/* ==========================================================================
   base
   ========================================================================== */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: #2b3a42;
  background-color: #f4efe6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 600;
  color: #123b4f;
  margin: 0 0 0.5em;
  line-height: 1.3;
}

p {
  margin: 0 0 1em;
}

ul,
ol {
  margin: 0;
  padding: 0;
}

li {
  list-style: none;
}

a {
  color: #0e7c7b;
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: #0a5f5e;
  text-decoration: underline;
}

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

figure {
  margin: 0;
}

button {
  font-family: inherit;
  font-size: inherit;
  cursor: pointer;
  border: none;
  background: none;
  padding: 0;
}

table {
  width: 100%;
  border-collapse: collapse;
}

strong {
  font-weight: 600;
}

/* ==========================================================================
   layout
   ========================================================================== */

.site-header {
  background-color: #123b4f;
  border-bottom: 3px solid #e06a45;
}

.header-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
}

.brand {
  display: flex;
  align-items: center;
  color: #ffffff;
  text-decoration: none;
  flex-shrink: 0;
}

.brand:hover {
  color: #f7b955;
  text-decoration: none;
}

.brand-name {
  font-size: 20px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 16px;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 6px;
}

.nav-toggle-icon {
  display: block;
  width: 20px;
  height: 2px;
  background-color: #ffffff;
  position: relative;
}

.nav-toggle-icon::before,
.nav-toggle-icon::after {
  content: "";
  position: absolute;
  left: 0;
  width: 20px;
  height: 2px;
  background-color: #ffffff;
}

.nav-toggle-icon::before {
  top: -6px;
}

.nav-toggle-icon::after {
  top: 6px;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 2px;
  margin: 0;
  padding: 0;
}

.nav-list li {
  list-style: none;
}

.nav-list a {
  display: block;
  padding: 8px 12px;
  color: rgba(255, 255, 255, 0.85);
  font-size: 14px;
  font-weight: 400;
  border-radius: 4px;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.nav-list a:hover {
  color: #ffffff;
  background-color: rgba(255, 255, 255, 0.12);
  text-decoration: none;
}

.nav-list a.is-current {
  color: #ffffff;
  background-color: rgba(255, 255, 255, 0.18);
  font-weight: 600;
}

.tool-entry {
  display: inline-block;
  padding: 8px 16px;
  background-color: #e06a45;
  color: #ffffff;
  font-size: 14px;
  font-weight: 500;
  border-radius: 4px;
  white-space: nowrap;
  transition: background-color 0.2s ease;
}

.tool-entry:hover {
  background-color: #c95a38;
  color: #ffffff;
  text-decoration: none;
}

.tool-entry.is-current {
  background-color: #f7b955;
  color: #123b4f;
}

.site-main {
  min-height: 60vh;
}

.inner-main {
  max-width: 1180px;
  margin: 0 auto;
  padding: 32px 24px 64px;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: #5a6b74;
  margin-bottom: 16px;
}

.breadcrumb a {
  color: #0e7c7b;
}

.breadcrumb a:hover {
  text-decoration: underline;
}

.breadcrumb-sep {
  color: #9aa8af;
}

.breadcrumb-current {
  color: #5a6b74;
  font-weight: 500;
}

.page-header {
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid #d9d2c4;
}

.page-title {
  font-size: 30px;
  font-weight: 600;
  color: #123b4f;
  margin: 0 0 12px;
}

.page-description {
  font-size: 16px;
  color: #4a5b64;
  max-width: 760px;
  margin: 0;
}

.page-figure {
  margin-bottom: 32px;
  border-radius: 8px;
  overflow: hidden;
  background-color: #e8e2d6;
}

.page-figure img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.page-figure figcaption {
  padding: 8px 16px;
  font-size: 13px;
  color: #5a6b74;
  background-color: #e8e2d6;
  border-top: 1px solid #d9d2c4;
}

.site-footer {
  background-color: #123b4f;
  color: rgba(255, 255, 255, 0.8);
  padding: 48px 0 24px;
}

.footer-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

.footer-col h2 {
  color: #ffffff;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 12px;
}

.footer-col ul {
  padding: 0;
  margin: 0;
}

.footer-col li {
  list-style: none;
  margin-bottom: 8px;
}

.footer-col a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 14px;
}

.footer-col a:hover {
  color: #f7b955;
  text-decoration: none;
}

.footer-brand {
  grid-column: 1 / -1;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  text-align: center;
}

.footer-brand p {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
  margin: 0 0 4px;
}

.footer-brand .copyright {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.45);
  margin: 0;
}

/* ==========================================================================
   components
   ========================================================================== */

/* --- 通用标题区 --- */

.section-heading {
  margin-bottom: 28px;
}

.section-title {
  font-size: 24px;
  font-weight: 600;
  color: #123b4f;
  margin: 0 0 8px;
}

.section-desc {
  font-size: 15px;
  color: #4a5b64;
  margin: 0;
}

.section-subtitle {
  font-size: 16px;
  font-weight: 600;
  color: #123b4f;
  margin: 0 0 12px;
}

.section-head {
  margin-bottom: 24px;
}

.section-head h2 {
  font-size: 24px;
  font-weight: 600;
  color: #123b4f;
  margin: 0 0 8px;
}

