/* ==========================================================================
   麻豆天美传媒 · 全站样式
   分组：base / layout / components / pages / responsive
   ========================================================================== */

/* ==========================================================================
   base · 基础重置与全局变量
   ========================================================================== */
:root {
  --bg-page: #F6F4F0;
  --bg-surface: #FFFFFF;
  --ink: #2B2825;
  --ink-soft: #6A6560;
  --line: #D9D4CC;
  --line-strong: #C4BDB3;
  --action: #2F2B27;

  --dot-blue: #6B7C8C;
  --dot-green: #7A8A78;
  --dot-brown: #9A8574;
  --dot-purple: #837A8C;
  --dot-orange: #A88A72;
  --dot-cyan: #6E8585;

  --content-max: 1080px;
  --reading-max: 780px;
  --side-width: 220px;
  --gap-col: 48px;

  --radius: 2px;
  --font-stack: -apple-system, "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
}

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

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

body {
  margin: 0;
  background-color: var(--bg-page);
  color: var(--ink);
  font-family: var(--font-stack);
  font-size: 15px;
  line-height: 1.8;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0;
  color: var(--ink);
  font-weight: 600;
  line-height: 1.5;
}

p {
  margin: 0;
}

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

li {
  list-style: none;
}

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

a:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

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

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

figure {
  margin: 0;
}

figcaption {
  color: var(--ink-soft);
  font-size: 13.5px;
  line-height: 1.7;
}

::selection {
  background: #E4DFD6;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: 12px;
  top: -64px;
  z-index: 40;
  padding: 10px 16px;
  background: var(--action);
  color: #fff;
  border-radius: var(--radius);
  transition: top 0.18s ease;
}

.skip-link:focus {
  top: 12px;
  text-decoration: none;
}

/* 色标点：全站统一规格 */
.dot,
.scene-dot,
.footer-dot,
.cap-dot,
.tag-dot,
.title-dot,
.section-dot,
.intro-dot,
.page-head-dot,
.compare-dot {
  display: inline-block;
  width: 12px;
  height: 12px;
  border-radius: 1px;
  flex: 0 0 auto;
}

.dot-blue,
.scene-dot.dot-blue,
.footer-dot.dot-blue,
.cap-dot.dot-blue,
.tag-dot.dot-blue,
.title-dot.dot-blue,
.section-dot.dot-blue,
.intro-dot.dot-blue,
.page-head-dot.dot-blue,
.compare-dot.dot-blue {
  background-color: var(--dot-blue);
}

.dot-green,
.scene-dot.dot-green,
.footer-dot.dot-green,
.cap-dot.dot-green,
.tag-dot.dot-green,
.title-dot.dot-green,
.section-dot.dot-green,
.intro-dot.dot-green,
.page-head-dot.dot-green,
.compare-dot.dot-green {
  background-color: var(--dot-green);
}

.dot-brown,
.scene-dot.dot-brown,
.footer-dot.dot-brown,
.cap-dot.dot-brown,
.tag-dot.dot-brown,
.title-dot.dot-brown,
.section-dot.dot-brown,
.intro-dot.dot-brown,
.page-head-dot.dot-brown,
.compare-dot.dot-brown {
  background-color: var(--dot-brown);
}

.dot-purple,
.scene-dot.dot-purple,
.footer-dot.dot-purple,
.cap-dot.dot-purple,
.tag-dot.dot-purple,
.title-dot.dot-purple,
.section-dot.dot-purple,
.intro-dot.dot-purple,
.page-head-dot.dot-purple,
.compare-dot.dot-purple {
  background-color: var(--dot-purple);
}

.dot-orange,
.scene-dot.dot-orange,
.footer-dot.dot-orange,
.cap-dot.dot-orange,
.tag-dot.dot-orange,
.title-dot.dot-orange,
.section-dot.dot-orange,
.intro-dot.dot-orange,
.page-head-dot.dot-orange,
.compare-dot.dot-orange {
  background-color: var(--dot-orange);
}

.dot-cyan,
.scene-dot.dot-cyan,
.footer-dot.dot-cyan,
.cap-dot.dot-cyan,
.tag-dot.dot-cyan,
.title-dot.dot-cyan,
.section-dot.dot-cyan,
.intro-dot.dot-cyan,
.page-head-dot.dot-cyan,
.compare-dot.dot-cyan {
  background-color: var(--dot-cyan);
}

/* 类别标签：小方块 + 文字 */
.scene-tag,
.focus-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
  text-transform: none;
}

/* ==========================================================================
   layout · 页头 / 导航 / 主容器 / 页脚
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  background-color: rgba(246, 244, 240, 0.94);
  backdrop-filter: saturate(140%) blur(6px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  position: relative;
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: flex-start;
  gap: 40px;
}

.brand {
  flex: 0 0 auto;
  font-size: 17px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--ink);
  padding-top: 4px;
  white-space: nowrap;
}

.brand:hover {
  text-decoration: none;
  color: var(--action);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  margin-left: auto;
  padding: 12px 10px;
  flex-direction: column;
  justify-content: space-between;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background-color: var(--bg-surface);
}

.nav-toggle-bar {
  display: block;
  width: 100%;
  height: 1.5px;
  background-color: var(--ink);
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.site-nav {
  display: flex;
  flex: 1 1 auto;
  gap: 44px;
  justify-content: flex-end;
}

.nav-group {
  min-width: 0;
}

.nav-group-title {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink);
  font-weight: 600;
  padding-bottom: 2px;
}

.nav-group-note {
  font-size: 12px;
  line-height: 1.6;
  color: var(--ink-soft);
  max-width: 210px;
  margin-bottom: 8px;
}

