/* ==========================================================================
   锐动 REDMOTION — 主样式表
   配色：活力橙 #FF5A1F / 炭黑 #111418 / 浅灰 #F5F6F7 / 薄荷绿 #00C2A8
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. 设计令牌
   -------------------------------------------------------------------------- */
:root {
  /* 品牌色 */
  --c-brand: #ff5a1f;
  --c-brand-dark: #e04710;
  --c-brand-light: #ff7a4a;
  --c-brand-tint: #fff2ed;

  /* 中性色 */
  --c-ink: #111418;
  --c-ink-2: #1c2126;
  --c-ink-3: #2a3138;
  --c-body: #414952;
  --c-muted: #767f89;
  --c-line: #e3e6ea;
  --c-surface: #f5f6f7;
  --c-white: #ffffff;

  /* 强调色 */
  --c-mint: #00c2a8;
  --c-mint-tint: #e6faf7;

  /* 字体 */
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
    "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-num: "Bebas Neue", "Oswald", "Impact", var(--font-sans);

  /* 间距 */
  --sp-1: 4px;
  --sp-2: 8px;
  --sp-3: 12px;
  --sp-4: 16px;
  --sp-5: 24px;
  --sp-6: 32px;
  --sp-7: 48px;
  --sp-8: 64px;
  --sp-9: 96px;

  /* 圆角与阴影 */
  --r-sm: 4px;
  --r-md: 8px;
  --r-lg: 16px;
  --r-pill: 999px;
  --shadow-sm: 0 1px 3px rgba(17, 20, 24, 0.08);
  --shadow-md: 0 4px 16px rgba(17, 20, 24, 0.1);
  --shadow-lg: 0 12px 40px rgba(17, 20, 24, 0.14);

  /* 布局 */
  --wrap: 1200px;
  --nav-h: 72px;

  /* 动效 */
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* --------------------------------------------------------------------------
   2. 基础重置
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--c-body);
  background: var(--c-white);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  color: var(--c-ink);
  line-height: 1.25;
  font-weight: 700;
  letter-spacing: -0.01em;
}

p {
  margin: 0;
}

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

input,
select,
textarea {
  font-family: inherit;
  font-size: 15px;
}

:focus-visible {
  outline: 3px solid var(--c-brand);
  outline-offset: 2px;
  border-radius: var(--r-sm);
}

/* --------------------------------------------------------------------------
   3. 布局工具
   -------------------------------------------------------------------------- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 var(--sp-5);
}

.section {
  padding: var(--sp-9) 0;
}

.section--tight {
  padding: var(--sp-8) 0;
}

.section--surface {
  background: var(--c-surface);
}

.section--ink {
  background: var(--c-ink);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: var(--sp-4);
  z-index: 200;
  background: var(--c-brand);
  color: var(--c-white);
  padding: var(--sp-3) var(--sp-5);
  border-radius: 0 0 var(--r-md) var(--r-md);
  font-weight: 600;
}

.skip-link:focus {
  top: 0;
}

/* --------------------------------------------------------------------------
   4. 版块标题
   -------------------------------------------------------------------------- */
.sec-head {
  max-width: 720px;
  margin-bottom: var(--sp-7);
}

.sec-head--center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-brand);
  margin-bottom: var(--sp-3);
}

.eyebrow::before {
  content: "";
  width: 24px;
  height: 2px;
  background: var(--c-brand);
}

.sec-head--center .eyebrow::before {
  display: none;
}

.sec-title {
  font-size: clamp(28px, 4vw, 42px);
  margin-bottom: var(--sp-4);
}

.sec-desc {
  font-size: 17px;
  color: var(--c-muted);
}

.section--ink .sec-title,
.section--ink h3 {
  color: var(--c-white);
}

.section--ink .sec-desc {
  color: rgba(255, 255, 255, 0.7);
}

/* --------------------------------------------------------------------------
   5. 按钮
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  padding: 14px var(--sp-6);
  border-radius: var(--r-pill);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: transform 0.2s var(--ease), background-color 0.2s var(--ease),
    box-shadow 0.2s var(--ease), color 0.2s var(--ease);
  white-space: nowrap;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn:active {
  transform: translateY(0);
}

.btn--primary {
  background: var(--c-brand);
  color: var(--c-white);
  box-shadow: 0 4px 14px rgba(255, 90, 31, 0.3);
}

