/* ============================================================
   九九九影院 · 全站样式表
   分组：base / layout / components / pages / responsive
   ============================================================ */

/* ------------------------------------------------------------
   base：变量、重置、排版基线
   ------------------------------------------------------------ */
:root {
  --ink: #141210;
  --ink-soft: #2a2622;
  --paper: #f5f1ea;
  --paper-deep: #ece6dc;
  --accent: #e8552d;
  --accent-dark: #c8431f;
  --green: #2f6b5e;
  --muted: #8a8378;
  --line: #d8d1c6;
  --line-dark: #3a352f;
  --radius: 6px;
  --radius-sm: 4px;
  --container: 1140px;
  --gap: 28px;
  --font-base: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
}

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

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-base);
  font-size: 16px;
  line-height: 1.75;
  font-weight: 400;
}

h1,
h2,
h3 {
  margin: 0;
  font-weight: 700;
  line-height: 1.28;
  color: var(--ink);
}

p {
  margin: 0;
}

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

a {
  color: var(--accent-dark);
  text-decoration: none;
}

a:hover,
a:focus-visible {
  text-decoration: underline;
}

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

figure {
  margin: 0;
}

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

button {
  font: inherit;
  color: inherit;
  cursor: pointer;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ------------------------------------------------------------
   layout：全站骨架（页头、导航、主容器、页脚）
   ------------------------------------------------------------ */
.site-body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background: var(--paper);
  color: var(--ink);
}

.site-header {
  background: var(--ink);
  color: var(--paper);
  border-bottom: 3px solid var(--accent);
}

.header-inner {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 16px 20px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 24px;
}

.brand {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-right: auto;
  color: var(--paper);
  text-decoration: none;
}

.brand:hover,
.brand:focus-visible {
  text-decoration: none;
}

.brand-name {
  font-size: 22px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--paper);
}

.brand-tagline {
  font-size: 12px;
  line-height: 1.4;
  color: var(--muted);
}

.nav-toggle {
  display: none;
  width: 46px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--line-dark);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--paper);
  font-size: 18px;
  line-height: 1;
}

.nav-toggle::before {
  content: "菜单";
  font-size: 13px;
}

.site-nav {
  display: block;
}

.nav-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 22px;
}

.nav-link {
  display: inline-block;
  padding: 6px 0;
  color: var(--paper);
  font-size: 15px;
  line-height: 1.5;
  text-decoration: none;
  border-bottom: 2px solid transparent;
}

.nav-link:hover,
.nav-link:focus-visible {
  border-bottom-color: var(--accent);
  text-decoration: none;
}

.nav-link.is-current {
  font-weight: 700;
  border-bottom-color: var(--accent);
}

.site-main {
  flex: 1 0 auto;
  width: 100%;
}

.inner-main {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 20px 64px;
}

.site-footer {
  background: var(--ink);
  color: var(--paper);
  border-top: 3px solid var(--accent);
}

.footer-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 48px 20px 32px;
  display: grid;
  grid-template-columns: minmax(220px, 1fr) minmax(0, 2.2fr);
  gap: 40px;
}

.footer-about {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-brand {
  font-size: 20px;
  font-weight: 700;
  color: var(--paper);
}

.footer-desc {
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
  max-width: 320px;
}

.footer-nav {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
}

.footer-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-group-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--accent);
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line-dark);
}

.footer-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-list a {
  color: var(--paper);
  font-size: 14px;
  line-height: 1.6;
  text-decoration: none;
}

.footer-list a:hover,
.footer-list a:focus-visible {
  color: var(--accent);
  text-decoration: underline;
}

.footer-bottom {
  border-top: 1px solid var(--line-dark);
}

.footer-copyright {
  max-width: var(--container);
  margin: 0 auto;
  padding: 18px 20px 26px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

/* ------------------------------------------------------------
   components：通用区块、按钮、清单、链接
   ------------------------------------------------------------ */
.section-head {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 26px;
}

.section-title {
  font-size: 28px;
  line-height: 1.3;
}

.section-lead,
.section-desc,
.section-intro {
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink-soft);
  max-width: 68ch;
}

.section-more {
  margin-top: 24px;
  font-size: 15px;
}

.text-link {
  display: inline-block;
  color: var(--accent-dark);
  font-weight: 700;
  border-bottom: 2px solid var(--accent);
  padding-bottom: 2px;
}

