/* ==========================================================================
   海大门 HAIDAMEN · AI 跨境 OPC 众创空间
   官网样式表 — 全浅色版
   ========================================================================== */

:root {
  --navy: #14203c;
  --navy-deep: #0e1830;
  --red: #c1272d;
  --red-dark: #a51f25;
  --ink: #4a566f;
  --muted: #6e7a93;
  --muted-2: #8f9bb0;
  --gold: #b08a46;
  --gold-deep: #8a6a34;
  --white: #ffffff;
  --cream: #f7f5f0;
  --sand: #f5f1e6;
  --line: #eae5d9;
  --line-2: #e3ded1;
  --radius-s: 12px;
  --radius-m: 16px;
  --radius-l: 20px;
  --radius-xl: 28px;
  --shadow-card: 0 10px 30px rgba(13, 24, 46, 0.16);
  --shadow-soft: 0 6px 24px rgba(13, 24, 46, 0.06);
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

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

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

/* 锚点跳转时避开吸顶导航 */
section[id] {
  scroll-margin-top: 88px;
}

body {
  margin: 0;
  background: var(--white);
  color: var(--navy);
  font-family: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
    system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

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

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

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

/* ---------- 布局基元 ---------- */

.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
}

.section {
  padding: 96px 100px;
}

.section--white {
  background: var(--white);
}

.section--cream {
  background: var(--cream);
}

.hairline {
  height: 1px;
  background: var(--line);
  border: 0;
  margin: 0;
}

/* ---------- 文字 ---------- */

.eyebrow {
  display: block;
  font-family: "Inter", "Helvetica Neue", Arial, sans-serif;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.26em;
  color: var(--gold);
  text-transform: uppercase;
}

.h1,
.h2,
.h3 {
  margin: 0;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--navy);
  text-wrap: balance;
}

.h1 {
  font-size: clamp(32px, 4vw, 56px);
  line-height: 1.34;
}

.h2 {
  font-size: clamp(25px, 2.9vw, 42px);
  line-height: 1.36;
}

.h3 {
  font-size: clamp(23px, 2.6vw, 38px);
  line-height: 1.38;
}

.lead {
  margin: 0;
  font-size: 18px;
  line-height: 1.78;
  color: var(--ink);
}

.body-sm {
  margin: 0;
  font-size: 15px;
  line-height: 1.9;
  color: var(--ink);
}

.mono-num {
  font-family: "Inter", "Helvetica Neue", Arial, sans-serif;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--gold);
}

.section-head {
  max-width: 780px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.section-head .h2,
.section-head .h3 {
  margin: 0;
}

/* ---------- 按钮 ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  height: 54px;
  padding: 0 30px;
  border-radius: 999px;
  border: 1px solid transparent;
  background: var(--red);
  color: #fff;
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.25s var(--ease), transform 0.25s var(--ease),
    box-shadow 0.25s var(--ease);
  white-space: nowrap;
}

.btn:hover {
  background: var(--red-dark);
  transform: translateY(-1px);
  box-shadow: 0 10px 24px rgba(193, 39, 45, 0.24);
}

.btn--ghost {
  background: transparent;
  border-color: #c3c8d3;
  color: var(--navy);
}

.btn--ghost:hover {
  background: #fff;
  border-color: var(--navy);
  box-shadow: var(--shadow-soft);
}

.btn--sm {
  height: 42px;
  padding: 0 22px;
  font-size: 14px;
}

.btn--block {
  width: 100%;
}

.btn-row {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

/* ---------- 导航 ---------- */

.nav {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(251, 250, 247, 0.92);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
}

.nav-inner {
  max-width: 1240px;
  margin: 0 auto;
  height: 76px;
  display: flex;
  align-items: center;
  gap: 40px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-mark {
  width: 30px;
  height: 30px;
  flex: none;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1;
}

.brand-cn {
  font-size: 19px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--navy);
}

.brand-en {
  margin-top: 5px;
  font-family: "Inter", Arial, sans-serif;
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.24em;
  color: var(--muted-2);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 34px;
  margin-left: auto;
}

.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--ink);
  transition: color 0.2s var(--ease);
  white-space: nowrap;
}

.nav-links a:hover {
  color: var(--navy);
}

.nav-links a.is-active {
  color: var(--red);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 20px;
  padding-left: 24px;
}