.btn--primary:hover {
  background: var(--c-brand-dark);
  box-shadow: 0 8px 22px rgba(255, 90, 31, 0.38);
}

.btn--ghost {
  background: transparent;
  color: var(--c-ink);
  box-shadow: inset 0 0 0 1.5px var(--c-line);
}

.btn--ghost:hover {
  box-shadow: inset 0 0 0 1.5px var(--c-ink);
}

.btn--on-dark {
  background: rgba(255, 255, 255, 0.1);
  color: var(--c-white);
  box-shadow: inset 0 0 0 1.5px rgba(255, 255, 255, 0.28);
}

.btn--on-dark:hover {
  background: rgba(255, 255, 255, 0.18);
}

.btn--sm {
  padding: 10px var(--sp-5);
  font-size: 14px;
}

.btn--block {
  width: 100%;
}

/* 文字箭头链接 */
.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  font-weight: 600;
  font-size: 15px;
  color: var(--c-brand);
}

.link-arrow svg {
  transition: transform 0.2s var(--ease);
}

.link-arrow:hover svg {
  transform: translateX(4px);
}

/* --------------------------------------------------------------------------
   6. 顶部导航
   -------------------------------------------------------------------------- */
.topbar {
  background: var(--c-ink-2);
  color: rgba(255, 255, 255, 0.72);
  font-size: 13px;
}

.topbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
  height: 38px;
}

.topbar__list {
  display: flex;
  gap: var(--sp-5);
}

.topbar__list li {
  display: flex;
  align-items: center;
  gap: 6px;
}

.topbar a:hover {
  color: var(--c-white);
}

.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(17, 20, 24, 0.96);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  transition: box-shadow 0.25s var(--ease);
}

.nav.is-stuck {
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.28);
}

.nav__inner {
  display: flex;
  align-items: center;
  gap: var(--sp-6);
  height: var(--nav-h);
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.logo__mark {
  width: 34px;
  height: 34px;
  flex-shrink: 0;
}

.logo__text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.logo__cn {
  font-size: 17px;
  font-weight: 800;
  color: var(--c-white);
  letter-spacing: 0.06em;
}

.logo__en {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: var(--c-brand);
}

/* 主菜单 */
.nav__menu {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  margin-left: auto;
}

.nav__link {
  display: block;
  padding: 10px var(--sp-4);
  border-radius: var(--r-pill);
  font-size: 15px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.82);
  transition: color 0.2s var(--ease), background-color 0.2s var(--ease);
}

.nav__link:hover {
  color: var(--c-white);
  background: rgba(255, 255, 255, 0.08);
}

.nav__link.is-active {
  color: var(--c-white);
  background: var(--c-brand);
}

.nav__cta {
  margin-left: var(--sp-3);
}

/* 汉堡按钮 */
.nav__toggle {
  display: none;
  width: 44px;
  height: 44px;
  margin-left: auto;
  align-items: center;
  justify-content: center;
  border-radius: var(--r-md);
}

.nav__toggle span {
  position: relative;
  display: block;
  width: 22px;
  height: 2px;
  background: var(--c-white);
  transition: background 0.2s var(--ease);
}

.nav__toggle span::before,
.nav__toggle span::after {
  content: "";
  position: absolute;
  left: 0;
  width: 22px;
  height: 2px;
  background: var(--c-white);
  transition: transform 0.25s var(--ease);
}

.nav__toggle span::before {
  top: -7px;
}

.nav__toggle span::after {
  top: 7px;
}

.nav__toggle[aria-expanded="true"] span {
  background: transparent;
}

.nav__toggle[aria-expanded="true"] span::before {
  transform: translateY(7px) rotate(45deg);
}

.nav__toggle[aria-expanded="true"] span::after {
  transform: translateY(-7px) rotate(-45deg);
}

/* --------------------------------------------------------------------------
   7. 页面横幅（内页）
   -------------------------------------------------------------------------- */
.pagehead {
  position: relative;
  padding: var(--sp-8) 0;
  background: var(--c-ink);
  color: var(--c-white);
  overflow: hidden;
}

.pagehead::after {
  content: "";
  position: absolute;
  top: -40%;
  right: -10%;
  width: 520px;
  height: 520px;
  background: radial-gradient(
    circle,
    rgba(255, 90, 31, 0.28) 0%,
    transparent 68%
  );
  pointer-events: none;
}

