/* ============================================================
   煋旺智能官网 · 设计系统 v2（去PPT化·真实官网质感）
   主色：深海蓝 #0A1628 / 强调：橙 #FF6B35
   手机优先 · 高密度 · 精致细节
   ============================================================ */

:root {
  --navy: #0A1628;
  --navy-2: #0F1F3A;
  --navy-3: #16294A;
  --navy-deep: #060D18;
  --orange: #FF6B35;
  --orange-dark: #E55A2B;
  --orange-light: #FF8C5A;
  --orange-soft: #FFF0EB;
  --bg: #FFFFFF;
  --bg-gray: #F6F8FB;
  --line: #E6EAF0;
  --line-2: #EEF1F6;
  --line-dark: rgba(255, 255, 255, 0.09);
  --text: #141C2B;
  --text-2: #4A5568;
  --text-3: #8892A6;
  --text-inv: #FFFFFF;
  --text-inv-2: rgba(255, 255, 255, 0.68);
  --text-inv-3: rgba(255, 255, 255, 0.42);

  --font: "Inter", -apple-system, BlinkMacSystemFont, "PingFang SC",
    "Hiragino Sans GB", "Source Han Sans SC", "Noto Sans SC",
    "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;

  --nav-h: 58px;
  --radius-s: 6px;
  --radius-m: 10px;
  --radius-l: 14px;
  --shadow-card: 0 1px 2px rgba(16, 24, 40, 0.04), 0 1px 3px rgba(16, 24, 40, 0.03);
  --shadow-pop: 0 8px 24px rgba(16, 24, 40, 0.10), 0 2px 6px rgba(16, 24, 40, 0.05);
  --shadow-orange: 0 4px 14px rgba(255, 107, 53, 0.30);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea, select { font-family: inherit; }
::selection { background: var(--orange); color: #fff; }

/* ---------- 布局 ---------- */
.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 20px;
}
@media (min-width: 768px) {
  .container { padding: 0 32px; }
}

.section { padding: 44px 0; }
@media (min-width: 768px) {
  .section { padding: 72px 0; }
}
.section--gray { background: var(--bg-gray); }
.section--navy { background: var(--navy); color: var(--text-inv); }
.section + .section:not(.section--gray):not(.section--navy) { border-top: 1px solid var(--line-2); }

/* ---------- 标题系统（左对齐·紧凑） ---------- */
.section-head { margin-bottom: 28px; max-width: 640px; }
@media (min-width: 768px) { .section-head { margin-bottom: 40px; } }
.section-head--center { margin-left: auto; margin-right: auto; text-align: center; }

.section-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 10px;
}
.section-title {
  font-size: 22px;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--text);
}
@media (min-width: 768px) { .section-title { font-size: 28px; } }
.section--navy .section-title { color: var(--text-inv); }
.section-sub {
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-2);
}
.section--navy .section-sub { color: var(--text-inv-2); }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.2;
  border-radius: var(--radius-s);
  transition: transform 0.15s ease, box-shadow 0.2s ease, background 0.2s ease, border-color 0.2s ease;
  white-space: nowrap;
}
.btn:active { transform: scale(0.97); }
.btn--primary {
  background: var(--orange);
  color: #fff;
  box-shadow: var(--shadow-orange);
}
.btn--primary:hover { background: var(--orange-dark); }
.btn--ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--line);
}
.btn--ghost:hover { border-color: var(--text-3); }
.btn--ghost-inv {
  background: transparent;
  color: var(--text-inv);
  border: 1px solid rgba(255, 255, 255, 0.28);
}
.btn--ghost-inv:hover { border-color: rgba(255, 255, 255, 0.55); }
.btn--lg { padding: 12px 22px; font-size: 15px; }
.btn .arr { font-family: none; }

/* ---------- 导航 ---------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--nav-h);
  transition: background 0.25s ease, box-shadow 0.25s ease;
}
.nav.is-scrolled {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(1.6) blur(12px);
  -webkit-backdrop-filter: saturate(1.6) blur(12px);
  box-shadow: 0 1px 0 var(--line);
}
.nav__inner {
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav__logo {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--text-inv);
}
.nav.is-scrolled .nav__logo { color: var(--text); }
.nav__logo img { width: 30px; height: 30px; }
.nav__logo .en {
  font-size: 11px;
  font-weight: 500;
  color: var(--text-inv-3);
  letter-spacing: 0.06em;
  display: none;
}
.nav.is-scrolled .nav__logo .en { color: var(--text-3); }
@media (min-width: 768px) { .nav__logo .en { display: inline; } }

.nav__links { display: none; align-items: center; gap: 4px; }
.nav__links a {
  padding: 7px 12px;
  font-size: 13.5px;
  font-weight: 500;
  color: var(--text-inv-2);
  border-radius: var(--radius-s);
  transition: color 0.2s, background 0.2s;
}
.nav__links a:hover { color: #fff; }
.nav.is-scrolled .nav__links a { color: var(--text-2); }
.nav.is-scrolled .nav__links a:hover { color: var(--text); background: var(--bg-gray); }
.nav__links a.is-active { color: var(--orange); }
.nav__links .btn { margin-left: 8px; padding: 7px 14px; font-size: 13px; }
@media (min-width: 900px) { .nav__links { display: flex; } }

.nav__burger {
  width: 38px; height: 38px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  border-radius: var(--radius-s);
}
.nav__burger span {
  display: block;
  width: 18px; height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: transform 0.25s, opacity 0.2s, background 0.25s;
}
.nav.is-scrolled .nav__burger span { background: var(--text); }
@media (min-width: 900px) { .nav__burger { display: none; } }