.section-head p {
  font-size: 15px;
  color: #4a5b64;
  margin: 0;
}

.section-intro {
  font-size: 15px;
  color: #4a5b64;
  margin-bottom: 20px;
}

/* --- 首页 hero --- */

.hero-section {
  background-color: #f4efe6;
  padding: 48px 0;
}

.hero-layout {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.hero-title {
  font-size: 32px;
  font-weight: 600;
  color: #123b4f;
  line-height: 1.3;
  margin: 0 0 16px;
}

.hero-intro {
  font-size: 16px;
  color: #4a5b64;
  margin: 0 0 24px;
}

.user-questions {
  background-color: #e8e2d6;
  border-radius: 8px;
  padding: 20px;
  border-left: 4px solid #0e7c7b;
}

.user-questions ul {
  padding: 0;
  margin: 0;
}

.user-questions li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 10px;
  font-size: 15px;
  color: #2b3a42;
}

.user-questions li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: #e06a45;
}

.user-questions li:last-child {
  margin-bottom: 0;
}

.hero-media {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.hero-figure {
  border-radius: 8px;
  overflow: hidden;
  background-color: #e8e2d6;
}

.hero-figure img {
  width: 100%;
  height: 260px;
  object-fit: cover;
}

.hero-figure figcaption {
  padding: 8px 16px;
  font-size: 13px;
  color: #5a6b74;
  background-color: #e8e2d6;
  border-top: 1px solid #d9d2c4;
}

.service-scope {
  background-color: #ffffff;
  border-radius: 8px;
  padding: 20px;
  border: 1px solid #d9d2c4;
}

.scope-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 0;
  margin: 0;
}

.scope-tags li {
  background-color: #f7b955;
  color: #123b4f;
  font-size: 13px;
  font-weight: 500;
  padding: 4px 12px;
  border-radius: 16px;
}

/* --- 首页工作流程 --- */

.workflow-section {
  max-width: 1180px;
  margin: 0 auto;
  padding: 48px 24px;
}

.workflow-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.step-item {
  background-color: #ffffff;
  border-radius: 8px;
  padding: 24px 20px;
  border: 1px solid #d9d2c4;
  position: relative;
}

.step-num {
  display: inline-block;
  font-family: "SF Mono", "Consolas", monospace;
  font-size: 24px;
  font-weight: 600;
  color: #e06a45;
  margin-bottom: 12px;
}

.step-item h3 {
  font-size: 18px;
  font-weight: 600;
  color: #123b4f;
  margin: 0 0 8px;
}

.step-item p {
  font-size: 14px;
  color: #4a5b64;
  margin: 0 0 12px;
}

.step-item a {
  font-size: 14px;
  font-weight: 500;
}

/* --- 首页频道总览 --- */

.channel-overview {
  background-color: #e8e2d6;
  padding: 48px 0;
}

.channel-overview .section-heading {
  max-width: 1180px;
  margin: 0 auto 24px;
  padding: 0 24px;
}

.topic-filter {
  max-width: 1180px;
  margin: 0 auto 24px;
  padding: 0 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.filter-chip {
  padding: 6px 16px;
  background-color: #ffffff;
  border: 1px solid #b8b0a0;
  border-radius: 20px;
  font-size: 14px;
  color: #2b3a42;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.filter-chip:hover {
  border-color: #0e7c7b;
  color: #0e7c7b;
}

.filter-chip.is-active {
  background-color: #0e7c7b;
  border-color: #0e7c7b;
  color: #ffffff;
  font-weight: 500;
}

.channel-list {
  max-width: 1180px;
  margin: 0 auto 24px;
  padding: 0 24px;
}

.channel-row {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 1fr 1fr 0.8fr;
  gap: 12px;
  align-items: center;
  background-color: #ffffff;
  border-radius: 6px;
  padding: 14px 20px;
  margin-bottom: 8px;
  border: 1px solid #d9d2c4;
  font-size: 14px;
}

.channel-name {
  font-weight: 600;
  color: #123b4f;
}

.channel-tag {
  display: inline-block;
  background-color: #e8f2f1;
  color: #0e7c7b;
  font-size: 12px;
  padding: 2px 10px;
  border-radius: 12px;
  width: fit-content;
}

.channel-format {
  color: #4a5b64;
}

.channel-audience {
  color: #4a5b64;
}

.channel-status {
  color: #0e7c7b;
  font-weight: 500;
}

.channel-more {
  max-width: 1180px;
  margin: 0 auto 24px;
  padding: 0 24px;
  text-align: center;
}

.channel-more a {
  font-size: 15px;
  font-weight: 500;
}

.overview-figure {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
  border-radius: 8px;
  overflow: hidden;
}

.overview-figure img {
  width: 100%;
  height: 240px;
  object-fit: cover;
}

.overview-figure figcaption {
  padding: 8px 16px;
  font-size: 13px;
  color: #5a6b74;
  background-color: #ffffff;
  border: 1px solid #d9d2c4;
  border-top: none;
  border-radius: 0 0 8px 8px;
}

/* --- 首页专题片单 --- */

.collections-section {
  max-width: 1180px;
  margin: 0 auto;
  padding: 48px 24px;
}

.collection-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 24px;
}

.collection-card {
  background-color: #ffffff;
  border-radius: 8px;
  padding: 24px;
  border: 1px solid #d9d2c4;
  border-top: 4px solid #0e7c7b;
  display: flex;
  flex-direction: column;
}

.card-code {
  font-family: "SF Mono", "Consolas", monospace;
  font-size: 14px;
  font-weight: 600;
  color: #e06a45;
  margin-bottom: 8px;
}

.collection-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: #123b4f;
  margin: 0 0 12px;
}