.pagehead__inner {
  position: relative;
  z-index: 1;
  max-width: 720px;
}

.pagehead h1 {
  font-size: clamp(30px, 4.4vw, 46px);
  color: var(--c-white);
  margin-bottom: var(--sp-4);
}

.pagehead p {
  font-size: 17px;
  color: rgba(255, 255, 255, 0.72);
}

.crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--sp-2);
  font-size: 13px;
  color: rgba(255, 255, 255, 0.55);
  margin-bottom: var(--sp-4);
}

.crumb a:hover {
  color: var(--c-white);
}

.crumb span[aria-current] {
  color: var(--c-brand);
}

/* --------------------------------------------------------------------------
   8. 首页主视觉
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  background: var(--c-ink);
  color: var(--c-white);
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  opacity: 0.5;
}

.hero__bg::before {
  content: "";
  position: absolute;
  top: -20%;
  left: 52%;
  width: 760px;
  height: 760px;
  background: radial-gradient(
    circle,
    rgba(255, 90, 31, 0.42) 0%,
    transparent 66%
  );
}

.hero__bg::after {
  content: "";
  position: absolute;
  bottom: -30%;
  left: -12%;
  width: 620px;
  height: 620px;
  background: radial-gradient(
    circle,
    rgba(0, 194, 168, 0.24) 0%,
    transparent 68%
  );
}

.hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: var(--sp-8);
  align-items: center;
  padding: var(--sp-9) 0;
}

.hero__tag {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: 6px var(--sp-4);
  border-radius: var(--r-pill);
  background: rgba(255, 90, 31, 0.14);
  color: var(--c-brand-light);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  margin-bottom: var(--sp-5);
}

.hero__tag i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--c-brand);
}

.hero h1 {
  font-size: clamp(36px, 5.4vw, 60px);
  color: var(--c-white);
  line-height: 1.14;
  margin-bottom: var(--sp-5);
}

.hero h1 em {
  font-style: normal;
  color: var(--c-brand);
}

.hero__lead {
  font-size: 18px;
  color: rgba(255, 255, 255, 0.74);
  max-width: 520px;
  margin-bottom: var(--sp-7);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-4);
  margin-bottom: var(--sp-8);
}

/* 数据条 */
.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-5);
  padding-top: var(--sp-6);
  border-top: 1px solid rgba(255, 255, 255, 0.14);
}

.stat__num {
  display: flex;
  align-items: baseline;
  gap: 2px;
  font-size: 34px;
  font-weight: 800;
  color: var(--c-white);
  line-height: 1;
  letter-spacing: -0.02em;
}

.stat__num span {
  font-size: 18px;
  color: var(--c-brand);
}

.stat__label {
  margin-top: 6px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.55);
}

/* 主视觉卡片 */
.hero__visual {
  position: relative;
}

.hero__card {
  position: relative;
  border-radius: var(--r-lg);
  overflow: hidden;
  background: linear-gradient(145deg, var(--c-ink-3), var(--c-ink));
  box-shadow: var(--shadow-lg);
  aspect-ratio: 4 / 5;
}

.hero__card svg {
  width: 100%;
  height: 100%;
}

.hero__badge {
  position: absolute;
  left: calc(-1 * var(--sp-5));
  bottom: var(--sp-7);
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-4) var(--sp-5);
  background: var(--c-white);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-lg);
  animation: float 4s ease-in-out infinite;
}

.hero__badge-icon {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: var(--r-md);
  background: var(--c-mint-tint);
  flex-shrink: 0;
}

.hero__badge-t {
  font-size: 15px;
  font-weight: 700;
  color: var(--c-ink);
  line-height: 1.3;
}

.hero__badge-s {
  font-size: 12px;
  color: var(--c-muted);
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

/* --------------------------------------------------------------------------
   9. 品牌墙
   -------------------------------------------------------------------------- */
.brandbar {
  padding: var(--sp-6) 0;
  border-bottom: 1px solid var(--c-line);
}

.brandbar__label {
  text-align: center;
  font-size: 13px;
  color: var(--c-muted);
  letter-spacing: 0.08em;
  margin-bottom: var(--sp-5);
}

.brandbar__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: var(--sp-5) var(--sp-8);
}

.brandbar__item {
  font-size: 19px;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: #b9bfc6;
  transition: color 0.25s var(--ease);
}

