/* ============================================================
   广东锦天新能源 - 全局样式
   设计基准取自参考站 joonsolar.com 的色彩体系，
   适配光伏行业：蓝（清洁能源）+ 浅色表面 + 强对比强调色
   ============================================================ */

:root {
  /* 表面与文字 */
  --paper: #ffffff;
  --surface: #f2f7fa;
  --surface-low: #e9f2f7;
  --surface-high: #dbe8f0;
  --ink: #132f47;
  --ink-soft: #2c4a63;
  --muted: #617486;
  --line: #d7e3ea;

  /* 品牌色 */
  --brand: #137fc1;
  --brand-container: #2898d3;
  --brand-strong: #0a3152;
  --accent: #57b7ea;
  --accent-strong: #0874b3;
  --energy: #dc4146;
  --energy-hover: #c93238;

  --shadow-soft: 0 22px 58px rgba(10, 49, 82, 0.11);
  --shadow-card: 0 14px 34px rgba(10, 49, 82, 0.08);

  --radius: 14px;
  --radius-sm: 9px;
  --shell: 1200px;
  --header-h: 76px;

  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
  --font-display: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-accent: "Roboto Condensed", "Arial Narrow", var(--font-body);
}

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

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

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }

/* 列表默认项目符号兜底：所有导航与自定义列表均无黑色圆点 */
.main-nav,
.sub-nav,
.side-list,
.footer-contact,
.assessment__points,
.feature-list,
.contact-list,
.timeline {
  list-style: none;
}

h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 700; line-height: 1.25; margin: 0 0 0.5em; }
p { margin: 0 0 1em; }

.shell { width: 100%; max-width: var(--shell); margin: 0 auto; padding: 0 24px; }

/* ---------- 排版工具 ---------- */

.eyebrow {
  display: inline-block;
  font-family: var(--font-accent);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--brand);
  margin-bottom: 12px;
}
.eyebrow.is-light { color: var(--accent); }

.section { padding: 84px 0; }
.section--surface { background: var(--surface); }
.section--tight { padding: 60px 0; }

.section-heading { max-width: 680px; margin-bottom: 44px; }
.section-heading.is-center { margin-left: auto; margin-right: auto; text-align: center; }
.section-heading h2 { font-size: clamp(26px, 3.4vw, 40px); letter-spacing: -0.01em; }
.section-heading p { color: var(--muted); font-size: 16px; margin-bottom: 0; }

.heading-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 40px;
}
.heading-row .section-heading { margin-bottom: 0; }

.arrow-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  color: var(--brand);
  white-space: nowrap;
  transition: gap 0.2s ease;
}
.arrow-link:hover { gap: 13px; }
.arrow-link.is-light { color: var(--accent); }

/* ---------- 按钮 ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 13px 28px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
}
.btn--primary { background: var(--brand); color: #fff; }
.btn--primary:hover { background: var(--accent-strong); }
.btn--dark { background: var(--brand-strong); color: #fff; }
.btn--dark:hover { background: var(--brand); }
.btn--ghost { border-color: var(--line); background: transparent; color: var(--ink); }
.btn--ghost:hover { border-color: var(--brand); color: var(--brand); }
.btn--block { width: 100%; }

/* ---------- 移动端底部快捷条（仅手机显示） ---------- */

.mobile-bar {
  display: none;
  position: fixed;
  bottom: 0; left: 0; right: 0;
  z-index: 70;
  background: var(--brand-strong);
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-bottom: env(safe-area-inset-bottom, 0);
}
.mobile-bar__item {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 11px 4px;
  color: rgba(255, 255, 255, 0.86);
  font-size: 13px;
  font-weight: 500;
  border-right: 1px solid rgba(255, 255, 255, 0.1);
}
.mobile-bar__item:last-child { border-right: none; }
.mobile-bar__item:active { background: rgba(255, 255, 255, 0.1); }

@media (max-width: 860px) {
  .mobile-bar { display: flex; }
  body { padding-bottom: 54px; }
  .site-footer { padding-bottom: 8px; }
}

/* ---------- 页头 ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.site-header__inner {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.brand { display: flex; align-items: center; gap: 12px; flex-shrink: 1; min-width: 0; }
.brand__mark {
  width: 42px; height: 42px;
  flex-shrink: 0;
  border-radius: 50%;
  overflow: hidden;
  background: #fff;
  box-shadow: 0 1px 4px rgba(10, 49, 82, .18);
  display: grid; place-items: center;
}
.brand__mark img {
  width: 100%; height: 100%;
  object-fit: contain;
  display: block;
}
.brand__text { display: flex; flex-direction: column; line-height: 1.25; min-width: 0; }
.brand__name {
  font-weight: 700; font-size: 17px; letter-spacing: -0.01em;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 2px;
  /* 重置列表默认项目符号，否则每个导航项前会渲染出黑色圆点 */
  list-style: none;
  margin: 0;
  padding: 0;
}
.main-nav > li { position: relative; }
.main-nav a, .main-nav .nav-link {
  display: flex; align-items: center; gap: 5px;
  padding: 10px 13px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 15px;
  color: var(--ink);
  cursor: pointer;
  background: none; border: none;
  white-space: nowrap;
  transition: background 0.18s ease, color 0.18s ease;
}
.main-nav a:hover, .main-nav .nav-link:hover { background: var(--surface); color: var(--brand); }
/* 有下拉的栏目：悬停时整项变色提示，不再绘制指示符 */
.main-nav .has-child > .nav-link { color: var(--ink); }
.sub-nav {
  position: absolute; top: 100%; left: 0;
  min-width: 190px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-card);
  padding: 8px;
  margin: 0;
  list-style: none;
  opacity: 0; visibility: hidden;
  transform: translateY(-6px);
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
}
.has-child:hover .sub-nav { opacity: 1; visibility: visible; transform: translateY(0); }
.sub-nav a { display: block; padding: 9px 14px; border-radius: 6px; font-weight: 500; font-size: 14.5px; }
.sub-nav a:hover { background: var(--surface); color: var(--brand); }

.header-actions { display: flex; align-items: center; gap: 12px; }
.header-phone { text-align: right; line-height: 1.3; }
.header-phone strong { display: block; font-family: var(--font-accent); font-size: 19px; color: var(--brand-strong); }
.header-phone span { font-size: 11px; color: var(--muted); }

.nav-toggle {
  display: none;
  width: 42px; height: 42px;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: var(--radius-sm);
  cursor: pointer;
  padding: 0;
  place-items: center;
}
.nav-toggle span {
  display: block; width: 18px; height: 2px;
  background: var(--ink); position: relative;
  transition: background 0.2s ease;
}
.nav-toggle span::before, .nav-toggle span::after {
  content: ""; position: absolute; left: 0; width: 18px; height: 2px;
  background: var(--ink); transition: transform 0.2s ease;
}
.nav-toggle span::before { top: -6px; }
.nav-toggle span::after { top: 6px; }
.nav-toggle.is-open span { background: transparent; }
.nav-toggle.is-open span::before { transform: rotate(45deg) translateY(6px); }
.nav-toggle.is-open span::after { transform: rotate(-45deg) translateY(-6px); }