.card-reason {
  font-size: 14px;
  color: #4a5b64;
  margin: 0 0 16px;
  flex: 1;
}

.card-order {
  font-size: 13px;
  color: #5a6b74;
  margin-bottom: 12px;
}

.collection-card a {
  font-size: 14px;
  font-weight: 500;
}

.collection-figure {
  border-radius: 8px;
  overflow: hidden;
}

.collection-figure img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.collection-figure figcaption {
  padding: 8px 16px;
  font-size: 13px;
  color: #5a6b74;
  background-color: #e8e2d6;
  border: 1px solid #d9d2c4;
  border-top: none;
}

/* --- 首页 FAQ 摘要 --- */

.faq-summary {
  background-color: #e8e2d6;
  padding: 48px 0;
}

.faq-summary .section-heading {
  max-width: 1180px;
  margin: 0 auto 24px;
  padding: 0 24px;
}

.faq-summary .faq-item {
  max-width: 1180px;
  margin: 0 auto 12px;
  padding: 0 24px;
}

.faq-summary details {
  background-color: #ffffff;
  border-radius: 6px;
  border: 1px solid #d9d2c4;
  padding: 16px 20px;
}

.faq-summary summary {
  font-size: 15px;
  font-weight: 500;
  color: #123b4f;
  cursor: pointer;
  position: relative;
  padding-right: 24px;
}

.faq-summary summary::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 0;
  color: #e06a45;
  font-size: 20px;
  font-weight: 400;
}

.faq-summary details[open] summary::after {
  content: "−";
}

.faq-summary details p {
  font-size: 14px;
  color: #4a5b64;
  margin: 12px 0 0;
  padding-top: 12px;
  border-top: 1px solid #e8e2d6;
}

.faq-more {
  max-width: 1180px;
  margin: 24px auto 0;
  padding: 0 24px;
  text-align: center;
}

.faq-more a {
  font-size: 15px;
  font-weight: 500;
}

/* --- 相关链接 --- */

.related-links {
  max-width: 1180px;
  margin: 0 auto;
  padding: 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.related-links-label {
  font-size: 14px;
  font-weight: 600;
  color: #123b4f;
}

.related-links-item {
  display: inline-block;
  padding: 6px 16px;
  background-color: #ffffff;
  border: 1px solid #d9d2c4;
  border-radius: 20px;
  font-size: 14px;
  color: #0e7c7b;
  transition: border-color 0.2s ease;
}

.related-links-item:hover {
  border-color: #0e7c7b;
  text-decoration: none;
}

/* --- 频道导览页 --- */

.topic-index {
  margin-bottom: 40px;
  padding: 24px;
  background-color: #ffffff;
  border-radius: 8px;
  border: 1px solid #d9d2c4;
}

.topic-index h2 {
  font-size: 22px;
  font-weight: 600;
  color: #123b4f;
  margin: 0 0 8px;
}

.topic-index p {
  font-size: 14px;
  color: #4a5b64;
  margin: 0 0 16px;
}

.topic-anchor-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 0;
  margin: 0;
}

.topic-anchor-list li {
  margin: 0;
}

.topic-anchor-list a {
  display: inline-block;
  padding: 6px 16px;
  background-color: #e8f2f1;
  border: 1px solid #b8d8d6;
  border-radius: 20px;
  font-size: 14px;
  color: #0e7c7b;
  transition: background-color 0.2s ease;
}

.topic-anchor-list a:hover {
  background-color: #d5e8e7;
  text-decoration: none;
}

.topic-list {
  margin-bottom: 40px;
}

.topic-list > h2 {
  font-size: 22px;
  font-weight: 600;
  color: #123b4f;
  margin: 0 0 8px;
}

.topic-list > p {
  font-size: 14px;
  color: #4a5b64;
  margin: 0 0 24px;
}

.topic-block {
  margin-bottom: 32px;
  padding: 24px;
  background-color: #ffffff;
  border-radius: 8px;
  border: 1px solid #d9d2c4;
  border-left: 4px solid #0e7c7b;
}

.topic-block h3 {
  font-size: 18px;
  font-weight: 600;
  color: #123b4f;
  margin: 0 0 8px;
}

.topic-block > p {
  font-size: 14px;
  color: #4a5b64;
  margin: 0 0 16px;
}

.channel-row-list {
  padding: 0;
  margin: 0;
}

.channel-row-list .channel-row {
  grid-template-columns: 1fr 1.4fr 1fr;
}

/* --- 入口核验 --- */

.check-card {
  background-color: #ffffff;
  border-radius: 8px;
  padding: 24px;
  border: 1px solid #d9d2c4;
  border-top: 4px solid #e06a45;
  margin-bottom: 40px;
}

.check-card h2 {
  font-size: 22px;
  font-weight: 600;
  color: #123b4f;
  margin: 0 0 8px;
}

.check-card > p {
  font-size: 14px;
  color: #4a5b64;
  margin: 0 0 20px;
}

.check-question-list {
  padding: 0;
  margin: 0 0 20px;
}

.check-question {
  padding: 16px 0;
  border-bottom: 1px solid #e8e2d6;
}

.check-question:last-child {
  border-bottom: none;
}

.check-question h3 {
  font-size: 16px;
  font-weight: 600;
  color: #123b4f;
  margin: 0 0 8px;
  padding-left: 28px;
  position: relative;
}

.check-question h3::before {
  content: "?";
  position: absolute;
  left: 0;
  top: 0;
  width: 20px;
  height: 20px;
  background-color: #f7b955;
  color: #123b4f;
  border-radius: 50%;
  font-size: 13px;
  font-weight: 600;
  text-align: center;
  line-height: 20px;
}

