/* roulang page: index */
:root {
  --brand-purple: #5A2BD9;
  --brand-pink: #E84FA3;
  --accent-amber: #F5A33C;
  --accent-lime: #C6F432;
  --success-green: #2CB67D;
  --danger-red: #F45B5B;
  --warn-yellow: #FFB800;
  --bg-soft: #F6F4FA;
  --card-bg: #FFFFFF;
  --dark-deep: #171125;
  --dark-extra: #150F25;
  --text-main: #1F1A2E;
  --text-muted: #706A87;
  --border-main: rgba(44, 28, 70, 0.1);
  --brand-gradient: linear-gradient(120deg, #5A2BD9, #E84FA3);
  --radius-lg: 32px;
  --radius-md: 16px;
  --shadow-sm: 0 8px 24px rgba(44, 28, 70, 0.08);
  --shadow-lg: 0 16px 40px rgba(44, 28, 70, 0.16);
  --header-height: 64px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-padding-top: 90px;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg-soft);
  color: var(--text-main);
  line-height: 1.75;
  font-size: 1rem;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  margin: 0 0 0.5rem;
  color: var(--text-main);
}

h1 {
  font-size: clamp(2.1rem, 4vw + 1rem, 3.4rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: 0.01em;
}

h2 {
  font-size: clamp(1.6rem, 2.4vw + 0.8rem, 2.4rem);
  font-weight: 700;
  line-height: 1.3;
}

h3 {
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.4;
}

p {
  margin: 0 0 1.25rem;
}

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

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

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

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

button {
  border: none;
  background: none;
}

.wrap {
  width: 100%;
  max-width: 1240px;
  margin-inline: auto;
  padding-inline: clamp(1rem, 3vw, 2rem);
}

.section {
  padding-block: clamp(4rem, 8vw, 6.5rem);
}

.bg-white {
  background: #fff;
}

.bg-soft {
  background: var(--bg-soft);
}

.text-muted {
  color: var(--text-muted);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--brand-purple);
  letter-spacing: 0.04em;
  margin-bottom: 1rem;
}

.eyebrow::before {
  content: "";
  width: 18px;
  height: 3px;
  border-radius: 999px;
  background: var(--brand-gradient);
}

.section-head {
  max-width: 780px;
  margin-bottom: clamp(2.2rem, 4vw, 3.4rem);
}

.section-head p {
  color: var(--text-muted);
  font-size: 1.05rem;
  margin-bottom: 0;
}

/* Buttons */
.btn {
  --bs-btn-border-radius: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 48px;
  padding: 0.75rem 1.4rem;
  border-radius: 16px;
  font-weight: 700;
  line-height: 1.2;
  transition: transform 0.2s ease, box-shadow 0.2s ease, filter 0.2s ease, background 0.2s ease;
  border: 1px solid transparent;
}

.btn-brand {
  background: var(--brand-gradient);
  color: #fff;
  box-shadow: 0 10px 24px rgba(232, 79, 163, 0.18);
}

.btn-brand:hover, .btn-brand:active {
  color: #fff;
  filter: brightness(1.06);
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(90, 43, 217, 0.24);
}

.btn-outline {
  background: transparent;
  border: 1px solid rgba(90, 43, 217, 0.4);
  color: var(--brand-purple);
}

.btn-outline:hover, .btn-outline:active {
  background: rgba(90, 43, 217, 0.06);
  border-color: var(--brand-purple);
  transform: translateY(-2px);
}

.btn-white {
  background: #fff;
  color: var(--brand-purple);
  box-shadow: 0 8px 20px rgba(255, 255, 255, 0.12);
}

.btn-white:hover {
  color: var(--brand-purple);
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(255, 255, 255, 0.2);
}

.btn-sm, .btn-small {
  min-height: 40px;
  padding: 0.45rem 1rem;
  font-size: 0.95rem;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1040;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-main);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: var(--header-height);
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin-right: auto;
  min-width: 0;
}

.brand-mark {
  flex: 0 0 auto;
  display: flex;
}

.brand-text {
  font-weight: 800;
  font-size: 1.02rem;
  letter-spacing: 0.01em;
  color: var(--text-main);
  white-space: nowrap;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 0.75rem 1.25rem;
  flex-wrap: wrap;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-list .nav-link {
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 1rem;
  border-radius: 999px;
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.97rem;
  transition: background 0.2s, color 0.2s;
}

.nav-list .nav-link:hover {
  background: rgba(90, 43, 217, 0.06);
  color: var(--brand-purple);
}

.nav-list .nav-link.active {
  background: rgba(90, 43, 217, 0.1);
  color: var(--brand-purple);
}

.nav-cta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-toggler {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(90, 43, 217, 0.07);
}

