/* =========================================================
   村小碗 · 彭州市乡镇惠民餐饮 + 乡村助餐民生服务项目
   面向主管部门的立项申报展示站
   ========================================================= */

:root {
  --paper: #f5f0e6;
  --paper-2: #fbf7ef;
  --paper-3: #ece3d4;
  --ink: #202a24;
  --ink-2: #4e5a51;
  --ink-3: #7d877f;
  --green: #2f4a3a;
  --green-deep: #1f3529;
  --green-soft: #dfe7de;
  --red: #a33b2b;
  --red-deep: #7f2b1f;
  --gold: #b98b4a;
  --line: rgba(32, 42, 36, 0.14);
  --line-strong: rgba(32, 42, 36, 0.26);
  --shadow: 0 30px 70px -46px rgba(31, 53, 41, 0.55);
  --serif: "Songti SC", "STSong", "Noto Serif SC", "Source Han Serif SC", "SimSun", serif;
  --sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --container: 1180px;
  --header-h: 76px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 24px);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.8;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body.nav-open {
  overflow: hidden;
}

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

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

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
}

h1,
h2,
h3,
h4,
p,
ul,
ol,
figure,
blockquote,
table {
  margin: 0;
}

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

table {
  border-collapse: collapse;
}

::selection {
  background: var(--red);
  color: #fff;
}

:focus-visible {
  outline: 2px solid var(--red);
  outline-offset: 4px;
}

.container {
  width: min(100% - 48px, var(--container));
  margin-inline: auto;
}

/* ---------- 顶部信息条 ---------- */

.topbar {
  background: var(--green-deep);
  color: rgba(245, 240, 230, 0.72);
  font-size: 11.5px;
  letter-spacing: 0.08em;
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 38px;
}

.topbar-right {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.status-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--gold);
}

/* ---------- 主导航 ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(245, 240, 230, 0.96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: box-shadow 0.4s var(--ease);
}

.site-header.is-scrolled {
  box-shadow: 0 16px 40px -34px rgba(31, 53, 41, 0.7);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 26px;
  min-height: var(--header-h);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.brand-seal {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  background: var(--red);
  color: #fbf3e6;
  font-family: var(--serif);
  font-size: 24px;
  line-height: 1;
  letter-spacing: 0;
  box-shadow: inset 0 0 0 2px rgba(251, 243, 230, 0.22);
  border-radius: 2px;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand-text strong {
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: 0.14em;
}

.brand-text em {
  margin-top: 4px;
  font-style: normal;
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--ink-3);
}

.nav {
  display: flex;
  align-items: center;
  gap: clamp(16px, 2.2vw, 30px);
}

.nav > a:not(.btn) {
  position: relative;
  padding-block: 8px;
  font-size: 14px;
  letter-spacing: 0.06em;
  color: var(--ink-2);
  transition: color 0.25s var(--ease);
}

.nav > a:not(.btn)::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: var(--red);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease);
}

.nav > a:not(.btn):hover,
.nav > a:not(.btn).active {
  color: var(--ink);
}

.nav > a:not(.btn):hover::after,
.nav > a:not(.btn).active::after {
  transform: scaleX(1);
}

.nav-cta {
  margin-left: 4px;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  background: transparent;
  padding: 0;
  place-items: center;
}

.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
  display: block;
  width: 18px;
  height: 1.5px;
  background: var(--ink);
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
}

.nav-toggle span {
  position: relative;
}

.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  position: absolute;
  left: 0;
}

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

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

.nav-toggle[aria-expanded="true"] span {
  background: transparent;
}

.nav-toggle[aria-expanded="true"] span::before {
  transform: translateY(6px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span::after {
  transform: translateY(-6px) rotate(-45deg);
}