.nav-tel {
  font-family: "Inter", Arial, sans-serif;
  font-size: 14px;
  font-weight: 600;
  color: var(--navy);
  letter-spacing: 0.01em;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line-2);
  border-radius: 12px;
  background: #fff;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  margin-left: auto;
}

.nav-toggle span {
  display: block;
  width: 16px;
  height: 1.5px;
  background: var(--navy);
  position: relative;
}

.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  position: absolute;
  left: 0;
  width: 16px;
  height: 1.5px;
  background: var(--navy);
}

.nav-toggle span::before {
  top: -5px;
}

.nav-toggle span::after {
  top: 5px;
}

/* ---------- 首屏 ---------- */

.hero {
  display: grid;
  grid-template-columns: minmax(0, 640px) minmax(0, 540px);
  justify-content: space-between;
  gap: 60px;
  align-items: start;
  padding-top: 76px;
  padding-bottom: 64px;
}

.hero-copy {
  display: flex;
  flex-direction: column;
  gap: 26px;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  align-self: flex-start;
  padding: 7px 14px;
  border-radius: 999px;
  background: var(--sand);
  font-size: 13px;
  font-weight: 500;
  color: var(--gold-deep);
}

.chip i {
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: var(--red);
  flex: none;
}

.hero-meta {
  display: flex;
  align-items: center;
  gap: 26px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--muted);
}

.hero-meta span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.hero-meta i {
  width: 4px;
  height: 4px;
  border-radius: 999px;
  background: #b8b0a0;
  display: inline-block;
}

/* 首屏实景卡 */
.visual-block {
  position: relative;
  width: 100%;
}

.visual-card {
  position: relative;
  width: 100%;
  aspect-ratio: 540 / 512;
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--navy);
  isolation: isolate;
}

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

.visual-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(13, 24, 46, 0) 0%,
    rgba(13, 24, 46, 0) 44%,
    rgba(13, 24, 46, 0.52) 100%
  );
  pointer-events: none;
}

.visual-tag {
  position: absolute;
  top: 32px;
  left: 32px;
  z-index: 2;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(20, 32, 60, 0.62);
  color: #fff;
  font-size: 13px;
  font-weight: 500;
  backdrop-filter: blur(6px);
}

.visual-note {
  position: absolute;
  left: 32px;
  right: 32px;
  bottom: 32px;
  z-index: 2;
  background: #fff;
  border-radius: 14px;
  padding: 18px 22px;
  box-shadow: var(--shadow-card);
}

.visual-note strong {
  display: block;
  font-size: 15px;
  font-weight: 500;
  color: var(--navy);
}

.visual-note span {
  display: block;
  margin-top: 4px;
  font-size: 13px;
  color: var(--muted);
}

/* 首屏数据卡（三格） */
.stat-card {
  position: absolute;
  left: 32px;
  right: 32px;
  bottom: 32px;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  background: #fff;
  border-radius: 22px;
  padding: 24px 26px;
  box-shadow: var(--shadow-card);
}

.stat {
  padding: 0 18px;
  border-left: 1px solid var(--line);
}

.stat:first-child {
  padding-left: 0;
  border-left: 0;
}

.stat b {
  display: block;
  font-family: "Inter", "Noto Sans SC", sans-serif;
  font-size: 26px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--navy);
  letter-spacing: -0.02em;
}

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

.stat span {
  display: block;
  margin-top: 6px;
  font-size: 12.5px;
  color: var(--muted);
  line-height: 1.5;
}

/* ---------- 四大支柱 ---------- */

.pillars {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  padding: 32px 100px;
  background: var(--white);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.pillar {
  padding: 0 32px;
  border-left: 1px solid var(--line);
}

.pillar:first-child {
  padding-left: 0;
  border-left: 0;
}

.pillar b {
  display: block;
  font-size: 17px;
  font-weight: 700;
  color: var(--navy);
}

.pillar span {
  display: block;
  margin-top: 8px;
  font-size: 13.5px;
  color: var(--muted);
  line-height: 1.6;
}

/* ---------- 优势编号列表 ---------- */

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

.row {
  display: grid;
  grid-template-columns: 56px minmax(0, 300px) minmax(0, 1fr);
  gap: 32px;
  align-items: start;
  padding: 30px 0;
  border-bottom: 1px solid var(--line);
}

.row-num {
  font-family: "Inter", Arial, sans-serif;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--gold);
  padding-top: 6px;
}