/* 移动端抽屉 */
.drawer {
  position: fixed;
  inset: 0;
  z-index: 200;
  visibility: hidden;
  pointer-events: none;
}
.drawer.is-open { visibility: visible; pointer-events: auto; }
.drawer__mask {
  position: absolute;
  inset: 0;
  background: rgba(6, 13, 24, 0.5);
  opacity: 0;
  transition: opacity 0.25s;
}
.drawer.is-open .drawer__mask { opacity: 1; }
.drawer__panel {
  position: absolute;
  top: 0; right: 0; bottom: 0;
  width: min(78vw, 320px);
  background: var(--navy);
  padding: 20px;
  transform: translateX(100%);
  transition: transform 0.28s cubic-bezier(0.32, 0.72, 0, 1);
  display: flex;
  flex-direction: column;
}
.drawer.is-open .drawer__panel { transform: translateX(0); }
.drawer__close {
  align-self: flex-end;
  width: 36px; height: 36px;
  color: var(--text-inv-2);
  font-size: 22px;
  line-height: 1;
}
.drawer__links { margin-top: 16px; display: flex; flex-direction: column; }
.drawer__links a {
  padding: 13px 4px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-inv);
  border-bottom: 1px solid var(--line-dark);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.drawer__links a .go { color: var(--text-inv-3); font-size: 13px; }
.drawer__cta { margin-top: auto; }
.drawer__cta .btn { width: 100%; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: calc(var(--nav-h) + 44px) 0 52px;
  background:
    radial-gradient(60% 50% at 78% 12%, rgba(255, 107, 53, 0.13), transparent 62%),
    radial-gradient(70% 60% at 12% 88%, rgba(43, 94, 178, 0.28), transparent 60%),
    linear-gradient(160deg, var(--navy) 0%, var(--navy-2) 58%, var(--navy-deep) 100%);
  color: var(--text-inv);
  overflow: hidden;
}
@media (min-width: 768px) { .hero { padding: calc(var(--nav-h) + 76px) 0 88px; } }
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(75% 70% at 50% 30%, #000 30%, transparent 100%);
  -webkit-mask-image: radial-gradient(75% 70% at 50% 30%, #000 30%, transparent 100%);
  pointer-events: none;
}
.hero .container { position: relative; }

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 12px 5px 6px;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-inv-2);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  margin-bottom: 20px;
}
.hero__badge .dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--orange);
  box-shadow: 0 0 8px var(--orange);
}
.hero__badge .tag-new {
  padding: 2px 7px;
  font-size: 11px;
  font-weight: 600;
  color: #fff;
  background: var(--orange);
  border-radius: 999px;
}

.hero__title {
  font-size: 30px;
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: -0.015em;
}
@media (min-width: 768px) { .hero__title { font-size: 46px; } }
.hero__title .hl {
  background: linear-gradient(120deg, var(--orange-light), var(--orange));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero__sub {
  margin-top: 16px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--text-inv-2);
  max-width: 520px;
}
@media (min-width: 768px) { .hero__sub { font-size: 16px; } }

.hero__actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }

.hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
  margin-top: 30px;
  padding-top: 20px;
  border-top: 1px solid var(--line-dark);
  font-size: 12.5px;
  color: var(--text-inv-3);
}
.hero__meta span { display: inline-flex; align-items: center; gap: 6px; }
.hero__meta svg { width: 13px; height: 13px; stroke: var(--orange); }

/* Hero 右侧视觉：Logo 轨道 */
.hero__grid { display: grid; gap: 36px; align-items: center; }
@media (min-width: 900px) { .hero__grid { grid-template-columns: 1.05fr 0.95fr; gap: 48px; } }
.hero__visual { display: flex; justify-content: center; }
.orbit {
  position: relative;
  width: min(64vw, 300px);
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}
.orbit__core {
  width: 56%;
  filter: drop-shadow(0 12px 32px rgba(255, 107, 53, 0.22));
  animation: float 5.5s ease-in-out infinite;
}
.orbit__ring {
  position: absolute;
  inset: 0;
  border: 1px dashed rgba(255, 255, 255, 0.16);
  border-radius: 50%;
  animation: spin 36s linear infinite;
}
.orbit__ring::before {
  content: "";
  position: absolute;
  top: -4px; left: 50%;
  width: 7px; height: 7px;
  margin-left: -3.5px;
  background: var(--orange);
  border-radius: 50%;
  box-shadow: 0 0 12px var(--orange);
}
.orbit__ring--2 { inset: 13%; animation-duration: 26s; animation-direction: reverse; }
.orbit__ring--2::before { background: #4A9EFF; box-shadow: 0 0 12px #4A9EFF; }
.orbit__chip {
  position: absolute;
  padding: 6px 11px;
  font-size: 11.5px;
  font-weight: 600;
  color: var(--text-inv);
  background: rgba(15, 31, 58, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  backdrop-filter: blur(6px);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.25);
  animation: float 6s ease-in-out infinite;
}
.orbit__chip--1 { top: 4%; right: -4%; animation-delay: -1.5s; }
.orbit__chip--2 { bottom: 10%; left: -8%; animation-delay: -3.2s; }
.orbit__chip .em { color: var(--orange-light); }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-9px); } }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- 信任条（客户/伙伴横条） ---------- */
.trustbar {
  padding: 22px 0;
  background: var(--bg);
  border-bottom: 1px solid var(--line-2);
}
.trustbar__label {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--text-3);
  text-align: center;
  margin-bottom: 14px;
}
.trustbar__row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px 28px;
}
.trustbar__row span {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-3);
  letter-spacing: 0.02em;
}