/* ---------- 通用排版 ---------- */

.section {
  position: relative;
  padding-block: clamp(64px, 8vw, 108px);
}

.section--tight {
  padding-block: clamp(48px, 5.5vw, 72px);
}

.section--paper {
  background: var(--paper-2);
}

.section--sand {
  background: var(--paper-3);
}

.section--green {
  background: var(--green-deep);
  color: var(--paper);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  color: var(--red);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.24em;
}

.eyebrow::before {
  content: "";
  width: 8px;
  height: 8px;
  background: var(--red);
}

.section--green .eyebrow {
  color: var(--gold);
}

.section--green .eyebrow::before {
  background: var(--gold);
}

.display {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(30px, 3.9vw, 46px);
  line-height: 1.3;
  letter-spacing: 0.02em;
}

.display em {
  font-style: normal;
  color: var(--red);
}

.section--green .display em {
  color: var(--gold);
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 40px;
  margin-bottom: clamp(32px, 4vw, 52px);
}

.section-head__text {
  max-width: 720px;
}

.section-head .lead {
  margin-top: 16px;
}

.lead {
  color: var(--ink-2);
  font-size: clamp(14.5px, 1.3vw, 16.5px);
  line-height: 1.95;
}

.section--green .lead {
  color: rgba(245, 240, 230, 0.7);
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding-bottom: 4px;
  border-bottom: 1px solid rgba(163, 59, 43, 0.35);
  color: var(--red);
  font-size: 13.5px;
  font-weight: 500;
  letter-spacing: 0.05em;
  transition: gap 0.3s var(--ease), border-color 0.3s var(--ease);
}

.link-arrow:hover {
  gap: 14px;
  border-color: var(--red);
}

.section--green .link-arrow {
  border-color: rgba(185, 139, 74, 0.5);
  color: var(--gold);
}

/* ---------- 按钮 ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 0 26px;
  border: 1px solid transparent;
  border-radius: 2px;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.06em;
  transition: background 0.3s var(--ease), color 0.3s var(--ease),
    border-color 0.3s var(--ease), transform 0.3s var(--ease);
  white-space: nowrap;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn svg {
  width: 15px;
  height: 15px;
  transition: transform 0.3s var(--ease);
}

.btn:hover svg {
  transform: translateX(4px);
}

.btn--primary {
  background: var(--red);
  color: #fbf3e6;
}

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

.btn--green {
  background: var(--green);
  color: var(--paper);
}

.btn--green:hover {
  background: var(--green-deep);
}

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

.btn--outline:hover {
  border-color: var(--green);
  color: var(--green);
}

.btn--ghost {
  border-color: rgba(245, 240, 230, 0.35);
  color: var(--paper);
}

.btn--ghost:hover {
  background: rgba(245, 240, 230, 0.08);
  border-color: rgba(245, 240, 230, 0.6);
}

.btn--sm {
  min-height: 40px;
  padding: 0 18px;
  font-size: 13px;
}

/* ---------- 首页 Hero ---------- */

.hero {
  position: relative;
  padding: clamp(42px, 6vw, 78px) 0 clamp(34px, 4vw, 52px);
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(circle at 88% 8%, rgba(185, 139, 74, 0.14), transparent 32%),
    radial-gradient(circle at 4% 90%, rgba(47, 74, 58, 0.09), transparent 30%);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
  align-items: center;
  gap: clamp(34px, 5.5vw, 76px);
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 26px;
  padding: 7px 14px;
  border-left: 2px solid var(--red);
  background: rgba(163, 59, 43, 0.07);
  color: var(--red);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.14em;
}

.hero h1 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(40px, 5.4vw, 68px);
  line-height: 1.24;
  letter-spacing: 0.02em;
  text-wrap: balance;
}

.hero h1 em {
  font-style: normal;
  color: var(--red);
  position: relative;
  white-space: nowrap;
}

.hero-lead {
  max-width: 560px;
  margin-top: 24px;
  color: var(--ink-2);
  font-size: clamp(15px, 1.45vw, 17px);
  line-height: 1.95;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.hero-meta {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 38px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.hero-meta span {
  display: block;
  font-size: 10.5px;
  letter-spacing: 0.14em;
  color: var(--ink-3);
}