.nav-toggler .bar {
  display: block;
  width: 22px;
  height: 2px;
  border-radius: 2px;
  background: var(--text-main);
  margin-inline: auto;
}

/* Hero */
.hero {
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  min-height: clamp(560px, 92vh, 820px);
  padding-block: 2.5rem 3.5rem;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 10% 18%, rgba(90, 43, 217, 0.16), transparent 36%),
    radial-gradient(circle at 85% 12%, rgba(232, 79, 163, 0.12), transparent 38%),
    radial-gradient(circle at 60% 92%, rgba(245, 163, 60, 0.1), transparent 42%);
}

.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: clamp(2rem, 4vw, 4rem);
  width: 100%;
}

.hero-content {
  padding-block: 1.5rem;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  background: #fff;
  border: 1px solid var(--border-main);
  border-radius: 999px;
  padding: 0.4rem 1rem 0.4rem 0.7rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  box-shadow: var(--shadow-sm);
  margin-bottom: 1.5rem;
}

.live-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-lime);
  box-shadow: 0 0 0 4px rgba(198, 244, 50, 0.28);
}

.hero-title {
  color: var(--text-main);
  margin-bottom: 1.2rem;
}

.hero-sub {
  color: var(--text-muted);
  font-size: 1.125rem;
  line-height: 1.85;
  max-width: 620px;
  margin-bottom: 1.8rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2rem;
}

.hero-points {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1.4rem;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.hero-points li {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.hero-points li::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--brand-pink);
  flex: 0 0 auto;
}

.hero-panel {
  position: relative;
  border-radius: 40px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  background: linear-gradient(150deg, rgba(90, 43, 217, 0.24), rgba(23, 17, 37, 0.42)), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  padding: clamp(1rem, 2vw, 1.7rem);
  min-height: 420px;
  display: flex;
  align-items: flex-end;
}

.hero-panel::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(200deg, rgba(23, 17, 37, 0.15), rgba(23, 17, 37, 0.55));
  border-radius: 40px;
  pointer-events: none;
}

.browser-shell {
  position: relative;
  z-index: 2;
  width: 100%;
  border-radius: 24px;
  background: rgba(23, 17, 37, 0.68);
  border: 1px solid rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(8px);
  overflow: hidden;
}

.browser-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 16px;
  background: rgba(255, 255, 255, 0.1);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.browser-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.browser-dot.red { background: #f45b5b; }
.browser-dot.amber { background: #f5a33c; }
.browser-dot.green { background: #2cb67d; }

.browser-address {
  margin-left: 0.75rem;
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  padding: 0.24rem 0.9rem;
  color: rgba(255, 255, 255, 0.86);
  font-size: 0.82rem;
  flex: 1;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.hero-login-card {
  margin: 16px;
  padding: 18px 20px 22px;
  background: #fff;
  border-radius: 20px;
  color: var(--text-main);
}

.hero-login-card .mini-tag {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.2rem;
}

.hero-login-card strong {
  display: block;
  font-size: 1.35rem;
  line-height: 1.4;
  margin-bottom: 0.9rem;
}

.fake-field {
  width: 100%;
  height: 44px;
  border-radius: 12px;
  background: #f3f0f9;
  border: 1px solid rgba(44, 28, 70, 0.08);
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  padding: 0 0.9rem;
  font-size: 0.9rem;
  color: #9b94b2;
}

.fake-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  width: 100%;
  margin-top: 0.9rem;
  background: var(--brand-gradient);
  color: #fff;
  border-radius: 14px;
  font-weight: 700;
  font-size: 0.95rem;
}

.floating-note {
  position: absolute;
  top: 18px;
  right: 22px;
  z-index: 3;
  background: rgba(255, 255, 255, 0.92);
  border-radius: 18px;
  padding: 0.75rem 1rem 0.75rem 0.9rem;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--text-main);
  font-weight: 700;
  font-size: 0.9rem;
}

.floating-note span {
  color: var(--text-muted);
  font-weight: 400;
  font-size: 0.8rem;
}

.floating-note .note-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  background: rgba(90, 43, 217, 0.1);
  border-radius: 10px;
  color: var(--brand-purple);
}

/* Steps */
.steps-section {
  background: #fff;
  border-top: 1px solid var(--border-main);
  border-bottom: 1px solid var(--border-main);
}

.step-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

.step-card {
  background: var(--bg-soft);
  border: 1px solid var(--border-main);
  border-radius: 24px;
  padding: 1.5rem 1.4rem 1.6rem;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  position: relative;
  overflow: hidden;
}

.step-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.step-card.featured {
  background: var(--dark-deep);
  color: #fff;
  border-color: transparent;
}

.step-card.featured .step-title,
.step-card.featured .step-desc,
.step-card.featured .step-badge {
  color: #fff;
}