/* ---------- 数据条（紧凑横排） ---------- */
.statband {
  background: var(--navy);
  color: var(--text-inv);
}
.statband__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
}
@media (min-width: 768px) { .statband__grid { grid-template-columns: repeat(4, 1fr); } }
.statband__item {
  padding: 24px 20px;
  border-left: 1px solid var(--line-dark);
}
.statband__item:first-child { border-left: none; }
@media (max-width: 767px) {
  .statband__item:nth-child(odd) { border-left: none; }
  .statband__item:nth-child(n+3) { border-top: 1px solid var(--line-dark); }
}
.statband__num {
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -0.01em;
  font-variant-numeric: tabular-nums;
}
.statband__num .suffix { color: var(--orange); font-size: 0.72em; margin-left: 1px; }
@media (min-width: 768px) { .statband__num { font-size: 32px; } }
.statband__label { margin-top: 4px; font-size: 12.5px; color: var(--text-inv-3); }

/* ---------- 卡片网格 ---------- */
.grid { display: grid; gap: 14px; }
@media (min-width: 640px) { .grid--2 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 900px) {
  .grid { gap: 18px; }
  .grid--3 { grid-template-columns: repeat(3, 1fr); }
  .grid--4 { grid-template-columns: repeat(4, 1fr); }
}

.card {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  padding: 20px;
  box-shadow: var(--shadow-card);
  transition: transform 0.2s ease, box-shadow 0.25s ease, border-color 0.2s ease;
}
.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-pop);
  border-color: #D8DEE8;
}
.card__icon {
  width: 38px; height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 9px;
  background: var(--orange-soft);
  margin-bottom: 14px;
}
.card__icon svg { width: 19px; height: 19px; stroke: var(--orange); }
.card__icon--navy { background: rgba(10, 22, 40, 0.06); }
.card__icon--navy svg { stroke: var(--navy-3); }
.card__title { font-size: 15.5px; font-weight: 700; letter-spacing: -0.005em; }
.card__desc { margin-top: 7px; font-size: 13.5px; line-height: 1.7; color: var(--text-2); }
.card__link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 12px;
  font-size: 13px;
  font-weight: 600;
  color: var(--orange);
}
.card__link:hover { color: var(--orange-dark); }

/* ---------- 双业务区块 ---------- */
.biz { display: grid; gap: 16px; }
@media (min-width: 900px) { .biz { grid-template-columns: 1fr 1fr; gap: 22px; } }
.biz__card {
  position: relative;
  border-radius: var(--radius-l);
  padding: 26px 24px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--bg);
  box-shadow: var(--shadow-card);
  transition: transform 0.2s ease, box-shadow 0.25s ease;
}
.biz__card:hover { transform: translateY(-3px); box-shadow: var(--shadow-pop); }
.biz__card--navy {
  background: linear-gradient(155deg, var(--navy-2), var(--navy-deep));
  border-color: var(--navy-3);
  color: var(--text-inv);
}
.biz__tag {
  display: inline-block;
  padding: 3px 10px;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.05em;
  border-radius: 999px;
  background: var(--orange-soft);
  color: var(--orange-dark);
  margin-bottom: 14px;
}
.biz__card--navy .biz__tag { background: rgba(255, 107, 53, 0.16); color: var(--orange-light); }
.biz__name { font-size: 20px; font-weight: 800; letter-spacing: -0.01em; }
.biz__slogan { margin-top: 6px; font-size: 13.5px; color: var(--text-2); }
.biz__card--navy .biz__slogan { color: var(--text-inv-2); }
.biz__list { margin-top: 18px; display: grid; gap: 10px; }
.biz__list li {
  display: flex;
  gap: 9px;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--text-2);
}
.biz__card--navy .biz__list li { color: var(--text-inv-2); }
.biz__list svg {
  flex: none;
  width: 16px; height: 16px;
  margin-top: 2px;
  stroke: var(--orange);
}
.biz__foot { margin-top: 20px; display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.biz__price { font-size: 13px; color: var(--text-3); }
.biz__price strong { font-size: 17px; color: var(--orange); font-weight: 800; }

/* ---------- 优势（编号列表式） ---------- */
.feature { display: grid; gap: 14px; }
@media (min-width: 768px) { .feature { grid-template-columns: repeat(2, 1fr); gap: 0; } }
.feature__item {
  padding: 22px 20px;
  border-top: 1px solid var(--line);
}
@media (min-width: 768px) {
  .feature__item { padding: 28px 26px; }
  .feature__item:nth-child(odd) { border-right: 1px solid var(--line); }
  .feature__item:nth-child(-n+2) { border-top: none; }
  .feature__item:nth-child(n+3) { border-top: 1px solid var(--line); }
}
@media (max-width: 767px) { .feature__item:first-child { border-top: none; } }
.feature__num {
  font-size: 13px;
  font-weight: 700;
  color: var(--orange);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.04em;
}
.feature__title { margin-top: 8px; font-size: 16px; font-weight: 700; }
.feature__desc { margin-top: 7px; font-size: 13.5px; line-height: 1.7; color: var(--text-2); }

/* ---------- 时间线 ---------- */
.timeline { position: relative; padding-left: 24px; }
.timeline::before {
  content: "";
  position: absolute;
  left: 5px; top: 6px; bottom: 6px;
  width: 1px;
  background: var(--line);
}
.timeline__item { position: relative; padding-bottom: 26px; }
.timeline__item:last-child { padding-bottom: 0; }
.timeline__item::before {
  content: "";
  position: absolute;
  left: -22.5px; top: 6px;
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--orange);
}
.timeline__year { font-size: 13px; font-weight: 700; color: var(--orange); letter-spacing: 0.03em; }
.timeline__title { margin-top: 3px; font-size: 15.5px; font-weight: 700; }
.timeline__desc { margin-top: 5px; font-size: 13.5px; line-height: 1.7; color: var(--text-2); }