.hero-meta strong {
  display: block;
  margin-top: 4px;
  font-family: var(--serif);
  font-size: 14.5px;
  font-weight: 600;
  line-height: 1.6;
}

.hero-figure {
  position: relative;
}

.hero-figure::before {
  content: "";
  position: absolute;
  inset: 16px -16px -16px 16px;
  border: 1px solid rgba(163, 59, 43, 0.28);
  z-index: -1;
}

.hero-figure img {
  width: 100%;
  aspect-ratio: 5 / 6;
  object-fit: cover;
  background: var(--paper-3);
}

.hero-figure figcaption {
  position: absolute;
  inset: auto 0 0;
  padding: 46px 24px 20px;
  background: linear-gradient(180deg, transparent, rgba(31, 53, 41, 0.92));
  color: rgba(245, 240, 230, 0.82);
  font-size: 12px;
  letter-spacing: 0.04em;
}

.hero-badge {
  position: absolute;
  top: 22px;
  right: -14px;
  padding: 14px 18px;
  background: var(--red);
  color: #fbf3e6;
  font-family: var(--serif);
  font-size: 20px;
  line-height: 1.35;
  letter-spacing: 0.08em;
  text-align: center;
  box-shadow: 0 20px 40px -24px rgba(127, 43, 31, 0.8);
}

.hero-badge small {
  display: block;
  margin-top: 2px;
  font-family: var(--sans);
  font-size: 9.5px;
  letter-spacing: 0.16em;
  opacity: 0.78;
}

/* ---------- 项目概况条 ---------- */

.summary {
  border-block: 1px solid var(--line);
  background: var(--paper-2);
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.summary-item {
  padding: 24px 22px;
  border-right: 1px solid var(--line);
}

.summary-item:last-child {
  border-right: 0;
}

.summary-item span {
  display: block;
  font-size: 10.5px;
  letter-spacing: 0.16em;
  color: var(--ink-3);
}

.summary-item strong {
  display: block;
  margin-top: 6px;
  font-family: var(--serif);
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.7;
}

/* ---------- 背景 / 问题卡 ---------- */

.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.problem-card {
  position: relative;
  padding: clamp(28px, 3.2vw, 40px);
  background: var(--paper);
}

.problem-num {
  font-family: var(--serif);
  font-size: 13px;
  letter-spacing: 0.2em;
  color: var(--gold);
}

.problem-card h3 {
  margin-top: 22px;
  font-family: var(--serif);
  font-size: 21px;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.problem-card p {
  margin-top: 10px;
  color: var(--ink-2);
  font-size: 14px;
  line-height: 1.9;
}

.problem-icon {
  position: absolute;
  top: clamp(28px, 3.2vw, 40px);
  right: clamp(28px, 3.2vw, 40px);
  width: 30px;
  height: 30px;
  color: var(--red);
  opacity: 0.75;
}

.callout {
  margin-top: clamp(28px, 3.4vw, 40px);
  padding: 22px 26px;
  border-left: 3px solid var(--red);
  background: rgba(163, 59, 43, 0.06);
  color: var(--ink-2);
  font-size: 14px;
  line-height: 1.9;
}

.callout strong {
  color: var(--ink);
  font-weight: 600;
}

.callout--green {
  border-left-color: var(--green);
  background: rgba(47, 74, 58, 0.07);
}

/* ---------- 双轮模式 ---------- */

.model-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: stretch;
  gap: clamp(16px, 2.4vw, 28px);
  margin-top: clamp(34px, 4vw, 48px);
}

.model-card {
  padding: clamp(26px, 3vw, 38px);
  border: 1px solid rgba(245, 240, 230, 0.2);
  background: rgba(245, 240, 230, 0.035);
}