.check-question p {
  font-size: 14px;
  color: #4a5b64;
  margin: 0;
  padding-left: 28px;
}

.check-card-note {
  font-size: 14px;
  color: #5a6b74;
  margin: 0;
  padding: 12px;
  background-color: #f7f3ea;
  border-radius: 6px;
}

.check-card-note a {
  font-weight: 500;
}

/* --- 内页相关链接 --- */

.related-links h2 {
  font-size: 22px;
  font-weight: 600;
  color: #123b4f;
  margin: 0 0 8px;
}

.related-links > p {
  font-size: 14px;
  color: #4a5b64;
  margin: 0 0 16px;
}

.related-link-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 0;
  margin: 0;
}

.related-link-list li {
  margin: 0;
}

.related-link-list a {
  display: inline-block;
  padding: 6px 16px;
  background-color: #e8f2f1;
  border: 1px solid #b8d8d6;
  border-radius: 20px;
  font-size: 14px;
  color: #0e7c7b;
}

.related-link-list a:hover {
  background-color: #d5e8e7;
  text-decoration: none;
}

/* --- 专题片单页 --- */

.collection-featured {
  margin-bottom: 48px;
}

.collection-featured .section-title {
  margin-bottom: 20px;
}

.featured-card {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 24px;
  background-color: #ffffff;
  border-radius: 8px;
  border: 1px solid #d9d2c4;
  overflow: hidden;
}

.featured-media {
  min-height: 280px;
}

.featured-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.featured-content {
  padding: 24px;
}

.card-tag {
  display: inline-block;
  background-color: #e06a45;
  color: #ffffff;
  font-size: 13px;
  font-weight: 500;
  padding: 4px 12px;
  border-radius: 4px;
  margin-bottom: 16px;
}

.featured-content .card-reason {
  margin-bottom: 16px;
}

.featured-content .card-order {
  margin-bottom: 12px;
}

.order-list {
  padding: 0;
  margin: 0;
}

.order-list li {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 6px 0;
  font-size: 14px;
  color: #2b3a42;
  border-bottom: 1px dashed #e8e2d6;
}

.order-list li:last-child {
  border-bottom: none;
}

.order-num {
  font-family: "SF Mono", "Consolas", monospace;
  font-size: 13px;
  font-weight: 600;
  color: #e06a45;
  flex-shrink: 0;
  width: 28px;
}

/* --- 片单网格 --- */

.collection-grid {
  margin-bottom: 48px;
}

.grid-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.grid-item {
  background-color: #ffffff;
  border-radius: 8px;
  padding: 24px;
  border: 1px solid #d9d2c4;
  border-top: 4px solid #f7b955;
}

.item-title {
  font-size: 18px;
  font-weight: 600;
  color: #123b4f;
  margin: 0 0 12px;
}

.item-desc {
  font-size: 14px;
  color: #4a5b64;
  margin: 0 0 16px;
}

.item-time {
  font-size: 13px;
  color: #5a6b74;
  margin: 0;
  padding-top: 12px;
  border-top: 1px solid #e8e2d6;
}

/* --- 片单使用步骤 --- */

.use-steps {
  margin-bottom: 48px;
  padding: 32px;
  background-color: #e8e2d6;
  border-radius: 8px;
}

.steps-layout {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 32px;
  align-items: center;
}

.steps-list {
  padding: 0;
  margin: 0;
}

.steps-list .step-item {
  display: flex;
  gap: 16px;
  background: none;
  border: none;
  padding: 16px 0;
  border-bottom: 1px solid #d9d2c4;
}

.steps-list .step-item:last-child {
  border-bottom: none;
}

.step-text h3 {
  font-size: 17px;
  font-weight: 600;
  color: #123b4f;
  margin: 0 0 6px;
}

.step-text p {
  font-size: 14px;
  color: #4a5b64;
  margin: 0;
}

.steps-media {
  border-radius: 8px;
  overflow: hidden;
}

.steps-media img {
  width: 100%;
  height: 260px;
  object-fit: cover;
}

/* --- 入站指引页 --- */

.current-task {
  margin-bottom: 40px;
}

.task-card {
  background-color: #ffffff;
  border-radius: 8px;
  padding: 32px;
  border: 1px solid #d9d2c4;
  border-left: 6px solid #e06a45;
  position: relative;
}

.task-badge {
  display: inline-block;
  background-color: #e06a45;
  color: #ffffff;
  font-size: 13px;
  font-weight: 500;
  padding: 4px 12px;
  border-radius: 4px;
  margin-bottom: 16px;
}

.task-card h2 {
  font-size: 22px;
  font-weight: 600;
  color: #123b4f;
  margin: 0 0 16px;
}

.task-card p {
  font-size: 15px;
  color: #4a5b64;
  margin: 0 0 12px;
}

.task-card p:last-child {
  margin-bottom: 0;
}

.step-nav {
  margin-bottom: 48px;
}

.step-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.step-list .step-item {
  display: flex;
  gap: 16px;
  background-color: #ffffff;
  border: 1px solid #d9d2c4;
  border-radius: 8px;
  padding: 24px;
}

.step-number {
  font-family: "SF Mono", "Consolas", monospace;
  font-size: 24px;
  font-weight: 600;
  color: #e06a45;
  flex-shrink: 0;
  line-height: 1.2;
}

