager a {
  display: block;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--card);
  transition: all 0.26s var(--ease);
}
.pager a:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
  box-shadow: var(--shadow-2);
}
.pager small {
  display: block;
  margin-bottom: 4px;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ---------- CTA ---------- */
.cta {
  position: relative;
  overflow: hidden;
  padding: clamp(50px, 6.5vw, 92px) 0;
  background: linear-gradient(120deg, var(--night) 0%, color-mix(in srgb, var(--accent) 62%, var(--night)) 58%, var(--night-2) 100%);
  color: rgba(255, 255, 255, 0.8);
}
.cta::before {
  content: '';
  position: absolute;
  right: -6%;
  top: -40%;
  width: 40vw;
  height: 40vw;
  max-width: 520px;
  max-height: 520px;
  border-radius: 50%;
  background: radial-gradient(circle, color-mix(in srgb, var(--gold) 34%, transparent), transparent 62%);
  animation: floaty 18s ease-in-out infinite alternate;
}
.cta__in {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 40px;
  align-items: center;
}
.cta h2 {
  color: #fff;
  margin-bottom: 12px;
}
.cta p {
  margin: 0;
  max-width: 640px;
}
.cta__actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: flex-start;
}
.cta__line {
  font-size: 13.5px;
  color: rgba(255, 255, 255, 0.56);
}

/* ---------- 页脚 ---------- */
.site-footer {
  padding: clamp(56px, 6vw, 86px) 0 26px;
  background: var(--night-2);
  color: rgba(255, 255, 255, 0.62);
  font-size: 14.5px;
}
.site-footer a:hover {
  color: var(--gold-2);
}
.site-footer__top {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, minmax(120px, 1fr));
  gap: 36px;
  padding-bottom: 38px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.site-footer h4 {
  margin-bottom: 16px;
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.site-footer ul {
  margin: 0;
  padding: 0;
  list-style: none;
}
.site-footer li {
  margin: 0 0 10px;
}
.site-footer .logo {
  color: #fff;
  margin-bottom: 14px;
}
.site-footer .logo__mark {
  color: var(--gold-2);
}
.site-footer__about p {
  max-width: 360px;
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.55);
}
.site-footer__contactrow {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 34px;
  align-items: baseline;
  padding: 24px 0 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.site-footer__contactrow h4 {
  margin: 0;
}
.site-footer__contact {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 34px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.site-footer__contact li {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
}
.site-footer__contact i {
  flex: none;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--gold);
}
.site-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  justify-content: space-between;
  padding-top: 22px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.42);
}
.site-footer__bottom a {
  color: rgba(255, 255, 255, 0.55);
}

/* ---------- 说明块 ---------- */
.note {
  display: flex;
  gap: 14px;
  padding: 18px 22px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ink);
  box-shadow: var(--shadow-1);
}
.note__mark {
  flex: none;
  width: 3px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--gold), var(--accent));
}

/* ---------- 联系页 ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(30px, 4vw, 56px);
  align-items: start;
}
.info {
  border-top: 1px solid var(--line);
}
.info__row {
  display: grid;
  grid-template-columns: 108px 1fr;
  gap: 18px;
  padding: 18px 4px;
  border-bottom: 1px solid var(--line);
}
.info__row dt {
  font-size: 13.5px;
  color: var(--muted);
}
.info__row dd {
  margin: 0;
  font-size: 16px;
  color: var(--ink);
  font-weight: 500;
  word-break: break-word;
}
.form {
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background: var(--card);
  box-shadow: var(--shadow-2);
}
.field {
  margin-bottom: 16px;
}
.field label {
  display: block;
  margin-bottom: 7px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ink);
}
.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 12px 14px;
  font: inherit;
  font-size: 15px;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  transition: border-color 0.22s var(--ease), box-shadow 0.22s var(--ease), background 0.22s var(--ease);
}
.field textarea {
  min-height: 120px;
  resize: vertical;
}
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: 0;
  background: #fff;
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
}

/* ---------- 跳转辅助 ---------- */
.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  padding: 10px 16px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.skip:focus {
  left: 12px;
  top: 12px;
}

/* ---------- 动效开关：无 JS 或不支持 IO 时全部可见 ---------- */
.anim [data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}
.anim [data-reveal].is-in {
  opacity: 1;
  transform: none;
}
.anim [data-reveal='left'] {
  transform: translateX(-28px);
}
.anim [data-reveal='scale'] {
  transform: scale(0.96);
}
.anim [data-reveal='left'].is-in,
.anim [data-reveal='scale'].is-in {
  transform: none;
}

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .hero__grid,
  .cover__grid,
  .split,
  .compare,
  .contact-grid,
  .cta__in {
    grid-template-columns: 1fr;
  }
  .split--rev .split__media {
    order: 0;
  }
  .g4,
  .stats,
  .timeline {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .timeline::before {
    display: none;
  }
  .g3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .gallery {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .gallery figure,
  .gallery figure:nth-child(1),
  .gallery figure:nth-child(6) {
    grid-column: span 2;
  }
  .site-footer__top {
    grid-template-columns: 1fr 1fr;
  }
  .rowlist__row {
    grid-template-columns: 40px 1fr auto;
  }
  .rowlist__row .mono {
    display: none;
  }
  .float-chip {
    display: none;
  }
}

@media (max-width: 760px) {
  body {
    font-size: 16px;
  }
  .nav {
    position: fixed;
    left: 0;
    right: 0;
    top: 74px;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    max-height: calc(100vh - 74px);
    overflow-y: auto;
    margin: 0;
    padding: 14px var(--gutter) 26px;
    background: color-mix(in srgb, var(--paper) 97%, transparent);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-2);
    display: none;
  }
  .nav--open {
    display: flex;
    animation: fadeUp 0.3s var(--ease) both;
  }
  .nav a {
    padding: 14px 6px;
    border-bottom: 1px solid var(--line);
    border-radius: 0;
    font-size: 16.5px;
  }
  .nav__cta {
    margin: 18px 0 0;
  }
  .burger {
    display: block;
  }
  .site-header__in {
    height: 68px;
  }
  .nav {
    top: 68px;
  }
  .logo__sub {
    display: none;
  }
  .g2,
  .g3,
  .g4,
  .stats,
  .timeline,
  .feat__grid,
  .pager {
    grid-template-columns: 1fr;
  }
  .gallery {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .answer {
  padding: 22px 20px 22px 24px;
    font-size: 16px;
  }
  .card,
  .card--media .card__body {
    padding: 22px;
  }
  .form {
    padding: 22px 18px;
  }
  .site-footer__top {
    grid-template-columns: 1fr;
    gap: 26px;
  }
  .hero {
    min-height: 620px;
  }
  .hero__cue {
    display: none;
  }
  .rowlist__row {
    grid-template-columns: 34px 1fr;
    gap: 12px;
  }
  .rowlist__go {
    grid-column: 2;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition: none !important;
    animation: none !important;
    scroll-behavior: auto !important;
  }
  .anim [data-reveal] {
    opacity: 1;
    transform: none;
  }
}

@media print {
  .site-header,
  .site-footer,
  .cta,
  .scrollbar-progress {
    display: none;
  }
}