.text-link:hover,
.text-link:focus-visible {
  color: var(--ink);
  border-bottom-color: var(--ink);
  text-decoration: none;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 12px 24px;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.4;
  text-decoration: none;
  border: 2px solid transparent;
}

.btn:hover,
.btn:focus-visible {
  text-decoration: none;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
}

.btn-ghost {
  background: transparent;
  color: var(--paper);
  border-color: var(--paper);
}

.btn-ghost:hover,
.btn-ghost:focus-visible {
  background: var(--paper);
  color: var(--ink);
}

/* 面包屑 */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 22px 0 0;
  font-size: 14px;
  color: var(--muted);
}

.breadcrumb a {
  color: var(--muted);
  text-decoration: none;
}

.breadcrumb a:hover,
.breadcrumb a:focus-visible {
  color: var(--accent-dark);
  text-decoration: underline;
}

.breadcrumb-sep {
  color: var(--line);
}

.breadcrumb-current {
  color: var(--ink-soft);
  font-weight: 700;
}

/* 内页页面标题区 */
.page-header {
  padding: 18px 0 26px;
  margin-bottom: 34px;
  border-bottom: 3px solid var(--ink);
}

.page-title {
  font-size: 40px;
  line-height: 1.24;
  font-weight: 700;
  color: var(--ink);
}

.page-description {
  margin-top: 14px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink-soft);
  max-width: 68ch;
}

/* 要点清单（首页注意事项 / 区域建议） */
.note-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px 32px;
}

.note-item {
  position: relative;
  padding-left: 26px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.note-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 12px;
  height: 12px;
  border: 2px solid var(--accent);
  border-radius: 2px;
}

/* 通用编号建议清单 */
.advice-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 22px;
}

.advice-item {
  border-top: 3px solid var(--green);
  padding-top: 16px;
}

.advice-title {
  font-size: 20px;
  margin-bottom: 8px;
}

.advice-text {
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
}

/* FAQ 折叠项 */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  padding: 0 18px;
}

.faq-question {
  padding: 16px 0;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.6;
  cursor: pointer;
  list-style: none;
}

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

.faq-question::after {
  content: "＋";
  float: right;
  margin-left: 12px;
  color: var(--accent);
  font-weight: 700;
}

.faq-item[open] .faq-question::after {
  content: "－";
}

.faq-answer {
  padding: 14px 0 18px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-soft);
  border-top: 1px solid var(--line);
}

/* 图片容器统一约束 */
figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius);
}

figcaption {
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}

/* 相关页面入口列表 */
.related-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
}

.related-item a {
  display: block;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
  text-decoration: none;
}

.related-item a:hover,
.related-item a:focus-visible {
  border-color: var(--accent);
  color: var(--accent-dark);
  text-decoration: none;
}

/* ------------------------------------------------------------
   pages：首页
   ------------------------------------------------------------ */
.home-main {
  display: block;
}

.hero {
  background: var(--ink);
  color: var(--paper);
}

.hero-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 56px 20px 60px;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: 44px;
  align-items: center;
}

.hero-text {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.hero-eyebrow {
  font-size: 14px;
  font-weight: 700;
  color: var(--accent);
}

.hero-title {
  font-size: 40px;
  line-height: 1.24;
  color: var(--paper);
}

.hero-desc {
  font-size: 16px;
  line-height: 1.85;
  color: #ded8ce;
  max-width: 60ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 6px;
}

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

.hero-media img {
  width: 100%;
  height: 340px;
  object-fit: cover;
  border-radius: var(--radius);
  border: 3px solid var(--line-dark);
}

.hero-media figcaption {
  color: var(--muted);
}

.services-overview,
.regions-index,
.process-overview,
.notes-summary,
.feedback-entry {
  max-width: var(--container);
  margin: 0 auto;
  padding: 56px 20px;
  border-bottom: 1px solid var(--line);
}

.feedback-entry {
  border-bottom: none;
}

/* 服务项目总览：四栏不等宽节奏 */
.services-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  border-top: 3px solid var(--ink);
}

.service-col {
  padding: 22px 22px 26px;
  border-right: 1px solid var(--line);
}