.step-card.featured::after {
  content: "";
  position: absolute;
  right: -40px;
  top: -40px;
  width: 120px;
  height: 120px;
  background: linear-gradient(130deg, var(--brand-purple), var(--brand-pink));
  opacity: 0.7;
  border-radius: 50%;
}

.step-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.step-num {
  font-weight: 800;
  font-size: 1.5rem;
  background: var(--brand-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1;
}

.step-card.featured .step-num {
  background: none;
  color: #fff;
  -webkit-text-fill-color: currentColor;
}

.step-badge {
  display: inline-flex;
  align-items: center;
  background: #fff;
  border: 1px solid var(--border-main);
  border-radius: 999px;
  padding: 0.25rem 0.7rem;
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 600;
}

.step-card.featured .step-badge {
  background: rgba(255, 255, 255, 0.18);
  border-color: rgba(255, 255, 255, 0.22);
}

.step-title {
  margin-bottom: 0.6rem;
  color: var(--text-main);
}

.step-desc {
  color: var(--text-muted);
  font-size: 0.97rem;
  line-height: 1.75;
  margin-bottom: 0;
}

.step-card.featured .step-desc {
  color: rgba(255, 255, 255, 0.78);
}

/* Features / highlights */
.feature-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.feature-card {
  background: var(--card-bg);
  border: 1px solid var(--border-main);
  border-radius: 28px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  display: flex;
  flex-direction: column;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.feature-media {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #ece8f6;
  position: relative;
}

.feature-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.feature-card:hover .feature-media img {
  transform: scale(1.03);
}

.feature-body {
  padding: 1.5rem 1.5rem 1.65rem;
  flex: 1;
}

.feature-body h3 {
  margin-bottom: 0.65rem;
}

.feature-body p {
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: 1rem;
}

.feature-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tag {
  display: inline-flex;
  align-items: center;
  background: rgba(90, 43, 217, 0.08);
  color: var(--brand-purple);
  padding: 0.28rem 0.85rem;
  border-radius: 999px;
  font-size: 0.86rem;
  font-weight: 600;
}

/* Compare */
.compare-section {
  background: #fff;
  border-top: 1px solid var(--border-main);
  border-bottom: 1px solid var(--border-main);
}

.compare-lead h2 {
  margin-bottom: 1rem;
}

.compare-lead p {
  color: var(--text-muted);
  font-size: 1.02rem;
}

.compare-note {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background: rgba(198, 244, 50, 0.2);
  color: var(--dark-deep);
  padding: 0.6rem 1rem;
  border-radius: 14px;
  font-size: 0.95rem;
  font-weight: 700;
  border-left: 4px solid var(--accent-lime);
  margin-top: 1.2rem;
}

.compare-table-card {
  background: var(--card-bg);
  border: 1px solid var(--border-main);
  border-radius: 28px;
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.compare-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  min-width: 640px;
}

.compare-table th, .compare-table td {
  padding: 0.85rem 0.9rem;
  text-align: center;
  border-bottom: 1px solid rgba(44, 28, 70, 0.08);
  font-size: 0.94rem;
  vertical-align: middle;
}

.compare-table th:first-child, .compare-table td:first-child {
  text-align: left;
  padding-left: 1.3rem;
}

.compare-table thead th {
  background: var(--dark-deep);
  color: #fff;
  font-weight: 700;
  padding: 1rem;
}

.compare-table thead th:first-child {
  border-top-left-radius: 28px;
}

.compare-table thead th:last-child {
  border-top-right-radius: 28px;
}

.compare-table tbody tr:last-child td:first-child {
  border-bottom-left-radius: 28px;
}

.compare-table tbody tr:last-child td:last-child {
  border-bottom-right-radius: 28px;
}

.compare-table tbody tr:last-child td {
  border-bottom: 0;
}

.compare-table .plan-highlight {
  background: rgba(90, 43, 217, 0.06);
}

.compare-table .plan-highlight-column {
  background: linear-gradient(180deg, rgba(90, 43, 217, 0.1), rgba(232, 79, 163, 0.04));
  font-weight: 700;
}

.plan-label {
  margin-bottom: 0.3rem;
  font-weight: 800;
}

.plan-tagline {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* CTA form */
.cta-form-section {
  background: var(--dark-extra);
  position: relative;
  overflow: hidden;
  color: #fff;
}

.cta-form-section::before {
  content: "";
  position: absolute;
  top: -40%;
  left: -10%;
  width: 60%;
  height: 80%;
  background: radial-gradient(circle, rgba(90, 43, 217, 0.45), transparent 70%);
}

.cta-form-section::after {
  content: "";
  position: absolute;
  bottom: -30%;
  right: -10%;
  width: 55%;
  height: 70%;
  background: radial-gradient(circle, rgba(232, 79, 163, 0.32), transparent 70%);
}

