/* =========================================================
   日韩影视网 · 编辑部手册风样式
   base → layout → components → pages → responsive
   ========================================================= */

/* ---------- base ---------- */
:root {
  --paper: #f6f2ea;
  --ink: #191817;
  --lake: #1d4e5f;
  --amber: #c2762b;
  --sage: #6f7f75;
  --sand: #e2d9c9;
  --white: #ffffff;
  --serif: "Noto Serif SC", "Songti SC", STSong, serif;
  --sans: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
  --line: 1px solid var(--sand);
  --radius: 2px;
  --container: 1180px;
  --main-w: 760px;
  --side-w: 320px;
  --gap: 40px;
}

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

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

body.site-body {
  margin: 0;
  background-color: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.75;
}

h1,
h2,
h3 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: 0;
}

p {
  margin: 0 0 12px;
}

p:last-child {
  margin-bottom: 0;
}

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

a {
  color: var(--lake);
  text-decoration: none;
  transition: color 0.15s ease;
}

a:hover {
  color: var(--amber);
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}

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

button {
  font: inherit;
  color: inherit;
}

figure {
  margin: 0;
}

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

/* ---------- layout ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.page-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) var(--side-w);
  gap: var(--gap);
  align-items: start;
}

.page-layout > .main-col,
.page-layout > .content-main,
.page-layout > .main-column,
.page-layout > .layout-main {
  min-width: 0;
}

.page-layout > .side-col,
.page-layout > .content-aside,
.page-layout > .content-side,
.page-layout > .side-column,
.page-layout > .layout-side {
  min-width: 0;
}

.site-main {
  display: block;
}

.inner-main {
  padding: 0 0 56px;
}

/* ---------- header ---------- */
.site-header {
  background-color: var(--paper);
  border-bottom: 1px solid var(--ink);
}

.header-inner {
  position: relative;
  display: flex;
  align-items: center;
  gap: 28px;
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 16px 24px;
}

.brand-block {
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.brand-mark {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.2;
}

.brand-mark:hover {
  color: var(--lake);
}

.brand-slogan {
  margin: 0;
  font-size: 12px;
  color: var(--sage);
  line-height: 1.4;
}

.site-nav {
  flex: 1 1 auto;
  min-width: 0;
}

.nav-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px 22px;
}

.nav-list > li {
  position: relative;
}

.nav-link {
  display: inline-block;
  padding: 6px 0;
  font-size: 15px;
  color: var(--ink);
  border-bottom: 2px solid transparent;
}

.nav-link:hover {
  color: var(--lake);
  border-bottom-color: var(--lake);
}

.nav-link.is-current {
  color: var(--ink);
  border-bottom-color: var(--amber);
}

.header-note {
  flex: 0 0 auto;
  font-size: 13px;
  color: var(--sage);
  border-bottom: 1px solid transparent;
}

.header-note:hover {
  color: var(--lake);
  border-bottom-color: var(--lake);
}

/* 二级面板 */
.nav-panel {
  position: absolute;
  top: 100%;
  left: -20px;
  z-index: 40;
  display: none;
  grid-template-columns: repeat(3, minmax(150px, 1fr));
  gap: 24px;
  padding: 20px 24px;
  background-color: var(--white);
  border: var(--line);
  border-radius: var(--radius);
  box-shadow: 0 8px 20px rgba(25, 24, 23, 0.08);
}

.has-panel:hover .nav-panel,
.has-panel:focus-within .nav-panel {
  display: grid;
}

.panel-col {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.panel-title {
  margin: 0 0 4px;
  font-family: var(--serif);
  font-size: 13px;
  font-weight: 600;
  color: var(--sage);
}

.panel-col a {
  display: block;
  padding: 3px 0;
  font-size: 14px;
  color: var(--ink);
}

.panel-col a:hover {
  color: var(--amber);
}

/* 汉堡按钮 */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0 10px;
  background-color: transparent;
  border: 1px solid var(--sand);
  border-radius: var(--radius);
  cursor: pointer;
}

.nav-toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--ink);
}

/* ---------- breadcrumb / page header ---------- */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  padding: 22px 0 0;
  font-size: 13px;
  color: var(--sage);
}

.breadcrumb a {
  color: var(--sage);
}

.breadcrumb a:hover {
  color: var(--lake);
}

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

.breadcrumb-current {
  color: var(--ink);
}

.page-header {
  padding: 14px 0 18px;
}

.page-title {
  font-family: var(--serif);
  font-size: clamp(26px, 3.2vw, 38px);
  font-weight: 600;
  line-height: 1.25;
  color: var(--ink);
}