.step-content h3 {
  font-size: 17px;
  font-weight: 600;
  color: #123b4f;
  margin: 0 0 8px;
}

.step-content p {
  font-size: 14px;
  color: #4a5b64;
  margin: 0 0 8px;
}

.step-content .step-result {
  font-size: 13px;
  color: #0e7c7b;
  background-color: #e8f2f1;
  padding: 6px 12px;
  border-radius: 4px;
  display: inline-block;
  margin: 0;
}

/* --- 示例结果 --- */

.example-result {
  margin-bottom: 48px;
}

.example-layout {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 24px;
  align-items: start;
}

.example-media {
  border-radius: 8px;
  overflow: hidden;
}

.example-figure img {
  width: 100%;
  height: 240px;
  object-fit: cover;
}

.example-figure figcaption {
  padding: 8px 16px;
  font-size: 13px;
  color: #5a6b74;
  background-color: #e8e2d6;
  border: 1px solid #d9d2c4;
  border-top: none;
}

.example-table-wrap {
  background-color: #ffffff;
  border-radius: 8px;
  border: 1px solid #d9d2c4;
  overflow: hidden;
}

.example-table {
  width: 100%;
}

.example-table thead th {
  background-color: #123b4f;
  color: #ffffff;
  font-size: 14px;
  font-weight: 500;
  text-align: left;
  padding: 12px 16px;
}

.example-table tbody td {
  padding: 12px 16px;
  font-size: 14px;
  color: #2b3a42;
  border-bottom: 1px solid #e8e2d6;
}

.example-table tbody tr:last-child td {
  border-bottom: none;
}

/* --- 检查提示 --- */

.check-tips {
  margin-bottom: 48px;
}

.tips-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.tip-item {
  background-color: #ffffff;
  border-radius: 8px;
  padding: 24px;
  border: 1px solid #d9d2c4;
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.tip-icon {
  font-size: 20px;
  color: #e06a45;
  flex-shrink: 0;
  line-height: 1.4;
}

.tip-content h3 {
  font-size: 16px;
  font-weight: 600;
  color: #123b4f;
  margin: 0 0 8px;
}

.tip-content p {
  font-size: 14px;
  color: #4a5b64;
  margin: 0;
}

/* --- 相关入口 --- */

.next-links {
  margin-bottom: 48px;
  padding: 24px;
  background-color: #e8e2d6;
  border-radius: 8px;
}

.next-links h2 {
  font-size: 22px;
  font-weight: 600;
  color: #123b4f;
  margin: 0 0 8px;
}

.next-links > p {
  font-size: 14px;
  color: #4a5b64;
  margin: 0 0 16px;
}

.next-link-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  padding: 0;
  margin: 0;
}

.next-link-list li {
  margin: 0;
}

.next-link-list a {
  display: inline-block;
  padding: 8px 20px;
  background-color: #ffffff;
  border: 1px solid #d9d2c4;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  color: #0e7c7b;
}

.next-link-list a:hover {
  border-color: #0e7c7b;
  text-decoration: none;
}

/* --- 功能说明页 --- */

.feature-nav {
  margin-bottom: 40px;
}

.feature-index-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 0;
  margin: 0;
}

.feature-index-list li {
  margin: 0;
}

.feature-index-list a {
  display: inline-block;
  padding: 6px 16px;
  background-color: #ffffff;
  border: 1px solid #d9d2c4;
  border-radius: 20px;
  font-size: 14px;
  color: #0e7c7b;
  transition: border-color 0.2s ease;
}

.feature-index-list a:hover {
  border-color: #0e7c7b;
  text-decoration: none;
}

.feature-block {
  margin-bottom: 48px;
  padding: 32px;
  background-color: #ffffff;
  border-radius: 8px;
  border: 1px solid #d9d2c4;
  border-left: 4px solid #0e7c7b;
}

.feature-intro {
  font-size: 15px;
  color: #4a5b64;
  margin-bottom: 24px;
}

.feature-detail {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr;
  gap: 32px;
  align-items: start;
}

.feature-text h3 {
  font-size: 16px;
  font-weight: 600;
  color: #123b4f;
  margin: 0 0 8px;
}

.feature-text p {
  font-size: 14px;
  color: #4a5b64;
  margin: 0 0 16px;
}

.feature-media {
  border-radius: 8px;
  overflow: hidden;
}

.feature-media img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.feature-media figcaption {
  padding: 8px 12px;
  font-size: 13px;
  color: #5a6b74;
  background-color: #e8e2d6;
}

.feature-note {
  background-color: #f7f3ea;
  border-radius: 8px;
  padding: 20px;
  border: 1px solid #e8e2d6;
}

.feature-note h3 {
  font-size: 15px;
  font-weight: 600;
  color: #123b4f;
  margin: 0 0 12px;
}

.feature-note p {
  font-size: 14px;
  color: #4a5b64;
  margin: 0;
}

.feature-field-list {
  padding: 0;
  margin: 0;
}

.feature-field-list li {
  padding: 6px 0;
  font-size: 14px;
  color: #2b3a42;
  border-bottom: 1px dashed #d9d2c4;
}

.feature-field-list li:last-child {
  border-bottom: none;
}

.feature-field-list strong {
  color: #123b4f;
  margin-right: 6px;
}

.feature-check-list {
  padding: 0;
  margin: 0 0 16px;
}

.feature-check-list li {
  padding: 6px 0;
  font-size: 14px;
  color: #2b3a42;
}