.nav-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.nav-list li a {
  display: inline-block;
  padding: 4px 0;
  font-size: 14px;
  color: var(--ink);
  border-bottom: 1px solid transparent;
  transition: color 0.16s ease, border-color 0.16s ease;
}

.nav-list li a:hover {
  color: var(--action);
  text-decoration: none;
  border-bottom-color: var(--line-strong);
}

.nav-list li a.is-current {
  border-bottom-color: var(--action);
  font-weight: 600;
}

.site-main {
  display: block;
}

.inner-main {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 24px 72px;
}

/* 面包屑 */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  padding: 22px 0 0;
  font-size: 13px;
  color: var(--ink-soft);
}

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

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

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

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

.breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.breadcrumb-list li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--ink-soft);
}

.breadcrumb-list li + li::before {
  content: "/";
  color: var(--line-strong);
}

/* 页面标题区 */
.page-header {
  padding: 18px 0 20px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 36px;
}

.page-title {
  font-size: 28px;
  line-height: 1.4;
  font-weight: 600;
  color: var(--ink);
}

/* 双栏布局：主内容在前，侧栏在后 */
.page-layout {
  display: grid;
  grid-template-columns: minmax(0, var(--reading-max)) var(--side-width);
  gap: var(--gap-col);
  align-items: start;
}

.layout-shell {
  grid-template-columns: minmax(0, 1fr) var(--side-width);
}

.layout-main,
.page-main-col,
.faq-body {
  min-width: 0;
}

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

/* 页脚 */
.site-footer {
  border-top: 1px solid var(--line);
  background-color: var(--bg-page);
  margin-top: 24px;
}

.footer-inner {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 48px 24px 32px;
  display: grid;
  grid-template-columns: 1.4fr repeat(4, minmax(0, 1fr));
  gap: 36px;
}

.footer-brand-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 8px;
}

.footer-brand-desc {
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-soft);
  max-width: 30ch;
}

.footer-col-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  letter-spacing: 0.08em;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 12px;
}

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

.footer-col ul li a {
  font-size: 13.5px;
  color: var(--ink-soft);
  line-height: 1.6;
}

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

.footer-bottom {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 16px 24px 40px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  justify-content: space-between;
  font-size: 12.5px;
  color: var(--ink-soft);
  line-height: 1.7;
}

.footer-copy {
  color: var(--ink-soft);
}

/* ==========================================================================
   components · 通用条目、按钮、列表、折叠
   ========================================================================== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 10px 22px;
  background-color: var(--action);
  color: #fff;
  font-size: 14px;
  border-radius: var(--radius);
  transition: background-color 0.18s ease;
}

.btn-primary:hover {
  background-color: #1c1917;
  text-decoration: none;
}

.btn-text {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 44px;
  padding: 10px 4px;
  font-size: 14px;
  color: var(--ink);
  border-bottom: 1px solid var(--line-strong);
  transition: border-color 0.18s ease, color 0.18s ease;
}

.btn-text:hover {
  color: var(--action);
  border-bottom-color: var(--action);
  text-decoration: none;
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 10px 22px;
  border: 1px solid var(--line-strong);
  color: var(--ink);
  font-size: 14px;
  border-radius: var(--radius);
  background-color: var(--bg-surface);
  transition: border-color 0.18s ease;
}

.btn-ghost:hover {
  border-color: var(--action);
  text-decoration: none;
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--ink);
  padding: 8px 0;
  border-bottom: 1px solid var(--line);
  transition: border-color 0.18s ease;
}

.link-arrow span::after {
  content: "→";
  margin-left: 6px;
  transition: transform 0.18s ease;
  display: inline-block;
}

.link-arrow:hover {
  border-bottom-color: var(--action);
  text-decoration: none;
}

.link-arrow:hover span::after {
  transform: translateX(3px);
}

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

.section-head h2 {
  font-size: 19px;
  line-height: 1.5;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.section-head h2::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 14px;
  background-color: var(--dot-brown);
  border-radius: 1px;
  flex: 0 0 auto;
}

.section-note {
  font-size: 13.5px;
  color: var(--ink-soft);
  line-height: 1.7;
  max-width: 62ch;
}

.section-intro,
.section-lead,
.block-intro {
  font-size: 13.5px;
  color: var(--ink-soft);
  line-height: 1.75;
  margin-bottom: 20px;
  max-width: 62ch;
}

/* 折叠问答：原生 details */
.faq-item {
  border-bottom: 1px solid var(--line);
}

.faq-item summary {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 32px 16px 0;
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.7;
  color: var(--ink);
  list-style: none;
}

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

.faq-item summary::after {
  content: "";
  position: absolute;
  right: 6px;
  top: 24px;
  width: 8px;
  height: 8px;
  border-right: 1.5px solid var(--ink-soft);
  border-bottom: 1.5px solid var(--ink-soft);
  transform: rotate(45deg);
  transition: transform 0.2s ease;
}

.faq-item[open] summary::after {
  transform: rotate(-135deg);
}

.faq-item summary:hover {
  color: var(--action);
}

.faq-item p {
  padding: 0 32px 18px 0;
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.8;
  max-width: 62ch;
}

/* 相邻入口卡片 */
.adjacent-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.adjacent-card,
.adjacent-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 20px;
  background-color: var(--bg-surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color 0.18s ease;
}

.adjacent-card:hover,
.adjacent-item:hover {
  border-color: var(--line-strong);
  text-decoration: none;
}

.adjacent-title,
.adjacent-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
}

.adjacent-desc {
  font-size: 13px;
  color: var(--ink-soft);
  line-height: 1.7;
}

.adjacent-arrow {
  margin-top: 6px;
  font-size: 13px;
  color: var(--ink-soft);
}