.page-hero {
  padding: 0 0 24px;
}

.page-lead {
  max-width: 68ch;
  font-size: 16px;
  color: var(--ink);
}

.page-summary {
  max-width: 68ch;
  font-size: 16px;
  color: var(--ink);
}

.meta-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px 10px;
  margin: 12px 0 0;
  font-size: 13px;
  color: var(--sage);
}

.meta-item {
  display: inline-block;
}

.meta-sep {
  color: var(--sand);
}

.meta-bar > span:not(.meta-sep) + span:not(.meta-sep)::before {
  content: "|";
  margin-right: 10px;
  color: var(--sand);
}

/* ---------- footer ---------- */
.site-footer {
  margin-top: 40px;
  background-color: var(--paper);
  border-top: 1px solid var(--ink);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 32px;
  padding-top: 40px;
  padding-bottom: 32px;
}

.footer-col {
  min-width: 0;
}

.footer-brand {
  margin: 0 0 8px;
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
}

.footer-intro {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--sage);
}

.footer-title {
  margin: 0 0 10px;
  font-family: var(--serif);
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.footer-col ul a {
  display: inline-block;
  padding: 2px 0;
  font-size: 14px;
  color: var(--sage);
}

.footer-col ul a:hover {
  color: var(--lake);
}

.footer-bottom {
  border-top: var(--line);
}

.footer-bottom-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px 24px;
  padding-top: 16px;
  padding-bottom: 16px;
}

.footer-slogan,
.footer-copy {
  margin: 0;
  font-size: 13px;
  color: var(--sage);
}

/* ---------- components ---------- */
.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 16px;
  padding-bottom: 16px;
  border-bottom: var(--line);
}

.section-head h2 {
  font-size: 22px;
}

.section-note {
  flex: 1 1 240px;
  margin: 0;
  font-size: 14px;
  color: var(--sage);
}

.section-more {
  font-size: 14px;
  color: var(--lake);
}

.section-title {
  font-size: 22px;
  margin-bottom: 10px;
}

.section-title-sm {
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 12px;
}

.section-intro {
  max-width: 68ch;
  font-size: 15px;
  color: var(--sage);
  margin-bottom: 16px;
}

.note-box {
  padding: 20px 22px;
  background-color: var(--white);
  border: var(--line);
  border-left: 3px solid var(--lake);
  border-radius: var(--radius);
}

.note-box h2 {
  font-size: 20px;
  margin-bottom: 8px;
}

.note-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin: 12px 0;
}

.note-list li {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
}

.note-list li::before {
  content: "";
  position: absolute;
  top: 0.72em;
  left: 0;
  width: 6px;
  height: 6px;
  background-color: var(--amber);
  border-radius: 1px;
}

.note-link {
  display: inline-block;
  font-size: 14px;
  color: var(--lake);
  border-bottom: 1px solid var(--lake);
}

/* 侧栏速览块 */
.side-box {
  padding: 20px;
  background-color: var(--sand);
  border-radius: var(--radius);
}

.side-title {
  font-size: 18px;
  margin-bottom: 10px;
}

.side-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 14px;
}

.side-list li {
  position: relative;
  padding-left: 16px;
}

.side-list li::before {
  content: "";
  position: absolute;
  top: 0.7em;
  left: 0;
  width: 5px;
  height: 5px;
  background-color: var(--lake);
  border-radius: 50%;
}

.side-link {
  display: inline-block;
  margin-top: 14px;
  font-size: 14px;
  color: var(--lake);
  border-bottom: 1px solid var(--lake);
}

/* FAQ */
.faq-list {
  border-top: var(--line);
}

.faq-item {
  border-bottom: var(--line);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  padding: 16px 0;
  background: none;
  border: 0;
  text-align: left;
  font-family: var(--serif);
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  cursor: pointer;
}

.faq-question:hover {
  color: var(--lake);
}

.faq-arrow {
  flex: 0 0 auto;
  font-size: 13px;
  color: var(--sage);
  transition: transform 0.18s ease;
}

.faq-question[aria-expanded="true"] .faq-arrow {
  transform: rotate(90deg);
}

.faq-answer,
.faq-panel {
  padding: 0 0 16px;
  font-size: 15px;
  color: var(--ink);
}

.faq-answer[hidden],
.faq-panel[hidden] {
  display: none;
}

/* 相关入口 */
.related-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 20px;
  margin-top: 32px;
  padding-top: 18px;
  border-top: var(--line);
}