/* ---------- 团队卡 ---------- */
.team-card {
  max-width: 460px;
  margin: 0 auto;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  padding: 30px 26px;
  text-align: center;
  box-shadow: var(--shadow-card);
}
.team-card__avatar {
  width: 96px; height: 96px;
  margin: 0 auto 16px;
  border-radius: 50%;
  overflow: hidden;
  border: 3px solid var(--orange-soft);
  box-shadow: 0 4px 14px rgba(255, 107, 53, 0.18);
}
.team-card__avatar img { width: 100%; height: 100%; object-fit: cover; }
.team-card h3 { font-size: 18px; font-weight: 700; }
.team-card .role { margin-top: 3px; font-size: 13px; font-weight: 600; color: var(--orange); }
.team-card p { margin-top: 12px; font-size: 13.5px; line-height: 1.75; color: var(--text-2); }
.team-card__tags { margin-top: 14px; display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; }
.team-card__tags span {
  padding: 4px 11px;
  font-size: 12px;
  color: var(--text-2);
  background: var(--bg-gray);
  border: 1px solid var(--line);
  border-radius: 999px;
}

/* ---------- 产品页：深蓝产品区块 ---------- */
.product-hero {
  border-radius: var(--radius-l);
  overflow: hidden;
  background: linear-gradient(150deg, var(--navy) 0%, var(--navy-2) 55%, var(--navy-deep) 100%);
  color: var(--text-inv);
  padding: 30px 24px;
  position: relative;
}
@media (min-width: 768px) { .product-hero { padding: 44px 40px; } }
.product-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: radial-gradient(80% 80% at 70% 20%, #000 20%, transparent 100%);
  -webkit-mask-image: radial-gradient(80% 80% at 70% 20%, #000 20%, transparent 100%);
}
.product-hero > * { position: relative; }
.product-hero__head { max-width: 640px; }
.product-hero__name { font-size: 24px; font-weight: 800; letter-spacing: -0.01em; }
@media (min-width: 768px) { .product-hero__name { font-size: 30px; } }
.product-hero__slogan { margin-top: 8px; font-size: 14px; color: var(--text-inv-2); }
.product-hero__grid { margin-top: 26px; display: grid; gap: 12px; }
@media (min-width: 640px) { .product-hero__grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 900px) { .product-hero__grid { grid-template-columns: repeat(3, 1fr); gap: 14px; } }
.p-feature {
  padding: 16px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-m);
  transition: background 0.2s, border-color 0.2s;
}
.p-feature:hover { background: rgba(255, 255, 255, 0.08); border-color: rgba(255, 255, 255, 0.18); }
.p-feature__icon {
  width: 32px; height: 32px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(255, 107, 53, 0.15);
  border-radius: 8px;
  margin-bottom: 10px;
}
.p-feature__icon svg { width: 16px; height: 16px; stroke: var(--orange-light); }
.p-feature__title { font-size: 14px; font-weight: 700; }
.p-feature__desc { margin-top: 4px; font-size: 12.5px; line-height: 1.65; color: var(--text-inv-2); }
.product-hero__scenes { margin-top: 22px; display: flex; flex-wrap: wrap; gap: 8px; }
.product-hero__scenes span {
  padding: 5px 12px;
  font-size: 12px;
  color: var(--text-inv-2);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 999px;
}

/* ---------- GEO 步骤 ---------- */
.steps { display: grid; gap: 12px; counter-reset: step; }
@media (min-width: 768px) { .steps { grid-template-columns: repeat(4, 1fr); } }
.step {
  position: relative;
  padding: 18px 16px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  box-shadow: var(--shadow-card);
}
.step__no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px; height: 26px;
  font-size: 13px;
  font-weight: 800;
  color: #fff;
  background: var(--navy);
  border-radius: 8px;
  margin-bottom: 10px;
  font-variant-numeric: tabular-nums;
}
.step__title { font-size: 14.5px; font-weight: 700; }
.step__desc { margin-top: 5px; font-size: 12.5px; line-height: 1.65; color: var(--text-2); }

/* ---------- 价格卡 ---------- */
.pricing { display: grid; gap: 16px; max-width: 760px; margin: 0 auto; }
@media (min-width: 768px) { .pricing { grid-template-columns: 1fr 1fr; gap: 18px; } }
.price-card {
  position: relative;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  padding: 26px 24px;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
}
.price-card--hot {
  border-color: var(--orange);
  box-shadow: 0 8px 28px rgba(255, 107, 53, 0.14);
}
.price-card__flag {
  position: absolute;
  top: -11px; left: 24px;
  padding: 3px 10px;
  font-size: 11.5px;
  font-weight: 700;
  color: #fff;
  background: var(--orange);
  border-radius: 999px;
}
.price-card__name { font-size: 16px; font-weight: 700; }
.price-card__for { margin-top: 3px; font-size: 12.5px; color: var(--text-3); }
.price-card__price { margin-top: 16px; display: flex; align-items: baseline; gap: 4px; }
.price-card__price .cur { font-size: 15px; font-weight: 700; color: var(--orange); }
.price-card__price .num { font-size: 34px; font-weight: 800; letter-spacing: -0.02em; color: var(--text); font-variant-numeric: tabular-nums; }
.price-card__price .per { font-size: 13px; color: var(--text-3); }
.price-card__list { margin-top: 18px; display: grid; gap: 9px; flex: 1; }
.price-card__list li { display: flex; gap: 8px; font-size: 13px; line-height: 1.6; color: var(--text-2); }
.price-card__list svg { flex: none; width: 15px; height: 15px; margin-top: 2px; stroke: var(--orange); }
.price-card .btn { margin-top: 20px; width: 100%; }