.adjacent-arrow::after {
  content: "→";
  margin-left: 6px;
}

.adjacent-links,
.related-section {
  padding: 32px 0 0;
}

.adjacent-links h2,
.related-section h2 {
  font-size: 16px;
  margin-bottom: 16px;
}

.adjacent-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

/* 相关内容横条 */
.related-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 20px;
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  font-size: 13px;
}

.related-links-label {
  color: var(--ink-soft);
  letter-spacing: 0.04em;
}

.related-links-item {
  color: var(--ink);
  border-bottom: 1px solid var(--line);
  padding-bottom: 2px;
}

.related-links-item:hover {
  border-bottom-color: var(--action);
  text-decoration: none;
}

/* 侧栏通用 */
.side-block,
.side-box {
  padding: 20px;
  background-color: var(--bg-surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  margin-bottom: 20px;
}

.side-title,
.aside-title {
  font-size: 13px;
  letter-spacing: 0.06em;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.side-points,
.side-list,
.side-point-list,
.aside-key-list,
.aside-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.side-points li,
.side-list li,
.side-point-list li,
.aside-key-list li,
.aside-list li {
  position: relative;
  padding-left: 14px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-soft);
}

.side-points li::before,
.side-list li::before,
.side-point-list li::before,
.aside-key-list li::before,
.aside-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 1px;
  background-color: var(--line-strong);
}

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

.side-links li a,
.side-link-list li a,
.aside-links li a,
.aside-nav-list li a {
  font-size: 13px;
  color: var(--ink);
  line-height: 1.6;
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
}

.side-links li a:hover,
.side-link-list li a:hover,
.aside-links li a:hover,
.aside-nav-list li a:hover {
  border-bottom-color: var(--line-strong);
  text-decoration: none;
}

/* 图片容器统一约束 */
.hero-media img,
.focus-media img,
.cap-figure img,
.section-media img,
.content-figure img,
.scene-figure img,
.feedback-figure img,
.aside-figure img,
.media-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius);
  background-color: #E9E5DE;
}

.hero-media,
.focus-media,
.cap-figure,
.section-media,
.content-figure,
.scene-figure,
.feedback-figure,
.aside-figure,
.media-figure {
  margin: 0;
}

.hero-media figcaption,
.focus-media figcaption,
.cap-figure figcaption,
.section-media figcaption,
.content-figure figcaption,
.scene-figure figcaption,
.feedback-figure figcaption,
.aside-figure figcaption,
.media-figure figcaption {
  margin-top: 10px;
  font-size: 12.5px;
  color: var(--ink-soft);
  line-height: 1.7;
}

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

.hero {
  padding: 56px 0 64px;
  border-bottom: 1px solid var(--line);
}

.hero-inner {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 56px;
  align-items: start;
}

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

.hero-eyebrow {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.hero-eyebrow::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 12px;
  background-color: var(--dot-blue);
  border-radius: 1px;
}

.hero-text h1 {
  font-size: 28px;
  line-height: 1.4;
  font-weight: 600;
  margin-bottom: 16px;
}

.hero-lead {
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
  margin-bottom: 24px;
  max-width: 34ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 20px;
  margin-bottom: 36px;
}

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

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

.service-item a {
  display: grid;
  grid-template-columns: 32px 1fr 20px;
  align-items: center;
  gap: 14px;
  padding: 16px 4px 16px 12px;
  border-left: 2px solid transparent;
  transition: border-color 0.18s ease, background-color 0.18s ease;
}

.service-item a:hover {
  border-left-color: var(--dot-blue);
  background-color: rgba(255, 255, 255, 0.6);
  text-decoration: none;
}

.service-num {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
  font-variant-numeric: tabular-nums;
}

.service-body {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.service-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
}

.service-desc {
  font-size: 13px;
  color: var(--ink-soft);
  line-height: 1.7;
}

.service-arrow {
  font-size: 14px;
  color: var(--ink-soft);
  justify-self: end;
  transition: transform 0.18s ease;
}

.service-item a:hover .service-arrow {
  transform: translateX(3px);
  color: var(--ink);
}

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

.hero-media img {
  aspect-ratio: 4 / 5;
  height: auto;
}

/* 交付目录 */
.delivery {
  padding: 56px 0;
  border-bottom: 1px solid var(--line);
}

.delivery > .section-head,
.delivery > .delivery-grid,
.scene-quick > .section-head,
.scene-quick > .scene-quick-list,
.cadence-preview > .section-head,
.cadence-preview > .cadence-list,
.scope > .section-head,
.scope > .scope-grid,
.faq-preview > .section-head,
.faq-preview > .faq-list,
.help-band > .help-band-inner {
  max-width: var(--content-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

.delivery-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 40px;
}

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

.delivery-col h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.delivery-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.delivery-row {
  display: grid;
  grid-template-columns: minmax(120px, 0.9fr) minmax(0, 1.4fr);
  gap: 16px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--line);
}

.delivery-row dt {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ink);
}

.delivery-row dd {
  font-size: 13px;
  color: var(--ink-soft);
  line-height: 1.7;
}

/* 需求场景快速分类 */
.scene-quick {
  padding: 56px 0;
  border-bottom: 1px solid var(--line);
}

.scene-quick-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  border-top: 1px solid var(--line);
}

.scene-quick-item {
  display: grid;
  grid-template-columns: 12px 1fr;
  grid-template-rows: auto auto;
  gap: 4px 12px;
  align-items: start;
  padding: 18px 24px 18px 0;
  border-bottom: 1px solid var(--line);
  border-right: 1px solid var(--line);
}