.row-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--navy);
}

.row-body {
  font-size: 15px;
  line-height: 1.9;
  color: var(--ink);
  max-width: 640px;
}

/* ---------- 卡片网格 ---------- */

.grid {
  display: grid;
  gap: 16px;
}

.grid--3 {
  grid-template-columns: repeat(3, 1fr);
}

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

.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease),
    border-color 0.3s var(--ease);
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-soft);
  border-color: var(--line-2);
}

.card h4 {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  color: var(--navy);
}

.card p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--ink);
}

.icon-box {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--sand);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 6px;
}

.icon-box svg {
  width: 22px;
  height: 22px;
  stroke: var(--red);
  fill: none;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* ---------- 双通道头图 ---------- */

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

.dual-card {
  border-radius: var(--radius-xl);
  padding: 40px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.dual-card--dark {
  background: var(--navy);
  color: #fff;
}

.dual-card--light {
  background: var(--cream);
  border: 1px solid var(--line-2);
}

.mode-tag {
  font-family: "Inter", Arial, sans-serif;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}

.dual-card--dark .mode-tag {
  color: #c7a06a;
}

.dual-card--light .mode-tag {
  color: var(--gold);
}

.dual-card h3 {
  margin: 0;
  font-size: 30px;
  font-weight: 700;
  line-height: 1.3;
}

.dual-card--dark h3 {
  color: #fff;
}

.dual-card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.9;
}

.dual-card--dark p {
  color: #a9b6ce;
}

.dual-card--light p {
  color: var(--ink);
}

.chips {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 9px;
  margin-top: 4px;
}

.chips span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border-radius: 10px;
  font-size: 13px;
}

.dual-card--dark .chips span {
  background: rgba(255, 255, 255, 0.07);
  color: #dfe5f0;
}

.dual-card--light .chips span {
  background: #fff;
  color: var(--navy);
  border: 1px solid var(--line);
}

.chips span::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 999px;
  background: var(--red);
  flex: none;
}

.dual-card .btn {
  margin-top: 10px;
  align-self: flex-start;
}

.dual-note {
  font-size: 12px;
  letter-spacing: 0.02em;
}

.dual-card--dark .dual-note {
  color: #8b99b4;
}

.dual-card--light .dual-note {
  color: var(--muted);
}

/* ---------- 收益矩阵 ---------- */

.split {
  display: grid;
  grid-template-columns: 380px minmax(0, 1fr);
  gap: 64px;
  align-items: start;
}

.split--wide {
  grid-template-columns: 460px minmax(0, 1fr);
}

.split--hero {
  grid-template-columns: 640px minmax(0, 1fr);
}

.profit-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.profit {
  padding: 24px;
  border-radius: var(--radius-m);
  background: #fff;
  border: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.profit b {
  font-size: 16px;
  font-weight: 700;
  color: var(--navy);
}

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

/* ---------- 流程 ---------- */

.steps {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0;
  border-top: 1px solid var(--line);
}

.step {
  padding: 26px 22px 0 0;
  border-right: 1px solid var(--line);
}

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

.step b {
  display: block;
  margin: 12px 0 8px;
  font-size: 16px;
  font-weight: 700;
  color: var(--navy);
}

.step p {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 空间 ---------- */

.space-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.space-tags span {
  padding: 8px 15px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid var(--line-2);
  font-size: 13px;
  color: var(--ink);
}

.space-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.space-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  padding: 22px 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.space-card b {
  font-size: 15px;
  font-weight: 700;
  color: var(--navy);
}

.space-card b em {
  font-style: normal;
  color: var(--gold);
  font-family: "Inter", Arial, sans-serif;
  font-size: 11px;
  letter-spacing: 0.2em;
  margin-right: 10px;
  vertical-align: 1px;
}

.space-card span {
  font-size: 13px;
  line-height: 1.75;
  color: var(--muted);
}

.address-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 18px 22px;
  border-radius: 14px;
  background: #fff;
  border: 1px solid var(--line);
  font-size: 14px;
  color: var(--navy);
}

.address-bar svg {
  width: 16px;
  height: 16px;
  stroke: var(--red);
  fill: none;
  stroke-width: 1.6;
  flex: none;
}

/* ---------- 人群 ---------- */

.crowd {
  font-size: clamp(19px, 2.1vw, 26px);
  font-weight: 500;
  line-height: 2;
  color: var(--navy);
  letter-spacing: 0.01em;
}