.cta-form-section .wrap {
  position: relative;
  z-index: 2;
}

.cta-copy h2 {
  color: #fff;
}

.cta-copy p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 1.05rem;
}

.cta-feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 0.6rem;
}

.cta-feature-list svg {
  margin-top: 0.28rem;
  flex: 0 0 auto;
}

.support-form {
  background: #fff;
  border-radius: 32px;
  padding: clamp(1.2rem, 3vw, 2.2rem);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.28);
  color: var(--text-main);
}

.form-title {
  margin-bottom: 1.2rem;
}

.form-sub {
  color: var(--text-muted);
  margin-bottom: 1.4rem;
  font-size: 0.95rem;
}

.field-label {
  display: block;
  font-size: 0.92rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
  color: var(--text-main);
}

.field-input {
  display: block;
  width: 100%;
  min-height: 48px;
  border: 1px solid rgba(44, 28, 70, 0.15);
  border-radius: 14px;
  background: #fff;
  outline: none;
  padding: 0.62rem 0.9rem;
  color: var(--text-main);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.field-input:focus {
  border-color: var(--brand-purple);
  box-shadow: 0 0 0 4px rgba(90, 43, 217, 0.1);
}

textarea.field-input {
  resize: vertical;
  min-height: 100px;
}

.form-tip {
  margin-top: 0.75rem;
  margin-bottom: 0;
  color: var(--text-muted);
  font-size: 0.85rem;
  text-align: center;
}

.success-box {
  opacity: 0;
  pointer-events: none;
  background: rgba(44, 182, 125, 0.12);
  border: 1px solid rgba(44, 182, 125, 0.3);
  color: var(--dark-deep);
  border-radius: 14px;
  padding: 0.9rem 1.1rem;
  font-weight: 700;
  margin-top: 1rem;
  transition: opacity 0.3s ease;
}

/* News */
.news-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.news-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.2rem;
}

.news-card {
  background: #fff;
  border: 1px solid var(--border-main);
  border-radius: 22px;
  padding: 1.4rem;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
  display: flex;
  flex-direction: column;
}

.news-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}

.news-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.8rem;
}

.news-card .tag {
  font-size: 0.78rem;
}

.news-card time {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.news-card h3 {
  font-size: 1.1rem;
  line-height: 1.55;
  margin-bottom: 0.55rem;
}

.news-card h3 a {
  color: var(--text-main);
  transition: color 0.2s;
}

.news-card h3 a:hover {
  color: var(--brand-purple);
}

.news-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
  flex: 1;
  margin-bottom: 1rem;
}

.link-more {
  font-weight: 700;
  color: var(--brand-purple);
  font-size: 0.95rem;
}

.link-more:hover {
  color: var(--brand-pink);
}

.empty-state {
  grid-column: 1 / -1;
  background: #fff;
  border: 1px dashed rgba(44, 28, 70, 0.18);
  border-radius: 24px;
  padding: 2.5rem 1.5rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 1.05rem;
}

/* FAQ */
.faq-section {
  background: var(--bg-soft);
  border-top: 1px solid var(--border-main);
}

.faq-left {
  margin-bottom: 2.5rem;
}

.faq-accordion .accordion-item {
  border: 1px solid var(--border-main);
  border-radius: 18px;
  overflow: hidden;
  margin-bottom: 0.75rem;
  background: #fff;
}

.faq-accordion .accordion-header {
  margin: 0;
}

.faq-accordion .accordion-button {
  width: 100%;
  text-align: left;
  background: #fff;
  color: var(--text-main);
  font-weight: 700;
  padding: 1rem 1.2rem;
  border-radius: 18px;
  transition: background 0.2s;
}

.faq-accordion .accordion-button:not(.collapsed) {
  background: rgba(90, 43, 217, 0.05);
  color: var(--brand-purple);
  box-shadow: none;
}

.faq-accordion .accordion-button:focus {
  box-shadow: 0 0 0 3px rgba(90, 43, 217, 0.18);
}

.faq-accordion .accordion-button::after {
  background-image: none;
  content: "+";
  width: auto;
  height: auto;
  font-weight: 400;
  font-size: 1.6rem;
  line-height: 1;
  color: var(--brand-purple);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.25s;
}

.faq-accordion .accordion-button:not(.collapsed)::after {
  transform: rotate(45deg);
}

.faq-accordion .accordion-body {
  padding: 1rem 1.2rem 1.3rem;
  color: var(--text-muted);
  line-height: 1.85;
  border-top: 1px solid var(--border-main);
}

.faq-link-btn {
  margin-top: 1rem;
}

/* Footer */
.site-footer {
  background: var(--dark-deep);
  color: rgba(255, 255, 255, 0.76);
  padding-top: 3.5rem;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
  gap: 2.5rem;
  padding-bottom: 2.8rem;
}

