/* =========================================================
   上海盛沃律师事务所 · 合同纠纷法律咨询专题落地页
   主色 #A61C2E 深红 · 点缀 #C9A063 金色
   ========================================================= */

:root {
  --red: #A61C2E;
  --red-dark: #7E1220;
  --red-deeper: #5C0D18;
  --gold: #C9A063;
  --gold-light: #E3C894;
  --ink: #2B2320;
  --ink-2: #5A4F4A;
  --ink-3: #8A7E78;
  --bg-light: #FAF7F3;
  --bg-gray: #F3EEE8;
  --white: #FFFFFF;
  --line: #E8DFD4;
  --header-h: 72px;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(92, 13, 24, .10);
  --shadow-lg: 0 20px 50px rgba(92, 13, 24, .16);
  --font-serif: "Noto Serif SC", "Songti SC", SimSun, serif;
  --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 12px); }

body {
  font-family: var(--font-sans);
  color: var(--ink);
  background: var(--white);
  line-height: 1.8;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  padding-bottom: 62px; /* 为移动端固定拨号栏预留空间 */
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

.section { padding: 88px 0; }

.section-head { text-align: center; max-width: 780px; margin: 0 auto 56px; }
.section-kicker {
  display: inline-block;
  font-size: 13px;
  letter-spacing: .35em;
  color: var(--gold);
  font-weight: 700;
  margin-bottom: 14px;
  padding: 6px 18px;
  border: 1px solid var(--gold);
  border-radius: 40px;
  text-transform: uppercase;
}
.section-head h2 {
  font-family: var(--font-serif);
  font-size: clamp(26px, 3.4vw, 40px);
  font-weight: 700;
  line-height: 1.45;
  color: var(--ink);
  position: relative;
  padding-bottom: 18px;
}
.section-head h2::after {
  content: "";
  position: absolute;
  left: 50%; bottom: 0;
  transform: translateX(-50%);
  width: 64px; height: 3px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--gold), var(--red));
}
.section-sub { margin-top: 18px; color: var(--ink-2); font-size: 16px; }
.section-tip {
  margin-top: 34px; text-align: center;
  color: var(--ink-3); font-size: 14px;
  padding: 14px 20px;
  background: var(--bg-light);
  border-left: 3px solid var(--gold);
  border-radius: 6px;
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 700;
  border-radius: var(--radius);
  transition: all .3s ease;
  letter-spacing: .04em;
  text-align: center;
}
.btn-lg { padding: 16px 34px; font-size: 16px; }
.btn-md { padding: 13px 26px; font-size: 15px; }
.btn-primary { background: var(--red); color: #fff; box-shadow: 0 8px 24px rgba(166, 28, 46, .32); }
.btn-primary:hover { background: var(--red-dark); transform: translateY(-2px); }
.btn-gold {
  background: linear-gradient(135deg, #D9B77E, var(--gold) 45%, #B98A4E);
  color: var(--ink);
  box-shadow: 0 8px 24px rgba(201, 160, 99, .42);
}
.btn-gold:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(201, 160, 99, .55); }
.btn-ghost { border: 1.5px solid rgba(255, 255, 255, .75); color: #fff; background: rgba(255, 255, 255, .08); }
.btn-ghost:hover { background: rgba(255, 255, 255, .18); transform: translateY(-2px); }

/* =========================================================
   顶部导航
   ========================================================= */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-h);
  z-index: 100;
  background: rgba(92, 13, 24, .92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(201, 160, 99, .25);
  transition: background .3s ease;
}
.header-inner { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 20px; }

.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark {
  width: 44px; height: 44px;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--gold-light), var(--gold));
  color: #fff; font-family: var(--font-serif);
  font-size: 22px; font-weight: 900;
  border-radius: 10px;
  box-shadow: 0 4px 12px rgba(201, 160, 99, .4);
}
.brand-text { display: flex; flex-direction: column; line-height: 1.25; }
.brand-text strong { color: #fff; font-family: var(--font-serif); font-size: 17px; }
.brand-text em { color: rgba(255, 255, 255, .55); font-size: 10px; letter-spacing: .18em; font-style: normal; }

