:root {
  --bg: #f6f8fb;
  --card: #ffffff;
  --text: #122033;
  --muted: #5d6b7c;
  --line: #dde5ef;
  --primary: #0d7c66;
  --primary-dark: #075c4b;
  --accent: #ffb23f;
  --dark: #0d1b2a;
  --shadow: 0 18px 45px rgba(15, 35, 60, 0.10);
  --radius: 18px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
}

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

.container {
  width: min(1160px, calc(100% - 32px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(221, 229, 239, 0.9);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 74px;
}

.brand {
  display: flex;
  gap: 12px;
  align-items: center;
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 12px;
  color: #fff;
  background: linear-gradient(135deg, var(--primary), #23a98d);
  font-weight: 800;
}

.brand strong {
  display: block;
  font-size: 18px;
}

.brand small {
  display: block;
  color: var(--muted);
  font-size: 12px;
}

.site-nav {
  display: flex;
  gap: 24px;
  align-items: center;
  color: #24384f;
  font-size: 15px;
}

.site-nav a:hover {
  color: var(--primary);
}

.nav-toggle {
  display: none;
}

.hero {
  padding: 76px 0 70px;
  background:
    radial-gradient(circle at 12% 12%, rgba(13, 124, 102, 0.15), transparent 32%),
    linear-gradient(135deg, #effaf7 0%, #f6f8fb 58%, #fff7e9 100%);
  overflow: hidden;
}

.hero-grid,
.two-col {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
  gap: 34px;
  align-items: center;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--primary);
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 760px;
  margin-bottom: 20px;
  font-size: clamp(34px, 5vw, 58px);
  line-height: 1.1;
  letter-spacing: -0.04em;
}

h2 {
  margin-bottom: 12px;
  font-size: clamp(26px, 3vw, 40px);
  line-height: 1.18;
  letter-spacing: -0.03em;
}

h3 {
  margin-bottom: 8px;
  font-size: 19px;
}

.hero-lead,
.section-intro,
.section-head p {
  color: var(--muted);
  font-size: 17px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 28px 0 26px;
}

.btn {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  padding: 0 20px;
  border: 0;
  border-radius: 999px;
  cursor: pointer;
  font-weight: 700;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn.primary {
  color: #fff;
  background: var(--primary);
  box-shadow: 0 12px 24px rgba(13, 124, 102, 0.22);
}

.btn.primary:hover {
  background: var(--primary-dark);
}

.btn.secondary {
  color: var(--primary);
  background: #fff;
  border: 1px solid rgba(13, 124, 102, 0.18);
}

.trust-list {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.trust-list span {
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(221, 229, 239, 0.9);
}

.hero-card,
.vote-card,
.form-card,
.rank-item,
.brand-card,
.article-grid article,
.award-list div {
  background: var(--card);
  border: 1px solid rgba(221, 229, 239, 0.9);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero-card {
  padding: 28px;
}

.hero-media {
  position: relative;
}

.hero-media img {
  display: block;
  width: 100%;
  border-radius: 30px;
  box-shadow: 0 28px 70px rgba(15, 35, 60, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.8);
}

.hero-media::before {
  content: "";
  position: absolute;
  inset: -24px -20px auto auto;
  width: 150px;
  height: 150px;
  border-radius: 50%;
  background: rgba(255, 178, 63, 0.26);
  z-index: -1;
}

.hero-media-card {
  position: absolute;
  left: 22px;
  right: 22px;
  bottom: 22px;
  padding: 18px;
  color: #fff;
  border-radius: 20px;
  background: rgba(13, 27, 42, 0.78);
  backdrop-filter: blur(12px);
  box-shadow: 0 18px 35px rgba(13, 27, 42, 0.22);
}

.hero-media-card strong,
.hero-media-card span {
  display: block;
}

.hero-media-card strong {
  margin-bottom: 4px;
  font-size: 18px;
}

.hero-media-card span {
  color: rgba(255, 255, 255, 0.78);
  font-size: 14px;
}

.hero-card ul,
.check-list {
  padding-left: 20px;
  color: var(--muted);
}

.text-link {
  color: var(--primary);
  font-weight: 800;
}

.notice-bar {
  padding: 14px 0;
  color: #5a3900;
  background: #fff3d6;
  border-top: 1px solid #ffe0a0;
  border-bottom: 1px solid #ffe0a0;
}

.section {
  padding: 72px 0;
}

.visual-section {
  background:
    linear-gradient(180deg, #ffffff 0%, #f6f8fb 100%);
}

.section.muted {
  background: #eef3f8;
}

.section.dark {
  color: #fff;
  background:
    radial-gradient(circle at 80% 20%, rgba(13, 124, 102, 0.55), transparent 28%),
    var(--dark);
}