.footer-brand-col .brand-logo {
  margin-bottom: 1rem;
  color: #fff;
}

.footer-brand-col .brand-logo .brand-text {
  color: #fff;
}

.footer-brand-col p {
  color: rgba(255, 255, 255, 0.64);
  font-size: 0.95rem;
  max-width: 330px;
}

.footer-col h4 {
  color: #fff;
  font-size: 1rem;
  margin-bottom: 1rem;
}

.footer-links li {
  margin-bottom: 0.5rem;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.95rem;
  transition: color 0.2s, padding-left 0.2s;
}

.footer-links a:hover {
  color: #fff;
  padding-left: 4px;
}

.footer-note {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-block: 1.2rem;
}

.footer-bottom-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.footer-bottom-inner p {
  margin-bottom: 0;
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.48);
}

@media (max-width: 1199.98px) {
  .hero-inner {
    grid-template-columns: 1fr 0.9fr;
  }

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

@media (max-width: 991.98px) {
  .nav-toggler {
    display: flex;
  }

  .nav-menu {
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    background: #fff;
    border-bottom: 1px solid var(--border-main);
    box-shadow: 0 20px 34px rgba(44, 28, 70, 0.1);
    padding: 0.75rem 1rem 1.5rem;
    gap: 0.6rem;
    max-height: calc(100vh - var(--header-height) - 1rem);
    overflow-y: auto;
  }

  .nav-menu.show {
    display: flex;
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0.2rem;
  }

  .nav-list .nav-link {
    justify-content: center;
    padding: 0.8rem 1rem;
  }

  .nav-cta {
    margin-top: 0.6rem;
    justify-content: center;
  }

  .hero-inner {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .hero-panel {
    min-height: 330px;
  }

  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
}

@media (max-width: 767.98px) {
  .section {
    padding-block: 3rem;
  }

  .hero {
    padding-block: 2rem 2.5rem;
  }

  .hero-sub {
    font-size: 1.02rem;
  }

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

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

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

  .cta-form-section .support-form {
    margin-top: 2rem;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

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

  .hero-actions .btn {
    width: 100%;
  }
}

@media (max-width: 575.98px) {
  .brand-text {
    font-size: 0.95rem;
  }

  .hero-panel {
    border-radius: 28px;
  }

  .browser-address {
    font-size: 0.7rem;
  }

  .hero-login-card strong {
    font-size: 1.15rem;
  }

  .compare-table-card {
    border-radius: 20px;
  }

  .support-form {
    padding: 1.2rem;
  }
}

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

/* roulang page: article */
:root{
  --wine: #5A2BD9;
  --magenta: #E84FA3;
  --amber: #F5A33C;
  --lime: #C6F432;
  --bg:#F6F4FA;
  --dark:#171125;
  --dark2:#201739;
  --card:#FFFFFF;
  --link:#3F1FA6;
  --text:#1F1A2E;
  --muted:#706A87;
  --line:rgba(44,28,70,.1);
  --radius-lg:32px;
  --radius-md:20px;
  --radius-sm:14px;
  --shadow-sm:0 8px 24px rgba(44,28,70,.08);
  --shadow-md:0 14px 30px rgba(44,28,70,.10);
  --shadow-lg:0 18px 44px rgba(44,28,70,.16);
  --grad:linear-gradient(135deg,#5A2BD9 0%,#E84FA3 100%);
  --gradSoft:linear-gradient(145deg,rgba(90,43,217,.12) 0%,rgba(232,79,163,.1) 100%);
}

*{box-sizing:border-box}
html,body{scroll-padding-top:92px}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC","Helvetica Neue",Arial,sans-serif;
  font-size:1rem;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--link);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--magenta)}
img{max-width:100%;height:auto;display:block}
button{font-family:inherit}
.wrap{width:min(1200px,100% - 48px);margin-inline:auto}
@media(max-width:560px){.wrap{width:calc(100% - 28px)}}

h1,h2,h3,h4,h5{color:var(--text);font-weight:800;line-height:1.3;margin:0}
p{margin:0}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.55rem;
  min-height:46px;padding:.68rem 1.45rem;border-radius:16px;
  font-weight:600;font-size:.95rem;line-height:1.3;border:1px solid transparent;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease;
}
.btn-sm{min-height:40px;padding:.5rem 1.15rem;border-radius:13px}
.btn-lg{min-height:54px;padding:.9rem 1.8rem;font-size:1rem}
.btn-brand{background:var(--grad);color:#fff;border-color:transparent;box-shadow:0 8px 20px rgba(90,43,217,.24)}
.btn-brand:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);color:#fff}
.btn-brand:active{transform:translateY(0) scale(.99)}
.btn-outline{background:#fff;color:#5A2BD9;border-color:rgba(90,43,217,.32);box-shadow:0 4px 12px rgba(44,28,70,.06)}
.btn-outline:hover{background:#F0EBFC;color:#3F1FA6;border-color:#5A2BD9;transform:translateY(-2px)}
.btn-amber{background:var(--amber);color:#ffffff;border-color:transparent;box-shadow:0 8px 20px rgba(245,163,60,.25)}
.btn-amber:hover{background:#EF8E17;color:#fff;transform:translateY(-2px)}
.btn-white{background:#fff;color:var(--wine);border-color:transparent}
.btn-white:hover{background:#F0EBFC;color:#3F1FA6;transform:translateY(-2px)}
.btn:focus-visible,.nav-link:focus-visible,a:focus-visible{outline:3px solid rgba(90,43,217,.38);outline-offset:3px;border-radius:10px}