.crowd em {
  font-style: normal;
  color: var(--muted-2);
  padding: 0 14px;
}

/* ---------- FAQ ---------- */

.faq {
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  gap: 64px;
  align-items: start;
}

.faq-list {
  border-top: 1px solid var(--line-2);
}

.faq-item {
  border-bottom: 1px solid var(--line-2);
}

.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 24px 40px 24px 0;
  position: relative;
  font-size: 17px;
  font-weight: 500;
  color: var(--navy);
}

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

.faq-item summary::after {
  content: "";
  position: absolute;
  right: 6px;
  top: 50%;
  width: 9px;
  height: 9px;
  border-right: 1.5px solid var(--muted);
  border-bottom: 1.5px solid var(--muted);
  transform: translateY(-70%) rotate(45deg);
  transition: transform 0.25s var(--ease);
}

.faq-item[open] summary::after {
  transform: translateY(-30%) rotate(-135deg);
}

.faq-item p {
  margin: 0;
  padding: 0 40px 26px 0;
  font-size: 14.5px;
  line-height: 1.95;
  color: var(--ink);
}

/* ---------- CTA ---------- */

.cta {
  background: var(--navy);
  border-radius: var(--radius-xl);
  padding: 56px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 420px;
  gap: 56px;
  align-items: start;
  position: relative;
  overflow: hidden;
}

.cta::before {
  content: "";
  position: absolute;
  width: 520px;
  height: 520px;
  right: -140px;
  top: -220px;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(193, 39, 45, 0.28), transparent 68%);
  pointer-events: none;
}

.cta-copy {
  display: flex;
  flex-direction: column;
  gap: 18px;
  position: relative;
}

.cta-copy h2 {
  margin: 0;
  font-size: clamp(28px, 2.8vw, 40px);
  line-height: 1.36;
  font-weight: 700;
  color: #fff;
}

.cta-copy p {
  margin: 0;
  font-size: 15px;
  line-height: 1.9;
  color: #a9b6ce;
  max-width: 460px;
}

.cta-tel {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 15px;
  font-weight: 500;
  color: #fff;
}

.cta-tel svg {
  width: 16px;
  height: 16px;
  stroke: #c7a06a;
  fill: none;
  stroke-width: 1.6;
}

.cta-addr {
  font-size: 13px;
  line-height: 1.8;
  color: #8794ad;
  max-width: 420px;
}

.form {
  display: flex;
  flex-direction: column;
  gap: 12px;
  position: relative;
}

.form input {
  width: 100%;
  height: 50px;
  padding: 0 18px;
  border-radius: 12px;
  border: 1px solid transparent;
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  font-size: 14px;
  outline: none;
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
  appearance: none;
}

.form input::placeholder {
  color: #8d9ab3;
}

.form input:focus {
  border-color: rgba(255, 255, 255, 0.42);
  background: rgba(255, 255, 255, 0.12);
}

/* ---------- 自定义下拉（替代原生 select，外观与输入框一致） ---------- */

.field-select {
  position: relative;
  width: 100%;
}

.field-select input[type="hidden"] {
  display: none;
}

.field-select__trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  width: 100%;
  height: 50px;
  padding: 0 16px 0 18px;
  border: 1px solid transparent;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.08);
  font-family: inherit;
  font-size: 14px;
  line-height: 1;
  color: #fff;
  text-align: left;
  cursor: pointer;
  outline: none;
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.field-select__trigger:hover {
  background: rgba(255, 255, 255, 0.11);
}

.field-select__trigger:focus-visible,
.field-select.is-open .field-select__trigger {
  border-color: rgba(255, 255, 255, 0.42);
  background: rgba(255, 255, 255, 0.12);
}

.field-select__label {
  flex: 1 1 auto;
  min-width: 0;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  color: #8d9ab3;
  transition: color 0.2s var(--ease);
}

.field-select.has-value .field-select__label {
  color: #fff;
}

.field-select__arrow {
  flex: none;
  width: 15px;
  height: 15px;
  fill: none;
  stroke: #8d9ab3;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: transform 0.24s var(--ease), stroke 0.2s var(--ease);
}

.field-select.is-open .field-select__arrow {
  stroke: #fff;
  transform: rotate(180deg);
}