/* ---------- 首屏 ---------- */

.hero {
  position: relative;
  min-height: clamp(460px, 68vh, 660px);
  display: flex; align-items: center;
  overflow: hidden;
  background: var(--brand-strong);
}
.hero__slides { position: absolute; inset: 0; }
.hero__slide {
  position: absolute; inset: 0;
  opacity: 0; transition: opacity 0.9s ease;
}
.hero__slide.is-active { opacity: 1; }
.hero__media { position: absolute; inset: 0; background-size: cover; background-position: center; }
.hero__shade {
  position: absolute; inset: 0;
  background: linear-gradient(100deg, rgba(10, 49, 82, 0.9) 0%, rgba(10, 49, 82, 0.62) 46%, rgba(10, 49, 82, 0.32) 100%);
}
.hero__content { position: relative; z-index: 2; padding: 90px 0; color: #fff; max-width: 680px; }
.hero__content h1 { font-size: clamp(30px, 5vw, 56px); line-height: 1.16; letter-spacing: -0.02em; margin-bottom: 18px; }
.hero__content h1 strong { color: var(--accent); font-weight: 700; }
.hero__content p { font-size: clamp(15px, 1.7vw, 19px); color: rgba(255, 255, 255, 0.85); max-width: 560px; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }
.hero__controls {
  position: absolute; z-index: 3; right: 24px; bottom: 34px;
  display: flex; align-items: center; gap: 14px;
  color: #fff;
}
.hero__controls button {
  width: 40px; height: 40px; border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.4);
  background: rgba(255, 255, 255, 0.1);
  color: #fff; cursor: pointer; display: grid; place-items: center;
  transition: background 0.2s ease;
}
.hero__controls button:hover { background: rgba(255, 255, 255, 0.24); }
.hero__counter { font-family: var(--font-accent); font-size: 14px; letter-spacing: 0.1em; }
.hero__counter i { opacity: 0.5; font-style: normal; margin: 0 3px; }

/* ---------- 数据条 ---------- */

.stats-strip { background: var(--brand-strong); color: #fff; padding: 40px 0; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.stat-item { text-align: center; }
.stat-item strong {
  font-family: var(--font-accent);
  font-size: clamp(34px, 4.4vw, 50px);
  line-height: 1; display: block;
  color: var(--accent);
}
.stat-item em { font-style: normal; font-size: 16px; margin-left: 3px; color: rgba(255, 255, 255, 0.9); }
.stat-item span { display: block; margin-top: 10px; font-size: 14px; color: rgba(255, 255, 255, 0.72); }

/* ---------- 屋顶测算器（移植自 joonsolar） ---------- */

.assessment { background: var(--surface); }
.assessment__grid { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: 48px; align-items: start; }
.assessment__intro h2 { font-size: clamp(26px, 3.4vw, 40px); margin-bottom: 16px; }
.assessment__intro p { color: var(--muted); }
.assessment__lead { font-size: 15.5px; line-height: 1.8; margin-bottom: 26px; }
.assessment__lead strong { color: var(--brand); font-weight: 600; }

/* 左栏价值要点 */
.assessment__points { list-style: none; margin: 0 0 24px; padding: 0; display: grid; gap: 18px; }
.assessment__points li { display: flex; gap: 14px; align-items: flex-start; }
.assessment__point-icon {
  flex-shrink: 0;
  width: 38px; height: 38px;
  border-radius: 10px;
  background: #fff;
  border: 1px solid var(--line);
  color: var(--brand);
  display: grid; place-items: center;
}
.assessment__points strong { display: block; font-size: 15px; margin-bottom: 3px; }
.assessment__points span:not(.assessment__point-icon) { font-size: 13.5px; color: var(--muted); line-height: 1.65; }

/* 左栏数据佐证 */
.assessment__proof {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}
.assessment__proof-item { text-align: left; }
.assessment__proof-item strong {
  display: block;
  font-family: var(--font-accent);
  font-size: 28px;
  line-height: 1.1;
  color: var(--brand);
}
.assessment__proof-item strong span { font-size: 14px; margin-left: 2px; }
.assessment__proof-item > span { font-size: 12px; color: var(--muted); line-height: 1.5; display: block; margin-top: 4px; }
.inline-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.inline-tags span {
  padding: 6px 15px; border-radius: 999px;
  background: #fff; border: 1px solid var(--line);
  font-size: 13px; color: var(--brand-strong); font-weight: 500;
}

.calculator {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  padding: 30px;
}
.calculator fieldset { border: none; margin: 0 0 20px; padding: 0; }
.calculator legend,
.calculator__label {
  display: block;
  font-size: 14px; font-weight: 600; color: var(--ink);
  margin-bottom: 9px;
  padding: 0;
}
.calculator__row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.calculator input,
.calculator select {
  width: 100%;
  padding: 11px 13px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: var(--surface);
  outline: none;
  transition: border-color 0.18s ease, background 0.18s ease;
  font-size: 15px;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23617486' stroke-width='1.8' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 13px center;
  padding-right: 34px;
}
.calculator select:disabled { opacity: 0.55; cursor: not-allowed; }
.calculator input:focus, .calculator select:focus { border-color: var(--brand); background-color: #fff; }
.calculator__input-wrap { position: relative; }
.calculator__input-wrap input { padding-right: 42px; }
.calculator__unit {
  position: absolute; right: 14px; top: 50%; transform: translateY(-50%);
  font-size: 14px; color: var(--muted); pointer-events: none;
}
.roof-types { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.roof-types--3 { grid-template-columns: repeat(3, 1fr); }
.roof-type {
  padding: 11px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: var(--surface);
  font-size: 14.5px; font-weight: 600;
  cursor: pointer;
  transition: all 0.18s ease;
  display: flex; flex-direction: column; align-items: center; gap: 2px;
  text-align: center;
}
.roof-type:hover { border-color: var(--brand); }
.roof-type.is-active { background: var(--brand); border-color: var(--brand); color: #fff; }
.roof-type__price { font-size: 11.5px; font-weight: 500; opacity: 0.72; }
.calculator__row--2 { grid-template-columns: repeat(2, 1fr); }
.calculator__hint { font-size: 12px; color: var(--muted); margin-top: 8px; line-height: 1.6; }

/* 成本估算区 */
.calculator__cost {
  margin-top: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  overflow: hidden;
}
.calculator__cost-head {
  padding: 18px 20px 16px;
  background: var(--surface-low);
  border-bottom: 1px solid var(--line);
}
.calculator__cost-total {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(24px, 3.2vw, 32px);
  line-height: 1.15;
  color: var(--brand-strong);
  margin: 6px 0 4px;
}
.calculator__cost-sub { font-size: 13px; color: var(--muted); }
.calculator__cost-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border-bottom: 1px solid var(--line);
}
.cost-metric {
  background: #fff;
  padding: 15px 16px;
  display: flex; flex-direction: column; gap: 4px;
}
.cost-metric__label { font-size: 12px; color: var(--muted); }
.cost-metric__value {
  font-family: var(--font-accent);
  font-size: 17px; font-weight: 700;
  color: var(--brand);
  line-height: 1.25;
}
.calculator__breakdown { padding: 16px 20px 18px; }
.calculator__breakdown-title { font-size: 13.5px; font-weight: 600; color: var(--ink); margin-bottom: 12px; }
.cost-breakdown-list { display: grid; gap: 9px; }
.cost-breakdown-row {
  display: grid;
  grid-template-columns: 76px 1fr 78px;
  align-items: center;
  gap: 10px;
  font-size: 12.5px;
}
.cost-breakdown-label { color: var(--ink-soft); }
.cost-breakdown-bar {
  height: 7px;
  background: var(--surface-high);
  border-radius: 999px;
  overflow: hidden;
  display: block;
}
.cost-breakdown-bar i { display: block; height: 100%; background: var(--brand); border-radius: 999px; }
.cost-breakdown-value { text-align: right; color: var(--muted); font-variant-numeric: tabular-nums; }

.calculator__result {
  margin-top: 22px;
  border-radius: var(--radius);
  background: var(--brand-strong);
  color: #fff;
  padding: 24px;
}
.calculator__result-main { margin-bottom: 16px; }
.calculator__result-kicker {
  font-family: var(--font-accent);
  font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase;
  color: rgba(255, 255, 255, 0.62);
}
.calculator__result-value {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 40px);
  line-height: 1.1; margin: 8px 0 4px;
}
.calculator__result-sub { font-size: 14px; color: rgba(255, 255, 255, 0.75); }
.calculator__result-meta {
  display: grid; gap: 7px;
  font-size: 14px; color: rgba(255, 255, 255, 0.82);
  border-top: 1px solid rgba(255, 255, 255, 0.16);
  padding-top: 14px;
}
.calculator__result-meta span { display: flex; justify-content: space-between; gap: 12px; }
.calculator__note { display: block; margin-top: 14px; font-size: 12px; line-height: 1.7; color: var(--muted); text-align: center; }
.calculator__cta { margin-top: 18px; }