/* ---------- 方案卡 ---------- */
.case-card {
  display: flex;
  flex-direction: column;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  padding: 22px 20px;
  box-shadow: var(--shadow-card);
  transition: transform 0.2s ease, box-shadow 0.25s ease;
}
.case-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-pop); }
.case-card__tag { font-size: 12px; font-weight: 600; color: var(--orange); letter-spacing: 0.04em; }
.case-card__title { margin-top: 6px; font-size: 16px; font-weight: 700; }
.case-card__desc { margin-top: 8px; font-size: 13px; line-height: 1.7; color: var(--text-2); flex: 1; }
.case-card__result {
  margin-top: 14px;
  padding: 10px 12px;
  font-size: 12.5px;
  color: var(--orange-dark);
  background: var(--orange-soft);
  border-radius: var(--radius-s);
  display: flex;
  gap: 7px;
  align-items: flex-start;
  line-height: 1.55;
}
.case-card__result svg { flex: none; width: 14px; height: 14px; margin-top: 1px; stroke: var(--orange); }

/* ---------- 联系页 ---------- */
.contact-grid { display: grid; gap: 20px; }
@media (min-width: 900px) { .contact-grid { grid-template-columns: 0.9fr 1.1fr; gap: 28px; } }
.contact-list { display: grid; gap: 2px; }
.contact-list__item { display: flex; gap: 13px; padding: 14px 0; border-bottom: 1px solid var(--line-2); }
.contact-list__item:last-child { border-bottom: none; }
.contact-list__icon {
  flex: none;
  width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  background: var(--orange-soft);
  border-radius: 9px;
}
.contact-list__icon svg { width: 17px; height: 17px; stroke: var(--orange); }
.contact-list__item .label { font-size: 12px; color: var(--text-3); }
.contact-list__item .value { margin-top: 2px; font-size: 14.5px; font-weight: 600; color: var(--text); }

.wechat-box {
  margin-top: 20px;
  padding: 20px;
  background: var(--bg-gray);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  display: flex;
  align-items: center;
  gap: 16px;
}
.wechat-box__qr {
  flex: none;
  width: 108px; height: 108px;
  border-radius: var(--radius-s);
  overflow: hidden;
  border: 1px solid var(--line);
  background: #fff;
  padding: 5px;
}
.wechat-box__qr img { width: 100%; height: 100%; object-fit: contain; }
.wechat-box p { font-size: 13px; line-height: 1.7; color: var(--text-2); }

.contact-form-card {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  padding: 26px 22px;
  box-shadow: var(--shadow-card);
}
.contact-form-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 18px; }
.form-group { margin-bottom: 15px; }
.form-group label { display: block; margin-bottom: 6px; font-size: 13px; font-weight: 600; color: var(--text); }
.form-group .req { color: var(--orange); }
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 10px 12px;
  font-size: 14px;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius-s);
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--orange);
  box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.12);
}
.form-group textarea { min-height: 96px; resize: vertical; }
.form-note { margin-top: 12px; font-size: 12px; color: var(--text-3); text-align: center; }

/* ---------- CTA ---------- */
.cta {
  border-radius: var(--radius-l);
  background:
    radial-gradient(80% 120% at 85% 0%, rgba(255, 107, 53, 0.16), transparent 55%),
    linear-gradient(150deg, var(--navy-2), var(--navy-deep));
  color: var(--text-inv);
  padding: 34px 26px;
  text-align: center;
  overflow: hidden;
  position: relative;
}
@media (min-width: 768px) { .cta { padding: 48px 40px; } }
.cta__title { font-size: 21px; font-weight: 800; letter-spacing: -0.01em; }
@media (min-width: 768px) { .cta__title { font-size: 26px; } }
.cta__sub { margin-top: 10px; font-size: 13.5px; color: var(--text-inv-2); max-width: 480px; margin-left: auto; margin-right: auto; }
.cta__actions { margin-top: 22px; display: flex; justify-content: center; flex-wrap: wrap; gap: 10px; }

/* ---------- 页脚 ---------- */
.footer {
  background: var(--navy-deep);
  color: var(--text-inv-2);
  padding: 40px 0 0;
}
.footer__grid { display: grid; gap: 26px; padding-bottom: 30px; }
@media (min-width: 768px) { .footer__grid { grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; } }
.footer__brand { display: flex; align-items: center; gap: 10px; }
.footer__brand img { width: 34px; height: 34px; }
.footer__brand .name { font-size: 16px; font-weight: 700; color: #fff; }
.footer__brand .en { display: block; font-size: 10.5px; font-weight: 400; color: var(--text-inv-3); letter-spacing: 0.05em; }
.footer__desc { margin-top: 12px; font-size: 12.5px; line-height: 1.75; color: var(--text-inv-3); max-width: 300px; }
.footer__col h4 { font-size: 13px; font-weight: 700; color: #fff; margin-bottom: 13px; }
.footer__col ul { display: grid; gap: 9px; }
.footer__col a { font-size: 13px; color: var(--text-inv-3); transition: color 0.2s; }
.footer__col a:hover { color: var(--orange-light); }
.footer__bottom {
  padding: 16px 0;
  border-top: 1px solid var(--line-dark);
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-inv-3);
}

/* ---------- 内页 Banner ---------- */
.page-banner {
  padding: calc(var(--nav-h) + 40px) 0 40px;
  background:
    radial-gradient(60% 80% at 85% 10%, rgba(255, 107, 53, 0.12), transparent 60%),
    linear-gradient(155deg, var(--navy), var(--navy-deep));
  color: var(--text-inv);
}
@media (min-width: 768px) { .page-banner { padding: calc(var(--nav-h) + 60px) 0 56px; } }
.page-banner__tag {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 10px;
}
.page-banner__title { font-size: 26px; font-weight: 800; letter-spacing: -0.01em; }
@media (min-width: 768px) { .page-banner__title { font-size: 34px; } }
.page-banner__sub { margin-top: 12px; font-size: 14px; line-height: 1.75; color: var(--text-inv-2); max-width: 560px; }