.main-nav { display: flex; align-items: center; gap: 26px; }
.main-nav a { color: rgba(255, 255, 255, .85); font-size: 14.5px; font-weight: 500; transition: color .25s; white-space: nowrap; }
.main-nav a:hover, .main-nav a.active { color: var(--gold-light); }
.main-nav .nav-tel {
  color: var(--gold-light);
  font-weight: 700;
  padding: 8px 16px;
  border: 1px solid rgba(201, 160, 99, .5);
  border-radius: 30px;
}
.main-nav .nav-tel:hover { background: rgba(201, 160, 99, .12); }

/* 汉堡按钮 */
.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px; height: 42px;
  padding: 10px;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, .25);
}
.menu-toggle span {
  display: block; height: 2px; width: 100%;
  background: #fff; border-radius: 2px;
  transition: transform .3s, opacity .3s;
}
.menu-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* =========================================================
   Hero 首屏
   ========================================================= */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: calc(var(--header-h) + 40px) 0 90px;
  background:
    radial-gradient(1100px 500px at 85% -10%, rgba(201, 160, 99, .22), transparent 60%),
    linear-gradient(150deg, var(--red-deeper) 0%, var(--red-dark) 45%, var(--red) 100%);
  color: #fff;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .045) 1px, transparent 1px);
  background-size: 56px 56px;
  pointer-events: none;
}
.hero-deco {
  position: absolute;
  border-radius: 50%;
  border: 1.5px solid rgba(201, 160, 99, .28);
  pointer-events: none;
}
.hero-deco-1 { width: 480px; height: 480px; right: -140px; top: -140px; }
.hero-deco-1::after {
  content: "";
  position: absolute; inset: 40px;
  border-radius: 50%;
  border: 1px dashed rgba(201, 160, 99, .3);
}
.hero-deco-2 { width: 260px; height: 260px; left: -90px; bottom: -80px; }

.hero-inner {
  position: relative; z-index: 2;
  display: grid;
  grid-template-columns: 1.25fr .85fr;
  gap: 56px;
  align-items: center;
  width: 100%;
}

.hero-tag {
  display: inline-block;
  font-size: 13.5px;
  letter-spacing: .28em;
  color: var(--gold-light);
  border: 1px solid rgba(201, 160, 99, .55);
  background: rgba(201, 160, 99, .1);
  padding: 8px 20px;
  border-radius: 40px;
  margin-bottom: 26px;
}
.hero-content h1 {
  font-family: var(--font-serif);
  font-size: clamp(34px, 5vw, 56px);
  font-weight: 900;
  line-height: 1.35;
  margin-bottom: 22px;
  text-shadow: 0 4px 24px rgba(0, 0, 0, .25);
}
.hero-content h1 span {
  display: inline-block;
  background: linear-gradient(90deg, var(--gold-light), var(--gold));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-sub { font-size: 16.5px; color: rgba(255, 255, 255, .88); max-width: 600px; margin-bottom: 34px; }
.hero-sub strong { color: var(--gold-light); }
.pc-only.br2 { display: block; }

.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 34px; }

.hero-points { display: flex; flex-wrap: wrap; gap: 12px 26px; }
.hero-points li { font-size: 13.5px; color: rgba(255, 255, 255, .72); position: relative; padding-left: 18px; }
.hero-points li::before {
  content: "◆";
  position: absolute; left: 0; top: 0;
  color: var(--gold); font-size: 10px;
  transform: translateY(6px);
}

/* Hero 信息卡（玻璃拟态） */
.hero-card {
  background: rgba(255, 255, 255, .09);
  border: 1px solid rgba(255, 255, 255, .22);
  border-radius: var(--radius);
  padding: 30px 28px;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: var(--shadow-lg);
}
.hero-card-head { display: flex; align-items: center; gap: 14px; padding-bottom: 20px; border-bottom: 1px solid rgba(255, 255, 255, .18); }
.hero-card-icon {
  width: 52px; height: 52px; flex: none;
  display: flex; align-items: center; justify-content: center;
  font-size: 26px;
  background: linear-gradient(135deg, var(--gold-light), var(--gold));
  border-radius: 12px;
  box-shadow: 0 6px 16px rgba(201, 160, 99, .35);
}
.hero-card-head strong { display: block; font-family: var(--font-serif); font-size: 18px; }
.hero-card-head p { font-size: 13px; color: rgba(255, 255, 255, .65); }
.hero-card-list { padding: 18px 0; display: grid; gap: 12px; }
.hero-card-list li { display: flex; justify-content: space-between; align-items: baseline; font-size: 14px; }
.hero-card-list li span { color: rgba(255, 255, 255, .6); }
.hero-card-list li em { font-style: normal; color: var(--gold-light); font-weight: 600; }
.hero-card-tel {
  background: rgba(0, 0, 0, .22);
  border-radius: 10px;
  padding: 16px 18px;
  text-align: center;
}
.hero-card-tel p { font-size: 12.5px; color: rgba(255, 255, 255, .65); margin-bottom: 4px; }
.hero-card-tel a {
  font-family: var(--font-serif);
  font-size: 26px;
  font-weight: 700;
  color: var(--gold-light);
  letter-spacing: .04em;
}