.service-col:last-child {
  border-right: none;
}

.service-name {
  font-size: 20px;
  margin-bottom: 10px;
}

.service-fit {
  font-size: 14px;
  line-height: 1.7;
  color: var(--green);
  font-weight: 700;
  margin-bottom: 10px;
}

.service-scope {
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
}

/* 覆盖区域索引 */
.region-media {
  display: flex;
  flex-direction: column;
  margin-bottom: 26px;
}

.region-media img {
  width: 100%;
  height: 260px;
  object-fit: cover;
  border-radius: var(--radius);
}

.region-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 0;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.region-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 20px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  min-height: 44px;
}

.region-name {
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
}

.region-note {
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

/* 办理流程概览 */
.process-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
}

.process-step {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-top: 16px;
  border-top: 3px solid var(--accent);
}

.process-step .step-index {
  font-size: 13px;
  font-weight: 700;
  color: var(--accent);
}

.process-step .step-name {
  font-size: 18px;
}

.process-step .step-desc {
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
}

/* 首页问题反馈入口 */
.feedback-cols {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
}

.feedback-col {
  padding: 22px 24px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.feedback-name {
  font-size: 20px;
  margin-bottom: 10px;
}

.feedback-desc {
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
}

/* ------------------------------------------------------------
   pages：服务项目页（左侧栏两栏布局）
   ------------------------------------------------------------ */
.page-layout {
  display: grid;
  gap: 40px;
}

.sidebar-left .page-layout,
.page-layout.sidebar-left {
  grid-template-columns: minmax(240px, 280px) minmax(0, 1fr);
}

.services-sidebar {
  display: flex;
  flex-direction: column;
  gap: 18px;
  align-self: start;
  padding: 22px 20px;
  background: var(--paper-deep);
  border-top: 3px solid var(--ink);
  border-radius: var(--radius-sm);
}

.sidebar-title {
  font-size: 17px;
}

.sidebar-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.sidebar-list a {
  display: block;
  padding: 6px 0;
  font-size: 15px;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
}

.sidebar-list a:hover,
.sidebar-list a:focus-visible {
  color: var(--accent-dark);
  border-bottom-color: var(--accent);
  text-decoration: none;
}

.sidebar-note {
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

.sidebar-links ul {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 10px;
}

.sidebar-links a {
  font-size: 14px;
  color: var(--green);
  text-decoration: none;
}

.sidebar-links a:hover,
.sidebar-links a:focus-visible {
  text-decoration: underline;
}

.services-content {
  display: flex;
  flex-direction: column;
  gap: 48px;
  min-width: 0;
}

.services-groups {
  display: flex;
  flex-direction: column;
  gap: 34px;
}

.service-group {
  padding-bottom: 28px;
  border-bottom: 1px solid var(--line);
}

.group-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 14px;
}

.group-name {
  font-size: 22px;
}

.group-tag {
  font-size: 13px;
  font-weight: 700;
  color: var(--green);
  border: 1px solid var(--green);
  border-radius: 999px;
  padding: 2px 10px;
}

.group-media {
  display: flex;
  flex-direction: column;
  margin-bottom: 16px;
}

.group-media img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-radius: var(--radius);
}

.group-meta {
  display: grid;
  grid-template-columns: minmax(96px, max-content) minmax(0, 1fr);
  gap: 10px 18px;
  margin: 0;
}

.group-meta dt {
  font-size: 14px;
  font-weight: 700;
  color: var(--accent-dark);
}

.group-meta dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
}

/* 包含项对照表 */
.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.compare-table {
  min-width: 520px;
}

.table-caption {
  caption-side: top;
  padding: 14px 16px;
  font-size: 14px;
  color: var(--muted);
  text-align: left;
}

.compare-table th,
.compare-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  font-size: 15px;
  line-height: 1.75;
  text-align: left;
  vertical-align: top;
}

.compare-table thead th {
  background: var(--paper-deep);
  font-weight: 700;
  color: var(--ink);
}

.compare-table tbody tr:last-child th,
.compare-table tbody tr:last-child td {
  border-bottom: none;
}

/* ------------------------------------------------------------
   pages：覆盖区域页
   ------------------------------------------------------------ */
.region-index,
.region-differences,
.region-advice {
  padding: 8px 0 44px;
  border-bottom: 1px solid var(--line);
}