.related-links-label {
  font-size: 13px;
  color: var(--sage);
}

.related-links-item {
  font-size: 14px;
  color: var(--lake);
}

.related-links-item::after {
  content: " →";
  color: var(--sage);
}

.related-list,
.related-block .related-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.related-list a {
  display: inline-block;
  font-size: 14px;
  color: var(--lake);
}

.related-list a::after {
  content: " →";
  color: var(--sage);
}

.footer-link-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
}

.footer-link-list a {
  font-size: 14px;
  color: var(--lake);
}

/* 图片 */
.hero-figure img,
.topic-figure img,
.channel-figure img,
.content-figure img,
.step-figure img,
.inline-figure img,
.section-figure img {
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius);
  background-color: var(--white);
}

.hero-figure img {
  aspect-ratio: 4 / 3;
}

.topic-figure img {
  aspect-ratio: 16 / 10;
}

.channel-figure img {
  aspect-ratio: 16 / 7;
}

.content-figure img,
.section-figure img {
  aspect-ratio: 16 / 9;
}

.step-figure img {
  aspect-ratio: 16 / 9;
}

.inline-figure img {
  aspect-ratio: 16 / 9;
}

.hero-figure img,
.topic-figure img {
  transition: transform 0.25s ease;
}

.hero-figure:hover img,
.topic-figure:hover img {
  transform: scale(1.02);
}

/* 按钮 */
.btn-primary,
.btn-ghost {
  display: inline-block;
  padding: 10px 22px;
  font-size: 15px;
  border-radius: var(--radius);
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.btn-primary {
  background-color: var(--amber);
  color: var(--white);
  border: 1px solid var(--amber);
}

.btn-primary:hover {
  background-color: #a9611f;
  border-color: #a9611f;
  color: var(--white);
}

.btn-ghost {
  background-color: transparent;
  color: var(--lake);
  border: 1px solid var(--lake);
}

.btn-ghost:hover {
  background-color: var(--lake);
  color: var(--white);
}

/* ---------- pages: index ---------- */
.hero {
  padding: 40px 0 8px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.92fr);
  gap: var(--gap);
  align-items: center;
}

.hero-copy {
  min-width: 0;
}

.hero-kicker {
  margin: 0 0 12px;
  font-size: 13px;
  color: var(--amber);
}

.hero-copy h1 {
  font-size: clamp(28px, 3.6vw, 42px);
  margin-bottom: 16px;
}

.hero-lead {
  max-width: 46ch;
  font-size: 16px;
  color: var(--sage);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.hero-figure {
  min-width: 0;
}

/* 频道索引 */
.channel-index {
  margin-top: 36px;
  padding-top: 20px;
  border-top: 1px solid var(--ink);
}

.index-heading {
  margin: 0 0 12px;
  font-size: 13px;
  color: var(--sage);
}

.index-list {
  display: flex;
  flex-direction: column;
}

.index-list li {
  display: grid;
  grid-template-columns: 44px minmax(120px, 180px) minmax(0, 1fr);
  align-items: baseline;
  gap: 12px;
  padding: 12px 0;
  border-bottom: var(--line);
}

.index-num {
  font-family: var(--serif);
  font-size: 15px;
  color: var(--amber);
  letter-spacing: 0.06em;
}

.index-list a {
  font-family: var(--serif);
  font-size: 17px;
  font-weight: 600;
  color: var(--ink);
}

.index-list a:hover {
  color: var(--lake);
}

.index-desc {
  font-size: 14px;
  color: var(--sage);
}

/* 本周专题片单 */
.topics-strip {
  padding: 48px 0 0;
}

.topic-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin-top: 24px;
}

.topic-item {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 24px;
  align-items: start;
  padding-bottom: 24px;
  border-bottom: var(--line);
}

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

.topic-figure {
  min-width: 0;
}

.entry-body {
  min-width: 0;
}

.entry-body h3 {
  font-size: 20px;
  margin-bottom: 8px;
}

.entry-body h3 a {
  color: var(--ink);
}

.entry-body h3 a:hover {
  color: var(--lake);
}

.entry-body p {
  font-size: 15px;
}

.entry-meta {
  margin-top: 8px;
  font-size: 13px;
  color: var(--sage);
}

/* 观看前准备三步 */
.prep-section {
  padding: 48px 0 0;
}

.prep-section .main-col > h2 {
  font-size: 22px;
  margin-bottom: 8px;
}

.steps {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 20px;
}

.step {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  column-gap: 12px;
  padding: 18px 20px;
  background-color: var(--white);
  border: var(--line);
  border-radius: var(--radius);
}