.section.dark .eyebrow,
.section.dark .section-intro {
  color: #b8f1e3;
}

.section-head {
  display: flex;
  gap: 24px;
  align-items: end;
  justify-content: space-between;
  margin-bottom: 28px;
}

.section-head p {
  max-width: 530px;
  margin-bottom: 0;
}

.score-rule {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 22px;
}

.score-rule span {
  padding: 8px 12px;
  color: #244054;
  background: #e8f5f1;
  border-radius: 999px;
  font-size: 14px;
}

.rank-list {
  display: grid;
  gap: 14px;
}

.rank-item {
  display: grid;
  grid-template-columns: 60px 1fr 155px 150px;
  gap: 18px;
  align-items: center;
  padding: 18px;
}

.rank-no {
  display: grid;
  width: 48px;
  height: 48px;
  place-items: center;
  border-radius: 14px;
  color: #fff;
  background: var(--primary);
  font-weight: 900;
  font-size: 20px;
}

.rank-title strong {
  display: block;
  font-size: 19px;
}

.rank-title span,
.brand-meta,
.small-note,
.form-tip,
.rank-tags {
  color: var(--muted);
  font-size: 14px;
}

.rank-score {
  text-align: right;
}

.rank-score strong {
  display: block;
  color: var(--primary);
  font-size: 28px;
  line-height: 1;
}

.rank-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: flex-end;
}

.rank-tags span,
.brand-tag,
.article-grid span {
  padding: 4px 8px;
  border-radius: 999px;
  background: #f0f4f8;
}

.filter-panel {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-bottom: 24px;
  padding: 18px;
  background: #fff;
  border-radius: var(--radius);
  border: 1px solid var(--line);
}

label {
  display: grid;
  gap: 8px;
  color: #31445a;
  font-weight: 700;
  font-size: 14px;
}

label.consent {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: var(--muted);
  font-weight: 500;
  line-height: 1.5;
}

label.consent input {
  width: auto;
  min-height: auto;
  margin-top: 4px;
}

input,
select {
  width: 100%;
  min-height: 44px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 12px;
  color: var(--text);
  background: #fff;
  font: inherit;
}

input:focus,
select:focus {
  border-color: var(--primary);
  outline: 3px solid rgba(13, 124, 102, 0.12);
}

.brand-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.brand-card {
  padding: 20px;
}

.brand-logo {
  display: grid;
  width: 54px;
  height: 54px;
  margin-bottom: 16px;
  place-items: center;
  border-radius: 16px;
  color: #fff;
  background: linear-gradient(135deg, var(--primary), #55c0a9);
  font-weight: 900;
  font-size: 22px;
}

.brand-card p {
  color: var(--muted);
}

.brand-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.vote-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(420px, 1.1fr);
  gap: 28px;
  align-items: start;
}

.vote-intro {
  position: sticky;
  top: 96px;
}

.vote-card,
.form-card {
  padding: 24px;
}

.vote-card-title {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: start;
  margin-bottom: 18px;
}

.vote-card-title span {
  color: var(--primary);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

.vote-card-title h3 {
  margin-bottom: 0;
  font-size: 28px;
}

.vote-card-title a {
  padding: 7px 11px;
  border-radius: 999px;
  color: var(--primary);
  background: #e8f5f1;
  font-size: 13px;
  font-weight: 800;
}

.vote-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin: 22px 0;
}

.vote-stats span {
  padding: 14px;
  border-radius: 16px;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: 0 10px 24px rgba(15, 35, 60, 0.06);
  color: var(--muted);
  font-size: 13px;
}

.vote-stats strong {
  display: block;
  color: var(--primary);
  font-size: 24px;
  line-height: 1.1;
}

.vote-option {
  display: grid;
  gap: 12px;
  margin-bottom: 14px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background:
    radial-gradient(circle at 92% 18%, rgba(13, 124, 102, 0.09), transparent 30%),
    #fff;
  box-shadow: 0 12px 28px rgba(15, 35, 60, 0.06);
}

.vote-option-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  font-weight: 800;
}

.vote-option h4 {
  margin: 0;
  font-size: 19px;
}

.vote-option p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.vote-category {
  display: inline-flex;
  padding: 5px 9px;
  border-radius: 999px;
  color: #075c4b;
  background: #e8f5f1;
  font-size: 12px;
}

.vote-progress {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
}

.vote-progress small {
  color: var(--muted);
  white-space: nowrap;
}

.bar {
  height: 10px;
  overflow: hidden;
  background: #e9eef4;
  border-radius: 999px;
}

.bar span {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--accent));
}

.vote-rule-card {
  margin-top: 18px;
  padding: 20px;
  border-radius: var(--radius);
  background: #0d1b2a;
  color: #fff;
}