.feature-check-list strong {
  color: #123b4f;
}

.feature-prep-list {
  padding: 0;
  margin: 0 0 16px;
}

.feature-prep-list li {
  padding: 6px 0;
  font-size: 14px;
  color: #2b3a42;
}

/* --- 偏好记录 --- */

.preference-note {
  margin-bottom: 48px;
  padding: 32px;
  background-color: #e8e2d6;
  border-radius: 8px;
}

.preference-content p {
  font-size: 14px;
  color: #4a5b64;
  margin: 0 0 16px;
}

.preference-list {
  padding: 0;
  margin: 0 0 16px;
}

.preference-list li {
  padding: 6px 0;
  font-size: 14px;
  color: #2b3a42;
  position: relative;
  padding-left: 20px;
}

.preference-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: #0e7c7b;
}

/* --- 问题排查页 --- */

.problem-categories {
  margin-bottom: 48px;
}

.problem-categories > h2 {
  font-size: 22px;
  font-weight: 600;
  color: #123b4f;
  margin: 0 0 8px;
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.category-card {
  background-color: #ffffff;
  border-radius: 8px;
  padding: 24px;
  border: 1px solid #d9d2c4;
  border-top: 4px solid #f7b955;
}

.category-card h3 {
  font-size: 17px;
  font-weight: 600;
  color: #123b4f;
  margin: 0 0 8px;
}

.category-symptom {
  font-size: 14px;
  color: #4a5b64;
  margin: 0 0 12px;
}

.category-note {
  font-size: 13px;
  color: #5a6b74;
  margin: 0;
  padding-top: 12px;
  border-top: 1px solid #e8e2d6;
}

.self-help {
  margin-bottom: 48px;
}

.self-help > h2 {
  font-size: 22px;
  font-weight: 600;
  color: #123b4f;
  margin: 0 0 8px;
}

.help-block {
  background-color: #ffffff;
  border-radius: 8px;
  padding: 24px;
  border: 1px solid #d9d2c4;
  margin-bottom: 16px;
}

.help-block h3 {
  font-size: 17px;
  font-weight: 600;
  color: #123b4f;
  margin: 0 0 12px;
  padding-left: 24px;
  position: relative;
}

.help-block h3::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 14px;
  height: 14px;
  border-radius: 4px;
  background-color: #e06a45;
}

.help-steps {
  padding: 0;
  margin: 0;
}

.help-steps li {
  position: relative;
  padding: 6px 0 6px 32px;
  font-size: 14px;
  color: #2b3a42;
}

.help-steps li::before {
  content: attr(data-step);
  position: absolute;
  left: 0;
  top: 6px;
  width: 22px;
  height: 22px;
  background-color: #e8f2f1;
  color: #0e7c7b;
  border-radius: 50%;
  font-size: 12px;
  font-weight: 600;
  text-align: center;
  line-height: 22px;
}

/* --- 服务路径 --- */

.service-path {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 32px;
  align-items: center;
  background-color: #ffffff;
  border-radius: 8px;
  padding: 32px;
  border: 1px solid #d9d2c4;
}

.path-media {
  border-radius: 8px;
  overflow: hidden;
}

.path-media img {
  width: 100%;
  height: 240px;
  object-fit: cover;
}

.path-content h2 {
  font-size: 22px;
  font-weight: 600;
  color: #123b4f;
  margin: 0 0 8px;
}

.path-steps {
  padding: 0;
  margin: 0 0 16px;
}

.path-steps li {
  padding: 8px 0;
  font-size: 14px;
  color: #2b3a42;
  border-bottom: 1px dashed #e8e2d6;
}

.path-steps li:last-child {
  border-bottom: none;
}

.path-steps a {
  font-weight: 500;
}

.path-tip {
  font-size: 13px;
  color: #5a6b74;
  margin: 0;
  padding: 12px;
  background-color: #f7f3ea;
  border-radius: 6px;
}

/* --- FAQ 页 --- */

.faq-index {
  margin-bottom: 40px;
}

.content-media {
  margin-bottom: 20px;
}

.content-media-inline {
  border-radius: 8px;
  overflow: hidden;
}

.content-media-inline img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.content-media-inline figcaption {
  padding: 8px 16px;
  font-size: 13px;
  color: #5a6b74;
  background-color: #ffffff;
  border: 1px solid #d9d2c4;
  border-top: none;
}

.faq-index-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 0;
  margin: 0;
}

.faq-index-list li {
  margin: 0;
}

.faq-index-list a {
  display: inline-block;
  padding: 6px 16px;
  background-color: #ffffff;
  border: 1px solid #d9d2c4;
  border-radius: 20px;
  font-size: 14px;
  color: #0e7c7b;
}

.faq-index-list a:hover {
  border-color: #0e7c7b;
  text-decoration: none;
}

.faq-group {
  margin-bottom: 32px;
}

.faq-group-title {
  font-size: 20px;
  font-weight: 600;
  color: #123b4f;
  margin: 0 0 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid #e06a45;
}

.faq-groups .faq-item {
  background-color: #ffffff;
  border-radius: 6px;
  border: 1px solid #d9d2c4;
  padding: 16px 20px;
  margin-bottom: 12px;
}

.faq-groups summary {
  font-size: 15px;
  font-weight: 500;
  color: #123b4f;
  cursor: pointer;
  position: relative;
  padding-right: 24px;
}

.faq-groups summary::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 0;
  color: #e06a45;
  font-size: 20px;
  font-weight: 400;
}