.scene-quick-item:nth-child(3n) {
  border-right: 0;
  padding-right: 0;
}

.scene-quick-item .scene-dot {
  grid-row: 1 / span 2;
  margin-top: 6px;
}

.scene-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
}

.scene-desc {
  font-size: 13px;
  color: var(--ink-soft);
  line-height: 1.7;
}

/* 焦点条目 */
.focus {
  padding: 56px 0;
  border-bottom: 1px solid var(--line);
}

.focus-inner {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  gap: 40px;
  align-items: center;
}

.focus-media img {
  aspect-ratio: 16 / 10;
  height: auto;
}

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

.focus-tag {
  margin-bottom: 12px;
}

.focus-text h2 {
  font-size: 19px;
  line-height: 1.5;
  margin-bottom: 12px;
}

.focus-text p {
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.8;
  margin-bottom: 16px;
  max-width: 46ch;
}

/* 推进节奏预览 */
.cadence-preview {
  display: flex;
  flex-direction: column;
  padding: 56px 0;
  border-bottom: 1px solid var(--line);
}

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

.cadence-item {
  display: grid;
  grid-template-columns: 200px minmax(0, 1fr);
  gap: 32px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
  align-items: start;
}

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

.cadence-num {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
  font-variant-numeric: tabular-nums;
}

.cadence-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  position: relative;
  padding-left: 12px;
}

.cadence-name::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 6px;
  height: 6px;
  margin-top: -3px;
  background-color: var(--dot-brown);
  border-radius: 1px;
}

.cadence-body {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.cadence-action {
  font-size: 14px;
  color: var(--ink);
  line-height: 1.8;
}

.cadence-end {
  font-size: 13px;
  color: var(--ink-soft);
  line-height: 1.7;
}

.cadence-preview > .link-arrow {
  align-self: center;
  margin-top: 24px;
}

/* 交付范围与不包含对照 */
.scope {
  display: flex;
  flex-direction: column;
  padding: 56px 0;
  border-bottom: 1px solid var(--line);
}

.scope-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0;
  border-top: 1px solid var(--line);
}

.scope-col {
  padding: 24px 32px 24px 0;
  min-width: 0;
}

.scope-col + .scope-col {
  border-left: 1px solid var(--line);
  padding-left: 32px;
  padding-right: 0;
}

.scope-col h3 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 14px;
}

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

.scope-list li {
  position: relative;
  padding-left: 16px;
  font-size: 13.5px;
  color: var(--ink-soft);
  line-height: 1.75;
}

.scope-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 6px;
  height: 1px;
  background-color: var(--line-strong);
}

.scope > .link-arrow {
  align-self: center;
  margin-top: 24px;
}

/* 常见问题预览 */
.faq-preview {
  display: flex;
  flex-direction: column;
  padding: 56px 0;
  border-bottom: 1px solid var(--line);
}

.faq-list {
  border-top: 1px solid var(--line);
}

.faq-preview > .link-arrow {
  align-self: center;
  margin-top: 20px;
}

/* 帮助入口带 */
.help-band {
  padding: 56px 0;
}

.help-band-inner {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.help-entry {
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-rows: auto auto;
  gap: 6px 20px;
  padding: 24px;
  background-color: var(--bg-surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color 0.18s ease;
}

.help-entry:hover {
  border-color: var(--line-strong);
  text-decoration: none;
}

.help-entry-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
}

.help-entry-desc {
  font-size: 13px;
  color: var(--ink-soft);
  line-height: 1.7;
  grid-column: 1 / 2;
}

.help-entry-arrow {
  grid-column: 2 / 3;
  grid-row: 1 / span 2;
  align-self: center;
  font-size: 16px;
  color: var(--ink-soft);
  transition: transform 0.18s ease;
}

.help-entry:hover .help-entry-arrow {
  transform: translateX(4px);
  color: var(--ink);
}

/* ==========================================================================
   pages · 需求场景索引
   ========================================================================== */
.page-head {
  padding: 0 0 28px;
  margin-bottom: 0;
}

.page-kicker {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
  margin-bottom: 8px;
}

.page-lead {
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.8;
  max-width: 62ch;
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 20px;
  background-color: var(--bg-surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  margin-bottom: 32px;
}

.filter-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.filter-btn {
  min-height: 36px;
  padding: 6px 14px;
  font-size: 13px;
  color: var(--ink-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background-color: var(--bg-page);
  transition: color 0.16s ease, border-color 0.16s ease, background-color 0.16s ease;
}

.filter-btn:hover {
  border-color: var(--line-strong);
  color: var(--ink);
}

.filter-btn.is-active {
  background-color: var(--action);
  border-color: var(--action);
  color: #fff;
}

.filter-status {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--ink-soft);
}

.filter-current-value,
.filter-count-value {
  color: var(--ink);
  font-weight: 600;
}

.filter-clear {
  min-height: 36px;
  padding: 6px 12px;
  font-size: 13px;
  color: var(--ink);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background-color: var(--bg-surface);
  transition: border-color 0.16s ease;
}

.filter-clear:hover {
  border-color: var(--action);
}

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

.scene-item {
  padding: 24px 0 24px 16px;
  border-bottom: 1px solid var(--line);
  border-left: 2px solid transparent;
  transition: border-color 0.18s ease;
}

.scene-item:hover {
  border-left-color: var(--dot-blue);
}

.scene-tag {
  margin-bottom: 8px;
}

.scene-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--ink);
}

.scene-fields {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr);
  gap: 6px 20px;
  margin-bottom: 12px;
}

.scene-fields dt {
  font-size: 13px;
  color: var(--ink-soft);
  letter-spacing: 0.02em;
}

.scene-fields dd {
  font-size: 13.5px;
  color: var(--ink);
  line-height: 1.75;
}

.scene-link {
  font-size: 13.5px;
}

.scene-link a {
  color: var(--ink);
  border-bottom: 1px solid var(--line);
  padding-bottom: 2px;
}