.model-card--accent {
  border-color: rgba(185, 139, 74, 0.5);
  background: rgba(185, 139, 74, 0.07);
}

.model-card__label {
  color: var(--gold);
  font-size: 10.5px;
  letter-spacing: 0.2em;
}

.model-card h3 {
  margin-top: 12px;
  font-family: var(--serif);
  font-size: 25px;
  font-weight: 600;
  letter-spacing: 0.05em;
}

.model-card > p {
  margin-top: 10px;
  color: rgba(245, 240, 230, 0.66);
  font-size: 13.5px;
  line-height: 1.9;
}

.model-list {
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid rgba(245, 240, 230, 0.16);
}

.model-list li {
  position: relative;
  padding-left: 18px;
  color: rgba(245, 240, 230, 0.78);
  font-size: 13.5px;
  line-height: 1.85;
}

.model-list li + li {
  margin-top: 8px;
}

.model-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 5px;
  height: 5px;
  background: var(--gold);
}

.model-core {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  min-width: 108px;
}

.model-core__circle {
  display: grid;
  place-items: center;
  width: 104px;
  height: 104px;
  border: 1px solid rgba(185, 139, 74, 0.7);
  border-radius: 50%;
  color: var(--gold);
  font-family: var(--serif);
  font-size: 17px;
  line-height: 1.45;
  letter-spacing: 0.08em;
  text-align: center;
}

.model-core span {
  color: rgba(245, 240, 230, 0.46);
  font-size: 10px;
  letter-spacing: 0.18em;
}

.network {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(18px, 2.4vw, 30px);
  margin-top: clamp(40px, 4.8vw, 58px);
  padding-top: clamp(30px, 3.6vw, 44px);
  border-top: 1px solid rgba(245, 240, 230, 0.18);
}

.network-step {
  position: relative;
  padding-left: 20px;
  border-left: 1px solid rgba(185, 139, 74, 0.4);
}

.network-step__num {
  font-family: var(--serif);
  font-size: 30px;
  line-height: 1;
  color: var(--gold);
}

.network-step h4 {
  margin-top: 14px;
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 0.05em;
}

.network-step p {
  margin-top: 8px;
  color: rgba(245, 240, 230, 0.64);
  font-size: 13px;
  line-height: 1.85;
}

/* ---------- 表格 ---------- */

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  background: var(--paper-2);
}

.data-table {
  width: 100%;
  min-width: 760px;
}

.data-table th {
  padding: 14px 18px;
  background: var(--green);
  color: var(--paper);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-align: left;
  white-space: nowrap;
}

.data-table td {
  padding: 15px 18px;
  border-top: 1px solid var(--line);
  color: var(--ink-2);
  font-size: 13.5px;
  line-height: 1.85;
  vertical-align: top;
}

.data-table tbody tr:nth-child(even) td {
  background: rgba(236, 227, 212, 0.32);
}

.data-table td strong {
  color: var(--ink);
  font-weight: 600;
}

.data-table--kv {
  min-width: 0;
}

.data-table--kv th {
  width: 170px;
  background: var(--paper-3);
  color: var(--ink-3);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.12em;
}

.data-table--kv td {
  color: var(--ink);
  background: var(--paper-2);
}

.data-table--kv tbody tr:nth-child(even) td {
  background: var(--paper-2);
}

.table-note {
  margin-top: 14px;
  color: var(--ink-3);
  font-size: 12px;
  line-height: 1.8;
}

/* ---------- 政策卡 ---------- */

.policy-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(18px, 2.4vw, 28px);
}

.policy-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: clamp(26px, 3vw, 34px);
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-top: 3px solid var(--green);
}

.policy-card__level {
  color: var(--red);
  font-size: 10.5px;
  letter-spacing: 0.2em;
}

.policy-card h3 {
  margin-top: 14px;
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 600;
  line-height: 1.5;
  letter-spacing: 0.03em;
}