.region-advice {
  border-bottom: none;
}

.region-figure {
  display: flex;
  flex-direction: column;
  margin-bottom: 26px;
}

.region-figure img {
  width: 100%;
  height: 280px;
  object-fit: cover;
  border-radius: var(--radius);
}

.region-strip-list {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--line);
}

.region-strip {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 4px;
  border-bottom: 1px solid var(--line);
}

.region-strip-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.region-strip .region-name {
  font-size: 19px;
}

.region-tag {
  font-size: 12px;
  font-weight: 700;
  color: var(--green);
  border: 1px solid var(--green);
  border-radius: 999px;
  padding: 2px 10px;
}

.region-strip-desc {
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
  max-width: 76ch;
}

.difference-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.difference-card {
  padding: 20px 22px;
  background: #fff;
  border: 1px solid var(--line);
  border-top: 3px solid var(--green);
  border-radius: var(--radius);
}

.difference-title {
  font-size: 19px;
  margin-bottom: 10px;
}

.difference-text {
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.difference-list {
  margin-top: 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.difference-list li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-soft);
}

.difference-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 2px;
}

.region-related {
  margin-top: 34px;
  padding-top: 22px;
  border-top: 3px solid var(--ink);
}

.region-related .related-title {
  font-size: 18px;
  margin-bottom: 14px;
}

/* ------------------------------------------------------------
   pages：办理流程页
   ------------------------------------------------------------ */
.process-stages,
.preparation-list,
.key-nodes,
.process-links {
  padding: 8px 0 44px;
  border-bottom: 1px solid var(--line);
}

.process-links {
  border-bottom: none;
}

.process-stages > h2,
.preparation-list > h2,
.key-nodes > h2,
.process-links > h2 {
  font-size: 28px;
  margin-bottom: 12px;
}

.process-stages > .section-intro,
.preparation-list > .section-intro,
.key-nodes > .section-intro,
.process-links > .section-intro {
  margin-bottom: 26px;
}

.stage-list {
  counter-reset: stage;
  display: flex;
  flex-direction: column;
  gap: 0;
  border-left: 3px solid var(--accent);
}

.stage-item {
  display: flex;
  gap: 22px;
  padding: 0 0 30px 26px;
  position: relative;
}

.stage-item::before {
  content: counter(stage);
  counter-increment: stage;
  position: absolute;
  left: -19px;
  top: 2px;
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--ink);
  color: var(--paper);
  font-size: 14px;
  font-weight: 700;
  border-radius: 50%;
}

.stage-body {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
}

.stage-name {
  font-size: 20px;
}

.stage-desc {
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-soft);
  max-width: 72ch;
}

.stage-output {
  font-size: 14px;
  line-height: 1.7;
  color: var(--green);
  font-weight: 700;
}

.process-figure {
  display: flex;
  flex-direction: column;
  margin: 0 0 44px;
}

.process-figure img {
  width: 100%;
  height: 300px;
  object-fit: cover;
  border-radius: var(--radius);
}

.prep-groups {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 22px;
}

.prep-group {
  padding: 20px 22px;
  background: var(--paper-deep);
  border-radius: var(--radius);
}

.prep-group-title {
  font-size: 18px;
  margin-bottom: 12px;
}

.prep-items {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.prep-item {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.prep-side {
  flex: 0 0 auto;
  font-weight: 700;
  color: var(--accent-dark);
}

.node-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 22px;
}

.node-item {
  padding-top: 16px;
  border-top: 3px solid var(--green);
}

.node-name {
  font-size: 18px;
  margin-bottom: 8px;
}

.node-desc {
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.link-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 14px;
}

.link-card a {
  display: block;
  padding: 16px 18px;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
  text-decoration: none;
}

.link-card a:hover,
.link-card a:focus-visible {
  border-color: var(--accent);
  color: var(--accent-dark);
  text-decoration: none;
}

/* ------------------------------------------------------------
   pages：注意事项页
   ------------------------------------------------------------ */
.notes-section {
  padding: 8px 0 44px;
  border-bottom: 1px solid var(--line);
}

.notes-section:last-of-type {
  border-bottom: none;
}

.notes-section > h2 {
  font-size: 28px;
  margin-bottom: 12px;
}

.notes-section > .section-intro {
  margin-bottom: 26px;
}

.notes-media {
  display: flex;
  flex-direction: column;
  margin-bottom: 26px;
}