/* ---------- 关于页：简介双栏 ---------- */
.about-intro { display: grid; gap: 26px; align-items: center; }
@media (min-width: 900px) { .about-intro { grid-template-columns: 1.15fr 0.85fr; gap: 48px; } }
.about-intro__text p { margin-top: 12px; font-size: 14px; line-height: 1.8; color: var(--text-2); }
.about-intro__text p:first-of-type { margin-top: 16px; }
.about-intro__visual {
  display: flex;
  justify-content: center;
  padding: 30px;
  background: linear-gradient(150deg, var(--navy-2), var(--navy-deep));
  border-radius: var(--radius-l);
}
.about-intro__visual img { width: min(58%, 240px); filter: drop-shadow(0 10px 30px rgba(255, 107, 53, 0.2)); }

/* ---------- 使命愿景双卡 ---------- */
.mv-grid { display: grid; gap: 14px; }
@media (min-width: 768px) { .mv-grid { grid-template-columns: 1fr 1fr; gap: 18px; } }
.mv-card {
  padding: 24px 22px;
  border-radius: var(--radius-l);
  border: 1px solid var(--line);
  background: var(--bg);
  box-shadow: var(--shadow-card);
}
.mv-card--navy {
  background: linear-gradient(150deg, var(--navy-2), var(--navy-deep));
  border-color: var(--navy-3);
  color: var(--text-inv);
}
.mv-card__label { font-size: 12px; font-weight: 600; letter-spacing: 0.1em; color: var(--orange); text-transform: uppercase; }
.mv-card__title { margin-top: 8px; font-size: 19px; font-weight: 800; letter-spacing: -0.01em; }
.mv-card__desc { margin-top: 10px; font-size: 13.5px; line-height: 1.75; color: var(--text-2); }
.mv-card--navy .mv-card__desc { color: var(--text-inv-2); }

/* ---------- 动效 ---------- */
.reveal { opacity: 1; transform: none; transition: opacity 0.55s ease, transform 0.55s cubic-bezier(0.22, 0.61, 0.36, 1); }
.reveal.is-visible { opacity: 1; transform: none; }
.reveal.is-hidden { opacity: 0; transform: translateY(18px); }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
  .reveal { opacity: 1; transform: none; }
}

/* ---------- 表单提交反馈 ---------- */
.form-message { margin-top: 12px; font-size: 13px; line-height: 1.6; min-height: 0; }
.form-message.success { color: #1a9e54; }
.form-message.error { color: #d43a3a; }

/* ---------- 工具类 ---------- */
.text-center { text-align: center; }
.mt-8 { margin-top: 8px; } .mt-16 { margin-top: 16px; } .mt-24 { margin-top: 24px; } .mt-32 { margin-top: 32px; }

/* ============================================================
   v4.1 增量：产品矩阵（导航下拉 / 抽屉分组 / 首页三卡矩阵）
   ============================================================ */

/* ---------- 导航产品下拉（桌面端） ---------- */
.nav__item { position: relative; display: flex; align-items: center; }
.nav__item > a .caret {
  width: 12px; height: 12px;
  margin-left: 3px;
  stroke: currentColor;
  vertical-align: -1px;
  transition: transform 0.2s ease;
}
.nav__item:hover > a .caret,
.nav__item:focus-within > a .caret { transform: rotate(180deg); }
.nav__item--has-sub::after {
  content: "";
  position: absolute;
  top: 100%; left: -10px; right: -10px;
  height: 12px;
}
.nav-sub {
  position: absolute;
  top: calc(100% + 4px);
  left: 50%;
  min-width: 238px;
  padding: 7px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  box-shadow: var(--shadow-pop);
  opacity: 0;
  visibility: hidden;
  transform: translateX(-50%) translateY(6px);
  transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s;
  pointer-events: none;
}
.nav__item:hover .nav-sub,
.nav__item:focus-within .nav-sub {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
  pointer-events: auto;
}
.nav__links .nav-sub a,
.nav.is-scrolled .nav__links .nav-sub a {
  display: block;
  padding: 9px 11px;
  font-size: 13px;
  color: var(--text);
  border-radius: var(--radius-s);
}
.nav__links .nav-sub a:hover,
.nav.is-scrolled .nav__links .nav-sub a:hover {
  background: var(--bg-gray);
  color: var(--text);
}
.nav-sub__name { display: block; font-size: 13.5px; font-weight: 600; }
.nav-sub__desc { display: block; margin-top: 1px; font-size: 11.5px; font-weight: 400; color: var(--text-3); }

/* ---------- 移动端抽屉：产品分组 ---------- */
.drawer__group-label {
  padding: 14px 4px 7px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--text-inv-3);
}
.drawer__links a.drawer__sub { padding-left: 16px; font-size: 14px; }
.drawer__links a.drawer__sub .en-sub {
  font-size: 11px;
  font-weight: 400;
  color: var(--text-inv-3);
  margin-left: 5px;
}