.hero-scroll {
  position: absolute;
  bottom: 26px; left: 50%;
  transform: translateX(-50%);
  width: 26px; height: 42px;
  border: 2px solid rgba(255, 255, 255, .4);
  border-radius: 14px;
  z-index: 2;
}
.hero-scroll span {
  position: absolute; left: 50%; top: 8px;
  width: 4px; height: 8px;
  background: var(--gold-light);
  border-radius: 2px;
  transform: translateX(-50%);
  animation: scrollHint 1.8s ease-in-out infinite;
}
@keyframes scrollHint {
  0% { opacity: 1; transform: translate(-50%, 0); }
  70% { opacity: 0; transform: translate(-50%, 14px); }
  100% { opacity: 0; }
}

/* =========================================================
   数据信任条
   ========================================================= */
.stats {
  background: linear-gradient(135deg, var(--red-dark), var(--red));
  border-bottom: 3px solid var(--gold);
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  text-align: center;
  color: #fff;
}
.stat-item { padding: 30px 12px; position: relative; }
.stat-item + .stat-item::before {
  content: "";
  position: absolute; left: 0; top: 50%;
  transform: translateY(-50%);
  width: 1px; height: 46px;
  background: rgba(255, 255, 255, .18);
}
.stat-item strong {
  display: block;
  font-family: var(--font-serif);
  font-size: clamp(20px, 2.4vw, 30px);
  color: var(--gold-light);
  margin-bottom: 4px;
}
.stat-item p { font-size: 13.5px; color: rgba(255, 255, 255, .72); }

/* =========================================================
   关于律所
   ========================================================= */
.about { background: var(--bg-light); }
.about-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: start; }
.about-text p { margin-bottom: 18px; color: var(--ink-2); text-align: justify; }
.about-text p strong { color: var(--red); }
.about-text .btn { margin-top: 10px; }

.about-feats { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.feat-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px 22px;
  position: relative;
  overflow: hidden;
  transition: transform .3s, box-shadow .3s;
}
.feat-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.feat-num {
  position: absolute; right: 12px; top: 6px;
  font-family: var(--font-serif);
  font-size: 44px; font-weight: 900;
  color: rgba(166, 28, 46, .08);
}
.feat-card h3 { font-family: var(--font-serif); font-size: 17px; color: var(--red); margin-bottom: 8px; }
.feat-card p { font-size: 13.5px; color: var(--ink-2); }

/* =========================================================
   常见困境
   ========================================================= */
.pain { background: var(--white); }
.pain-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.pain-card {
  background: var(--bg-light);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 22px;
  transition: all .3s ease;
  position: relative;
}
.pain-card::after {
  content: "";
  position: absolute; left: 0; top: 0;
  width: 0; height: 3px;
  background: linear-gradient(90deg, var(--gold), var(--red));
  transition: width .35s ease;
}
.pain-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: rgba(166, 28, 46, .3); }
.pain-card:hover::after { width: 100%; }
.pain-icon {
  display: inline-flex;
  align-items: center; justify-content: center;
  width: 42px; height: 42px;
  border-radius: 10px;
  background: rgba(166, 28, 46, .09);
  color: var(--red);
  font-size: 18px;
  margin-bottom: 14px;
}
.pain-card h3 { font-family: var(--font-serif); font-size: 16.5px; margin-bottom: 8px; color: var(--ink); }
.pain-card p { font-size: 13.5px; color: var(--ink-2); }