.notes-media img {
  width: 100%;
  height: 260px;
  object-fit: cover;
  border-radius: var(--radius);
}

.check-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.check-item {
  position: relative;
  padding: 18px 20px 18px 48px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.check-item::before {
  content: "✓";
  position: absolute;
  left: 18px;
  top: 18px;
  color: var(--green);
  font-weight: 700;
}

.check-title {
  font-size: 18px;
  margin-bottom: 8px;
}

.check-desc {
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.misconception-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  border-top: 1px solid var(--line);
}

.misconception-item {
  padding: 20px 4px;
  border-bottom: 1px solid var(--line);
}

.misconception-title {
  font-size: 18px;
  margin-bottom: 8px;
  color: var(--accent-dark);
}

.misconception-desc {
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-soft);
  max-width: 76ch;
}

.tip-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 22px;
}

.tip-item {
  padding-top: 16px;
  border-top: 3px solid var(--accent);
}

.tip-title {
  font-size: 18px;
  margin-bottom: 8px;
}

.tip-desc {
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.notes-next {
  margin-top: 32px;
  padding: 22px 24px;
  background: var(--paper-deep);
  border-radius: var(--radius);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px 24px;
}

.notes-next-text {
  flex: 1 1 260px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.notes-next-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.notes-next-links a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 10px 20px;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
}

.notes-next-links .link-primary {
  background: var(--accent);
  color: #fff;
}

.notes-next-links .link-primary:hover,
.notes-next-links .link-primary:focus-visible {
  background: var(--accent-dark);
  text-decoration: none;
}

.notes-next-links .link-secondary {
  border: 2px solid var(--ink);
  color: var(--ink);
}

.notes-next-links .link-secondary:hover,
.notes-next-links .link-secondary:focus-visible {
  background: var(--ink);
  color: var(--paper);
  text-decoration: none;
}

/* ------------------------------------------------------------
   pages：问题反馈页
   ------------------------------------------------------------ */
.anchor-nav {
  margin-bottom: 32px;
  padding: 14px 16px;
  background: var(--paper-deep);
  border-radius: var(--radius);
}

.anchor-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
}

.anchor-list a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 2px solid var(--line);
}

.anchor-list a:hover,
.anchor-list a:focus-visible {
  color: var(--accent-dark);
  border-bottom-color: var(--accent);
  text-decoration: none;
}

.section {
  padding: 8px 0 44px;
  border-bottom: 1px solid var(--line);
}

.section-related {
  border-bottom: none;
}

.channel-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 22px;
}

.channel-item {
  padding: 20px 22px;
  background: #fff;
  border: 1px solid var(--line);
  border-top: 3px solid var(--accent);
  border-radius: var(--radius);
}

.channel-name {
  font-size: 19px;
  margin-bottom: 10px;
}

.channel-scene {
  font-size: 14px;
  font-weight: 700;
  color: var(--green);
  margin-bottom: 8px;
}

.channel-note {
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.info-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
  gap: 34px;
  align-items: start;
}

.info-media {
  display: flex;
  flex-direction: column;
}

.info-media img {
  width: 100%;
  height: 320px;
  object-fit: cover;
  border-radius: var(--radius);
}

.info-list {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.info-item {
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.info-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.info-title {
  font-size: 18px;
  margin-bottom: 6px;
}

.info-text {
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.rhythm-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.rhythm-item {
  padding-top: 16px;
  border-top: 3px solid var(--green);
}

.rhythm-title {
  font-size: 18px;
  margin-bottom: 8px;
}

.rhythm-text {
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
}

/* ------------------------------------------------------------
   pages：404
   ------------------------------------------------------------ */
.error-main {
  max-width: var(--container);
  margin: 0 auto;
  padding: 64px 20px 72px;
}

.error-block {
  max-width: 640px;
  margin-bottom: 48px;
}

.error-code {
  font-size: 15px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 10px;
}

.error-block h1 {
  font-size: 40px;
  line-height: 1.24;
  margin-bottom: 16px;
}

.error-text {
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink-soft);
  margin-bottom: 24px;
}

.error-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.error-actions .btn-ghost {
  color: var(--ink);
  border-color: var(--ink);
}