.policy-card__doc {
  margin-top: 8px;
  color: var(--ink-3);
  font-size: 11.5px;
  letter-spacing: 0.04em;
}

.policy-card ul {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px dashed var(--line);
}

.policy-card li {
  position: relative;
  padding-left: 14px;
  color: var(--ink-2);
  font-size: 13px;
  line-height: 1.85;
}

.policy-card li + li {
  margin-top: 7px;
}

.policy-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 4px;
  height: 4px;
  background: var(--gold);
}

/* ---------- 社会效益 ---------- */

.benefit-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

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

.benefit-card {
  padding: clamp(26px, 3vw, 36px);
  background: var(--paper);
}

.benefit-icon {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--green-soft);
  color: var(--green);
}

.benefit-icon svg {
  width: 20px;
  height: 20px;
}

.benefit-card h3 {
  margin-top: 20px;
  font-family: var(--serif);
  font-size: 19px;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.benefit-card p {
  margin-top: 8px;
  color: var(--ink-2);
  font-size: 13.5px;
  line-height: 1.9;
}

/* ---------- 横向阶段 ---------- */

.stage-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(20px, 3vw, 36px);
  margin-top: clamp(30px, 4vw, 44px);
}

.stage {
  position: relative;
  padding-top: 34px;
  border-top: 1px solid var(--line-strong);
}

.stage::before {
  content: "";
  position: absolute;
  top: -5px;
  left: 0;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--red);
}

.stage__tag {
  font-size: 10.5px;
  letter-spacing: 0.18em;
  color: var(--red);
}

.stage h3 {
  margin-top: 10px;
  font-family: var(--serif);
  font-size: 21px;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.stage p {
  margin-top: 8px;
  color: var(--ink-2);
  font-size: 13.5px;
  line-height: 1.9;
}

.stage ul {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
}

.stage li {
  position: relative;
  padding-left: 14px;
  color: var(--ink-2);
  font-size: 12.5px;
  line-height: 1.8;
}

.stage li + li {
  margin-top: 5px;
}

.stage li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 4px;
  height: 4px;
  background: var(--gold);
}

/* ---------- 指标 ---------- */

.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: clamp(28px, 3.5vw, 40px);
  border: 1px solid var(--line);
  background: var(--paper-2);
}

.metric {
  padding: 28px 22px;
  border-right: 1px solid var(--line);
}

.metric:last-child {
  border-right: 0;
}

.metric strong {
  display: block;
  font-family: var(--serif);
  font-size: clamp(30px, 3.2vw, 40px);
  font-weight: 500;
  line-height: 1;
  color: var(--red);
  letter-spacing: 0.02em;
}

.metric strong small {
  font-family: var(--sans);
  font-size: 13px;
  margin-left: 2px;
}

.metric span {
  display: block;
  margin-top: 10px;
  color: var(--ink-2);
  font-size: 12.5px;
  line-height: 1.7;
}

/* ---------- 页面 Hero ---------- */

.page-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(52px, 6.5vw, 88px) 0;
  background: var(--green-deep);
  color: var(--paper);
}

.page-hero__media {
  position: absolute;
  inset: 0 0 0 auto;
  width: 46%;
  z-index: -2;
}

.page-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(90deg, var(--green-deep) 0%, var(--green-deep) 42%, rgba(31, 53, 41, 0.82) 62%, rgba(31, 53, 41, 0.4) 100%);
}

.page-hero__inner {
  max-width: 690px;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
  color: rgba(245, 240, 230, 0.5);
  font-size: 11.5px;
  letter-spacing: 0.1em;
}

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

.breadcrumb span {
  opacity: 0.45;
}

.page-hero h1 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(34px, 4.6vw, 56px);
  line-height: 1.25;
  letter-spacing: 0.03em;
}

.page-hero .lead {
  max-width: 590px;
  margin-top: 18px;
  color: rgba(245, 240, 230, 0.72);
}