/* ---------- 卡片网格 ---------- */

.grid { display: grid; gap: 26px; }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }

.service-card {
  position: relative;
  display: flex; flex-direction: column;
  min-height: 320px;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--line);
  transition: transform 0.28s ease, box-shadow 0.28s ease, border-color 0.28s ease;
}
.service-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-soft); border-color: transparent; }
.service-card__bg {
  position: absolute; inset: 0;
  background: linear-gradient(150deg, var(--brand-strong) 0%, #124a70 100%);
  opacity: 0.95;
}
.service-card__body { position: relative; z-index: 2; padding: 28px 24px; color: #fff; flex: 1; display: flex; flex-direction: column; }
.service-card__index {
  font-family: var(--font-accent); font-size: 13px; letter-spacing: 0.14em;
  color: var(--accent); margin-bottom: 12px; display: block;
}
.service-card__eyebrow { font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: rgba(255, 255, 255, 0.55); }
.service-card h3 { font-size: 21px; margin: 8px 0 12px; }
.service-card p {
  color: rgba(255, 255, 255, 0.76); font-size: 14px; flex: 1;
  display: -webkit-box; -webkit-line-clamp: 5; line-clamp: 5;
  -webkit-box-orient: vertical; overflow: hidden;
}
.service-card__link { font-weight: 600; color: var(--accent); font-size: 14.5px; margin-top: 14px; }

/* 四列布局：卡片更紧凑 */
.grid--service { gap: 18px; }
.grid--service .service-card { min-height: 300px; }
.grid--service .service-card__body { padding: 24px 20px; }
.grid--service .service-card h3 { font-size: 19px; }
.grid--service .service-card p { font-size: 13.5px; -webkit-line-clamp: 4; line-clamp: 4; }

.case-card {
  display: flex; flex-direction: column;
  border-radius: var(--radius);
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--line);
  transition: transform 0.28s ease, box-shadow 0.28s ease;
}
.case-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-soft); }
.case-card__media {
  position: relative; aspect-ratio: 16 / 10;
  background: linear-gradient(140deg, var(--surface-high), var(--surface-low));
  overflow: hidden;
}
.case-card__media img { width: 100%; height: 100%; object-fit: cover; }
.case-card__tag {
  position: absolute; top: 14px; left: 14px;
  padding: 4px 11px; border-radius: 999px;
  background: rgba(10, 49, 82, 0.86); color: #fff;
  font-size: 12px; font-weight: 600;
}
.case-card__scale {
  position: absolute; bottom: 14px; right: 14px;
  font-family: var(--font-accent); font-size: 20px; font-weight: 700;
  color: #fff; text-shadow: 0 2px 10px rgba(0, 0, 0, 0.45);
}
.case-card__body { padding: 20px 22px 24px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.case-card__meta { display: flex; flex-wrap: wrap; gap: 12px; font-size: 13px; color: var(--muted); }
.case-card h3 { font-size: 17.5px; margin: 0; line-height: 1.4; }
.case-card p { font-size: 14px; color: var(--muted); margin: 0; flex: 1; }

.news-card {
  display: flex; gap: 18px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}
.news-card:last-child { border-bottom: none; }
.news-card__date {
  flex-shrink: 0; width: 74px; text-align: center;
  font-family: var(--font-accent);
  border-right: 1px solid var(--line); padding-right: 14px;
}
.news-card__date strong { display: block; font-size: 24px; line-height: 1.1; color: var(--brand); }
.news-card__date span { font-size: 12px; color: var(--muted); }
.news-card__body h3 { font-size: 16.5px; margin: 0 0 6px; line-height: 1.45; }
.news-card__body p { font-size: 13.5px; color: var(--muted); margin: 0; }

.news-item {
  display: flex; flex-direction: column;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden; background: #fff;
  transition: transform 0.26s ease, box-shadow 0.26s ease;
}
.news-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-card); }
.news-item__media { aspect-ratio: 16 / 9; background: linear-gradient(140deg, var(--surface-high), var(--surface-low)); }
.news-item__media img { width: 100%; height: 100%; object-fit: cover; }
.news-item__body { padding: 20px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.news-item__meta { display: flex; gap: 12px; font-size: 12.5px; color: var(--muted); }
.news-item h3 { font-size: 17px; margin: 0; line-height: 1.45; }
.news-item p { font-size: 14px; color: var(--muted); margin: 0; flex: 1; }

/* ---------- 表单 ---------- */

.form-grid { display: grid; gap: 16px; }
.form-row { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font-size: 13.5px; font-weight: 600; color: var(--ink); }
.field label .req { color: var(--energy); }
.field input, .field select, .field textarea {
  padding: 11px 13px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: #fff;
  outline: none;
  transition: border-color 0.18s ease;
  font-size: 15px;
  width: 100%;
}
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--brand); }
.field textarea { resize: vertical; min-height: 96px; }
.field__error { font-size: 12.5px; color: var(--energy); }
.form-success {
  padding: 14px 16px; border-radius: var(--radius-sm);
  background: #eaf7ee; border: 1px solid #b7e3c3; color: #1a6b32; font-size: 14.5px;
}
.form-error {
  padding: 14px 16px; border-radius: var(--radius-sm);
  background: #fdecec; border: 1px solid #f4c4c4; color: #a52020; font-size: 14.5px;
}

/* ---------- 详情页 ---------- */

.page-hero {
  position: relative;
  padding: 78px 0;
  background: linear-gradient(135deg, var(--brand-strong) 0%, #124a70 100%);
  color: #fff;
  overflow: hidden;
}
.page-hero::after {
  content: ""; position: absolute; inset: 0;
  background-image: radial-gradient(circle at 82% 22%, rgba(87, 183, 234, 0.28), transparent 58%);
}
.page-hero__inner { position: relative; z-index: 2; max-width: 780px; }
.page-hero h1 { font-size: clamp(27px, 4.2vw, 46px); margin-bottom: 14px; }
.page-hero p { color: rgba(255, 255, 255, 0.78); font-size: 16.5px; margin: 0; }
.breadcrumbs { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; font-size: 13.5px; color: rgba(255, 255, 255, 0.6); }
.breadcrumbs a:hover { color: var(--accent); }

.content-grid { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 52px; align-items: start; }
.prose { font-size: 16px; line-height: 1.9; color: var(--ink-soft); }
.prose h2 { font-size: 26px; margin: 40px 0 16px; color: var(--ink); }
.prose h3 { font-size: 20px; margin: 30px 0 12px; color: var(--ink); }
.prose p { margin-bottom: 1.1em; }
.prose ul, .prose ol { padding-left: 1.3em; margin-bottom: 1.2em; }
.prose li { margin-bottom: 0.45em; }
.prose strong { color: var(--ink); }

/* 正文内嵌图片与视频（富文本编辑器插入） */
.prose figure.rte-figure,
.prose figure {
  margin: 30px 0;
}
.prose figure img,
.prose img {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 0 auto;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: var(--surface-low);
}
.prose figure video,
.prose video {
  display: block;
  width: 100%;
  max-width: 100%;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: #000;
}
.prose figure figcaption,
.prose figcaption {
  margin-top: 10px;
  font-size: 13.5px;
  color: var(--muted);
  text-align: center;
  line-height: 1.6;
}
/* 富文本里可能带 <p><br></p> 占位，收尾时去掉多余空行 */
.prose p:has(> br:only-child) { margin-bottom: 0; }