.brandbar__item:hover {
  color: var(--c-ink);
}

/* --------------------------------------------------------------------------
   10. 通用卡片网格
   -------------------------------------------------------------------------- */
.grid {
  display: grid;
  gap: var(--sp-5);
}

.grid--2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid--3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid--4 {
  grid-template-columns: repeat(4, 1fr);
}

/* 品类卡片 */
.cat {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  min-height: 300px;
  padding: var(--sp-6);
  border-radius: var(--r-lg);
  background: var(--c-ink);
  color: var(--c-white);
  overflow: hidden;
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.cat:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.cat__art {
  position: absolute;
  inset: 0;
  opacity: 0.9;
  transition: transform 0.5s var(--ease);
}

.cat:hover .cat__art {
  transform: scale(1.06);
}

.cat__art svg {
  width: 100%;
  height: 100%;
}

.cat__body {
  position: relative;
  z-index: 1;
}

.cat__tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: var(--r-pill);
  background: rgba(255, 255, 255, 0.16);
  font-size: 12px;
  font-weight: 600;
  margin-bottom: var(--sp-3);
  backdrop-filter: blur(4px);
}

.cat h3 {
  font-size: 21px;
  color: var(--c-white);
  margin-bottom: 6px;
}

.cat p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.76);
  margin-bottom: var(--sp-4);
}

.cat__more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--c-brand-light);
}

.cat--wide {
  grid-column: span 2;
}

/* 特性卡片 */
.feature {
  padding: var(--sp-6);
  background: var(--c-white);
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease),
    box-shadow 0.25s var(--ease);
}

.feature:hover {
  border-color: transparent;
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.feature__icon {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border-radius: var(--r-md);
  background: var(--c-brand-tint);
  margin-bottom: var(--sp-4);
}

.feature h3 {
  font-size: 18px;
  margin-bottom: var(--sp-2);
}

.feature p {
  font-size: 15px;
  color: var(--c-muted);
}

/* --------------------------------------------------------------------------
   11. 产品卡片与筛选
   -------------------------------------------------------------------------- */
.filters {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-5) 0;
  margin-bottom: var(--sp-6);
  border-bottom: 1px solid var(--c-line);
}

.filters__label {
  font-size: 14px;
  font-weight: 600;
  color: var(--c-ink);
  margin-right: var(--sp-2);
}

.chip {
  padding: 8px var(--sp-4);
  border-radius: var(--r-pill);
  background: var(--c-surface);
  font-size: 14px;
  font-weight: 500;
  color: var(--c-body);
  transition: all 0.2s var(--ease);
}

.chip:hover {
  background: var(--c-line);
}

.chip.is-active {
  background: var(--c-ink);
  color: var(--c-white);
}

.filters__count {
  margin-left: auto;
  font-size: 14px;
  color: var(--c-muted);
}

.filters__count b {
  color: var(--c-brand);
}

.product {
  display: flex;
  flex-direction: column;
  background: var(--c-white);
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  overflow: hidden;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease),
    border-color 0.25s var(--ease);
}

.product:hover {
  transform: translateY(-5px);
  border-color: transparent;
  box-shadow: var(--shadow-lg);
}

.product__media {
  position: relative;
  aspect-ratio: 1 / 1;
  background: var(--c-surface);
  overflow: hidden;
}

.product__media svg {
  width: 100%;
  height: 100%;
  transition: transform 0.4s var(--ease);
}

.product:hover .product__media svg {
  transform: scale(1.05);
}

.product__flag {
  position: absolute;
  top: var(--sp-3);
  left: var(--sp-3);
  padding: 4px 10px;
  border-radius: var(--r-sm);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--c-white);
  background: var(--c-brand);
}

.product__flag--mint {
  background: var(--c-mint);
}

.product__flag--ink {
  background: var(--c-ink);
}

.product__body {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: var(--sp-5);
}

.product__cat {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--c-muted);
  text-transform: uppercase;
  margin-bottom: 6px;
}

.product h3 {
  font-size: 17px;
  margin-bottom: var(--sp-2);
}

.product__desc {
  font-size: 14px;
  color: var(--c-muted);
  margin-bottom: var(--sp-4);
  flex: 1;
}

.product__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3);
  padding-top: var(--sp-4);
  border-top: 1px solid var(--c-line);
}

.product__price {
  font-size: 20px;
  font-weight: 800;
  color: var(--c-ink);
}

.product__price small {
  font-size: 13px;
  font-weight: 500;
  color: var(--c-muted);
}