.step-num {
  grid-row: 1 / span 3;
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 600;
  color: var(--lake);
  letter-spacing: 0.06em;
  line-height: 1.3;
}

.step h3 {
  font-size: 18px;
  margin-bottom: 6px;
}

.step p {
  font-size: 15px;
}

.step-conclusion {
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px dashed var(--sand);
  font-size: 14px;
  color: var(--lake);
}

.prep-section .side-col .side-box {
  position: sticky;
  top: 20px;
}

/* 入口核验提示 */
.check-note {
  padding: 48px 0 0;
}

/* 常见问题 */
.faq-section {
  padding: 48px 0 0;
}

.faq-section h2 {
  font-size: 22px;
  margin-bottom: 16px;
}

/* 编辑说明 */
.editor-note {
  padding: 40px 0 0;
}

.editor-note h2 {
  font-size: 20px;
  margin-bottom: 10px;
}

.editor-note > .container > p {
  font-size: 15px;
  color: var(--sage);
}

.editor-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px 24px;
  margin-top: 16px;
}

.editor-list li {
  padding: 12px 16px;
  background-color: var(--white);
  border: var(--line);
  border-radius: var(--radius);
  font-size: 14px;
}

/* ---------- pages: channels ---------- */
.page-channels .content-main {
  min-width: 0;
}

.channel-figure {
  margin: 8px 0 28px;
}

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

.channel-group h2 {
  font-size: 22px;
  margin-bottom: 8px;
}

.group-intro {
  max-width: 68ch;
  font-size: 15px;
  color: var(--sage);
  margin-bottom: 14px;
}

.channel-table {
  border-top: 1px solid var(--sand);
}

.channel-table li {
  display: grid;
  grid-template-columns: minmax(120px, 180px) 90px minmax(0, 1fr);
  align-items: baseline;
  gap: 12px;
  padding: 11px 0;
  border-bottom: var(--line);
}

.channel-table li:nth-child(even) {
  background-color: rgba(226, 217, 201, 0.32);
}

.channel-table a {
  font-family: var(--serif);
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
}

.channel-table a:hover {
  color: var(--lake);
}

.form-tag {
  display: inline-block;
  padding: 1px 8px;
  font-size: 12px;
  color: var(--lake);
  border: 1px solid var(--lake);
  border-radius: var(--radius);
  white-space: nowrap;
  justify-self: start;
}

.range-note {
  font-size: 14px;
  color: var(--sage);
}

.index-block {
  margin-bottom: 32px;
}

.index-block h2 {
  font-size: 22px;
  margin-bottom: 8px;
}

.index-intro {
  font-size: 15px;
  color: var(--sage);
  margin-bottom: 16px;
}

.index-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.index-col {
  min-width: 0;
  padding: 18px 20px;
  background-color: var(--white);
  border: var(--line);
  border-radius: var(--radius);
}

.index-col h3 {
  font-size: 16px;
  margin-bottom: 10px;
  padding-bottom: 8px;
  border-bottom: var(--line);
}

.index-col ul {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
}

.index-col ul li {
  font-size: 14px;
}

.index-col ul a {
  color: var(--lake);
}

.scope-block {
  margin-bottom: 8px;
}

.scope-block h2 {
  font-size: 22px;
  margin-bottom: 16px;
}

.scope-item {
  padding: 16px 0;
  border-top: var(--line);
}

.scope-item h3 {
  font-size: 17px;
  margin-bottom: 6px;
}

.scope-item p {
  font-size: 15px;
  color: var(--ink);
}

.content-aside .aside-block {
  padding: 20px;
  background-color: var(--sand);
  border-radius: var(--radius);
  margin-bottom: 20px;
}

.content-aside .aside-block h2 {
  font-size: 17px;
  margin-bottom: 12px;
}

.aside-steps {
  display: flex;
  flex-direction: column;
  gap: 12px;
  counter-reset: aside-step;
}

.aside-steps li {
  position: relative;
  padding-left: 26px;
  font-size: 14px;
  counter-increment: aside-step;
}

.aside-steps li::before {
  content: counter(aside-step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0;
  font-family: var(--serif);
  font-size: 13px;
  color: var(--amber);
  letter-spacing: 0.06em;
}

.aside-steps strong {
  display: block;
  font-size: 14px;
  color: var(--ink);
}

.aside-links {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.aside-links a {
  font-size: 14px;
  color: var(--lake);
}

.aside-links a::after {
  content: " →";
  color: var(--sage);
}

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

/* ---------- pages: topics ---------- */
.page-topics .page-head {
  padding: 0 0 24px;
}