.page-hero .eyebrow {
  color: var(--gold);
}

.page-hero .eyebrow::before {
  background: var(--gold);
}

/* ---------- 分栏 ---------- */

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(32px, 5.5vw, 76px);
  align-items: center;
}

.split--reverse .split-media {
  order: 2;
}

.split-media {
  position: relative;
}

.split-media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  background: var(--paper-3);
}

.split-media--tall img {
  aspect-ratio: 4 / 5;
}

.split-media__caption {
  margin-top: 12px;
  color: var(--ink-3);
  font-size: 11.5px;
  line-height: 1.7;
}

.split-body .display {
  margin-bottom: 20px;
}

.split-body p + p {
  margin-top: 14px;
}

/* ---------- 编号清单 ---------- */

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

.numbered-list li {
  display: grid;
  grid-template-columns: 58px 1fr;
  gap: 18px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.numbered-list__num {
  font-family: var(--serif);
  font-size: 15px;
  color: var(--gold);
  letter-spacing: 0.08em;
  line-height: 1.9;
}

.numbered-list h3 {
  font-family: var(--serif);
  font-size: 17.5px;
  font-weight: 600;
  letter-spacing: 0.03em;
}

.numbered-list p {
  margin-top: 5px;
  color: var(--ink-2);
  font-size: 13.5px;
  line-height: 1.9;
}

/* ---------- 保障 / 权责卡 ---------- */

.duty-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.duty-card {
  padding: clamp(24px, 3vw, 34px);
  background: var(--paper-2);
}

.duty-card__tag {
  font-size: 10.5px;
  letter-spacing: 0.18em;
  color: var(--red);
}

.duty-card h3 {
  margin-top: 12px;
  font-family: var(--serif);
  font-size: 19px;
  font-weight: 600;
}

.duty-card p {
  margin-top: 8px;
  color: var(--ink-2);
  font-size: 13.5px;
  line-height: 1.9;
}

/* ---------- 折叠 ---------- */

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

.accordion details {
  border-bottom: 1px solid var(--line);
}

.accordion summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 20px 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--serif);
  font-size: 17px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

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

.accordion summary::after {
  content: "+";
  flex-shrink: 0;
  font-family: var(--sans);
  font-size: 20px;
  font-weight: 300;
  color: var(--red);
  transition: transform 0.3s var(--ease);
}

.accordion details[open] summary::after {
  transform: rotate(45deg);
}

.accordion__body {
  padding-bottom: 22px;
  color: var(--ink-2);
  font-size: 13.5px;
  line-height: 1.95;
}

.accordion__body p + p {
  margin-top: 8px;
}

.accordion__body .meta {
  display: block;
  margin-bottom: 8px;
  color: var(--ink-3);
  font-size: 11.5px;
  letter-spacing: 0.06em;
}

/* ---------- 材料清单 ---------- */

.material-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.material-item {
  display: flex;
  gap: 14px;
  padding: 16px 20px;
  background: var(--paper-2);
}

.material-index {
  flex-shrink: 0;
  font-family: var(--serif);
  font-size: 13px;
  color: var(--red);
  letter-spacing: 0.06em;
  line-height: 1.8;
}

.material-item p {
  color: var(--ink-2);
  font-size: 13px;
  line-height: 1.8;
}

/* ---------- 联系 ---------- */

.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(30px, 5vw, 64px);
  align-items: start;
}

.info-list {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.info-item {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 16px;
  padding: 20px 22px;
  background: var(--paper-2);
}

.info-icon {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  background: var(--green-soft);
  color: var(--green);
  border-radius: 50%;
}

.info-icon svg {
  width: 18px;
  height: 18px;
}

.info-item h3 {
  color: var(--ink-3);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.16em;
}

.info-item p {
  margin-top: 4px;
  font-family: var(--serif);
  font-size: 17px;
  line-height: 1.6;
  letter-spacing: 0.02em;
}