.faq-groups details[open] summary::after {
  content: "−";
}

.faq-groups details p {
  font-size: 14px;
  color: #4a5b64;
  margin: 12px 0 0;
  padding-top: 12px;
  border-top: 1px solid #e8e2d6;
}

.faq-groups details p a {
  font-weight: 500;
}

.unresolved {
  padding: 24px;
  background-color: #e8e2d6;
  border-radius: 8px;
  margin-bottom: 40px;
}

.unresolved h2 {
  font-size: 20px;
  font-weight: 600;
  color: #123b4f;
  margin: 0 0 12px;
}

.unresolved p {
  font-size: 14px;
  color: #4a5b64;
  margin: 0;
}

.unresolved a {
  font-weight: 500;
}

/* --- 联系支持页 --- */

.section-block {
  margin-bottom: 48px;
}

.section-block > h2 {
  font-size: 22px;
  font-weight: 600;
  color: #123b4f;
  margin: 0 0 16px;
}

.scope-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.scope-card {
  border-radius: 8px;
  padding: 24px;
  border: 1px solid #d9d2c4;
}

.scope-supported {
  background-color: #ffffff;
  border-top: 4px solid #0e7c7b;
}

.scope-unsupported {
  background-color: #f7f3ea;
  border-top: 4px solid #e06a45;
}

.scope-card h3 {
  font-size: 17px;
  font-weight: 600;
  color: #123b4f;
  margin: 0 0 16px;
}

.scope-card ul {
  padding: 0;
  margin: 0;
}

.scope-card li {
  padding: 6px 0;
  font-size: 14px;
  color: #2b3a42;
  position: relative;
  padding-left: 20px;
}

.scope-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: #0e7c7b;
}

.scope-unsupported li::before {
  background-color: #e06a45;
}

.prep-list {
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.prep-list li {
  background-color: #ffffff;
  border-radius: 8px;
  padding: 24px;
  border: 1px solid #d9d2c4;
}

.prep-list h3 {
  font-size: 16px;
  font-weight: 600;
  color: #123b4f;
  margin: 0 0 8px;
}

.prep-list p {
  font-size: 14px;
  color: #4a5b64;
  margin: 0;
}

.path-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: center;
}

.path-list {
  padding: 0;
  margin: 0;
}

.path-list li {
  display: flex;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px dashed #d9d2c4;
  align-items: flex-start;
}

.path-list li:last-child {
  border-bottom: none;
}

.path-step-num {
  font-family: "SF Mono", "Consolas", monospace;
  font-size: 18px;
  font-weight: 600;
  color: #e06a45;
  flex-shrink: 0;
  width: 32px;
  line-height: 1.4;
}

.path-list p {
  font-size: 14px;
  color: #4a5b64;
  margin: 0;
}

.path-media {
  border-radius: 8px;
  overflow: hidden;
}

.path-media img {
  width: 100%;
  height: 240px;
  object-fit: cover;
}

.path-media figcaption {
  padding: 8px 12px;
  font-size: 13px;
  color: #5a6b74;
  background-color: #e8e2d6;
}

.faq-entry-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  padding: 0;
  margin: 0;
}

.faq-entry-list li {
  margin: 0;
}

.faq-entry-list a {
  display: inline-block;
  padding: 8px 20px;
  background-color: #ffffff;
  border: 1px solid #d9d2c4;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  color: #0e7c7b;
}

.faq-entry-list a:hover {
  border-color: #0e7c7b;
  text-decoration: none;
}

/* --- 404 页 --- */

.error-main {
  min-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 48px 24px;
}

.error-content {
  max-width: 560px;
  text-align: center;
}

.error-code {
  font-family: "SF Mono", "Consolas", monospace;
  font-size: 72px;
  font-weight: 600;
  color: #e06a45;
  margin: 0 0 8px;
  line-height: 1.2;
}

.error-content h1 {
  font-size: 24px;
  font-weight: 600;
  color: #123b4f;
  margin: 0 0 16px;
}

.error-desc {
  font-size: 15px;
  color: #4a5b64;
  margin: 0 0 24px;
}

.error-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-bottom: 24px;
}

.btn-primary {
  display: inline-block;
  padding: 10px 24px;
  background-color: #0e7c7b;
  color: #ffffff;
  font-size: 14px;
  font-weight: 500;
  border-radius: 6px;
  transition: background-color 0.2s ease;
}

.btn-primary:hover {
  background-color: #0a5f5e;
  color: #ffffff;
  text-decoration: none;
}

.btn-secondary {
  display: inline-block;
  padding: 10px 24px;
  background-color: #ffffff;
  color: #0e7c7b;
  font-size: 14px;
  font-weight: 500;
  border-radius: 6px;
  border: 1px solid #d9d2c4;
  transition: border-color 0.2s ease;
}

.btn-secondary:hover {
  border-color: #0e7c7b;
  text-decoration: none;
}

.error-help {
  font-size: 13px;
  color: #5a6b74;
  margin: 0;
}

/* ==========================================================================
   pages
   ========================================================================== */

.page-channels .inner-main {
  padding-top: 32px;
}

.page-collections .inner-main {
  padding-top: 32px;
}

.page-start .inner-main {
  padding-top: 32px;
}

.page-features .inner-main {
  padding-top: 32px;
}

.page-troubleshooting .inner-main {
  padding-top: 32px;
}

.page-faq .inner-main {
  padding-top: 32px;
}

.page-contact .inner-main {
  padding-top: 32px;
}

/* ==========================================================================
   responsive
   ========================================================================== */