/* =========================================================
   纠纷类型全景
   ========================================================= */
.types {
  background: linear-gradient(180deg, var(--bg-gray), #EFE8DF);
}
.types-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.type-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 26px 24px;
  box-shadow: 0 4px 14px rgba(92, 13, 24, .06);
  position: relative;
  transition: all .3s ease;
  border-top: 3px solid transparent;
}
.type-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-top-color: var(--gold); }
.type-num {
  display: inline-block;
  font-family: var(--font-serif);
  font-size: 15px;
  color: #fff;
  background: linear-gradient(135deg, var(--red), var(--red-dark));
  padding: 3px 14px;
  border-radius: 30px;
  margin-bottom: 14px;
}
.type-card h3 { font-family: var(--font-serif); font-size: 17px; margin-bottom: 10px; color: var(--ink); }
.type-card p { font-size: 13.5px; color: var(--ink-2); }

/* =========================================================
   专业知识
   ========================================================= */
.knowledge { background: var(--bg-light); }
.knowledge-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.k-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 24px;
  transition: all .3s ease;
}
.k-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: rgba(201, 160, 99, .5); }
.k-card h3 {
  font-family: var(--font-serif);
  font-size: 16.5px;
  color: var(--red);
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--line);
}
.k-card h3 span { color: var(--gold); margin-right: 6px; }
.k-card p { font-size: 13.5px; color: var(--ink-2); }

.knowledge-cta {
  margin-top: 44px;
  background: linear-gradient(135deg, var(--red-dark), var(--red));
  border-radius: var(--radius);
  padding: 34px 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  color: #fff;
  box-shadow: var(--shadow-lg);
}
.knowledge-cta p { font-family: var(--font-serif); font-size: 19px; font-weight: 600; }

/* =========================================================
   解决路径
   ========================================================= */
.path { background: var(--white); }
.path-flow { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; position: relative; }
.path-flow::before {
  content: "";
  position: absolute; top: 44px; left: 6%; right: 6%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
}
.step {
  background: var(--bg-light);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px 18px;
  text-align: center;
  position: relative;
  z-index: 1;
  transition: all .3s ease;
}
.step:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.step-num {
  display: flex;
  align-items: center; justify-content: center;
  width: 56px; height: 56px;
  margin: 0 auto 14px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--red), var(--red-dark));
  color: var(--gold-light);
  font-family: var(--font-serif);
  font-size: 18px; font-weight: 700;
  border: 2px solid var(--gold-light);
  box-shadow: 0 6px 14px rgba(166, 28, 46, .3);
}
.step h3 { font-family: var(--font-serif); font-size: 15.5px; color: var(--ink); margin-bottom: 8px; }
.step p { font-size: 13px; color: var(--ink-2); }

.path-cta {
  margin-top: 48px;
  text-align: center;
  background: var(--bg-gray);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 42px 30px;
}
.path-cta h3 { font-family: var(--font-serif); font-size: 22px; margin-bottom: 10px; }
.path-cta p { color: var(--ink-2); margin-bottom: 22px; }

/* =========================================================
   法律依据
   ========================================================= */
.laws { background: var(--bg-gray); }
.laws-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.law-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 28px 26px;
  border-left: 4px solid var(--gold);
  box-shadow: 0 4px 14px rgba(92, 13, 24, .05);
  transition: all .3s ease;
}
.law-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.law-card h3 { font-family: var(--font-serif); font-size: 16.5px; color: var(--red); margin-bottom: 12px; }
.law-card p { font-size: 13.5px; color: var(--ink-2); }