.sidebar { position: sticky; top: calc(var(--header-h) + 24px); display: flex; flex-direction: column; gap: 22px; }
.side-card { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: #fff; }
.side-card__head { background: var(--brand-strong); color: #fff; padding: 15px 20px; font-weight: 600; font-size: 15px; }
.side-card__body { padding: 18px 20px; }
.side-list { list-style: none; margin: 0; padding: 0; }
.side-list li { border-bottom: 1px solid var(--line); }
.side-list li:last-child { border-bottom: none; }
.side-list a { display: block; padding: 11px 0; font-size: 14.5px; color: var(--ink-soft); }
.side-list a:hover { color: var(--brand); }

.contact-list { list-style: none; margin: 0; padding: 0; }
.contact-list li { display: flex; gap: 12px; padding: 11px 0; border-bottom: 1px dashed var(--line); font-size: 14.5px; }
.contact-list li:last-child { border-bottom: none; }
.contact-list strong { display: block; font-size: 12.5px; color: var(--muted); font-weight: 500; }

.timeline { list-style: none; margin: 0; padding: 0 0 0 26px; border-left: 2px solid var(--line); }
.timeline li { position: relative; padding: 0 0 26px 22px; }
.timeline li::before {
  content: ""; position: absolute; left: -33px; top: 6px;
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--brand); border: 3px solid #fff; box-shadow: 0 0 0 2px var(--line);
}
.timeline__year { font-family: var(--font-accent); font-size: 17px; font-weight: 700; color: var(--brand); display: block; }
.timeline__text { font-size: 14.5px; color: var(--ink-soft); }

.metric-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); gap: 18px; }
.metric-box { padding: 22px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--line); text-align: center; }
.metric-box strong { font-family: var(--font-accent); font-size: 32px; color: var(--brand); display: block; line-height: 1.1; }
.metric-box em { font-style: normal; font-size: 15px; color: var(--ink); margin-left: 2px; }
.metric-box span { display: block; margin-top: 7px; font-size: 13.5px; color: var(--muted); }

.feature-list { display: grid; gap: 16px; }
.feature-item { display: flex; gap: 16px; padding: 20px 22px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
.feature-item__icon {
  flex-shrink: 0; width: 44px; height: 44px; border-radius: 11px;
  background: linear-gradient(140deg, var(--brand), var(--brand-strong));
  display: grid; place-items: center; color: #fff; font-size: 19px;
}
.feature-item h4 { margin: 0 0 5px; font-size: 16px; }
.feature-item p { margin: 0; font-size: 14px; color: var(--muted); }

/* ---------- 解决方案结构化区块 ---------- */

.benefit-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 12px;
}
.benefit-card {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  background: var(--surface);
  border: 1px solid var(--line);
  font-size: 14.5px;
  font-weight: 500;
  color: var(--ink);
}
.benefit-card svg { flex-shrink: 0; color: var(--brand); }

.tag--lg { font-size: 13.5px; padding: 7px 16px; }

.system-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
}
.system-card {
  position: relative;
  padding: 18px 18px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: #fff;
  overflow: hidden;
}
.system-card::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--brand);
}
.system-card__index {
  display: block;
  font-family: var(--font-accent);
  font-size: 11.5px;
  color: var(--muted);
  margin-bottom: 5px;
}
.system-card strong { font-size: 15px; }

/* ---------- 合作品牌 ---------- */

.brand-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(158px, 1fr));
  gap: 14px;
}
.brand-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 22px 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  text-align: center;
  transition: transform 0.24s ease, box-shadow 0.24s ease, border-color 0.24s ease;
}
.brand-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
  border-color: var(--line);
}
.brand-card__logo {
  height: 84px;
  display: grid;
  place-items: center;
}
.brand-card__logo img {
  max-height: 84px;
  max-width: 100%;
  width: auto;
  object-fit: contain;
}
.brand-card__initial {
  width: 56px; height: 56px;
  border-radius: 50%;
  background: var(--surface-low);
  color: var(--brand);
  display: grid; place-items: center;
  font-size: 22px; font-weight: 700;
}
.brand-card__note {
  font-size: 12px;
  color: var(--muted);
  margin: 0;
  line-height: 1.55;
}

/* ---------- 免费测量屋顶表单 ---------- */

.measure {
  display: grid;
  grid-template-columns: 1fr 1.25fr;
  gap: 36px;
  margin: 40px 0 40px;
  padding: 34px 34px 32px;
  border-radius: calc(var(--radius) + 4px);
  background:
    radial-gradient(130% 100% at 0% 100%, rgba(19, 127, 193, 0.1) 0%, transparent 55%),
    linear-gradient(150deg, #0a3152 0%, #124f7d 58%, #137fc1 100%);
  color: #fff;
  position: relative;
  overflow: hidden;
}
.measure::after {
  content: "";
  position: absolute;
  right: -60px; top: -60px;
  width: 240px; height: 240px;
  border-radius: 50%;
  background: rgba(255, 236, 180, 0.1);
  pointer-events: none;
}

.measure__intro { position: relative; z-index: 2; }
.measure__intro h2 {
  margin: 10px 0 14px;
  font-size: clamp(24px, 2.6vw, 31px);
  letter-spacing: -0.02em;
  color: #fff;
}
.measure__intro p {
  margin: 0 0 22px;
  font-size: 14.5px;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.8);
}
.measure__perks {
  list-style: none;
  margin: 0;
  padding: 0;
}
.measure__perks li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 9px 0;
  font-size: 14px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.9);
}
.measure__perks span {
  display: grid;
  place-items: center;
  width: 20px; height: 20px;
  margin-top: 2px;
  border-radius: 50%;
  background: var(--accent);
  color: #0a3152;
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
}

.measure__form {
  position: relative;
  z-index: 2;
  padding: 26px 26px 22px;
  border-radius: var(--radius);
  background: #fff;
  color: var(--ink);
}
.measure__brand { border: none; padding: 0; margin: 0 0 18px; }
.measure__brand legend {
  padding: 0;
  margin-bottom: 10px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ink);
}
.measure__brands {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}
.measure__brand-opt {
  position: relative;
  display: block;
  cursor: pointer;
}
.measure__brand-opt input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}
.measure__brand-opt span {
  display: grid;
  place-items: center;
  min-height: 42px;
  padding: 8px 6px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface);
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  text-align: center;
  transition: all 0.2s ease;
}
.measure__brand-opt:hover span { border-color: var(--brand); color: var(--brand); }
.measure__brand-opt input:checked + span {
  border-color: var(--brand);
  background: var(--brand);
  color: #fff;
}
.measure__brand-opt input:focus-visible + span {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.measure__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.measure__field { margin-bottom: 15px; }
.measure__field label {
  display: block;
  margin-bottom: 7px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ink);
}
.measure__field label em {
  font-style: normal;
  color: #d1462f;
}
.measure__field input,
.measure__field select,
.measure__field textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: #fff;
  font-size: 14.5px;
  font-family: inherit;
  color: var(--ink);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.measure__field textarea { resize: vertical; min-height: 62px; }
.measure__field input:focus,
.measure__field select:focus,
.measure__field textarea:focus {
  outline: none;
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(19, 127, 193, 0.12);
}
.measure__field select:disabled {
  background: var(--surface-low);
  color: var(--muted);
  cursor: not-allowed;
}
.measure__field.is-error input,
.measure__field.is-error select { border-color: #d1462f; }
.measure__error {
  display: block;
  margin-top: 5px;
  font-size: 12.5px;
  color: #d1462f;
}

.measure__location {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
}
.measure__location select { padding: 10px 8px; font-size: 13.5px; }