.scene-link a:hover {
  border-bottom-color: var(--action);
  text-decoration: none;
}

.category-notes {
  padding: 40px 0 0;
  margin-top: 16px;
  border-top: 1px solid var(--line);
}

.category-notes h2 {
  font-size: 19px;
  margin-bottom: 12px;
}

.category-notes > p {
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.8;
  max-width: 62ch;
  margin-bottom: 20px;
}

.category-defs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px 32px;
}

.category-defs dt {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ink);
  padding-top: 8px;
}

.category-defs dd {
  font-size: 13px;
  color: var(--ink-soft);
  line-height: 1.7;
  margin-bottom: 8px;
}

.adjacent-links {
  margin-top: 40px;
  border-top: 1px solid var(--line);
}

.scene-figure {
  margin-top: 40px;
}

.scene-figure img {
  aspect-ratio: 16 / 7;
  height: auto;
}

/* ==========================================================================
   pages · 服务能力与交付范围
   ========================================================================== */
.page-hero {
  padding: 28px 0 24px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 40px;
}

.page-hero-inner {
  max-width: var(--reading-max);
}

.page-hero-tag {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
  margin-bottom: 8px;
}

.page-hero-lead,
.page-hero-note {
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.8;
  max-width: 62ch;
}

.cap-matrix {
  padding-bottom: 40px;
  border-bottom: 1px solid var(--line);
}

.cap-matrix h2,
.deliver-forms h2,
.scope-compare h2,
.cap-next h2 {
  font-size: 19px;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.cap-matrix h2::before,
.deliver-forms h2::before,
.scope-compare h2::before,
.cap-next h2::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 14px;
  background-color: var(--dot-green);
  border-radius: 1px;
  flex: 0 0 auto;
}

.cap-item {
  padding: 24px 0 24px 16px;
  border-top: 1px solid var(--line);
  border-left: 2px solid transparent;
}

.cap-item-blue {
  border-left-color: var(--dot-blue);
}

.cap-item-green {
  border-left-color: var(--dot-green);
}

.cap-item-brown {
  border-left-color: var(--dot-brown);
}

.cap-item-purple {
  border-left-color: var(--dot-purple);
}

.cap-name {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 14px;
}

.cap-block {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr);
  gap: 16px;
  padding: 8px 0;
  border-top: 1px dashed var(--line);
}

.cap-block-label {
  font-size: 12.5px;
  color: var(--ink-soft);
  letter-spacing: 0.04em;
}

.cap-block-text {
  font-size: 13.5px;
  color: var(--ink);
  line-height: 1.8;
}

.cap-figure {
  margin: 32px 0;
}

.cap-figure img {
  aspect-ratio: 16 / 9;
  height: auto;
}

.deliver-forms {
  padding: 40px 0;
  border-bottom: 1px solid var(--line);
}

.form-list {
  border-top: 1px solid var(--line);
}

.form-row {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 20px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.form-name {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ink);
}

.form-desc {
  font-size: 13.5px;
  color: var(--ink-soft);
  line-height: 1.8;
}

.scope-compare {
  padding: 40px 0;
  border-bottom: 1px solid var(--line);
}

.compare-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0;
  border-top: 1px solid var(--line);
}

.compare-col {
  padding: 20px 28px 20px 0;
  min-width: 0;
}

.compare-col + .compare-col {
  border-left: 1px solid var(--line);
  padding-left: 28px;
  padding-right: 0;
}

.compare-head {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.compare-include .compare-head::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 12px;
  background-color: var(--dot-green);
  border-radius: 1px;
}

.compare-exclude .compare-head::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 12px;
  background-color: var(--dot-orange);
  border-radius: 1px;
}

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

.compare-list li {
  position: relative;
  padding-left: 16px;
  font-size: 13.5px;
  color: var(--ink-soft);
  line-height: 1.75;
}

.compare-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 6px;
  height: 1px;
  background-color: var(--line-strong);
}

.cap-next {
  padding: 40px 0 0;
}

.next-links {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.next-link-item a {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 16px;
  background-color: var(--bg-surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color 0.18s ease;
}

.next-link-item a:hover {
  border-color: var(--line-strong);
  text-decoration: none;
}

.next-link-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
}

.next-link-desc {
  font-size: 12.5px;
  color: var(--ink-soft);
  line-height: 1.7;
}

/* ==========================================================================
   pages · 推进节奏与协作
   ========================================================================== */
.stage-section {
  padding-bottom: 40px;
  border-bottom: 1px solid var(--line);
}

.stage-section h2,
.convention-section h2,
.pitfall-section h2,
.related-section h2 {
  font-size: 19px;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.stage-section h2::before,
.convention-section h2::before,
.pitfall-section h2::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 14px;
  background-color: var(--dot-brown);
  border-radius: 1px;
  flex: 0 0 auto;
}

.section-media {
  margin: 24px 0;
}

.section-media img {
  aspect-ratio: 16 / 9;
  height: auto;
}

.stage-list {
  border-top: 1px solid var(--line);
}

.stage-item {
  display: grid;
  grid-template-columns: 200px minmax(0, 1fr);
  gap: 32px;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
  align-items: start;
}

.stage-head {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.stage-no {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
  font-variant-numeric: tabular-nums;
}

.stage-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  position: relative;
  padding-left: 14px;
}

.stage-name::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 6px;
  height: 14px;
  margin-top: -7px;
  background-color: var(--dot-brown);
  border-radius: 1px;
}

.stage-body {
  min-width: 0;
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr);
  gap: 6px 20px;
}

.stage-label {
  font-size: 12.5px;
  color: var(--ink-soft);
  letter-spacing: 0.02em;
}