/* 面板用 fixed 定位：不受 .cta 的 overflow:hidden 裁切，坐标由脚本计算 */
.field-select__menu {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 90;
  margin: 0;
  padding: 6px;
  list-style: none;
  max-height: min(268px, 46vh);
  overflow-y: auto;
  overscroll-behavior: contain;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 12px;
  background: #1e2a48;
  box-shadow: 0 26px 60px rgba(5, 10, 22, 0.6), 0 2px 8px rgba(5, 10, 22, 0.45);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(-6px) scale(0.99);
  transform-origin: center top;
  transition: opacity 0.18s var(--ease), transform 0.18s var(--ease),
    visibility 0.18s;
}

.field-select.is-open .field-select__menu {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: none;
}

.field-select.is-up .field-select__menu {
  transform-origin: center bottom;
  transform: translateY(6px) scale(0.99);
}

.field-select.is-up.is-open .field-select__menu {
  transform: none;
}

.field-select__option {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 12px;
  border-radius: 8px;
  font-size: 13.5px;
  line-height: 1.5;
  color: #c3cee1;
  cursor: pointer;
  transition: background 0.15s var(--ease), color 0.15s var(--ease);
}

.field-select__option > span {
  flex: 1 1 auto;
  min-width: 0;
}

.field-select__option:hover,
.field-select__option.is-active {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}

.field-select__tick {
  flex: none;
  width: 13px;
  height: 13px;
  fill: none;
  stroke: #e8575d;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  opacity: 0;
  transition: opacity 0.15s var(--ease);
}

.field-select__option[aria-selected="true"] {
  color: #fff;
}

.field-select__option[aria-selected="true"] .field-select__tick {
  opacity: 1;
}

.field-select__menu::-webkit-scrollbar {
  width: 8px;
}

.field-select__menu::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.16);
  border-radius: 99px;
}

.field-select__menu::-webkit-scrollbar-track {
  background: transparent;
}

.form .btn {
  margin-top: 4px;
}

.form-note {
  margin: 2px 0 0;
  font-size: 11.5px;
  line-height: 1.7;
  color: #7d8aa5;
}

.form-ok {
  display: none;
  padding: 14px 16px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  font-size: 13.5px;
  line-height: 1.7;
}

.form.is-sent .form-ok {
  display: block;
}

.form.is-sent input,
.form.is-sent .field-select,
.form.is-sent .form-row,
.form.is-sent .form-error,
.form.is-sent .btn {
  display: none;
}

/* ---------- 短信验证码行 ---------- */

.form .form-row {
  display: flex;
  gap: 10px;
}

.form .form-row input {
  flex: 1 1 auto;
  width: auto;
  min-width: 0;
}

.form .btn--sms {
  flex: 0 0 auto;
  height: 50px;
  margin-top: 0;
  padding: 0 18px;
  border-radius: 12px;
  border-color: rgba(255, 255, 255, 0.26);
  background: transparent;
  font-size: 13.5px;
  font-weight: 500;
}

.form .btn--sms:hover {
  transform: none;
  border-color: rgba(255, 255, 255, 0.42);
  background: rgba(255, 255, 255, 0.14);
  box-shadow: none;
}

.form .btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.form-error {
  margin: 0;
  font-size: 12.5px;
  line-height: 1.6;
  color: #ffb0b4;
}

/* ---------- 页脚 ---------- */

.footer {
  background: var(--cream);
  padding: 64px 100px 32px;
}

.footer-top {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 60px;
  align-items: start;
}

.footer-brand p {
  margin: 16px 0 0;
  font-size: 13.5px;
  line-height: 1.9;
  color: var(--ink);
}

.footer-links {
  display: flex;
  gap: 72px;
}

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

.footer-col b {
  font-size: 13px;
  font-weight: 700;
  color: var(--navy);
}

.footer-col a,
.footer-col span {
  font-size: 13px;
  color: var(--muted);
  transition: color 0.2s var(--ease);
}

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

.footer-word {
  margin: 40px 0 0;
  padding-top: 24px;
  border-top: 1px solid var(--line-2);
  font-family: "Inter", Arial, sans-serif;
  font-size: clamp(64px, 15.6vw, 224px);
  font-weight: 700;
  line-height: 0.92;
  letter-spacing: 0.005em;
  color: #ece6d8;
  user-select: none;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  margin-top: 8px;
  font-size: 12px;
  color: var(--muted);
}