.page-topics .page-head .page-lead {
  max-width: 68ch;
}

.topic-index {
  padding: 0 0 24px;
}

.topic-index ul {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  padding: 14px 18px;
  background-color: var(--white);
  border: var(--line);
  border-radius: var(--radius);
}

.topic-index a {
  font-size: 14px;
  color: var(--lake);
  border-bottom: 1px solid transparent;
}

.topic-index a:hover {
  border-bottom-color: var(--amber);
}

.topic-items {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.topic-entry {
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr);
  gap: 28px;
  align-items: start;
  padding-bottom: 32px;
  border-bottom: var(--line);
}

.topic-entry:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.topic-entry .topic-figure {
  min-width: 0;
}

.topic-body {
  min-width: 0;
}

.topic-body h2 {
  font-size: 22px;
  margin-bottom: 8px;
}

.topic-angle {
  font-size: 15px;
  color: var(--ink);
}

.topic-order {
  margin-top: 8px;
  font-size: 14px;
  color: var(--sage);
}

.topic-body ul {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin: 12px 0;
  padding-left: 2px;
}

.topic-body ul li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
}

.topic-body ul li::before {
  content: "·";
  position: absolute;
  left: 4px;
  color: var(--amber);
  font-weight: 700;
}

.topic-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin-top: 12px;
}

.topic-links a {
  font-size: 14px;
  color: var(--lake);
  border-bottom: 1px solid var(--lake);
}

.topic-rules {
  padding: 40px 0 0;
}

.topic-rules h2 {
  font-size: 22px;
  margin-bottom: 16px;
}

.rule-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.rule-block {
  padding: 18px 20px;
  background-color: var(--white);
  border: var(--line);
  border-radius: var(--radius);
}

.rule-block h3 {
  font-size: 16px;
  margin-bottom: 6px;
}

.rule-block p {
  font-size: 14px;
  color: var(--sage);
}

.page-topics .related-links {
  margin-top: 36px;
}

/* ---------- pages: viewing-guide ---------- */
.page-viewing-guide .page-hero {
  padding-bottom: 20px;
}

.page-viewing-guide .page-layout > .content-main {
  padding-top: 0;
}

.step-block {
  padding: 0 0 28px;
  margin-bottom: 28px;
  border-bottom: var(--line);
}

.step-block:last-of-type {
  border-bottom: 0;
}

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

.step-index {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 600;
  color: var(--amber);
  letter-spacing: 0.06em;
  line-height: 1.2;
}

.step-title {
  font-size: 22px;
}

.step-body p {
  font-size: 15px;
}

.step-body .step-figure {
  margin: 14px 0;
}

.step-note {
  margin-top: 10px;
  padding: 10px 14px;
  background-color: var(--white);
  border-left: 3px solid var(--lake);
  border-radius: var(--radius);
  font-size: 14px;
  color: var(--lake);
}

.step-link {
  margin-top: 10px;
  font-size: 14px;
}

.step-link a {
  color: var(--lake);
  border-bottom: 1px solid var(--lake);
}

.deviation-block {
  padding: 8px 0 0;
}

.deviation-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 12px;
}

.deviation-item {
  padding: 14px 16px;
  background-color: var(--white);
  border: var(--line);
  border-radius: var(--radius);
}

.deviation-text {
  font-size: 15px;
  color: var(--ink);
}

.deviation-fix {
  margin-top: 4px;
  font-size: 14px;
  color: var(--sage);
}

.related-block {
  margin-top: 32px;
  padding-top: 20px;
  border-top: var(--line);
}

.content-side .side-block {
  padding: 20px;
  border-radius: var(--radius);
  margin-bottom: 20px;
}

.content-side .side-prep {
  background-color: var(--sand);
}

.content-side .side-check {
  background-color: var(--white);
  border: var(--line);
}

.content-side .side-title {
  font-size: 17px;
  margin-bottom: 12px;
}

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

.check-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
}

.check-box {
  flex: 0 0 auto;
  width: 15px;
  height: 15px;
  margin-top: 4px;
  border: 1px solid var(--lake);
  border-radius: 1px;
  background-color: var(--white);
}

.check-text {
  min-width: 0;
}

/* ---------- pages: entry-check ---------- */
.page-entry-check .page-header {
  padding-bottom: 8px;
}

.content-section {
  margin-bottom: 36px;
}

.content-figure {
  margin: 4px 0 20px;
}

.check-list .check-item {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 12px;
  padding: 14px 0;
  border-bottom: var(--line);
}