/* =========================================================
   FAQ
   ========================================================= */
.faq { background: var(--white); }
.faq-list { max-width: 860px; margin: 0 auto; }
.faq-item {
  background: var(--bg-light);
  border: 1px solid var(--line);
  border-radius: 12px;
  margin-bottom: 14px;
  overflow: hidden;
  transition: border-color .3s, box-shadow .3s;
}
.faq-item.open { border-color: rgba(166, 28, 46, .35); box-shadow: var(--shadow); }
.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  font-size: 15.5px;
  font-weight: 600;
  color: var(--ink);
  text-align: left;
  transition: color .3s;
}
.faq-q:hover { color: var(--red); }
.faq-q i {
  position: relative;
  flex: none;
  width: 22px; height: 22px;
}
.faq-q i::before, .faq-q i::after {
  content: "";
  position: absolute;
  background: var(--gold);
  border-radius: 2px;
  transition: transform .3s;
}
.faq-q i::before { left: 3px; right: 3px; top: 10px; height: 2px; }
.faq-q i::after { top: 3px; bottom: 3px; left: 10px; width: 2px; }
.faq-item.open .faq-q i::after { transform: scaleY(0); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .4s ease;
}
.faq-a p {
  padding: 0 24px 22px;
  font-size: 14px;
  color: var(--ink-2);
  border-top: 1px dashed var(--line);
  padding-top: 16px;
  margin: 0 24px 0 0;
}
.faq-item.open .faq-a { max-height: 400px; }

/* =========================================================
   联系我们
   ========================================================= */
.contact {
  background:
    radial-gradient(700px 340px at 90% 10%, rgba(201, 160, 99, .25), transparent 60%),
    linear-gradient(150deg, var(--red-deeper), var(--red-dark) 55%, var(--red));
}
.contact-box {
  background: rgba(255, 255, 255, .07);
  border: 1px solid rgba(255, 255, 255, .2);
  border-radius: 18px;
  padding: 52px 56px;
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 48px;
  align-items: center;
  color: #fff;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.contact-box .section-kicker { border-color: rgba(201, 160, 99, .6); }
.contact-info h2 {
  font-family: var(--font-serif);
  font-size: clamp(24px, 3vw, 34px);
  margin: 6px 0 16px;
}
.contact-info > p { color: rgba(255, 255, 255, .82); font-size: 15px; margin-bottom: 24px; max-width: 520px; }
.contact-list { display: grid; gap: 12px; }
.contact-list li { font-size: 15px; color: rgba(255, 255, 255, .9); }
.contact-list li span { color: var(--gold-light); margin-right: 8px; }
.contact-list a { color: var(--gold-light); font-weight: 700; }

.contact-tel {
  text-align: center;
  background: rgba(0, 0, 0, .22);
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: 16px;
  padding: 38px 26px;
}
.contact-tel p { color: rgba(255, 255, 255, .7); font-size: 14px; margin-bottom: 8px; }
.contact-big-tel {
  display: block;
  font-family: var(--font-serif);
  font-size: clamp(28px, 3.4vw, 40px);
  font-weight: 700;
  color: var(--gold-light);
  letter-spacing: .05em;
  margin-bottom: 6px;
}
.contact-note { display: block; font-size: 13px; color: rgba(255, 255, 255, .6); margin-bottom: 24px; }

/* =========================================================
   页脚
   ========================================================= */
.site-footer { background: #3A0A12; color: rgba(255, 255, 255, .75); padding: 56px 0 30px; }
.footer-tags { border-bottom: 1px solid rgba(255, 255, 255, .1); padding-bottom: 30px; margin-bottom: 30px; }
.footer-tags-title {
  font-size: 14px; font-weight: 700;
  color: var(--gold-light);
  margin-bottom: 14px;
  letter-spacing: .15em;
}
.footer-tags-list { display: flex; flex-wrap: wrap; gap: 10px; }
.footer-tags-list a {
  font-size: 13px;
  padding: 6px 14px;
  border: 1px solid rgba(255, 255, 255, .16);
  border-radius: 30px;
  transition: all .25s;
}
.footer-tags-list a:hover { border-color: var(--gold); color: var(--gold-light); }
.footer-main {
  display: flex;
  justify-content: space-between;
  gap: 30px;
  flex-wrap: wrap;
  padding-bottom: 26px;
}
.footer-about { max-width: 560px; }
.footer-about h3 { font-family: var(--font-serif); color: #fff; font-size: 17px; margin-bottom: 10px; }
.footer-about p { font-size: 13.5px; color: rgba(255, 255, 255, .6); }
.footer-contact p { font-size: 14px; margin-bottom: 6px; }
.footer-contact a { color: var(--gold-light); font-weight: 700; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .1);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 12.5px;
  color: rgba(255, 255, 255, .45);
}