.error-actions .btn-ghost:hover,
.error-actions .btn-ghost:focus-visible {
  background: var(--ink);
  color: var(--paper);
}

.error-links {
  padding-top: 28px;
  border-top: 3px solid var(--ink);
}

.error-links h2 {
  font-size: 22px;
  margin-bottom: 16px;
}

.error-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
}

.error-list a {
  display: block;
  padding: 14px 16px;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
  text-decoration: none;
}

.error-list a:hover,
.error-list a:focus-visible {
  border-color: var(--accent);
  color: var(--accent-dark);
  text-decoration: none;
}

/* ------------------------------------------------------------
   responsive：900px / 600px 断点
   ------------------------------------------------------------ */
@media (max-width: 900px) {
  .header-inner {
    flex-wrap: nowrap;
    align-items: center;
  }

  .nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    order: 2;
  }

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

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    width: 100%;
    padding: 8px 0 4px;
  }

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

  .nav-link {
    display: block;
    padding: 12px 2px 12px 10px;
    border-bottom: 1px solid var(--line-dark);
    border-left: 3px solid transparent;
  }

  .nav-link.is-current {
    border-bottom-color: var(--line-dark);
    border-left-color: var(--accent);
  }

  .hero-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 30px;
    padding: 40px 20px 44px;
  }

  .hero-title,
  .page-title {
    font-size: 30px;
  }

  .hero-media img {
    height: 260px;
  }

  .services-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .service-col {
    border-bottom: 1px solid var(--line);
  }

  .service-col:nth-child(2n) {
    border-right: none;
  }

  .feedback-cols {
    grid-template-columns: minmax(0, 1fr);
  }

  .info-layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .info-media img {
    height: 240px;
  }

  .sidebar-left .page-layout,
  .page-layout.sidebar-left {
    grid-template-columns: minmax(0, 1fr);
    gap: 30px;
  }

  .services-sidebar {
    order: 2;
  }

  .services-content {
    order: 1;
  }

  .footer-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 32px;
    padding: 40px 20px 26px;
  }

  .footer-nav {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .footer-desc {
    max-width: none;
  }
}

@media (max-width: 600px) {
  body {
    font-size: 15px;
  }

  .header-inner {
    padding: 12px 16px;
    gap: 10px 14px;
  }

  .brand-name {
    font-size: 19px;
  }

  .brand-tagline {
    font-size: 11px;
  }

  .inner-main {
    padding: 0 16px 48px;
  }

  .hero-inner {
    padding: 32px 16px 36px;
  }

  .hero-title,
  .page-title,
  .error-block h1 {
    font-size: 28px;
  }

  .hero-media img {
    height: 210px;
  }

  .services-overview,
  .regions-index,
  .process-overview,
  .notes-summary,
  .feedback-entry {
    padding: 40px 16px;
  }

  .section-title,
  .process-stages > h2,
  .preparation-list > h2,
  .key-nodes > h2,
  .process-links > h2,
  .notes-section > h2 {
    font-size: 22px;
  }

  .services-grid {
    grid-template-columns: minmax(0, 1fr);
    border-top-width: 3px;
  }

  .service-col {
    padding: 18px 2px 20px;
    border-right: none;
  }

  .region-media img,
  .region-figure img,
  .process-figure img,
  .notes-media img,
  .group-media img {
    height: 200px;
  }

  .region-list {
    grid-template-columns: minmax(0, 1fr);
  }

  .process-steps,
  .difference-grid,
  .prep-groups,
  .node-list,
  .link-cards,
  .check-list,
  .tip-list,
  .channel-list,
  .rhythm-list,
  .advice-list,
  .note-list,
  .related-list,
  .error-list {
    grid-template-columns: minmax(0, 1fr);
  }

  .group-meta {
    grid-template-columns: minmax(0, 1fr);
    gap: 4px;
  }

  .group-meta dd {
    margin-bottom: 10px;
  }

  .stage-item {
    gap: 14px;
    padding-left: 20px;
  }

  .notes-next {
    padding: 18px 16px;
  }

  .notes-next-links {
    width: 100%;
  }

  .notes-next-links a {
    flex: 1 1 auto;
    justify-content: center;
  }

  .footer-nav {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
  }

  .footer-copyright {
    padding: 16px 16px 22px;
  }

  .error-main {
    padding: 44px 16px 56px;
  }
}