.check-num {
  font-family: var(--serif);
  font-size: 17px;
  font-weight: 600;
  color: var(--lake);
  letter-spacing: 0.06em;
}

.check-body {
  min-width: 0;
  font-size: 15px;
}

.check-title {
  display: block;
  font-family: var(--serif);
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 4px;
}

.signal-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}

.signal-item {
  padding: 16px 18px;
  background-color: var(--white);
  border: var(--line);
  border-left: 3px solid var(--amber);
  border-radius: var(--radius);
}

.signal-title {
  font-size: 16px;
  margin-bottom: 6px;
}

.signal-item p {
  font-size: 14px;
  color: var(--sage);
}

.page-entry-check .side-block {
  padding: 20px;
  border-radius: var(--radius);
  margin-bottom: 20px;
}

.page-entry-check #handling {
  background-color: var(--sand);
}

.page-entry-check #related {
  background-color: var(--white);
  border: var(--line);
}

.path-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.path-item {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: 8px;
  align-items: baseline;
}

.path-num {
  font-family: var(--serif);
  font-size: 14px;
  font-weight: 600;
  color: var(--amber);
  letter-spacing: 0.06em;
}

.path-item p {
  font-size: 14px;
  color: var(--ink);
}

.section-footer-links {
  padding: 12px 0 0;
}

/* ---------- pages: feedback ---------- */
.page-feedback .page-head {
  padding: 0 0 24px;
}

.category-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}

.category-item {
  padding: 18px 20px;
  background-color: var(--white);
  border: var(--line);
  border-radius: var(--radius);
}

.category-item h3 {
  font-size: 17px;
  margin-bottom: 6px;
}

.category-item p {
  font-size: 15px;
}

.category-hint {
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px dashed var(--sand);
  font-size: 13px;
  color: var(--lake);
}

.section-block {
  margin-bottom: 36px;
}

.section-block h2 {
  font-size: 22px;
  margin-bottom: 10px;
}

.section-figure {
  margin-top: 16px;
}

.step-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.step-item {
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr);
  gap: 12px;
  padding: 14px 16px;
  background-color: var(--white);
  border: var(--line);
  border-radius: var(--radius);
}

.step-item .step-num {
  grid-row: auto;
  font-family: var(--serif);
  font-size: 17px;
  font-weight: 600;
  color: var(--amber);
  letter-spacing: 0.06em;
}

.step-body {
  min-width: 0;
  font-size: 15px;
}

.inline-note {
  margin-top: 12px;
  font-size: 14px;
  color: var(--sage);
}

.info-box {
  margin-top: 16px;
  padding: 18px 20px;
  background-color: var(--white);
  border: var(--line);
  border-left: 3px solid var(--lake);
  border-radius: var(--radius);
}

.info-box h3 {
  font-size: 16px;
  margin-bottom: 10px;
}

.info-box .check-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px 20px;
}

.info-box .check-list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
}

.info-box .check-list li::before {
  content: "";
  position: absolute;
  top: 0.7em;
  left: 0;
  width: 5px;
  height: 5px;
  background-color: var(--amber);
  border-radius: 50%;
}

.section-foot {
  margin-top: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  font-size: 14px;
}

.section-foot a {
  color: var(--lake);
  border-bottom: 1px solid var(--lake);
}

.page-feedback .layout-side .side-block {
  padding: 20px;
  border-radius: var(--radius);
  margin-bottom: 20px;
  background-color: var(--sand);
}

.page-feedback .layout-side .side-block:nth-child(2) {
  background-color: var(--white);
  border: var(--line);
}

.page-feedback .layout-side h2 {
  font-size: 17px;
  margin-bottom: 12px;
}

.side-check-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 14px;
}

.side-check-list li {
  position: relative;
  padding-left: 16px;
}

.side-check-list li::before {
  content: "";
  position: absolute;
  top: 0.7em;
  left: 0;
  width: 5px;
  height: 5px;
  background-color: var(--lake);
  border-radius: 50%;
}

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

.side-link-list a {
  font-size: 14px;
  color: var(--lake);
}

.side-link-list a::after {
  content: " →";
  color: var(--sage);
}

/* ---------- pages: about ---------- */
.skip-link {
  position: absolute;
  left: 12px;
  top: -60px;
  z-index: 100;
  padding: 8px 16px;
  background-color: var(--white);
  border: 1px solid var(--lake);
  border-radius: var(--radius);
  font-size: 14px;
  color: var(--lake);
  transition: top 0.15s ease;
}