/* ---------- 首页产品矩阵三卡 ---------- */
.pmatrix { display: grid; gap: 16px; }
@media (min-width: 900px) { .pmatrix { grid-template-columns: repeat(3, 1fr); gap: 18px; } }
.pm-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  padding: 24px 22px;
  box-shadow: var(--shadow-card);
  transition: transform 0.2s ease, box-shadow 0.25s ease, border-color 0.2s ease;
  overflow: hidden;
}
.pm-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-pop); border-color: #D8DEE8; }
.pm-card--flag {
  background: linear-gradient(155deg, var(--navy-2), var(--navy-deep));
  border-color: var(--navy-3);
  color: var(--text-inv);
}
.pm-card--flag:hover { border-color: rgba(255, 255, 255, 0.22); }
.pm-card--flag::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(70% 60% at 85% 0%, rgba(255, 107, 53, 0.14), transparent 60%);
  pointer-events: none;
}
.pm-card > * { position: relative; }
.pm-card__tag {
  display: inline-block;
  align-self: flex-start;
  padding: 3px 10px;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.05em;
  border-radius: 999px;
  background: var(--orange-soft);
  color: var(--orange-dark);
  margin-bottom: 13px;
}
.pm-card--flag .pm-card__tag { background: rgba(255, 107, 53, 0.18); color: var(--orange-light); }
.pm-card__name { font-size: 18px; font-weight: 800; letter-spacing: -0.01em; line-height: 1.35; }
.pm-card__name .en-sub {
  display: block;
  margin-top: 2px;
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-3);
}
.pm-card--flag .pm-card__name .en-sub { color: var(--text-inv-3); }
.pm-card__slogan { margin-top: 6px; font-size: 13px; color: var(--text-2); }
.pm-card--flag .pm-card__slogan { color: var(--text-inv-2); }
.pm-card__stats {
  display: flex;
  margin-top: 18px;
  padding: 12px 0;
  border-top: 1px solid var(--line-2);
  border-bottom: 1px solid var(--line-2);
}
.pm-card--flag .pm-card__stats { border-color: var(--line-dark); }
.pm-card__stat { flex: 1; min-width: 0; }
.pm-card__stat + .pm-card__stat { border-left: 1px solid var(--line-2); padding-left: 12px; margin-left: 2px; }
.pm-card--flag .pm-card__stat + .pm-card__stat { border-left-color: var(--line-dark); }
.pm-card__stat .num {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--orange);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
.pm-card--flag .pm-card__stat .num { color: var(--orange-light); }
.pm-card__stat .lab { margin-top: 2px; font-size: 11px; line-height: 1.4; color: var(--text-3); }
.pm-card--flag .pm-card__stat .lab { color: var(--text-inv-3); }
.pm-card__desc { margin-top: 14px; font-size: 12.5px; line-height: 1.7; color: var(--text-2); flex: 1; }
.pm-card--flag .pm-card__desc { color: var(--text-inv-2); }
.pm-card__link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 16px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--orange);
}
.pm-card--flag .pm-card__link { color: var(--orange-light); }
.pm-card__link:hover { color: var(--orange-dark); }
.pm-card--flag .pm-card__link:hover { color: #fff; }

/* ---------- Hero 右侧：产品矩阵迷你卡（替代旧Logo轨道） ---------- */
.hmx {
  position: relative;
  width: min(78vw, 340px);
  height: 264px;
  margin: 0 auto;
}
@media (min-width: 768px) { .hmx { width: 360px; height: 296px; } }
.hmx__card {
  position: absolute;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 14px 16px;
  background: rgba(255, 255, 255, 0.055);
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: var(--radius-m);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.28);
  transition: background 0.2s ease, border-color 0.2s ease;
  animation: float 6s ease-in-out infinite;
}
.hmx__card:hover {
  background: rgba(255, 255, 255, 0.09);
  border-color: rgba(255, 255, 255, 0.26);
}
.hmx__card--main {
  top: 0; left: 50%;
  width: 236px;
  margin-left: -118px;
  padding: 16px 18px;
  background: rgba(255, 255, 255, 0.085);
  animation-delay: -1s;
}
.hmx__card--a { bottom: 30px; left: 0; width: 160px; animation-delay: -2.6s; }
.hmx__card--b { bottom: 0; right: 0; width: 160px; animation-delay: -4.2s; }
@media (max-width: 767px) {
  .hmx__card--main { width: 216px; margin-left: -108px; }
  .hmx__card--a, .hmx__card--b { width: 148px; }
}
.hmx__tag {
  align-self: flex-start;
  padding: 2px 9px;
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: #fff;
  background: var(--orange);
  border-radius: 999px;
}
.hmx__head { display: flex; align-items: center; gap: 8px; }
.hmx__head svg { flex: none; width: 17px; height: 17px; stroke: var(--orange-light); }
.hmx__name { font-size: 13.5px; font-weight: 700; color: var(--text-inv); letter-spacing: -0.005em; }
.hmx__card--a .hmx__name, .hmx__card--b .hmx__name { font-size: 12.5px; }
.hmx__metric { display: flex; flex-wrap: wrap; align-items: baseline; gap: 2px 7px; }
.hmx__metric .num {
  font-size: 21px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--orange-light);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
.hmx__card--a .hmx__metric .num, .hmx__card--b .hmx__metric .num { font-size: 17px; }
.hmx__metric .lab { font-size: 11px; color: var(--text-inv-3); white-space: nowrap; }

/* ============================================================
   v4.2 增量：S级皮肤
   入场节奏 / reveal错落 / 按钮四级 / Hero产品剪影 / hover微交互
   表单聚焦光晕 / 灰区渐变融合 / 移动端悬浮CTA / 触控热区44px
   ============================================================ */

/* ---------- Hero 入场节奏（标题→副标→按钮→背书→右卡 依次浮现） ---------- */
@keyframes heroUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: none; } }
.hero__title    { animation: heroUp 0.65s cubic-bezier(0.22, 0.61, 0.36, 1) both; }
.hero__sub      { animation: heroUp 0.65s cubic-bezier(0.22, 0.61, 0.36, 1) 0.10s both; }
.hero__actions  { animation: heroUp 0.65s cubic-bezier(0.22, 0.61, 0.36, 1) 0.20s both; }
.hero__meta     { animation: heroUp 0.65s cubic-bezier(0.22, 0.61, 0.36, 1) 0.30s both; }
.hmx            { animation: heroUp 0.75s cubic-bezier(0.22, 0.61, 0.36, 1) 0.34s both; }