.info-item small {
  display: block;
  margin-top: 4px;
  color: var(--ink-3);
  font-family: var(--sans);
  font-size: 11.5px;
}

.form-wrap {
  padding: clamp(26px, 3.6vw, 40px);
  background: var(--paper-2);
  border: 1px solid var(--line);
}

.form-wrap h2 {
  font-family: var(--serif);
  font-size: clamp(23px, 2.6vw, 28px);
  font-weight: 600;
  letter-spacing: 0.04em;
}

.form-wrap > p {
  margin-top: 8px;
  color: var(--ink-3);
  font-size: 13px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.field {
  margin-top: 18px;
}

.field label {
  display: block;
  margin-bottom: 7px;
  color: var(--ink-2);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.field label span {
  color: var(--red);
}

.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: var(--paper);
  font-size: 13.5px;
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease);
}

.field textarea {
  min-height: 124px;
  resize: vertical;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--red);
  background: #fffdf8;
}

.field input::placeholder,
.field textarea::placeholder {
  color: var(--ink-3);
  opacity: 0.75;
}

.form-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  margin-top: 24px;
}

.form-tip {
  color: var(--ink-3);
  font-size: 11px;
  line-height: 1.7;
}

.form-success {
  margin-top: 20px;
  padding: 15px 18px;
  border-left: 3px solid var(--green);
  background: rgba(47, 74, 58, 0.08);
  color: var(--green);
  font-size: 13px;
}

/* ---------- 结尾 CTA ---------- */

.cta {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding-block: clamp(68px, 8vw, 104px);
  color: var(--paper);
  text-align: center;
}

.cta__media {
  position: absolute;
  inset: 0;
  z-index: -2;
}

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

.cta::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(180deg, rgba(31, 53, 41, 0.88), rgba(31, 53, 41, 0.92));
}

.cta .display {
  max-width: 780px;
  margin-inline: auto;
}

.cta .lead {
  max-width: 600px;
  margin: 16px auto 0;
  color: rgba(245, 240, 230, 0.72);
}

.cta .hero-actions {
  justify-content: center;
  margin-top: 30px;
}

.cta .eyebrow {
  color: var(--gold);
}

.cta .eyebrow::before {
  background: var(--gold);
}

/* ---------- 页脚 ---------- */

.site-footer {
  background: #1a2b21;
  color: rgba(245, 240, 230, 0.62);
  padding-top: clamp(48px, 6vw, 72px);
}

.footer-main {
  display: grid;
  grid-template-columns: 1.5fr 0.8fr 0.8fr 1fr;
  gap: clamp(28px, 4.5vw, 60px);
  padding-bottom: clamp(38px, 4.5vw, 56px);
}

.footer-brand .brand {
  color: var(--paper);
}

.footer-brand .brand-seal {
  background: var(--red);
}

.footer-brand p {
  max-width: 340px;
  margin-top: 20px;
  color: rgba(245, 240, 230, 0.48);
  font-size: 13px;
  line-height: 1.95;
}

.footer-note {
  display: inline-block;
  margin-top: 20px;
  padding: 8px 12px;
  border: 1px solid rgba(245, 240, 230, 0.16);
  color: rgba(245, 240, 230, 0.5);
  font-size: 10.5px;
  letter-spacing: 0.06em;
}

.footer-col h4 {
  margin-bottom: 18px;
  color: var(--paper);
  font-family: var(--serif);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.1em;
}

.footer-col li + li {
  margin-top: 10px;
}

.footer-col a,
.footer-col li {
  color: rgba(245, 240, 230, 0.52);
  font-size: 13px;
  line-height: 1.8;
}

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

.footer-contact li {
  display: flex;
  gap: 9px;
}

.footer-contact svg {
  flex-shrink: 0;
  width: 14px;
  height: 14px;
  margin-top: 5px;
  color: var(--gold);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-block: 20px;
  border-top: 1px solid rgba(245, 240, 230, 0.1);
  color: rgba(245, 240, 230, 0.36);
  font-size: 11.5px;
}