.skip-link:focus {
  top: 12px;
}

.page-about .page-head {
  padding: 0 0 24px;
}

.main-column {
  min-width: 0;
}

.content-section {
  margin-bottom: 36px;
}

.content-section h2 {
  font-size: 22px;
  margin-bottom: 10px;
}

.boundary-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 12px;
}

.boundary-list li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
}

.boundary-list li::before {
  content: "×";
  position: absolute;
  left: 2px;
  top: 0;
  color: var(--amber);
  font-weight: 700;
}

.inline-figure {
  margin: 16px 0;
}

.layer-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin-top: 16px;
}

.layer-item {
  padding: 16px 18px;
  background-color: var(--white);
  border: var(--line);
  border-radius: var(--radius);
}

.layer-item h3 {
  font-size: 16px;
  margin-bottom: 6px;
}

.layer-item p {
  font-size: 14px;
  color: var(--sage);
}

.note-text {
  margin-top: 16px;
  padding: 12px 16px;
  background-color: rgba(226, 217, 201, 0.5);
  border-left: 3px solid var(--lake);
  border-radius: var(--radius);
  font-size: 14px;
}

.table-wrap {
  width: 100%;
  overflow-x: auto;
  margin-top: 12px;
}

.term-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  background-color: var(--white);
}

.term-table th,
.term-table td {
  padding: 10px 14px;
  text-align: left;
  border-bottom: var(--line);
  vertical-align: top;
}

.term-table th {
  font-family: var(--serif);
  font-size: 14px;
  font-weight: 600;
  color: var(--sage);
  border-bottom: 1px solid var(--lake);
  white-space: nowrap;
}

.term-table tbody tr:nth-child(even) {
  background-color: rgba(226, 217, 201, 0.3);
}

.principle-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin-top: 12px;
}

.principle-item {
  padding: 16px 18px;
  border: var(--line);
  border-radius: var(--radius);
  background-color: var(--white);
}

.principle-item h3 {
  font-size: 16px;
  margin-bottom: 6px;
}

.principle-item p {
  font-size: 14px;
  color: var(--sage);
}

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

.quick-panel {
  padding: 20px;
  background-color: var(--sand);
  border-radius: var(--radius);
  margin-bottom: 20px;
}

.quick-panel h2 {
  font-size: 17px;
  margin-bottom: 12px;
}

.quick-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 14px;
}

.quick-list li {
  position: relative;
  padding-left: 16px;
}

.quick-list li::before {
  content: "";
  position: absolute;
  top: 0.7em;
  left: 0;
  width: 5px;
  height: 5px;
  background-color: var(--lake);
  border-radius: 50%;
}

.quick-links {
  padding: 20px;
  background-color: var(--white);
  border: var(--line);
  border-radius: var(--radius);
}

.quick-links h2 {
  font-size: 17px;
  margin-bottom: 12px;
}

.quick-links ul {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.quick-links a {
  font-size: 14px;
  color: var(--lake);
}

.quick-links a::after {
  content: " →";
  color: var(--sage);
}

/* ---------- pages: 404 ---------- */
.error-main {
  padding: 64px 0 48px;
}

.error-wrap {
  max-width: 680px;
}

.error-code {
  margin: 0 0 8px;
  font-family: var(--serif);
  font-size: 14px;
  letter-spacing: 0.06em;
  color: var(--amber);
}

.error-main h1 {
  font-size: clamp(26px, 3.2vw, 38px);
  margin-bottom: 14px;
}

.error-lead {
  font-size: 16px;
  color: var(--sage);
}

.error-paths {
  margin: 28px 0;
  padding-top: 20px;
  border-top: var(--line);
}

.error-paths h2 {
  font-size: 18px;
  margin-bottom: 12px;
}

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

.error-path-list a {
  font-size: 15px;
  color: var(--lake);
  border-bottom: 1px solid var(--lake);
}

.error-note {
  font-size: 14px;
  color: var(--sage);
}

.error-home {
  display: inline-block;
  margin-top: 20px;
  padding: 10px 22px;
  background-color: var(--amber);
  color: var(--white);
  border-radius: var(--radius);
  font-size: 15px;
}

.error-home:hover {
  background-color: #a9611f;
  color: var(--white);
}

/* ---------- responsive ---------- */
@media (max-width: 1024px) {
  .page-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
  }

  .page-layout > .side-col,
  .page-layout > .content-aside,
  .page-layout > .content-side,
  .page-layout > .side-column,
  .page-layout > .layout-side {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 16px;
    align-items: start;
  }