.product__price del {
  display: block;
  font-size: 13px;
  font-weight: 400;
  color: var(--c-muted);
}

.empty {
  padding: var(--sp-9) var(--sp-5);
  text-align: center;
  color: var(--c-muted);
}

.empty h3 {
  margin-bottom: var(--sp-2);
}

/* --------------------------------------------------------------------------
   12. 品牌故事：时间线与数值
   -------------------------------------------------------------------------- */
.timeline {
  position: relative;
  padding-left: var(--sp-7);
}

.timeline::before {
  content: "";
  position: absolute;
  top: 8px;
  bottom: 8px;
  left: 7px;
  width: 2px;
  background: var(--c-line);
}

.tl-item {
  position: relative;
  padding-bottom: var(--sp-7);
}

.tl-item:last-child {
  padding-bottom: 0;
}

.tl-item::before {
  content: "";
  position: absolute;
  top: 8px;
  left: calc(-1 * var(--sp-7) + 2px);
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--c-white);
  border: 3px solid var(--c-brand);
}

.tl-year {
  font-size: 15px;
  font-weight: 800;
  color: var(--c-brand);
  letter-spacing: 0.04em;
  margin-bottom: 6px;
}

.tl-item h3 {
  font-size: 19px;
  margin-bottom: var(--sp-2);
}

.tl-item p {
  font-size: 15px;
  color: var(--c-muted);
}

.value {
  padding: var(--sp-6);
  border-radius: var(--r-lg);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.value__num {
  font-size: 15px;
  font-weight: 800;
  color: var(--c-brand);
  margin-bottom: var(--sp-3);
  letter-spacing: 0.06em;
}

.value h3 {
  font-size: 19px;
  color: var(--c-white);
  margin-bottom: var(--sp-2);
}

.value p {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.66);
}

/* 图文并排 */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-8);
  align-items: center;
}

.split__media {
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--c-surface);
  aspect-ratio: 4 / 3;
}

.split__media svg {
  width: 100%;
  height: 100%;
}

.split h2 {
  font-size: clamp(26px, 3.4vw, 36px);
  margin-bottom: var(--sp-4);
}

.split p + p {
  margin-top: var(--sp-4);
}

.split p {
  font-size: 16px;
  color: var(--c-muted);
}

.checklist {
  margin-top: var(--sp-5);
  display: grid;
  gap: var(--sp-3);
}

.checklist li {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-3);
  font-size: 15px;
  color: var(--c-body);
}

.checklist svg {
  flex-shrink: 0;
  margin-top: 3px;
}

/* --------------------------------------------------------------------------
   13. 门店与服务
   -------------------------------------------------------------------------- */
.store {
  display: flex;
  flex-direction: column;
  background: var(--c-white);
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  overflow: hidden;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.store:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.store__media {
  aspect-ratio: 16 / 10;
  background: var(--c-surface);
}

.store__media svg {
  width: 100%;
  height: 100%;
}

.store__body {
  padding: var(--sp-5);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.store__city {
  display: inline-block;
  align-self: flex-start;
  padding: 3px 10px;
  border-radius: var(--r-pill);
  background: var(--c-brand-tint);
  color: var(--c-brand-dark);
  font-size: 12px;
  font-weight: 700;
  margin-bottom: var(--sp-3);
}

.store h3 {
  font-size: 18px;
  margin-bottom: var(--sp-3);
}

.store__info {
  display: grid;
  gap: var(--sp-2);
  font-size: 14px;
  color: var(--c-muted);
  flex: 1;
}

.store__info li {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-3);
}

.store__info svg {
  flex-shrink: 0;
  margin-top: 4px;
}

.store__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: var(--sp-4);
  padding-top: var(--sp-4);
  border-top: 1px solid var(--c-line);
}

.tag {
  padding: 3px 10px;
  border-radius: var(--r-sm);
  background: var(--c-surface);
  font-size: 12px;
  color: var(--c-body);
}

/* 服务步骤 */
.step {
  position: relative;
  padding: var(--sp-6);
  background: var(--c-white);
  border-radius: var(--r-lg);
  border: 1px solid var(--c-line);
}

.step__num {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--c-ink);
  color: var(--c-white);
  font-size: 17px;
  font-weight: 800;
  margin-bottom: var(--sp-4);
}