.measure__submit { margin-top: 6px; }
.measure__privacy {
  margin: 12px 0 0;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--muted);
  text-align: center;
}
.measure__feedback { margin-top: 12px; }
.measure__feedback .form-success {
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  background: rgba(23, 145, 90, 0.09);
  color: #178257;
  font-size: 13.5px;
  line-height: 1.6;
}
.measure__feedback .form-error {
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  background: rgba(209, 70, 47, 0.09);
  color: #c2402c;
  font-size: 13.5px;
  line-height: 1.6;
}

/* ---------- 运维保障体系 ---------- */

.guarantee-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.guarantee-card {
  padding: 24px 24px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  position: relative;
  overflow: hidden;
  transition: transform 0.24s ease, box-shadow 0.24s ease, border-color 0.24s ease;
}
.guarantee-card::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--brand), var(--accent));
  opacity: 0;
  transition: opacity 0.24s ease;
}
.guarantee-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-soft);
  border-color: transparent;
}
.guarantee-card:hover::before { opacity: 1; }
.guarantee-card__icon {
  display: grid;
  place-items: center;
  width: 42px; height: 42px;
  margin-bottom: 14px;
  border-radius: 12px;
  background: linear-gradient(140deg, rgba(19, 127, 193, 0.1), rgba(87, 183, 234, 0.14));
  color: var(--brand);
}
.guarantee-card h4 {
  margin: 0 0 8px;
  font-size: 16.5px;
  letter-spacing: -0.01em;
}
.guarantee-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 合作商墙 ---------- */

.partner-wall {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.partner-chip {
  display: inline-flex;
  align-items: center;
  padding: 9px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  font-size: 13.5px;
  font-weight: 500;
  color: var(--ink);
  transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
}
.partner-chip::before {
  content: "";
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--accent);
  margin-right: 9px;
  flex-shrink: 0;
}
.partner-chip:hover {
  border-color: var(--brand);
  color: var(--brand);
  background: rgba(19, 127, 193, 0.04);
}

/* ---------- 运维报价区块 ---------- */

.pricing {
  margin: 44px 0 36px;
  padding: 34px 32px 32px;
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 4px);
  background:
    radial-gradient(120% 90% at 100% 0%, rgba(87, 183, 234, 0.08) 0%, transparent 58%),
    linear-gradient(180deg, #fbfdff 0%, #f5f9fc 100%);
}
.pricing__head { position: relative; margin-bottom: 16px; }
.pricing__head h2 {
  margin: 8px 0 0;
  font-size: clamp(23px, 2.4vw, 29px);
  letter-spacing: -0.02em;
}
.pricing__stamp {
  position: absolute;
  right: 0; top: 6px;
  padding: 5px 12px;
  border-radius: 999px;
  background: rgba(19, 127, 193, 0.09);
  color: var(--brand);
  font-size: 12px;
  font-weight: 600;
}
.pricing__intro {
  margin: 0 0 26px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--muted);
  max-width: 78ch;
}

.pricing__block { margin-bottom: 30px; }
.pricing__block:last-of-type { margin-bottom: 22px; }
.pricing__block-title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 16px;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.01em;
}
.pricing__block-title em {
  font-style: normal;
  font-size: 12.5px;
  font-weight: 500;
  color: var(--muted);
  padding: 3px 10px;
  border-radius: 999px;
  background: rgba(10, 49, 82, 0.05);
}
.pricing__block-index {
  display: inline-grid;
  place-items: center;
  width: 26px; height: 26px;
  border-radius: 8px;
  background: var(--brand);
  color: #fff;
  font-family: var(--font-accent);
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
}

/* 全包报价双卡 */
.price-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.price-card {
  position: relative;
  padding: 24px 24px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  overflow: hidden;
}
.price-card.is-featured {
  border-color: var(--brand);
  box-shadow: 0 10px 30px rgba(19, 127, 193, 0.14);
}
.price-card.is-featured::after {
  content: "推荐";
  position: absolute;
  top: 14px; right: -30px;
  padding: 4px 34px;
  background: var(--brand);
  color: #fff;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  transform: rotate(38deg);
}
.price-card__scale {
  display: block;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 10px;
}
.price-card__amount {
  display: flex;
  align-items: baseline;
  gap: 8px;
  flex-wrap: wrap;
}
.price-card__amount strong {
  font-family: var(--font-accent);
  font-size: clamp(30px, 3.4vw, 40px);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--brand);
}
.price-card__amount em {
  font-style: normal;
  font-size: 14px;
  color: var(--muted);
}
.price-card__note {
  margin: 12px 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}

/* 单项服务价格表 */
.price-services {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  gap: 16px;
}
.price-service {
  padding: 22px 22px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}
.price-service__head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-bottom: 14px;
  margin-bottom: 6px;
  border-bottom: 1px solid var(--line);
}
.price-service__icon {
  display: grid;
  place-items: center;
  width: 34px; height: 34px;
  border-radius: 10px;
  background: rgba(19, 127, 193, 0.09);
  color: var(--brand);
  flex-shrink: 0;
}
.price-service__head h4 {
  margin: 0;
  font-size: 15.5px;
  letter-spacing: -0.01em;
}
.price-rows {
  list-style: none;
  margin: 0;
  padding: 0;
}
.price-row {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 0;
  border-bottom: 1px dashed rgba(10, 49, 82, 0.09);
}
.price-row:last-child { border-bottom: none; }
.price-row__item {
  font-size: 13.5px;
  color: var(--ink);
  flex-shrink: 0;
}
.price-row__dash {
  flex: 1;
  min-width: 12px;
  height: 1px;
  border-bottom: 1px dotted rgba(10, 49, 82, 0.22);
  transform: translateY(-3px);
}
.price-row__price {
  font-size: 13.5px;
  font-weight: 700;
  color: var(--brand);
  text-align: right;
  flex-shrink: 0;
  font-variant-numeric: tabular-nums;
}

/* 影响因素 */
.factor-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 12px;
}
.factor-card {
  padding: 18px 18px 16px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.72);
}
.factor-card h5 {
  margin: 0 0 7px;
  font-size: 14.5px;
  color: var(--brand);
  display: flex;
  align-items: center;
  gap: 7px;
}
.factor-card h5::before {
  content: "";
  width: 4px; height: 15px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--brand), var(--accent));
  flex-shrink: 0;
}
.factor-card p {
  margin: 0;
  font-size: 13px;
  line-height: 1.65;
  color: var(--muted);
}

.pricing__disclaimer {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  margin: 22px 0 0;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  background: rgba(10, 49, 82, 0.035);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--muted);
}
.pricing__disclaimer svg { flex-shrink: 0; margin-top: 2px; color: var(--brand); }

/* ---------- 案例图集与视频 ---------- */

.case-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 14px;
  margin-bottom: 30px;
}
.case-gallery img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  cursor: zoom-in;
  transition: transform 0.24s ease;
}
.case-gallery img:hover { transform: scale(1.02); }

.case-video {
  margin-bottom: 30px;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--brand-strong);
  border: 1px solid var(--line);
}
.case-video video { display: block; width: 100%; max-height: 460px; background: #000; }

/* ---------- CTA 区块 ---------- */

.cta-band { background: linear-gradient(135deg, var(--brand-strong), #124a70); color: #fff; padding: 62px 0; }
.cta-band__inner { display: flex; align-items: center; justify-content: space-between; gap: 34px; flex-wrap: wrap; }
.cta-band h2 { font-size: clamp(23px, 3vw, 33px); margin-bottom: 10px; }
.cta-band p { color: rgba(255, 255, 255, 0.76); margin: 0; max-width: 620px; }
.cta-band__actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* ---------- 页脚 ---------- */