.site-header{position:sticky;top:0;z-index:1030;background:rgba(255,255,255,.86);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;min-height:68px;gap:18px}
.brand-logo{display:inline-flex;align-items:center;gap:.65rem;min-height:48px;color:#1F1A2E;font-weight:800}
.brand-logo:hover{color:var(--wine)}
.brand-text{font-size:1.18rem;letter-spacing:.01em;white-space:nowrap}
.brand-mark{flex:none;display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:12px;background:#fff;box-shadow:var(--shadow-sm)}
.nav-menu{display:flex;align-items:center;gap:1rem}
.nav-list{list-style:none;display:flex;align-items:center;gap:2px;margin:0;padding:0}
.nav-list li{margin:0;padding:0}
.nav-link{display:inline-flex;align-items:center;min-height:42px;padding:.5rem .95rem;border-radius:24px;font-weight:600;font-size:.95rem;color:#514A63}
.nav-link:hover{background:#F1EDFA;color:var(--wine)} 
.nav-link.active{background:linear-gradient(135deg,rgba(90,43,217,.13),rgba(232,79,163,.13));color:var(--wine)}
.nav-cta{margin-left:.35rem}
.nav-toggler{display:none;border:0;background:transparent;width:44px;height:44px;border-radius:12px;flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer}
.nav-toggler .bar{display:block;width:24px;height:2px;border-radius:2px;background:#2A2140;transition:transform .3s ease,opacity .3s ease}
.menu-open .nav-toggler .bar:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-open .nav-toggler .bar:nth-child(2){opacity:0}
.menu-open .nav-toggler .bar:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.site-footer{background:var(--dark);margin-top:0;color:#DFD9EE}
.site-footer .brand-text,.site-footer h4{color:#fff}
.site-footer a{color:#BEB4D4;transition:color .2s ease,padding-left .2s ease}
.site-footer a:hover{color:#fff;padding-left:2px}
.footer-top{display:grid;grid-template-columns:1.6fr .8fr .8fr .9fr;gap:2rem;padding-top:3.5rem;padding-bottom:2rem}
.footer-brand-col p{margin-top:1rem;color:#9E93B7;font-size:.92rem;line-height:1.85;max-width:34rem}
.footer-col h4{font-size:1rem;margin-bottom:1rem;letter-spacing:.02em}
.footer-links{list-style:none;margin:0;padding:0;display:grid;gap:.55rem}
.footer-links a{font-size:.92rem}
.footer-note{border-top:1px solid rgba(255,255,255,.09);padding:1.4rem 0}
.footer-bottom-inner{display:flex;flex-wrap:wrap;justify-content:space-between;gap:.6rem;color:#90859F;font-size:.85rem}
.footer-bottom-inner p{margin:0}

.article-hero{
  position:relative;
  overflow:hidden;
  color:#fff;
  padding:2.8rem 0 3.8rem;
  isolation:isolate;
  background-color:#150F25;
  background-image:linear-gradient(120deg,rgba(23,17,37,.9) 0%,rgba(90,43,217,.78) 55%,rgba(232,79,163,.52) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
}
.article-hero::after{content:"";position:absolute;inset:auto -10% -80% 20%;width:520px;height:260px;background:rgba(232,79,163,.22);filter:blur(90px);z-index:-1;pointer-events:none;border-radius:50%}
.article-hero-content{max-width:860px}
.article-hero .hero-kicker{display:inline-flex;align-items:center;gap:.5rem;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.16);color:#fff;padding:.3rem 1rem;border-radius:999px;font-size:.87rem;font-weight:600;margin-bottom:1.3rem;backdrop-filter:blur(6px)}
.article-hero h1{color:#fff;font-size:clamp(1.9rem,3vw + .7rem,3rem);line-height:1.2;margin:0 0 1rem;text-wrap:balance}
.hero-desc{max-width:720px;color:rgba(255,255,255,.82);font-size:1rem;line-height:1.8}
.breadcrumb-sep{opacity:.45;margin:.25rem .7rem;display:inline-flex}
.breadcrumb-md{margin-top:2rem;display:flex;flex-wrap:wrap;align-items:center;font-size:.9rem;color:rgba(255,255,255,.8);gap:0}
.breadcrumb-md a{color:rgba(255,255,255,.9)}
.breadcrumb-md a:hover{color:#fff}