/* ---------- 页面通用页头（内页首屏） ---------- */

.page-hero {
  display: grid;
  grid-template-columns: minmax(0, 640px) minmax(0, 1fr);
  gap: 60px;
  align-items: center;
  padding-top: 56px;
  padding-bottom: 64px;
}

.crumb {
  font-size: 12px;
  color: var(--muted-2);
  letter-spacing: 0.04em;
}

.crumb a:hover {
  color: var(--navy);
}

.hero-flags {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--muted);
}

.hero-flags i {
  width: 4px;
  height: 4px;
  border-radius: 999px;
  background: #c9c2b2;
}

/* ---------- 深色视觉卡（合伙人页） ---------- */

.dark-visual {
  position: relative;
  width: 100%;
  aspect-ratio: 560 / 520;
  border-radius: var(--radius-xl);
  background: linear-gradient(160deg, #1b2b4f 0%, #0e1830 62%, #101d3a 100%);
  overflow: hidden;
  padding: 36px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.net-map {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.95;
}

.dark-visual .visual-tag {
  top: 32px;
  left: 32px;
}

.dv-stats {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  background: rgba(255, 255, 255, 0.96);
  border-radius: 20px;
  padding: 22px 24px;
}

.dv-stats .stat {
  padding: 0 14px;
}

.dv-stats .stat b {
  font-size: 22px;
}

.dv-stats .stat span {
  font-size: 11.5px;
}

.dv-note {
  position: relative;
  z-index: 2;
  margin-top: 14px;
  font-size: 12px;
  color: #93a1bb;
  letter-spacing: 0.02em;
}

/* ---------- 平面图卡（会员页） ---------- */

.plan-visual {
  position: relative;
  width: 100%;
  aspect-ratio: 560 / 520;
  border-radius: var(--radius-xl);
  background: var(--cream);
  border: 1px solid var(--line-2);
  overflow: hidden;
  padding: 32px;
}

.plan-visual svg {
  width: 100%;
  height: 100%;
}

.plan-label {
  position: absolute;
  left: 28px;
  bottom: 24px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.plan-legend {
  position: absolute;
  right: 28px;
  top: 28px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 12px;
  color: var(--ink);
}

.plan-legend span {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.86);
  padding: 6px 10px;
  border-radius: 8px;
}

.plan-legend i {
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--red);
}

.plan-legend span:nth-child(2) i {
  background: #c9b48c;
}

.plan-legend span:nth-child(3) i {
  background: #9aa7bd;
}

.plan-legend span:nth-child(4) i {
  background: #d8d1c0;
}

/* ---------- 三档方案 ---------- */

.plans {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  align-items: stretch;
}

.plan {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  padding: 32px 30px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.plan--feature {
  background: var(--navy);
  border-color: var(--navy);
  color: #fff;
  position: relative;
}

.plan-tier {
  font-family: "Inter", Arial, sans-serif;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.plan-tier em {
  font-style: normal;
  font-family: "Noto Sans SC", sans-serif;
  font-size: 11px;
  letter-spacing: 0.06em;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--red);
  color: #fff;
}

.plan h3 {
  margin: 0;
  font-size: 26px;
  font-weight: 700;
  color: var(--navy);
}

.plan--feature h3 {
  color: #fff;
}

.plan p {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--ink);
  min-height: 52px;
}

.plan--feature p {
  color: #a9b6ce;
}

.plan ul {
  margin: 4px 0 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  border-top: 1px solid var(--line);
  padding-top: 18px;
}

.plan--feature ul {
  border-color: rgba(255, 255, 255, 0.14);
}

.plan li {
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--ink);
  padding-left: 14px;
  position: relative;
}

.plan li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 5px;
  height: 5px;
  border-radius: 999px;
  background: var(--red);
}

.plan--feature li {
  color: #d6dded;
}

.plan .btn {
  margin-top: auto;
}

/* ---------- 表格 ---------- */

.table {
  border-top: 1px solid var(--line-2);
}

.tr {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr) 300px;
  gap: 24px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line-2);
  align-items: start;
  font-size: 14.5px;
}

.tr--head {
  padding: 12px 0;
  font-size: 11px;
  font-family: "Inter", Arial, sans-serif;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
}