.vote-rule-card p {
  color: rgba(255, 255, 255, 0.78);
}

.vote-rule-card .text-link {
  color: #9eead8;
}

.award-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 24px;
}

.award-list div {
  padding: 18px;
  box-shadow: none;
}

.article-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.article-grid article {
  padding: 20px;
  box-shadow: none;
}

.article-grid span {
  display: inline-flex;
  margin-bottom: 14px;
  color: var(--primary);
  font-weight: 800;
  background: #e8f5f1;
}

.visual-grid {
  display: grid;
  grid-template-columns: 1.18fr 0.82fr;
  grid-template-rows: repeat(2, 1fr);
  gap: 18px;
}

.visual-card {
  position: relative;
  display: grid;
  min-height: 260px;
  overflow: hidden;
  border-radius: 28px;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  isolation: isolate;
}

.visual-card.large {
  grid-row: span 2;
  min-height: 540px;
}

.visual-card img {
  width: 100%;
  height: 100%;
  min-height: 260px;
  object-fit: cover;
  transition: transform 0.35s ease;
}

.visual-card:hover img {
  transform: scale(1.035);
}

.visual-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(13, 27, 42, 0.05) 25%, rgba(13, 27, 42, 0.82) 100%);
  z-index: 1;
}

.visual-card > div {
  position: absolute;
  left: 24px;
  right: 24px;
  bottom: 22px;
  z-index: 2;
  color: #fff;
}

.visual-card span {
  display: inline-flex;
  margin-bottom: 10px;
  padding: 5px 10px;
  border-radius: 999px;
  color: #083d33;
  background: rgba(255, 255, 255, 0.86);
  font-size: 13px;
  font-weight: 800;
}

.visual-card h3 {
  margin-bottom: 6px;
  font-size: 24px;
}

.visual-card p {
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.78);
}

.seo-link-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.seo-link-card {
  display: block;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.seo-link-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.seo-link-card strong {
  display: block;
  margin-bottom: 6px;
  color: var(--text);
}

.seo-link-card span {
  display: block;
  color: var(--muted);
  font-size: 14px;
}

.content-page {
  padding: 54px 0 76px;
}

.breadcrumb {
  margin-bottom: 18px;
  color: var(--muted);
  font-size: 14px;
}

.breadcrumb a {
  color: var(--primary);
  font-weight: 700;
}

.seo-hero {
  padding: 42px;
  border-radius: 28px;
  background:
    radial-gradient(circle at 10% 20%, rgba(13, 124, 102, 0.14), transparent 34%),
    linear-gradient(135deg, #ffffff 0%, #eefaf6 100%);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.seo-hero h1 {
  max-width: 900px;
  font-size: clamp(32px, 4vw, 52px);
}

.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 290px;
  gap: 28px;
  align-items: start;
  margin-top: 28px;
}

.article-body,
.toc-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.article-body {
  padding: 30px;
}

.article-body h2 {
  margin-top: 32px;
  font-size: 28px;
}

.article-body h2:first-child {
  margin-top: 0;
}

.article-body p,
.article-body li {
  color: #34465c;
}

.article-visual {
  margin: 22px 0 28px;
  overflow: hidden;
  border-radius: 24px;
  border: 1px solid var(--line);
  background: #fff;
  box-shadow: var(--shadow);
}

.article-visual img {
  display: block;
  width: 100%;
  max-height: 360px;
  object-fit: cover;
}

.article-visual figcaption {
  padding: 12px 16px;
  color: var(--muted);
  font-size: 14px;
}

.visual-pair {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin: 22px 0;
}

.visual-pair .article-visual {
  margin: 0;
}

.toc-card {
  position: sticky;
  top: 96px;
  padding: 20px;
}

.toc-card a {
  display: block;
  padding: 8px 0;
  color: var(--primary);
  font-weight: 700;
  border-bottom: 1px solid #eef3f8;
}

.seo-table {
  width: 100%;
  margin: 18px 0;
  border-collapse: collapse;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 14px;
}

.seo-table th,
.seo-table td {
  padding: 12px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.seo-table th {
  background: #eef5f3;
}

.faq-list details {
  margin-bottom: 12px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #f8fafc;
}

.faq-list summary {
  cursor: pointer;
  font-weight: 800;
  color: var(--text);
}

.related-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.related-links a {
  padding: 8px 12px;
  color: var(--primary);
  border: 1px solid rgba(13, 124, 102, 0.18);
  border-radius: 999px;
  background: #f3fbf8;
  font-weight: 700;
}