.stage-desc {
  font-size: 13.5px;
  color: var(--ink);
  line-height: 1.8;
}

.stage-line {
  grid-column: 1 / -1;
  height: 1px;
  background-color: var(--line);
  margin: 6px 0;
  display: none;
}

.convention-section {
  padding: 40px 0;
  border-bottom: 1px solid var(--line);
}

.convention-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.convention-item {
  padding: 16px 18px;
  background-color: var(--bg-surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.convention-item h3 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 6px;
}

.convention-item p {
  font-size: 13.5px;
  color: var(--ink-soft);
  line-height: 1.8;
}

.pitfall-section {
  padding: 40px 0;
  border-bottom: 1px solid var(--line);
}

.pitfall-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.pitfall-item {
  padding-left: 16px;
  border-left: 2px solid var(--dot-orange);
}

.pitfall-item h3 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 6px;
}

.pitfall-item p {
  font-size: 13.5px;
  color: var(--ink-soft);
  line-height: 1.8;
}

.related-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.related-list li a {
  display: block;
  padding: 14px 16px;
  font-size: 14px;
  color: var(--ink);
  background-color: var(--bg-surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color 0.18s ease;
}

.related-list li a:hover {
  border-color: var(--line-strong);
  text-decoration: none;
}

/* ==========================================================================
   pages · 沟通前准备
   ========================================================================== */
.page-hero {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.page-hero .section-dot {
  margin-top: 8px;
}

.content-block {
  padding-bottom: 32px;
  margin-bottom: 32px;
  border-bottom: 1px solid var(--line);
}

.content-block:last-of-type {
  border-bottom: 0;
  padding-bottom: 0;
  margin-bottom: 24px;
}

.content-block h2 {
  font-size: 19px;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.content-block h2::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 14px;
  background-color: var(--dot-blue);
  border-radius: 1px;
  flex: 0 0 auto;
}

.prep-checklist {
  margin-top: 8px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background-color: var(--bg-surface);
  overflow: hidden;
}

.prep-counter {
  padding: 12px 18px;
  font-size: 13px;
  color: var(--ink-soft);
  border-bottom: 1px solid var(--line);
  background-color: #FBF9F6;
}

.prep-counter-num {
  color: var(--ink);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

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

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

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

.prep-row {
  display: grid;
  grid-template-columns: 20px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 14px 18px;
  cursor: pointer;
  transition: background-color 0.16s ease;
}

.prep-row:hover {
  background-color: #FBF9F6;
}

.prep-check {
  width: 18px;
  height: 18px;
  margin-top: 3px;
  border: 1.5px solid var(--line-strong);
  border-radius: 2px;
  display: inline-block;
  position: relative;
  background-color: var(--bg-surface);
  transition: background-color 0.16s ease, border-color 0.16s ease;
}

.prep-row input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.prep-name {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 2px;
}

.prep-desc {
  display: block;
  font-size: 13px;
  color: var(--ink-soft);
  line-height: 1.7;
}

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

.plain-list li {
  position: relative;
  padding-left: 16px;
  font-size: 13.5px;
  color: var(--ink-soft);
  line-height: 1.75;
}

.plain-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 6px;
  height: 1px;
  background-color: var(--line-strong);
}

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

.step-item {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
  align-items: start;
}

.step-num {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
  font-variant-numeric: tabular-nums;
  padding-top: 3px;
}

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

.step-name {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 2px;
}

.step-body p {
  font-size: 13px;
  color: var(--ink-soft);
  line-height: 1.7;
}

.content-figure {
  margin-top: 8px;
}

.content-figure img {
  aspect-ratio: 16 / 9;
  height: auto;
}

/* ==========================================================================
   pages · 常见问题
   ========================================================================== */
.page-intro {
  padding: 0 0 28px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 36px;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
  margin-bottom: 8px;
}

.page-intro-note {
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.8;
  max-width: 62ch;
}

.faq-layout {
  grid-template-columns: minmax(0, var(--reading-max)) var(--side-width);
}

.faq-group {
  padding-bottom: 32px;
  margin-bottom: 32px;
  border-bottom: 1px solid var(--line);
}

.faq-group:last-of-type {
  border-bottom: 0;
}

.faq-group h2 {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 19px;
  margin-bottom: 8px;
}

.faq-group-note {
  font-size: 13px;
  color: var(--ink-soft);
  line-height: 1.7;
  margin-bottom: 16px;
  max-width: 62ch;
}

.faq-answer {
  padding: 0 32px 18px 0;
}

.faq-answer p {
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.8;
  margin-bottom: 10px;
  max-width: 62ch;
}

.faq-answer p:last-child {
  margin-bottom: 0;
}

.faq-uncovered {
  padding: 24px;
  background-color: var(--bg-surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.faq-uncovered h2 {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 16px;
  margin-bottom: 10px;
}

.faq-uncovered > p {
  font-size: 13.5px;
  color: var(--ink-soft);
  line-height: 1.8;
  max-width: 62ch;
  margin-bottom: 12px;
}

.faq-uncovered-link a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: var(--ink);
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 2px;
}

.faq-uncovered-link a:hover {
  border-bottom-color: var(--action);
  text-decoration: none;
}

.faq-uncovered-link a span::after {
  content: "→";
  margin-left: 6px;
}

.aside-figure {
  margin: 0 0 20px;
}

.aside-figure img {
  aspect-ratio: 4 / 3;
  height: auto;
}

.aside-block {
  padding: 20px;
  background-color: var(--bg-surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  margin-bottom: 20px;
}

/* ==========================================================================
   pages · 反馈与范围说明
   ========================================================================== */
.page-title-block {
  padding: 0 0 24px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 32px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.page-title-block .title-dot {
  margin-top: 8px;
}