.site-footer { background: var(--brand-strong); color: rgba(255, 255, 255, 0.72); padding: 56px 0 0; font-size: 14px; }
.site-footer a:hover { color: var(--accent); }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.3fr; gap: 38px; padding-bottom: 40px; }
.footer-col h4 { color: #fff; font-size: 15.5px; margin-bottom: 16px; }
.footer-brand__head { display: flex; align-items: center; gap: 12px; }
.footer-brand__head h4 { margin-bottom: 0; }
.footer-brand__logo {
  width: 40px; height: 40px; flex-shrink: 0;
  border-radius: 50%; overflow: hidden;
  background: #fff;
  box-shadow: 0 1px 6px rgba(0, 0, 0, .22);
  display: grid; place-items: center;
}
.footer-brand__logo img { width: 100%; height: 100%; object-fit: contain; display: block; }
.footer-col ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 9px; }
.footer-brand p { margin: 14px 0 18px; font-size: 13.5px; line-height: 1.8; max-width: 330px; }
.footer-contact { list-style: none; margin: 0; padding: 0; }
.footer-contact li { display: flex; gap: 9px; margin-bottom: 9px; align-items: flex-start; }
.footer-contact strong { color: rgba(255, 255, 255, 0.55); font-weight: 500; margin-right: 4px; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding: 20px 0;
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  font-size: 13px; color: rgba(255, 255, 255, 0.55);
}

/* ---------- 服务流程（八阶段交互） ---------- */

.workflow { margin-top: 8px; }

.workflow__rail { position: relative; margin-bottom: 38px; }
.workflow__track {
  position: absolute;
  left: 0; right: 0; top: 21px;
  height: 2px;
  background: var(--line);
  border-radius: 2px;
}
.workflow__track span {
  display: block;
  height: 100%;
  width: 0;
  background: var(--brand);
  border-radius: 2px;
  transition: width 0.35s ease;
}
.workflow__nodes {
  position: relative;
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 8px;
}
.workflow__node {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  position: relative;
}
.workflow__node-index {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: #fff;
  border: 2px solid var(--line);
  color: var(--muted);
  display: grid; place-items: center;
  font-family: var(--font-accent);
  font-size: 15px; font-weight: 700;
  transition: all 0.24s ease;
  position: relative;
  z-index: 1;
}
.workflow__node:hover .workflow__node-index { border-color: var(--brand); color: var(--brand); }
.workflow__node.is-complete .workflow__node-index {
  background: var(--brand-container);
  border-color: var(--brand-container);
  color: #fff;
}
.workflow__node.is-active .workflow__node-index {
  background: var(--brand);
  border-color: var(--brand);
  color: #fff;
  transform: scale(1.12);
  box-shadow: 0 0 0 5px rgba(19, 127, 193, 0.14);
}
.workflow__node-label { text-align: center; line-height: 1.35; }
.workflow__node-label small {
  display: block;
  font-family: var(--font-accent);
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--muted);
}
.workflow__node-label strong { display: block; font-size: 14.5px; color: var(--ink); margin-top: 2px; }
.workflow__node.is-active .workflow__node-label strong { color: var(--brand); }
.workflow__node.is-active .workflow__node-label small { color: var(--brand); }

.workflow__detail {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  overflow: hidden;
}
.workflow__panel { display: none; }
.workflow__panel.is-active { display: grid; grid-template-columns: 0.9fr 1.1fr; animation: wfFade 0.32s ease; }
@keyframes wfFade { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

.workflow__intro {
  padding: 38px 34px;
  background: linear-gradient(140deg, var(--brand-strong), #124a70);
  color: #fff;
}
.workflow__intro-index {
  display: inline-block;
  font-family: var(--font-accent);
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--accent);
  margin-bottom: 10px;
}
.workflow__intro small {
  display: block;
  font-family: var(--font-accent);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: rgba(255, 255, 255, 0.55);
  text-transform: uppercase;
}
.workflow__intro h2 { font-size: 28px; margin: 6px 0 14px; }
.workflow__intro p { color: rgba(255, 255, 255, 0.78); margin: 0; font-size: 14.5px; line-height: 1.8; }

.workflow__items {
  padding: 30px 32px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  align-content: center;
}
.workflow__item {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 16px 18px;
  background: var(--surface);
}
.workflow__item-index {
  display: block;
  font-family: var(--font-accent);
  font-size: 12px;
  color: var(--brand);
  margin-bottom: 5px;
}
.workflow__item strong { display: block; font-size: 15px; margin-bottom: 5px; }
.workflow__item p { font-size: 12.5px; color: var(--muted); margin: 0; line-height: 1.65; }
.workflow__hint { text-align: center; font-size: 12.5px; color: var(--muted); margin-top: 18px; }

/* ---------- 浮动客服 ---------- */

.floating-service {
  position: fixed;
  right: 0;
  bottom: 120px;
  z-index: 65;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 10px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s;
}
.floating-service.is-visible { opacity: 1; visibility: visible; }

/* 桌面端二维码卡片：从工具条上方向下滑出，避免遮挡按钮 */
.fs-qr-trigger {
  order: 1;
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 11px 16px;
  border: 1px solid var(--line);
  border-right: none;
  border-radius: 12px 0 0 12px;
  background: #fff;
  color: var(--brand);
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  box-shadow: -8px 0 26px rgba(10, 49, 82, 0.13);
  transition: background 0.2s ease, color 0.2s ease;
}
.fs-qr-trigger:hover { background: var(--brand); color: #fff; }

.fs-qr-card {
  order: 0;
  position: absolute;
  right: 0;
  bottom: calc(100% + 10px);
  width: 210px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: -12px 0 34px rgba(10, 49, 82, 0.16);
  padding: 16px;
  transform: translateY(10px);
  opacity: 0;
  visibility: hidden;
  transition: transform 0.32s ease, opacity 0.32s ease, visibility 0.32s;
}
.fs-qr-card.is-open { transform: translateY(0); opacity: 1; visibility: visible; }
.fs-qr-card__head { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-bottom: 12px; }
.fs-qr-card__head strong { font-size: 13.5px; color: var(--brand); }
.fs-qr-card__close {
  border: none; background: none; cursor: pointer; color: var(--muted);
  width: 24px; height: 24px; display: grid; place-items: center; border-radius: 5px;
}
.fs-qr-card__close:hover { background: var(--surface); color: var(--ink); }
.fs-qr-card__body { display: grid; place-items: center; }
.fs-qr-card__body img { width: 100%; max-width: 168px; border: 1px solid var(--line); border-radius: 10px; padding: 5px; background: #fff; }
.fs-qr-card__hint { text-align: center; font-size: 12px; color: var(--muted); margin: 12px 0 0; }
.fs-qr-card__empty { text-align: center; padding: 14px 6px; }
.fs-qr-card__empty-icon { color: var(--line); display: block; margin-bottom: 8px; }
.fs-qr-card__empty p { font-size: 13px; color: var(--muted); margin: 0 0 4px; }
.fs-qr-card__empty small { font-size: 11.5px; color: var(--muted); opacity: 0.75; line-height: 1.5; display: block; }

/* 右侧工具条 */
.fs-actions { order: 2; display: flex; flex-direction: column; gap: 1px; }
.fs-action {
  position: relative;
  width: 46px; height: 46px;
  border: 1px solid var(--line);
  border-right: none;
  background: #fff;
  color: var(--brand);
  display: grid; place-items: center;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
}
.fs-action:first-child { border-radius: 12px 0 0 0; }
.fs-action:last-child { border-radius: 0 0 0 12px; }
.fs-action:hover { background: var(--brand); color: #fff; }
.fs-action--red { color: var(--energy); }
.fs-action--red:hover { background: var(--energy); color: #fff; }
.fs-action__tip {
  position: absolute;
  right: calc(100% + 10px);
  top: 50%;
  transform: translateY(-50%);
  background: var(--brand-strong);
  color: #fff;
  font-size: 12px;
  padding: 6px 11px;
  border-radius: 6px;
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, visibility 0.2s;
  pointer-events: none;
}
.fs-action:hover .fs-action__tip { opacity: 1; visibility: visible; }