.article-section{padding:3.2rem 0 4.6rem}
.article-grid{display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:2.2rem;align-items:start}

.article-body-card{background:#fff;border-radius:28px;box-shadow:var(--shadow-sm);padding:2rem clamp(1.2rem,3vw,2.6rem) 2.4rem;border:1px solid rgba(44,28,70,.06)}
.article-topbar{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.7rem;border-bottom:1px solid var(--line);padding-bottom:1.1rem;margin-bottom:1.25rem}
.article-topbar .meta{display:flex;flex-wrap:wrap;gap:.85rem;color:var(--muted);font-size:.9rem}
.meta-item{display:inline-flex;align-items:center;gap:.42rem;color:var(--muted)}
.meta-item a{color:var(--wine);font-weight:600}
.chip-label{display:inline-flex;align-items:center;background:var(--gradSoft);color:var(--wine);border:1px solid rgba(90,43,217,.12);font-weight:600;font-size:.82rem;padding:.2rem .8rem;border-radius:999px;min-height:28px}

.cms-content{color:#262038;font-size:1.03rem;line-height:1.9}
.cms-content>p{margin:0 0 1.5em}
.cms-content h2{margin:2.2rem 0 1rem;padding-top:.4rem;font-size:1.5rem;color:#1F1A2E}
.cms-content h3{margin:1.8rem 0 .8rem;font-size:1.18rem;color:#1F1A2E}
.cms-content h4{margin:1.5rem 0 .6rem;font-size:1.05rem;color:var(--wine)}
.cms-content img{border-radius:18px;margin:1.5rem 0;box-shadow:var(--shadow-sm)}
.cms-content ul,.cms-content ol{margin:0 0 1.6rem 1.1rem;padding-left:1.1rem;display:grid;gap:.45rem}
.cms-content li::marker{color:var(--wine)}
.cms-content a{font-weight:600;text-decoration:underline;text-decoration-color:rgba(232,79,163,.35);text-underline-offset:3px}
.cms-content strong{color:#170D2B;font-weight:700}
.cms-content blockquote{
  border-left:4px solid var(--magenta);background:#FAF5FC;
  margin:1.6rem 0;padding:1rem 1.4rem;border-radius:14px;color:#584B6B;
}
.cms-content pre{
  background:#150F25;color:#EFE7FF;border-radius:18px;
  padding:1.2rem 1.4rem;overflow-x:auto;font-size:.92rem;line-height:1.7;margin:1.4rem 0;
}
.cms-content code{background:rgba(90,43,217,.08);color:#4A1F9A;border-radius:6px;padding:.15rem .4rem;font-size:.92em}
.cms-content pre code{background:transparent;color:inherit;padding:0}
.cms-content table{width:100%;border-collapse:collapse;margin:1.6rem 0;display:table;min-width:0}
.cms-content th{background:var(--dark);color:#fff;font-weight:600;text-align:left;padding:.7rem 1rem;font-size:.92rem}
.cms-content td{border-bottom:1px solid var(--line);padding:.7rem 1rem;font-size:.94rem}
.cms-content tr:nth-child(even) td{background:#FAF8FE}
.cms-content hr{border:0;border-top:1px solid var(--line);margin:2rem 0;opacity:.7}

.article-bottom-box{margin-top:2.4rem;padding-top:1.5rem;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:.8rem;align-items:center}
.article-bottom-box a{min-height:42px;font-size:.92rem}

.empty-note-grid{display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:2.2rem;align-items:start}
.empty-card{background:#fff;border-radius:28px;padding:4rem 2rem;text-align:center;box-shadow:var(--shadow-sm);border:1px solid rgba(44,28,70,.06)}
.empty-card h2{font-size:1.55rem;margin:1rem 0 .5rem}
.empty-card p{color:var(--muted);margin-bottom:1.8rem}
.empty-card .btn{margin:.25rem .3rem}