.page-scope {
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.8;
  max-width: 62ch;
}

.feedback-paths,
.feedback-flow,
.excluded-scope {
  padding-bottom: 32px;
  margin-bottom: 32px;
  border-bottom: 1px solid var(--line);
}

.section-title {
  font-size: 19px;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.section-title::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 14px;
  background-color: var(--dot-orange);
  border-radius: 1px;
  flex: 0 0 auto;
}

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

.path-item {
  padding: 18px 20px;
  background-color: var(--bg-surface);
  border: 1px solid var(--line);
  border-left: 2px solid var(--dot-orange);
  border-radius: var(--radius);
}

.path-item h3 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 6px;
}

.path-cond {
  font-size: 12.5px;
  color: var(--ink-soft);
  letter-spacing: 0.02em;
  margin-bottom: 6px;
}

.path-desc {
  font-size: 13.5px;
  color: var(--ink);
  line-height: 1.8;
}

.flow-steps {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--line);
}

.flow-step {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
  align-items: start;
}

.flow-step .step-num {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
  font-variant-numeric: tabular-nums;
  padding-top: 3px;
}

.flow-step .step-body p {
  font-size: 13.5px;
  color: var(--ink-soft);
  line-height: 1.8;
}

.excluded-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 8px;
}

.excluded-list li {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  font-size: 13.5px;
  color: var(--ink-soft);
  line-height: 1.75;
}

.excluded-num {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
  font-variant-numeric: tabular-nums;
  padding-top: 2px;
}

.feedback-figure {
  margin: 32px 0;
}

.feedback-figure img {
  aspect-ratio: 16 / 9;
  height: auto;
}

/* ==========================================================================
   pages · 工作定位
   ========================================================================== */
.page-intro {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.intro-head {
  display: flex;
  align-items: center;
  gap: 8px;
}

.intro-note {
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.8;
  max-width: 62ch;
}

.section {
  padding-bottom: 32px;
  margin-bottom: 32px;
  border-bottom: 1px solid var(--line);
}

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

.section-title {
  font-size: 19px;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.section-title::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 14px;
  background-color: var(--dot-cyan);
  border-radius: 1px;
  flex: 0 0 auto;
}

.media-figure-wide {
  margin: 24px 0;
}

.media-figure-wide img {
  aspect-ratio: 16 / 9;
  height: auto;
}

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

.prose p {
  font-size: 14px;
  color: var(--ink);
  line-height: 1.85;
  max-width: 34em;
}

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

.principle-item {
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.principle-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 6px;
}

.principle-index {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
  font-variant-numeric: tabular-nums;
}

.principle-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
}

.principle-standard {
  font-size: 13.5px;
  color: var(--ink-soft);
  line-height: 1.8;
  padding-left: 24px;
}

.fit-compare {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0;
  border-top: 1px solid var(--line);
  margin-top: 8px;
}

.fit-col {
  padding: 20px 28px 20px 0;
  min-width: 0;
}

.fit-col + .fit-col {
  border-left: 1px solid var(--line);
  padding-left: 28px;
  padding-right: 0;
}

.fit-col-title {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.fit-yes .fit-col-title::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 12px;
  background-color: var(--dot-green);
  border-radius: 1px;
}

.fit-no .fit-col-title::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 12px;
  background-color: var(--dot-brown);
  border-radius: 1px;
}

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

.fit-list li {
  position: relative;
  padding-left: 16px;
  font-size: 13.5px;
  color: var(--ink-soft);
  line-height: 1.75;
}

.fit-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 6px;
  height: 1px;
  background-color: var(--line-strong);
}

.section-footnote {
  margin-top: 20px;
  font-size: 13.5px;
  color: var(--ink-soft);
  line-height: 1.8;
}

.section-footnote a {
  color: var(--ink);
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 2px;
}

.section-footnote a:hover {
  border-bottom-color: var(--action);
  text-decoration: none;
}

/* ==========================================================================
   pages · 404
   ========================================================================== */
.error-main {
  padding: 80px 0 96px;
}

.error-inner {
  max-width: 640px;
  margin: 0 auto;
  padding: 0 24px;
  text-align: left;
}

.error-code {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--ink-soft);
  margin-bottom: 12px;
}

.error-inner h1 {
  font-size: 28px;
  line-height: 1.4;
  margin-bottom: 14px;
}

.error-desc {
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.8;
  margin-bottom: 28px;
  max-width: 46ch;
}

.error-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 48px;
}

.error-links {
  border-top: 1px solid var(--line);
  padding-top: 24px;
}

.error-links h2 {
  font-size: 15px;
  margin-bottom: 14px;
}

.error-links ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.error-links ul li a {
  font-size: 14px;
  color: var(--ink);
  border-bottom: 1px solid var(--line);
  padding-bottom: 2px;
}

.error-links ul li a:hover {
  border-bottom-color: var(--action);
  text-decoration: none;
}

/* ==========================================================================
   responsive · 960px
   ========================================================================== */
@media (max-width: 960px) {
  .header-inner {
    padding: 14px 20px;
    gap: 20px;
    align-items: center;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    flex-direction: column;
    gap: 24px;
    padding: 20px;
    background-color: var(--bg-surface);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 8px 20px rgba(43, 40, 37, 0.06);
    max-height: calc(100vh - 60px);
    overflow-y: auto;
  }

  .nav-group-note {
    max-width: none;
  }

  .nav-list {
    display: none;
    gap: 0;
  }

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

  .nav-list li a {
    display: block;
    padding: 12px 0;
    min-height: 48px;
    border-bottom: 1px solid var(--line);
    font-size: 15px;
  }