.tr b {
  font-weight: 700;
  color: var(--navy);
}

.tr span {
  color: var(--ink);
  line-height: 1.8;
}

.tr .cell-end {
  color: var(--muted);
  font-size: 13.5px;
}

.table--cmp .tr {
  grid-template-columns: 160px minmax(0, 1fr) minmax(0, 1fr);
}

.table--cmp .tr--head span {
  color: var(--gold);
}

.table--cmp .tr span:nth-child(2) {
  color: var(--navy);
  font-weight: 500;
}

/* ---------- 准入条件 ---------- */

.quals {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 4px;
}

.qual {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--ink);
}

.qual svg {
  width: 18px;
  height: 18px;
  flex: none;
  margin-top: 6px;
  stroke: var(--red);
  fill: none;
  stroke-width: 1.8;
}

.qual--hint {
  margin-top: 6px;
  padding: 16px 18px;
  border-radius: 12px;
  background: var(--sand);
  color: var(--gold-deep);
  font-size: 13.5px;
  line-height: 1.8;
}

/* ---------- 竖排流程（合伙人页） ---------- */

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

.vstep {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line-2);
}

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

.vstep b {
  display: block;
  font-size: 15.5px;
  font-weight: 700;
  color: var(--navy);
}

.vstep p {
  margin: 4px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 空间实景大图 ---------- */

.photo-wide {
  position: relative;
  border-radius: var(--radius-l);
  overflow: hidden;
  background: var(--navy);
}

.photo-wide img {
  width: 100%;
  aspect-ratio: 1240 / 460;
  object-fit: cover;
  display: block;
}

.photo-wide .visual-tag {
  top: auto;
  bottom: 24px;
  left: 24px;
  background: rgba(13, 24, 46, 0.58);
}

/* ---------- 引用 ---------- */

.pull {
  display: flex;
  gap: 14px;
  margin-top: 10px;
}

.pull::before {
  content: "";
  width: 3px;
  border-radius: 2px;
  background: var(--red);
  flex: none;
}

.pull p {
  margin: 0;
  font-size: 15px;
  line-height: 1.87;
  font-weight: 500;
  color: var(--navy);
}

/* ---------- 入场动画 ---------- */

.reveal {
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

/* 只有「首屏之外」的元素才隐藏等待入场，避免任何情况下内容不可见 */
.reveal.pre {
  opacity: 0;
  transform: translateY(18px);
}

@media (prefers-reduced-motion: reduce) {
  .reveal.pre {
    opacity: 1;
    transform: none;
    transition: none;
  }
  html {
    scroll-behavior: auto;
  }
}

/* ---------- 响应式 ---------- */

@media (max-width: 1400px) {
  .section {
    padding: 84px 72px;
  }
  .pillars {
    padding: 32px 72px;
  }
  .footer {
    padding: 56px 72px 28px;
  }
}

@media (max-width: 1180px) {
  .section {
    padding: 72px 48px;
  }
  .pillars {
    padding: 28px 48px;
    grid-template-columns: repeat(2, 1fr);
    row-gap: 28px;
  }
  .pillar:nth-child(3) {
    padding-left: 0;
    border-left: 0;
  }
  .hero,
  .page-hero {
    grid-template-columns: 1fr;
    gap: 40px;
    padding-top: 48px;
  }
  .visual-card,
  .dark-visual,
  .plan-visual {
    max-width: 560px;
  }
  .split,
  .split--wide,
  .faq {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .steps {
    grid-template-columns: repeat(3, 1fr);
    row-gap: 8px;
  }
  .step:nth-child(3) {
    border-right: 0;
  }
  .row {
    grid-template-columns: 40px minmax(0, 1fr);
  }
  .row-body {
    grid-column: 2;
  }
  .cta {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 40px;
  }
  .plans {
    grid-template-columns: 1fr;
  }
  .footer {
    padding: 48px 48px 24px;
  }
  .footer-top {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .nav.is-open .nav-links {
    display: flex;
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 8px 24px 20px;
    background: #fff;
    border-bottom: 1px solid var(--line);
  }
  .nav.is-open .nav-links a {
    padding: 12px 0;
    width: 100%;
    font-size: 15px;
  }
}

@media (max-width: 860px) {
  .grid--3 {
    grid-template-columns: 1fr;
  }
  .profit-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .space-cards {
    grid-template-columns: 1fr;
  }
  .dual {
    grid-template-columns: 1fr;
  }
  .tr,
  .table--cmp .tr {
    grid-template-columns: 1fr;
    gap: 6px;
  }
  .tr--head {
    display: none;
  }
  .tr b {
    font-size: 15px;
  }
  .footer-links {
    gap: 40px;
    flex-wrap: wrap;
  }
}