.footer-bottom a:hover {
  color: var(--paper);
}

/* ---------- 动效 ---------- */

.js .reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.85s var(--ease), transform 0.85s var(--ease);
}

.js .reveal.is-visible {
  opacity: 1;
  transform: none;
}

.js .reveal[data-delay="1"] {
  transition-delay: 0.08s;
}

.js .reveal[data-delay="2"] {
  transition-delay: 0.16s;
}

.js .reveal[data-delay="3"] {
  transition-delay: 0.24s;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ---------- 响应式 ---------- */

@media (max-width: 1080px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .hero-figure {
    max-width: 620px;
  }

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

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

  .summary-item:nth-child(2) {
    border-right: 0;
  }

  .summary-item:nth-child(-n + 2) {
    border-bottom: 1px solid var(--line);
  }

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

  .model-core {
    flex-direction: row;
    padding-block: 4px;
  }

  .model-core__circle {
    width: 88px;
    height: 88px;
    font-size: 15px;
  }

  .footer-main {
    grid-template-columns: 1.4fr 1fr 1fr;
  }

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

  .footer-brand p {
    max-width: 540px;
  }
}

@media (max-width: 900px) {
  .nav-toggle {
    display: grid;
  }

  .nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 14px 24px 26px;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 30px 40px -30px rgba(31, 53, 41, 0.45);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: opacity 0.3s var(--ease), transform 0.3s var(--ease),
      visibility 0.3s;
  }

  .nav.is-open {
    opacity: 1;
    visibility: visible;
    transform: none;
  }

  .nav > a:not(.btn) {
    padding: 14px 0;
    border-bottom: 1px solid var(--line);
    font-family: var(--serif);
    font-size: 17px;
  }

  .nav > a:not(.btn)::after {
    display: none;
  }

  .nav-cta {
    width: 100%;
    margin: 18px 0 0;
  }

  .topbar-right {
    display: none;
  }

  .hero-meta {
    grid-template-columns: 1fr 1fr;
  }

  .problem-grid,
  .policy-grid,
  .benefit-grid,
  .benefit-grid--2,
  .stage-grid,
  .duty-grid {
    grid-template-columns: 1fr;
  }

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

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

  .metric:nth-child(2) {
    border-right: 0;
  }

  .metric:nth-child(-n + 2) {
    border-bottom: 1px solid var(--line);
  }

  .split,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .split--reverse .split-media {
    order: 0;
  }

  .page-hero__media {
    width: 100%;
  }

  .page-hero::after {
    background: linear-gradient(90deg, rgba(31, 53, 41, 0.94), rgba(31, 53, 41, 0.78));
  }

  .section-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 18px;
  }

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

@media (max-width: 620px) {
  .container {
    width: calc(100% - 36px);
  }

  .topbar-left {
    font-size: 10.5px;
    letter-spacing: 0.04em;
  }

  .brand-text em {
    display: none;
  }

  .hero {
    padding-top: 30px;
  }

  .hero h1 {
    font-size: clamp(34px, 10vw, 46px);
  }

  .hero h1 em {
    white-space: normal;
  }

  .hero-badge {
    right: 10px;
    top: 14px;
    padding: 10px 14px;
    font-size: 16px;
  }

  .hero-meta {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .hero-actions .btn {
    flex: 1 1 auto;
  }

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

  .summary-item {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

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

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

  .metric {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .metric:last-child {
    border-bottom: 0;
  }

  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .model-core {
    flex-direction: column;
  }

  .numbered-list li {
    grid-template-columns: 40px 1fr;
    gap: 12px;
  }

  .footer-main {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .footer-bottom {
    justify-content: flex-start;
  }

  .info-item {
    grid-template-columns: 38px 1fr;
    padding: 18px;
  }

  .info-icon {
    width: 38px;
    height: 38px;
  }
}