  .nav-list li a.is-current {
    border-bottom-color: var(--action);
  }

  .hero-inner,
  .focus-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 32px;
  }

  .hero-media img {
    aspect-ratio: 16 / 9;
  }

  .delivery-grid,
  .scope-grid,
  .help-band-inner,
  .adjacent-grid,
  .adjacent-list,
  .next-links,
  .related-list,
  .compare-grid,
  .fit-compare,
  .category-defs {
    grid-template-columns: minmax(0, 1fr);
  }

  .scope-col + .scope-col,
  .compare-col + .compare-col,
  .fit-col + .fit-col {
    border-left: 0;
    border-top: 1px solid var(--line);
    padding-left: 0;
    padding-top: 20px;
  }

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

  .scene-quick-item:nth-child(3n) {
    border-right: 1px solid var(--line);
    padding-right: 24px;
  }

  .scene-quick-item:nth-child(2n) {
    border-right: 0;
    padding-right: 0;
  }

  .cadence-item,
  .stage-item {
    grid-template-columns: 160px minmax(0, 1fr);
    gap: 24px;
  }

  .page-layout,
  .layout-shell,
  .faq-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 32px;
  }

  .content-side,
  .layout-aside,
  .page-side,
  .page-aside {
    display: block;
  }

  .side-block,
  .side-box,
  .aside-block {
    margin-bottom: 16px;
  }

  .footer-inner {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 28px;
  }

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

  .form-row,
  .delivery-row,
  .cap-block {
    grid-template-columns: minmax(0, 1fr);
    gap: 4px;
  }

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

  .scene-fields {
    grid-template-columns: 100px minmax(0, 1fr);
  }
}

/* ==========================================================================
   responsive · 640px
   ========================================================================== */
@media (max-width: 640px) {
  body {
    font-size: 14.5px;
  }

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

  .brand {
    font-size: 16px;
    padding-top: 0;
  }

  .inner-main {
    padding: 0 16px 56px;
  }

  .hero {
    padding: 32px 0 40px;
  }

  .hero-inner,
  .focus-inner,
  .delivery > .section-head,
  .delivery > .delivery-grid,
  .scene-quick > .section-head,
  .scene-quick > .scene-quick-list,
  .cadence-preview > .section-head,
  .cadence-preview > .cadence-list,
  .scope > .section-head,
  .scope > .scope-grid,
  .faq-preview > .section-head,
  .faq-preview > .faq-list,
  .help-band > .help-band-inner {
    padding-left: 16px;
    padding-right: 16px;
  }

  .hero-text h1,
  .page-title,
  .error-inner h1 {
    font-size: 22px;
    line-height: 1.45;
  }

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

  .hero-actions {
    gap: 12px;
  }

  .btn-primary,
  .btn-ghost {
    width: 100%;
    justify-content: center;
  }

  .btn-text {
    width: 100%;
    justify-content: flex-start;
  }

  .service-item a {
    grid-template-columns: 26px 1fr 16px;
    gap: 10px;
  }

  .delivery,
  .scene-quick,
  .focus,
  .cadence-preview,
  .scope,
  .faq-preview,
  .help-band {
    padding: 40px 0;
  }

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

  .scene-quick-item,
  .scene-quick-item:nth-child(3n),
  .scene-quick-item:nth-child(2n) {
    border-right: 0;
    padding-right: 0;
  }

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

  .cadence-item,
  .stage-item {
    grid-template-columns: minmax(0, 1fr);
    gap: 10px;
    padding: 18px 0;
  }

  .cadence-preview > .link-arrow,
  .scope > .link-arrow,
  .faq-preview > .link-arrow {
    align-self: stretch;
    justify-content: flex-start;
  }

  .filter-bar {
    padding: 14px;
  }

  .filter-buttons {
    width: 100%;
  }

  .filter-btn {
    min-height: 40px;
  }

  .filter-status {
    width: 100%;
    justify-content: space-between;
  }

  .scene-fields {
    grid-template-columns: minmax(0, 1fr);
    gap: 2px;
    margin-bottom: 10px;
  }

  .scene-fields dt {
    color: var(--ink);
    font-weight: 600;
    margin-top: 8px;
  }

  .scene-item {
    padding-left: 12px;
  }

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

  .cap-block-label {
    font-weight: 600;
    color: var(--ink);
  }

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

  .footer-inner {
    grid-template-columns: minmax(0, 1fr);
    padding: 36px 16px 24px;
    gap: 24px;
  }

  .footer-bottom {
    padding: 16px 16px 32px;
    flex-direction: column;
  }

  .faq-item summary {
    padding: 14px 28px 14px 0;
    font-size: 14.5px;
  }

  .faq-item summary::after {
    top: 21px;
  }

  .faq-item p,
  .faq-answer {
    padding-right: 0;
  }

  .faq-answer {
    padding-left: 0;
  }

  .help-entry {
    padding: 20px;
  }

  .error-main {
    padding: 48px 0 64px;
  }

  .error-inner {
    padding: 0 16px;
  }

  .error-actions {
    flex-direction: column;
    gap: 10px;
  }

  .page-header {
    padding: 14px 0 16px;
    margin-bottom: 28px;
  }

  .breadcrumb {
    padding-top: 16px;
    font-size: 12.5px;
  }

  .page-hero {
    padding: 20px 0 18px;
    margin-bottom: 28px;
  }

  .page-intro {
    margin-bottom: 28px;
  }

  .section-title,
  .stage-section h2,
  .convention-section h2,
  .pitfall-section h2,
  .cap-matrix h2,
  .deliver-forms h2,
  .scope-compare h2,
  .cap-next h2,
  .faq-group h2 {
    font-size: 17px;
  }

  .principle-standard {
    padding-left: 0;
  }

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