@media (max-width: 680px) {
  .section {
    padding: 56px 24px;
  }
  .pillars {
    padding: 24px;
    grid-template-columns: 1fr;
  }
  .pillar {
    padding: 0;
    border-left: 0;
  }
  .hero,
  .page-hero {
    padding-top: 36px;
    padding-bottom: 44px;
  }
  .stat-card {
    position: static;
    margin: 14px 0 0;
    grid-template-columns: 1fr;
    gap: 14px;
    padding: 20px 20px;
    box-shadow: var(--shadow-soft);
  }
  .stat {
    padding: 0;
    border-left: 0;
    border-top: 1px solid var(--line);
    padding-top: 12px;
  }
  .stat:first-child {
    border-top: 0;
    padding-top: 0;
  }
  .visual-card,
  .dark-visual,
  .plan-visual {
    aspect-ratio: 4 / 5;
  }
  .steps {
    grid-template-columns: 1fr 1fr;
  }
  .step {
    padding-right: 14px;
    border-right: 0;
  }
  .profit-grid,
  .grid--2 {
    grid-template-columns: 1fr;
  }
  .cta {
    padding: 28px 22px;
    border-radius: 20px;
  }
  .footer {
    padding: 40px 24px 20px;
  }
  .plan-legend {
    display: none;
  }
  .dual-card {
    padding: 28px 22px;
  }
  .chips {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   补充：导航容器、深色卡片、原则网格、四列网格
   ========================================================================== */

.nav-inner {
  width: 100%;
  max-width: 1440px;
  padding: 0 100px;
  justify-content: space-between;
}

.nav-links {
  margin-left: 0;
}

.card--dark {
  background: var(--navy);
  border-color: var(--navy);
}

.card--dark h4 {
  color: #fff;
}

.card--dark p {
  color: #a9b6ce;
}

.card--dark .mono-num {
  color: #c7a06a;
}

.card--dark:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 36px rgba(13, 24, 46, 0.22);
}

.principle {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 26px 0 22px;
  border-top: 1px solid var(--line);
}

.principle b {
  font-size: 20px;
  font-weight: 700;
  color: var(--navy);
  line-height: 1.5;
}

.principle p {
  margin: 0;
  font-size: 15px;
  line-height: 1.9;
  color: var(--ink);
}

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

.table--cmp .tr--head span:nth-child(2),
.table--cmp .tr--head span:nth-child(3) {
  color: var(--gold);
  font-weight: 600;
}

@media (max-width: 1400px) {
  .nav-inner {
    padding: 0 72px;
  }
}

@media (max-width: 1180px) {
  .nav-inner {
    padding: 0 48px;
  }
  .grid--4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 680px) {
  .nav-inner {
    padding: 0 24px;
  }
  .grid--4 {
    grid-template-columns: 1fr;
  }
}


/* 首屏段不使用整段内边距，由 .hero / .page-hero 自己控制 */
.section--flush {
  padding-top: 0;
  padding-bottom: 0;
}


/* 平面图图例移到卡片外，避免压住房间 */
.plan-legend-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-top: 14px;
}

.plan-legend-row span {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 12px;
  border-radius: 10px;
  background: #fff;
  border: 1px solid var(--line);
  font-size: 12.5px;
  color: var(--ink);
  white-space: nowrap;
}

.plan-legend-row i {
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--red);
  flex: none;
}

.plan-legend-row span:nth-child(2) i { background: #c9b48c; }
.plan-legend-row span:nth-child(3) i { background: #9aa7bd; }
.plan-legend-row span:nth-child(4) i { background: #d8d1c0; }

@media (max-width: 860px) {
  .plan-legend-row { grid-template-columns: repeat(2, 1fr); }
}


/* 导航折叠阈值：1024 以下才收进汉堡菜单 */
@media (max-width: 1120px) {
  .nav-links {
    display: none;
  }
  .nav-right {
    display: none;
  }
  .nav-toggle {
    display: flex;
  }
}


@media (max-width: 860px) {
  .photo-wide img {
    aspect-ratio: 4 / 3;
  }
}


@media (max-width: 860px) {
  .photo-wide img {
    aspect-ratio: 4 / 3;
  }
}