.step h3 {
  font-size: 18px;
  margin-bottom: var(--sp-2);
}

.step p {
  font-size: 15px;
  color: var(--c-muted);
}

/* 手风琴 FAQ */
.faq {
  border-top: 1px solid var(--c-line);
}

.faq__item {
  border-bottom: 1px solid var(--c-line);
}

.faq__q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
  width: 100%;
  padding: var(--sp-5) 0;
  text-align: left;
  font-size: 17px;
  font-weight: 600;
  color: var(--c-ink);
  transition: color 0.2s var(--ease);
}

.faq__q:hover {
  color: var(--c-brand);
}

.faq__icon {
  position: relative;
  flex-shrink: 0;
  width: 20px;
  height: 20px;
}

.faq__icon::before,
.faq__icon::after {
  content: "";
  position: absolute;
  top: 9px;
  left: 0;
  width: 20px;
  height: 2px;
  background: currentColor;
  transition: transform 0.25s var(--ease);
}

.faq__icon::after {
  transform: rotate(90deg);
}

.faq__q[aria-expanded="true"] .faq__icon::after {
  transform: rotate(0deg);
}

.faq__a {
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.3s var(--ease);
}

.faq__a p {
  padding-bottom: var(--sp-5);
  font-size: 15px;
  color: var(--c-muted);
  max-width: 800px;
}

/* --------------------------------------------------------------------------
   14. 联系我们
   -------------------------------------------------------------------------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: var(--sp-8);
  align-items: start;
}

.info-card {
  display: flex;
  gap: var(--sp-4);
  padding: var(--sp-5);
  background: var(--c-white);
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
}

.info-card + .info-card {
  margin-top: var(--sp-4);
}

.info-card__icon {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  flex-shrink: 0;
  border-radius: var(--r-md);
  background: var(--c-brand-tint);
}

.info-card h3 {
  font-size: 16px;
  margin-bottom: 4px;
}

.info-card p {
  font-size: 15px;
  color: var(--c-muted);
}

.info-card a {
  color: var(--c-brand);
  font-weight: 600;
}

.info-card a:hover {
  text-decoration: underline;
}

/* 表单 */
.form {
  padding: var(--sp-7);
  background: var(--c-white);
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-sm);
}

.form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-4);
}

.field {
  margin-bottom: var(--sp-5);
}

.field label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--c-ink);
  margin-bottom: var(--sp-2);
}

.field label .req {
  color: var(--c-brand);
}

.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 12px var(--sp-4);
  border: 1.5px solid var(--c-line);
  border-radius: var(--r-md);
  background: var(--c-white);
  color: var(--c-ink);
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.field textarea {
  min-height: 120px;
  resize: vertical;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--c-brand);
  box-shadow: 0 0 0 3px rgba(255, 90, 31, 0.14);
}

.field.has-error input,
.field.has-error select,
.field.has-error textarea {
  border-color: #d92d20;
}

.field__err {
  display: none;
  margin-top: 6px;
  font-size: 13px;
  color: #d92d20;
}

.field.has-error .field__err {
  display: block;
}

.form__note {
  font-size: 13px;
  color: var(--c-muted);
  margin-top: var(--sp-4);
  text-align: center;
}

.form__ok {
  display: none;
  align-items: flex-start;
  gap: var(--sp-3);
  padding: var(--sp-4) var(--sp-5);
  margin-bottom: var(--sp-5);
  border-radius: var(--r-md);
  background: var(--c-mint-tint);
  border: 1px solid rgba(0, 194, 168, 0.35);
  font-size: 14px;
  color: #05715f;
}

.form__ok.is-on {
  display: flex;
}

.form__ok svg {
  flex-shrink: 0;
  margin-top: 2px;
}

/* --------------------------------------------------------------------------
   15. CTA 区块
   -------------------------------------------------------------------------- */
.cta {
  position: relative;
  padding: var(--sp-9) 0;
  background: var(--c-ink);
  color: var(--c-white);
  overflow: hidden;
  text-align: center;
}

.cta::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 900px;
  height: 500px;
  background: radial-gradient(
    ellipse,
    rgba(255, 90, 31, 0.26) 0%,
    transparent 70%
  );
}

.cta__inner {
  position: relative;
  z-index: 1;
  max-width: 720px;
  margin: 0 auto;
}

.cta h2 {
  font-size: clamp(28px, 4vw, 42px);
  color: var(--c-white);
  margin-bottom: var(--sp-4);
}