/* 移动端悬浮按钮 */
.fs-mobile-btn { display: none; }

/* 二维码弹窗 */
.fs-modal { position: fixed; inset: 0; z-index: 90; display: grid; place-items: center; padding: 20px; }
.fs-modal[hidden] { display: none; }
.fs-modal__mask { position: absolute; inset: 0; background: rgba(10, 32, 52, 0.72); }
.fs-modal__card {
  position: relative;
  background: #fff;
  border-radius: 18px;
  padding: 26px;
  text-align: center;
  max-width: 340px;
  width: 100%;
  box-shadow: 0 30px 70px rgba(4, 26, 45, 0.32);
}
.fs-modal__card img { width: 100%; border: 1px solid var(--line); border-radius: 12px; padding: 8px; background: #fff; }
.fs-modal__card p { margin: 14px 0 0; font-size: 14px; color: var(--muted); }
.fs-modal__close {
  position: absolute;
  top: 12px; right: 12px;
  width: 32px; height: 32px;
  border: none; border-radius: 50%;
  background: var(--surface); color: var(--muted);
  cursor: pointer; display: grid; place-items: center;
}
.fs-modal__close:hover { background: var(--surface-high); color: var(--ink); }

/* ---------- 资质证书滚动 ---------- */

.cert-rail__nav { display: flex; gap: 8px; flex-shrink: 0; }
.cert-rail__btn {
  width: 40px; height: 40px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: #fff;
  color: var(--brand);
  cursor: pointer;
  display: grid; place-items: center;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}
.cert-rail__btn:hover { background: var(--brand); border-color: var(--brand); color: #fff; }

.cert-rail {
  display: flex;
  gap: 18px;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  scroll-behavior: smooth;
  padding: 4px 4px 18px;
  /* 隐藏滚动条但保留滚动能力 */
  scrollbar-width: none;
  -ms-overflow-style: none;
  cursor: grab;
}
.cert-rail::-webkit-scrollbar { display: none; }
.cert-rail:focus-visible { outline: 2px solid var(--brand); outline-offset: 4px; border-radius: var(--radius); }
.cert-rail.is-dragging { cursor: grabbing; }

/* 循环克隆卡片：仅用于视觉接续，不可交互 */
.cert-card--clone { pointer-events: none; user-select: none; }

/* 自动滚动期间关闭吸附与平滑，避免 rAF 逐帧赋值被浏览器二次动画 */
.cert-rail.is-auto {
  scroll-snap-type: none;
  scroll-behavior: auto;
}

/* 播放 / 暂停按钮 */
.cert-rail__btn--play {
  position: relative;
  color: var(--brand);
}
.cert-rail__btn--play::after {
  content: "";
  position: absolute;
  inset: 0;
  margin: auto;
  width: 0; height: 0;
  border-left: 11px solid currentColor;
  border-top: 7px solid transparent;
  border-bottom: 7px solid transparent;
  transform: translateX(2px);
}
.cert-rail__btn--play.is-paused::after {
  border: none;
  width: 11px; height: 13px;
  transform: none;
  background: linear-gradient(
    to right,
    currentColor 0 3.5px,
    transparent 3.5px 7.5px,
    currentColor 7.5px 11px
  );
}
.cert-rail__btn--play:hover::after { border-left-color: #fff; }
.cert-rail__btn--play.is-paused:hover::after { background: linear-gradient(to right, #fff 0 3.5px, transparent 3.5px 7.5px, #fff 7.5px 11px); }

.cert-card {
  flex: 0 0 auto;
  width: 232px;
  margin: 0;
  scroll-snap-align: start;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.26s ease, box-shadow 0.26s ease;
}
.cert-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-soft); }

.cert-card__frame {
  aspect-ratio: 3 / 4;
  background: var(--surface-low);
  display: grid;
  place-items: center;
  padding: 10px;
  overflow: hidden;
}
.cert-card__frame img {
  max-width: 100%;
  max-height: 100%;
  width: auto; height: auto;
  object-fit: contain;
  border-radius: 4px;
}

.cert-card__caption {
  padding: 13px 15px 15px;
  border-top: 1px solid var(--line);
}
.cert-card__caption strong {
  display: block;
  font-size: 14px;
  line-height: 1.45;
  margin-bottom: 3px;
}
.cert-card__caption span {
  display: block;
  font-size: 12px;
  color: var(--muted);
  line-height: 1.5;
}

.cert-rail__hint {
  text-align: center;
  font-size: 12.5px;
  color: var(--muted);
  margin-top: 6px;
}

/* ---------- 工具类 ---------- */

.pagination { display: flex; justify-content: center; align-items: center; gap: 8px; margin-top: 44px; flex-wrap: wrap; }
.pagination a, .pagination span {
  min-width: 40px; height: 40px; padding: 0 13px;
  display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--line); border-radius: var(--radius-sm);
  font-size: 14.5px; background: #fff;
}
.pagination a:hover { border-color: var(--brand); color: var(--brand); }
.pagination .is-current { background: var(--brand); border-color: var(--brand); color: #fff; font-weight: 600; }
.pagination .is-disabled { opacity: 0.4; pointer-events: none; }

.filter-bar { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 30px; }
.filter-bar a {
  padding: 8px 18px; border-radius: 999px;
  border: 1px solid var(--line); background: #fff;
  font-size: 14px; color: var(--ink-soft);
  transition: all 0.18s ease;
}
.filter-bar a:hover { border-color: var(--brand); color: var(--brand); }
.filter-bar a.is-active { background: var(--brand); border-color: var(--brand); color: #fff; font-weight: 600; }

.tag-row { display: flex; flex-wrap: wrap; gap: 8px; }
.tag {
  padding: 4px 12px; border-radius: 999px;
  background: var(--surface-low); color: var(--brand-strong);
  font-size: 12.5px; font-weight: 500;
}

.empty-state { text-align: center; padding: 70px 20px; color: var(--muted); }
.empty-state h3 { font-size: 19px; color: var(--ink); }

/* ============================================================
   响应式：平板
   ============================================================ */
@media (max-width: 1180px) {
  /* 中等屏幕优先保证导航一行显示 */
  .header-phone { display: none; }
  .main-nav a, .main-nav .nav-link { padding: 10px 10px; font-size: 14.5px; }
}

@media (max-width: 1024px) {
  .assessment__grid { grid-template-columns: 1fr; gap: 36px; }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
  .content-grid { grid-template-columns: 1fr; gap: 36px; }
  .sidebar { position: static; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
}

/* ============================================================
   响应式：手机版
   ============================================================ */
@media (max-width: 860px) {
  :root { --header-h: 64px; }

  body { font-size: 15.5px; }
  .shell { padding: 0 18px; }
  .section { padding: 54px 0; }
  .section--tight { padding: 42px 0; }
  .section-heading { margin-bottom: 30px; }

  /* 头部：汉堡菜单 */
  .nav-toggle { display: grid; }
  .header-phone { display: none; }
  .brand__name { font-size: 15.5px; }
  .brand__mark { width: 36px; height: 36px; }

  .main-nav {
    position: fixed;
    top: var(--header-h); left: 0; right: 0;
    background: #fff;
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    align-items: stretch;
    padding: 12px 18px 22px;
    gap: 2px;
    box-shadow: var(--shadow-card);
    max-height: calc(100vh - var(--header-h));
    overflow-y: auto;
    transform: translateY(-8px);
    opacity: 0; visibility: hidden;
    transition: opacity 0.22s ease, transform 0.22s ease, visibility 0.22s;
  }
  .main-nav.is-open { opacity: 1; visibility: visible; transform: translateY(0); }
  .main-nav a, .main-nav .nav-link { padding: 13px 12px; font-size: 16px; border-radius: var(--radius-sm); }
  .sub-nav {
    position: static; opacity: 1; visibility: visible; transform: none;
    box-shadow: none; border: none; border-left: 2px solid var(--line);
    border-radius: 0; margin: 2px 0 6px 12px; padding: 2px 0 2px 8px;
    display: none;
  }
  .has-child.is-open .sub-nav { display: block; }
  .header-actions .btn { display: none; }