@media (max-width: 1024px) {
  .header-inner {
    padding: 0 16px;
  }

  .nav-list a {
    padding: 8px 8px;
    font-size: 13px;
  }

  .tool-entry {
    padding: 8px 12px;
    font-size: 13px;
  }

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

  .channel-row {
    grid-template-columns: 1.2fr 0.8fr 1fr 1fr;
  }

  .channel-status {
    grid-column: 1 / -1;
  }

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

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

  .featured-card {
    grid-template-columns: 1fr;
  }

  .featured-media {
    min-height: 220px;
  }

  .featured-media img {
    height: 220px;
  }

  .steps-layout {
    grid-template-columns: 1fr;
  }

  .example-layout {
    grid-template-columns: 1fr;
  }

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

  .step-list {
    grid-template-columns: 1fr;
  }

  .feature-detail {
    grid-template-columns: 1fr;
  }

  .service-path {
    grid-template-columns: 1fr;
  }

  .path-layout {
    grid-template-columns: 1fr;
  }

  .hero-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .hero-title {
    font-size: 28px;
  }

  .page-title {
    font-size: 28px;
  }
}

@media (max-width: 768px) {
  .header-inner {
    flex-wrap: wrap;
    padding: 12px 16px;
    gap: 8px;
  }

  .site-nav {
    order: 3;
    width: 100%;
  }

  .nav-toggle {
    display: flex;
    position: absolute;
    right: 16px;
    top: 12px;
  }

  .nav-list {
    display: none;
    flex-direction: column;
    width: 100%;
    background-color: #123b4f;
    padding: 8px 0;
    border-radius: 6px;
  }

  .nav-list.is-open {
    display: flex;
  }

  .nav-list li {
    width: 100%;
  }

  .nav-list a {
    padding: 10px 16px;
    font-size: 15px;
    border-radius: 0;
    width: 100%;
  }

  .tool-entry {
    margin-left: auto;
    margin-right: 44px;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .footer-brand {
    grid-column: 1;
  }

  .inner-main {
    padding: 24px 16px 48px;
  }

  .page-title {
    font-size: 26px;
  }

  .workflow-steps {
    grid-template-columns: 1fr;
  }

  .channel-row {
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }

  .channel-name {
    grid-column: 1 / -1;
  }

  .channel-status {
    grid-column: auto;
  }

  .collection-cards {
    grid-template-columns: 1fr;
  }

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

  .tips-list {
    grid-template-columns: 1fr;
  }

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

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

  .prep-list {
    grid-template-columns: 1fr;
  }

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

  .topic-anchor-list {
    gap: 6px;
  }

  .topic-anchor-list a {
    padding: 6px 12px;
    font-size: 13px;
  }

  .channel-row-list .channel-row {
    grid-template-columns: 1fr;
  }

  .channel-row-list .channel-name {
    grid-column: auto;
  }

  .hero-figure img {
    height: 200px;
  }

  .overview-figure img {
    height: 180px;
  }

  .collection-figure img {
    height: 180px;
  }

  .page-figure img {
    height: 180px;
  }

  .steps-media img {
    height: 200px;
  }

  .example-figure img {
    height: 200px;
  }

  .feature-media img {
    height: 180px;
  }

  .path-media img {
    height: 200px;
  }

  .content-media-inline img {
    height: 160px;
  }

  .error-code {
    font-size: 56px;
  }
}

@media (max-width: 480px) {
  .header-inner {
    padding: 10px 12px;
  }

  .brand-name {
    font-size: 17px;
  }

  .inner-main {
    padding: 20px 12px 40px;
  }

  .hero-section {
    padding: 32px 0;
  }

  .hero-layout {
    padding: 0 16px;
  }

  .hero-title {
    font-size: 24px;
  }

  .workflow-section,
  .collections-section,
  .related-links {
    padding: 32px 16px;
  }

  .channel-overview {
    padding: 32px 0;
  }

  .channel-overview .section-heading,
  .topic-filter,
  .channel-list,
  .channel-more,
  .overview-figure {
    padding-left: 16px;
    padding-right: 16px;
  }

  .faq-summary {
    padding: 32px 0;
  }

  .faq-summary .section-heading,
  .faq-summary .faq-item,
  .faq-more {
    padding-left: 16px;
    padding-right: 16px;
  }

  .channel-row {
    grid-template-columns: 1fr;
    padding: 12px 16px;
  }

  .channel-name {
    grid-column: auto;
  }

  .channel-status {
    grid-column: auto;
  }

  .collection-card {
    padding: 20px;
  }

  .page-header {
    margin-bottom: 24px;
  }

  .page-title {
    font-size: 24px;
  }

  .task-card {
    padding: 24px;
  }

  .feature-block {
    padding: 24px;
  }

  .use-steps {
    padding: 24px;
  }

  .service-path {
    padding: 24px;
  }

  .check-card {
    padding: 20px;
  }

  .topic-block {
    padding: 20px;
  }

  .category-card {
    padding: 20px;
  }

  .help-block {
    padding: 20px;
  }

  .scope-card {
    padding: 20px;
  }

  .prep-list li {
    padding: 20px;
  }

  .step-list .step-item {
    padding: 20px;
    flex-direction: column;
  }

  .step-number {
    font-size: 20px;
  }

  .tips-list .tip-item {
    padding: 20px;
  }

  .error-actions {
    flex-direction: column;
    align-items: center;
  }

  .btn-primary,
  .btn-secondary {
    width: 100%;
    text-align: center;
  }
}