.cta p {
  font-size: 17px;
  color: rgba(255, 255, 255, 0.72);
  margin-bottom: var(--sp-7);
}

.cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-4);
  justify-content: center;
}

/* --------------------------------------------------------------------------
   16. 页脚
   -------------------------------------------------------------------------- */
.footer {
  background: var(--c-ink-2);
  color: rgba(255, 255, 255, 0.62);
  padding: var(--sp-8) 0 var(--sp-5);
  font-size: 14px;
}

.footer__top {
  display: grid;
  grid-template-columns: 1.6fr repeat(3, 1fr);
  gap: var(--sp-7);
  padding-bottom: var(--sp-7);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer__about p {
  margin: var(--sp-4) 0 var(--sp-5);
  max-width: 320px;
  line-height: 1.75;
}

.footer h4 {
  font-size: 15px;
  color: var(--c-white);
  margin-bottom: var(--sp-4);
}

.footer__links {
  display: grid;
  gap: var(--sp-3);
}

.footer__links a:hover {
  color: var(--c-brand);
}

.socials {
  display: flex;
  gap: var(--sp-3);
}

.socials a {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: var(--r-md);
  background: rgba(255, 255, 255, 0.08);
  transition: background 0.2s var(--ease), transform 0.2s var(--ease);
}

.socials a:hover {
  background: var(--c-brand);
  transform: translateY(-2px);
}

.footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
  padding-top: var(--sp-5);
  font-size: 13px;
  color: rgba(255, 255, 255, 0.45);
}

.footer__bottom nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-5);
}

.footer__bottom a:hover {
  color: var(--c-white);
}

/* 回到顶部 */
.totop {
  position: fixed;
  right: var(--sp-5);
  bottom: var(--sp-5);
  z-index: 90;
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--c-brand);
  color: var(--c-white);
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: all 0.28s var(--ease);
}

.totop.is-on {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.totop:hover {
  background: var(--c-brand-dark);
}

/* --------------------------------------------------------------------------
   17. 滚动入场动画
   -------------------------------------------------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}

.reveal.is-in {
  opacity: 1;
  transform: none;
}

/* --------------------------------------------------------------------------
   18. 响应式
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .hero__inner {
    grid-template-columns: 1fr;
    gap: var(--sp-7);
  }

  .hero__visual {
    max-width: 460px;
  }

  .hero__badge {
    left: auto;
    right: var(--sp-5);
  }

  .grid--4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer__top {
    grid-template-columns: 1fr 1fr;
    gap: var(--sp-6);
  }

  .contact-grid,
  .split {
    grid-template-columns: 1fr;
    gap: var(--sp-6);
  }
}

@media (max-width: 860px) {
  :root {
    --sp-9: 64px;
    --sp-8: 48px;
  }

  .topbar__list li:not(:first-child) {
    display: none;
  }

  .nav__toggle {
    display: flex;
  }

  .nav__menu {
    position: absolute;
    top: var(--nav-h);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: var(--sp-1);
    padding: var(--sp-4) var(--sp-5) var(--sp-6);
    background: var(--c-ink);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: var(--shadow-lg);
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    transition: all 0.25s var(--ease);
  }

  .nav__menu.is-open {
    transform: none;
    opacity: 1;
    visibility: visible;
  }

  .nav__link {
    padding: var(--sp-4);
    border-radius: var(--r-md);
    font-size: 16px;
  }

  .nav__cta {
    margin: var(--sp-3) 0 0;
  }

  .grid--3,
  .grid--2 {
    grid-template-columns: 1fr;
  }

  .cat--wide {
    grid-column: auto;
  }

  .form__row {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .form {
    padding: var(--sp-5);
  }
}

@media (max-width: 560px) {
  .wrap {
    padding: 0 var(--sp-4);
  }

  .grid--4 {
    grid-template-columns: 1fr;
  }

  .stats {
    grid-template-columns: 1fr;
    gap: var(--sp-4);
  }

  .hero__actions .btn {
    width: 100%;
  }

  .hero__badge {
    right: var(--sp-3);
    bottom: var(--sp-4);
    padding: var(--sp-3) var(--sp-4);
  }

  .footer__top {
    grid-template-columns: 1fr;
  }

  .footer__bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  .filters__count {
    margin-left: 0;
    width: 100%;
  }
}

/* 尊重减少动效偏好 */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}