  /* 首屏 */
  .hero { min-height: 480px; }
  .hero__content { padding: 62px 0 78px; }
  .hero__actions { flex-direction: column; align-items: stretch; }
  .hero__actions .btn { width: 100%; }
  .hero__controls { right: 18px; bottom: 22px; }

  /* 数据条 */
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 22px 14px; }
  .stats-strip { padding: 30px 0; }

  /* 计算器 */
  .calculator { padding: 20px; }
  .calculator__row { grid-template-columns: 1fr; }
  .roof-types { grid-template-columns: 1fr 1fr; }

  /* 网格 */
  .grid--3, .grid--4, .grid--2 { grid-template-columns: 1fr; }
  .heading-row { flex-direction: column; align-items: flex-start; gap: 14px; }

  /* 新闻 */
  .news-card { gap: 14px; }
  .news-card__date { width: 62px; }

  /* 表单 */
  .form-row { grid-template-columns: 1fr; }

  /* CTA */
  .cta-band__inner { flex-direction: column; align-items: flex-start; }
  .cta-band__actions { width: 100%; flex-direction: column; }
  .cta-band__actions .btn { width: 100%; }

  /* 页脚 */
  .footer-grid { grid-template-columns: 1fr; gap: 26px; }
  .footer-bottom { flex-direction: column; gap: 8px; }

  .page-hero { padding: 48px 0; }

  /* 服务流程：移动端改为纵向时间轴 */
  .workflow__nodes { grid-template-columns: repeat(4, 1fr); gap: 12px 6px; }
  .workflow__track { display: none; }
  .workflow__node-index { width: 38px; height: 38px; font-size: 13px; }
  .workflow__node-label small { font-size: 9px; }
  .workflow__node-label strong { font-size: 13px; }
  .workflow__panel.is-active { grid-template-columns: 1fr; }
  .workflow__intro { padding: 26px 22px; }
  .workflow__intro h2 { font-size: 23px; }
  .workflow__items { padding: 20px 18px; grid-template-columns: 1fr; gap: 12px; }

  /* 浮动客服：移动端改为右下角圆角按钮 */
  .floating-service { bottom: 66px; right: 14px; align-items: flex-end; }
  .fs-qr-trigger { display: none; }
  .fs-qr-card {
    right: 0;
    bottom: calc(100% + 10px);
    width: 208px;
    transform: translateY(10px);
  }
  .fs-qr-card.is-open { transform: translateY(0); }
  .fs-actions { display: none; }
  .fs-mobile-btn {
    order: 2;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    min-height: 44px;
    padding: 10px 16px;
    border-radius: 999px;
    border: 1px solid var(--line);
    background: #fff;
    color: var(--brand);
    font-size: 13.5px;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 10px 28px rgba(10, 49, 82, 0.16);
  }
}

/* 手机端优化：点击目标不小于 44px */
@media (max-width: 860px) {
  .main-nav a, .main-nav .nav-link { min-height: 46px; }
  .btn { min-height: 46px; }
  .filter-bar a { padding: 10px 16px; }

  /* 运维保障体系 */
  .guarantee-grid { grid-template-columns: 1fr; gap: 12px; }
  .guarantee-card { padding: 20px 20px 18px; }
  .guarantee-card__icon { width: 38px; height: 38px; margin-bottom: 11px; }

  /* 免费测量屋顶表单 */
  .measure {
    grid-template-columns: 1fr;
    gap: 24px;
    margin: 28px 0 30px;
    padding: 22px 18px 20px;
    border-radius: var(--radius);
  }
  .measure__intro h2 { font-size: 23px; margin: 8px 0 12px; }
  .measure__intro p { font-size: 13.5px; margin-bottom: 16px; }
  .measure__perks li { font-size: 13.5px; padding: 7px 0; }
  .measure__form { padding: 20px 17px 18px; }
  .measure__brands { grid-template-columns: repeat(2, 1fr); }
  .measure__row { grid-template-columns: 1fr; gap: 0; }
  .measure__location { grid-template-columns: repeat(2, 1fr); gap: 8px; }
  .measure__location select:last-child { grid-column: 1 / -1; }
  .measure__field { margin-bottom: 13px; }

  /* 运维报价 */
  .pricing {
    margin: 32px 0 28px;
    padding: 24px 18px 22px;
    border-radius: var(--radius);
  }
  .pricing__head { margin-bottom: 13px; }
  .pricing__stamp {
    position: static;
    display: inline-block;
    margin-top: 10px;
  }
  .pricing__intro { font-size: 13.5px; margin-bottom: 22px; }
  .pricing__block { margin-bottom: 24px; }
  .pricing__block-title {
    font-size: 15.5px;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 13px;
  }
  .pricing__block-title em { font-size: 11.5px; padding: 2px 8px; }
  .price-cards { grid-template-columns: 1fr; gap: 12px; }
  .price-card { padding: 20px 20px 18px; }
  .price-card__amount strong { font-size: 32px; }
  .price-services { grid-template-columns: 1fr; gap: 12px; }
  .price-service { padding: 19px 18px 13px; }
  .price-row { flex-wrap: wrap; gap: 4px 8px; padding: 10px 0; }
  .price-row__item { flex: 1 1 100%; }
  .price-row__dash { display: none; }
  .price-row__price { flex: 1 1 100%; text-align: left; }
  .factor-grid { grid-template-columns: 1fr; gap: 10px; }
  .pricing__disclaimer { font-size: 12px; padding: 12px 13px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}

/* 打印 */
@media print {
  .site-header, .site-footer, .cta-band, .calculator { display: none; }
  body { color: #000; }
}

/* ============================================================
   关键词落地页（/foshan 及区县页）专用组件
   ============================================================ */

/* FAQ 折叠列表 —— FAQPage 结构化数据与页面可见内容一致 */
.faq-list {
  display: grid;
  gap: 10px;
  margin-bottom: 38px;
}

.faq-item {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--paper);
  overflow: hidden;
}

.faq-item summary {
  cursor: pointer;
  list-style: none;
  padding: 16px 46px 16px 18px;
  font-weight: 600;
  color: var(--ink);
  position: relative;
  transition: background 0.2s ease;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "";
  position: absolute;
  right: 20px;
  top: 50%;
  width: 8px;
  height: 8px;
  border-right: 2px solid var(--brand);
  border-bottom: 2px solid var(--brand);
  transform: translateY(-70%) rotate(45deg);
  transition: transform 0.2s ease;
}

.faq-item[open] summary::after {
  transform: translateY(-30%) rotate(-135deg);
}

.faq-item summary:hover {
  background: var(--surface);
}

.faq-item__body {
  padding: 0 18px 18px;
  color: var(--ink-soft);
  line-height: 1.8;
}

.faq-item__body p {
  margin: 0;
}

/* 内部链接云（区县互链，权重传递的关键） */
.link-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 38px;
}

.link-cloud a {
  display: inline-block;
  padding: 9px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--paper);
  color: var(--ink);
  font-size: 14px;
  text-decoration: none;
  transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
}

.link-cloud a:hover {
  border-color: var(--brand);
  color: var(--brand);
  background: var(--surface);
}

.link-cloud--lg {
  gap: 12px;
  justify-content: center;
}

.link-cloud--lg a {
  padding: 12px 22px;
  font-size: 15px;
  font-weight: 500;
}

/* 落地页统计条 */
.landing-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 34px;
}

@media (max-width: 860px) {
  .landing-stats {
    grid-template-columns: repeat(2, 1fr);
  }
  .faq-item summary {
    padding: 14px 42px 14px 15px;
  }
  .link-cloud--lg a {
    padding: 10px 16px;
    font-size: 14px;
  }
}