  .page-layout > .side-col > *,
  .page-layout > .content-aside > *,
  .page-layout > .content-side > *,
  .page-layout > .side-column > *,
  .page-layout > .layout-side > * {
    margin-bottom: 0;
  }

  .prep-section .side-col .side-box {
    position: static;
  }

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

  .topic-entry {
    grid-template-columns: 240px minmax(0, 1fr);
    gap: 22px;
  }

  .footer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
  }
}

@media (max-width: 900px) {
  .header-inner {
    gap: 16px;
  }

  .header-note {
    display: none;
  }

  .nav-toggle {
    display: flex;
    margin-left: auto;
  }

  .site-nav {
    flex: 0 0 auto;
  }

  .nav-list {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    z-index: 60;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    max-height: calc(100vh - 72px);
    overflow-y: auto;
    padding: 8px 24px 16px;
    background-color: var(--paper);
    border-bottom: 1px solid var(--ink);
    box-shadow: 0 12px 24px rgba(25, 24, 23, 0.1);
  }

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

  .nav-list > li {
    border-bottom: var(--line);
  }

  .nav-link {
    display: flex;
    align-items: center;
    min-height: 44px;
    padding: 10px 0;
    border-bottom: 0;
  }

  .nav-link.is-current {
    color: var(--amber);
    border-bottom: 0;
  }

  .nav-panel {
    position: static;
    display: none;
    grid-template-columns: minmax(0, 1fr);
    gap: 14px;
    padding: 8px 0 14px 12px;
    border: 0;
    border-left: 2px solid var(--sand);
    border-radius: 0;
    box-shadow: none;
    background-color: transparent;
  }

  .has-panel:hover .nav-panel,
  .has-panel:focus-within .nav-panel {
    display: none;
  }

  .has-panel.is-open .nav-panel {
    display: grid;
  }

  .panel-col a {
    display: flex;
    align-items: center;
    min-height: 44px;
    padding: 6px 0;
  }
}

@media (max-width: 720px) {
  .container {
    padding: 0 18px;
  }

  .header-inner {
    padding: 12px 18px;
  }

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

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

  .nav-list {
    padding: 8px 18px 16px;
  }

  .hero {
    padding: 28px 0 0;
  }

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

  .hero-copy h1 {
    font-size: 28px;
  }

  .hero-lead {
    max-width: none;
  }

  .hero-actions {
    gap: 10px;
  }

  .btn-primary,
  .btn-ghost {
    flex: 1 1 auto;
    text-align: center;
    padding: 12px 16px;
  }

  .channel-index {
    margin-top: 28px;
  }

  .index-list li {
    grid-template-columns: 36px minmax(0, 1fr);
    gap: 4px 10px;
  }

  .index-desc {
    grid-column: 2;
  }

  .topics-strip,
  .prep-section,
  .check-note,
  .faq-section {
    padding-top: 36px;
  }

  .topic-item {
    grid-template-columns: minmax(0, 1fr);
    gap: 14px;
  }

  .entry-body h3 {
    font-size: 18px;
  }

  .step {
    grid-template-columns: 32px minmax(0, 1fr);
    padding: 16px;
  }

  .step-num {
    font-size: 18px;
  }

  .note-box {
    padding: 16px;
  }

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

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

  .channel-table li {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 4px 10px;
  }

  .range-note {
    grid-column: 1 / -1;
  }

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

  .topic-entry {
    grid-template-columns: minmax(0, 1fr);
    gap: 16px;
  }

  .topic-body h2 {
    font-size: 20px;
  }

  .step-head {
    gap: 10px;
  }

  .step-title {
    font-size: 19px;
  }

  .step-index {
    font-size: 19px;
  }

  .check-list .check-item {
    grid-template-columns: 32px minmax(0, 1fr);
  }

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

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

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

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

  .term-table th,
  .term-table td {
    padding: 8px 10px;
  }

  .footer-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 22px;
    padding-top: 28px;
  }

  .footer-bottom-inner {
    flex-direction: column;
  }

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

  .error-main {
    padding: 40px 0 32px;
  }

  .page-layout > .side-col,
  .page-layout > .content-aside,
  .page-layout > .content-side,
  .page-layout > .side-column,
  .page-layout > .layout-side {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition: none !important;
    animation: none !important;
  }
}

/* 程序验收反馈：移动端防溢出 */
@media (max-width: 768px) {
  .site-main,
  .site-main * {
    min-width: 0;
    max-width: 100%;
  }

  .site-main :is(h1, h2, h3, h4, p, a, span) {
    overflow-wrap: anywhere;
  }
}