/* ---------- reveal 手动延时档（JS自动错落优先，此为备用） ---------- */
.reveal--d1 { transition-delay: 0.08s; }
.reveal--d2 { transition-delay: 0.16s; }
.reveal--d3 { transition-delay: 0.24s; }

/* ---------- 按钮体系：微交互 + 文字按钮（第四级） ---------- */
.btn--primary:hover { transform: translateY(-1px); box-shadow: 0 6px 18px rgba(255, 107, 53, 0.38); }
.btn--ghost:hover { background: var(--bg-gray); }
.btn--ghost-inv:hover { background: rgba(255, 255, 255, 0.07); }
.btn--text {
  padding: 6px 2px;
  color: var(--orange);
  background: none;
  border: none;
  border-radius: 0;
}
.btn--text:hover { color: var(--orange-dark); }
a:focus-visible, button:focus-visible, .btn:focus-visible {
  outline: 2px solid rgba(255, 107, 53, 0.55);
  outline-offset: 2px;
}

/* ---------- 链接下划线划入动画 ---------- */
.pm-card__link {
  background: linear-gradient(currentColor, currentColor) no-repeat 0 100% / 0 1.5px;
  transition: background-size 0.25s ease, color 0.2s ease;
  padding-bottom: 2px;
}
.pm-card__link:hover { background-size: 100% 1.5px; }

/* ---------- Hero 迷你卡：产品界面剪影（纯CSS，零图片零编造文案） ---------- */
.hmx { height: 316px; }
@media (min-width: 768px) { .hmx { height: 336px; } }
.hmx__card--a { bottom: 34px; }
.hmx__ui { display: block; margin-top: 2px; }
/* 旗舰·煋旺AI：AI对话剪影（气泡 + 输入条） */
.hmx__ui--chat { display: grid; gap: 5px; }
.hmx__ui--chat i { display: block; height: 8px; border-radius: 99px; }
.hmx__ui--chat .l1 { width: 78%; background: rgba(255, 255, 255, 0.22); }
.hmx__ui--chat .l2 { width: 52%; margin-left: auto; background: rgba(255, 140, 90, 0.50); }
.hmx__ui--chat .l3 { width: 64%; background: rgba(255, 255, 255, 0.14); }
.hmx__ui--chat .bar {
  margin-top: 2px; height: 12px; border-radius: 99px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.10);
}
/* 煋鉴：代码扫描剪影（代码条 + 扫描光带） */
.hmx__ui--code { position: relative; display: grid; gap: 4px; padding: 3px 0; overflow: hidden; }
.hmx__ui--code i { display: block; height: 6px; border-radius: 99px; background: rgba(255, 255, 255, 0.16); }
.hmx__ui--code .c1 { width: 62%; }
.hmx__ui--code .c2 { width: 84%; background: rgba(120, 180, 255, 0.38); }
.hmx__ui--code .c3 { width: 44%; }
.hmx__ui--code::after {
  content: "";
  position: absolute; left: 0; right: 0; top: 0;
  height: 9px;
  background: linear-gradient(180deg, transparent, rgba(255, 107, 53, 0.45), transparent);
  animation: scanline 2.8s ease-in-out infinite;
}
@keyframes scanline { 0%, 100% { transform: translateY(-8px); } 50% { transform: translateY(24px); } }
/* 节能阀：成本递减柱 */
.hmx__ui--bars { display: flex; align-items: flex-end; gap: 4px; height: 24px; }
.hmx__ui--bars i { flex: 1; border-radius: 2px 2px 0 0; background: rgba(255, 255, 255, 0.18); }
.hmx__ui--bars i:nth-child(1) { height: 100%; }
.hmx__ui--bars i:nth-child(2) { height: 80%; }
.hmx__ui--bars i:nth-child(3) { height: 58%; }
.hmx__ui--bars i:nth-child(4) { height: 40%; background: rgba(255, 140, 90, 0.55); }

/* ---------- 灰区上下渐变融合（去硬切边） ---------- */
.section--gray {
  background: linear-gradient(180deg,
    rgba(246, 248, 251, 0) 0%, var(--bg-gray) 56px,
    var(--bg-gray) calc(100% - 56px), rgba(246, 248, 251, 0) 100%);
}

/* ---------- 表单聚焦光晕 + 错误态 ---------- */
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--orange);
  outline: none;
  box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.13);
}
.form-group input.is-error,
.form-group textarea.is-error {
  border-color: #d43a3a;
  box-shadow: 0 0 0 3px rgba(212, 58, 58, 0.10);
}

/* ---------- 移动端悬浮CTA条（JS注入，contact页除外） ---------- */
.m-cta {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 90;
  display: flex; gap: 10px;
  padding: 10px 14px calc(10px + env(safe-area-inset-bottom, 0px));
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: saturate(1.6) blur(12px);
  -webkit-backdrop-filter: saturate(1.6) blur(12px);
  border-top: 1px solid var(--line);
  transform: translateY(105%);
  transition: transform 0.3s cubic-bezier(0.22, 0.61, 0.36, 1);
}
.m-cta.is-show { transform: none; }
.m-cta .btn { flex: 1; min-height: 44px; }
@media (min-width: 768px) { .m-cta { display: none; } }

/* ---------- 触控热区 ≥44px ---------- */
.drawer__links a { display: flex; align-items: center; min-height: 46px; }
.footer__col a { display: inline-block; padding: 4px 0; }
@media (max-width: 767px) {
  .btn { min-height: 44px; }
  .pm-card__link { padding: 8px 0 10px; }
}