/* =========================================================
   移动端固定拨号栏 & 返回顶部
   ========================================================= */
.mobile-telbar {
  display: none;
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 90;
  background: linear-gradient(135deg, var(--gold-light), var(--gold) 50%, #B98A4E);
  box-shadow: 0 -4px 18px rgba(92, 13, 24, .25);
  padding: 10px 14px calc(10px + env(safe-area-inset-bottom, 0px));
}
.mobile-tel-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: var(--red-dark);
  color: #fff;
  border-radius: 12px;
  padding: 13px 16px;
  font-size: 15px;
  box-shadow: 0 6px 16px rgba(92, 13, 24, .35);
}
.mobile-tel-btn:active { transform: scale(.98); }
.mobile-tel-btn .mt-icon { font-size: 18px; color: var(--gold-light); }
.mobile-tel-btn strong { font-family: var(--font-serif); font-size: 18px; letter-spacing: .05em; color: var(--gold-light); }

.back-top {
  position: fixed;
  right: 22px; bottom: 90px;
  z-index: 80;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--red);
  color: #fff;
  font-size: 18px;
  box-shadow: 0 6px 18px rgba(166, 28, 46, .4);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all .3s;
}
.back-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.back-top:hover { background: var(--red-dark); }

/* =========================================================
   滚动入场动画
   ========================================================= */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .7s ease, transform .7s ease;
}
.reveal.in { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* =========================================================
   响应式
   ========================================================= */
@media (max-width: 1024px) {
  .pain-grid, .types-grid, .knowledge-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(5, 1fr); }
  .path-flow { grid-template-columns: repeat(3, 1fr); }
  .path-flow::before { display: none; }
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-card { max-width: 520px; }
  .hero { text-align: left; }
}

@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; }
  .laws-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-box { grid-template-columns: 1fr; padding: 40px 30px; }
  .main-nav {
    position: fixed;
    top: var(--header-h);
    right: 0;
    width: min(78vw, 330px);
    height: calc(100vh - var(--header-h));
    background: var(--red-deeper);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 20px 30px 40px;
    transform: translateX(100%);
    transition: transform .35s ease;
    box-shadow: -10px 0 30px rgba(0, 0, 0, .3);
    overflow-y: auto;
    z-index: 120;
  }
  .main-nav.open { transform: translateX(0); }
  .main-nav a {
    display: block;
    width: 100%;
    padding: 14px 0;
    font-size: 16px;
    color: rgba(255, 255, 255, .92);
    border-bottom: 1px solid rgba(255, 255, 255, .1);
  }
  .main-nav .nav-tel { margin-top: 18px; text-align: center; }
  .nav-mask {
    position: fixed;
    inset: var(--header-h) 0 0 0;
    background: rgba(38, 8, 13, .55);
    backdrop-filter: blur(2px);
    z-index: 95;
    opacity: 0;
    visibility: hidden;
    transition: opacity .3s;
  }
  .nav-mask.show { opacity: 1; visibility: visible; }
  .menu-toggle { display: flex; }
}

@media (max-width: 560px) {
  :root { --header-h: 62px; }
  body { font-size: 15px; }
  .section { padding: 64px 0; }
  .section-head { margin-bottom: 40px; }
  .container { padding: 0 18px; }

  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 6px; }
  .stat-item { padding: 20px 8px; }
  .stat-item:nth-child(5) { grid-column: span 2; }
  .stat-item + .stat-item::before { display: none; }

  .hero { min-height: calc(100vh - 0px); padding: calc(var(--header-h) + 30px) 0 80px; }
  .hero-content h1 { font-size: 30px; }
  .hero-sub { font-size: 15px; }
  .hero-actions .btn { width: 100%; }
  .hero-card { padding: 22px 18px; }

  .pain-grid, .types-grid, .knowledge-grid, .laws-grid { grid-template-columns: 1fr; }
  .about-feats { grid-template-columns: 1fr; }
  .path-flow { grid-template-columns: 1fr; }
  .knowledge-cta { padding: 26px 22px; text-align: center; justify-content: center; }
  .knowledge-cta .btn { width: 100%; }
  .path-cta .btn { width: 100%; }
  .contact-box { padding: 34px 22px; }
  .footer-main { flex-direction: column; }
  .brand-text strong { font-size: 15px; }
  .brand-text em { font-size: 9px; }

  .mobile-telbar { display: block; }
  .back-top { bottom: 110px; }
}