.form-card {
  display: grid;
  gap: 14px;
}

.form-card.light {
  color: var(--text);
}

.price-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin-top: 24px;
}

.price-grid div {
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.08);
}

.price-grid strong,
.price-grid span {
  display: block;
}

.price-grid strong {
  font-size: 20px;
}

.price-grid span {
  color: #c6d8e8;
}

.disclaimer {
  padding-top: 42px;
  padding-bottom: 42px;
}

/* ========== 采购流程 3 步走 ========== */
.process-section {
  background: linear-gradient(180deg, #ffffff 0%, #f6f8fb 100%);
}
.process-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.process-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  color: inherit;
}
.process-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 24px 48px rgba(15, 35, 60, 0.14);
}
.process-card .process-no {
  position: absolute;
  top: 22px;
  right: 22px;
  color: rgba(13, 124, 102, 0.18);
  font-size: 36px;
  font-weight: 900;
  letter-spacing: -0.04em;
}
.process-card img {
  width: 100%;
  height: 160px;
  object-fit: cover;
  border-radius: 14px;
  background: #eef5f3;
  margin-bottom: 16px;
}
.process-card h3 {
  margin-bottom: 6px;
}
.process-card p {
  flex: 1;
  margin-bottom: 12px;
  color: var(--muted);
  font-size: 14px;
}
.process-card em {
  font-style: normal;
  color: var(--primary);
  font-weight: 800;
}

/* ========== 风量计算器 ========== */
.calc-card {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: 22px;
  padding: 24px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.calc-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.calc-form label {
  font-weight: 600;
}
.calc-form button {
  grid-column: span 2;
}
.calc-result {
  padding: 18px;
  border-radius: 14px;
  background: #f3fbf8;
  border: 1px dashed rgba(13, 124, 102, 0.32);
  min-height: 200px;
}
.calc-tip {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}
.calc-tip.warn {
  color: #b54708;
}
.calc-card-result {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 12px;
}
.calc-card-result div {
  padding: 12px;
  border-radius: 12px;
  background: #fff;
  border: 1px solid var(--line);
}
.calc-card-result span {
  display: block;
  color: var(--muted);
  font-size: 12px;
}
.calc-card-result strong {
  display: block;
  margin-top: 4px;
  color: var(--primary);
  font-size: 18px;
}

/* ========== 品牌卡片按钮 / 统计 ========== */
.brand-actions {
  display: flex;
  gap: 8px;
  margin-top: 14px;
}
.btn.small {
  min-height: 38px;
  padding: 0 14px;
  font-size: 14px;
}
.btn.ghost {
  background: #fff;
  color: var(--text);
  border: 1px solid var(--line);
}
.btn.ghost:hover {
  border-color: var(--primary);
  color: var(--primary);
}
.filter-stat {
  margin: -6px 0 18px;
  color: var(--muted);
  font-size: 13px;
}

.disclaimer .container {
  padding: 24px;
  border-left: 5px solid var(--accent);
  border-radius: var(--radius);
  background: #fff;
}

.site-footer {
  padding: 34px 0;
  color: #c6d8e8;
  background: #091421;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 0.7fr 1fr;
  gap: 24px;
}

.site-footer a {
  display: block;
  margin-bottom: 8px;
}

@media (max-width: 900px) {
  .hero-grid,
  .two-col,
  .vote-layout,
  .section-head,
  .rank-item,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .section-head {
    align-items: start;
  }

  .rank-score,
  .rank-tags {
    text-align: left;
    justify-content: flex-start;
  }

  .brand-grid,
  .article-grid,
  .award-list,
  .visual-grid,
  .seo-link-grid,
  .filter-panel {
    grid-template-columns: 1fr 1fr;
  }

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

  .calc-card,
  .calc-form,
  .calc-card-result {
    grid-template-columns: 1fr;
  }

  .visual-card.large {
    grid-row: span 1;
    min-height: 300px;
  }

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

  .toc-card {
    position: static;
  }

  .vote-intro {
    position: static;
  }


  .visual-pair {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .nav-toggle {
    display: inline-flex;
    padding: 8px 12px;
    border: 1px solid var(--line);
    border-radius: 10px;
    background: #fff;
  }

  .site-nav {
    position: absolute;
    top: 74px;
    left: 16px;
    right: 16px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 14px;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 16px;
    box-shadow: var(--shadow);
  }

  .site-nav.open {
    display: flex;
  }

  .hero {
    padding-top: 48px;
  }

  .vote-stats,
  .vote-progress {
    grid-template-columns: 1fr;
  }

  .brand-grid,
  .article-grid,
  .award-list,
  .visual-grid,
  .seo-link-grid,
  .filter-panel,
  .price-grid {
    grid-template-columns: 1fr;
  }

  .seo-hero,
  .article-body {
    padding: 22px;
  }
}