.article-sidebar{display:grid;gap:1.7rem}
.side-card{background:#fff;border-radius:24px;border:1px solid rgba(44,28,70,.07);box-shadow:var(--shadow-sm);padding:1.4rem 1.5rem}
.side-card h2{font-size:1.15rem;font-weight:800;margin-bottom:.6rem;letter-spacing:.01em}
.side-card.intro h3,.side-card h3{font-size:1.04rem;margin:.35rem 0 .8rem}
.side-note{color:var(--muted);font-size:.9rem;margin-bottom:.8rem;line-height:1.7}
.side-list{list-style:none;padding:0;margin:.9rem 0 0;display:grid;gap:.65rem}
.side-list li a{display:flex;justify-content:space-between;gap:.6rem;font-size:.93rem;color:#2A213F;padding:.55rem .5rem;border-radius:12px;transition:background .2s ease,color .2s ease}
.side-list li a:hover{background:#F4F0FC;color:var(--wine)}
.side-list .go-icon{color:#B9AFCF;font-weight:700}
.guide-card{border-radius:20px;overflow:hidden;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-sm)}
.guide-card .gc-img{height:142px;object-fit:cover;width:100%;background:#F1F3F8}
.guide-card .gc-body{padding:1.1rem 1.25rem 1.35rem}
.guide-card h3{font-size:1.03rem;font-weight:800;line-height:1.4;margin-bottom:.45rem}
.guide-card p{color:var(--muted);font-size:.88rem;line-height:1.7;margin-bottom:1rem}
.mini-link{font-size:.9rem;color:var(--wine);font-weight:700;display:inline-flex;align-items:center;gap:.3rem}
.mini-link:hover{color:var(--magenta)}

.support-side-card{background:var(--dark);color:#fff;border:0;position:relative;overflow:hidden}
.support-side-card::before{content:"";position:absolute;top:-70px;right:-80px;width:180px;height:180px;background:rgba(232,79,163,.35);filter:blur(26px);border-radius:50%;pointer-events:none}
.support-side-card h3{color:#fff;margin:0 0 .5rem}
.support-side-card p{color:#D4CCE6;font-size:.9rem;margin:0 0 1rem}
.support-side-card .btn{width:100%}

.icon-box{flex:none;display:inline-flex;width:42px;height:42px;border-radius:13px;background:var(--gradSoft);align-items:center;justify-content:center;color:var(--wine);font-size:1.1rem;font-weight:800}

.article-bottom-cta{margin-top:2.6rem;border-radius:28px;padding:2.6rem;display:flex;justify-content:space-between;gap:2rem;align-items:center;flex-wrap:wrap;background:linear-gradient(120deg,#150F25,#3E1FA6 58%,#E84FA3 140%);position:relative;overflow:hidden}
.article-bottom-cta::after{content:"";position:absolute;right:-10%;top:-100px;background:rgba(232,79,163,.35);width:280px;height:240px;filter:blur(70px);border-radius:50%}
.article-bottom-cta h2{color:#fff;font-size:1.5rem;margin-bottom:.45rem}
.article-bottom-cta p{color:rgba(255,255,255,.8);max-width:620px;font-size:.95rem}
.article-bottom-cta .btn{position:relative;z-index:2;flex:none}

.related-row{display:grid;grid-template-columns:1fr 1fr;gap:1.1rem;margin-top:.95rem}
.related-item{display:flex;gap:.85rem;align-items:start;border:1px solid var(--line);border-radius:20px;padding:.75rem .95rem;background:#fff;box-shadow:0 4px 12px rgba(44,28,70,.05);transition:transform .2s ease,box-shadow .2s ease}
.related-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
.related-thumb{width:92px;height:72px;flex:none;object-fit:cover;border-radius:12px;background:#EDE8F8}
.related-item h4{font-size:.95rem;margin-bottom:.2rem;font-weight:800;line-height:1.45}
.related-item .rel-tag{font-size:.78rem;color:var(--muted)}
.related-item a{color:inherit}
.related-item a:hover h4{color:var(--wine)}

@media (max-width: 992px){
  .nav-toggler{display:flex}
  .nav-menu{
    position:absolute;top:73px;left:0;right:0;align-items:stretch;
    background:rgba(255,255,255,.97);margin:0 12px 14px;padding:1rem;
    border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow-md);
    display:none;
  }
  .nav-menu.is-open{display:grid;gap:1rem}
  .nav-list{flex-direction:column;align-items:flex-start;gap:.45rem}
  .nav-list li{width:100%}
  .nav-link{width:100%;justify-content:flex-start;border-radius:14px}
  .nav-cta{margin:.3rem 0 0;width:100%}
  .nav-cta .btn{width:100%}
  .article-grid,.empty-note-grid{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr 1fr}
  .article-sidebar{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .site-header{position:sticky}
  .wrap{padding:0 14px}
  .article-hero{padding:2.4rem 0 3rem}
  .article-section{padding:2.2rem 0 3.6rem}
  .article-body-card{padding:1.4rem 1rem 1.5rem;border-radius:22px}
  .article-body{font-size:.97rem}
  .article-bottom-cta{padding:1.6rem 1.2rem}
  .related-row{grid-template-columns:1fr}
  .footer-bottom-inner{flex-direction:column;text-align:center}
}
@media (max-width:600px){
  .brand-text{font-size:1.02rem}
  .article-hero h1{font-size:1.85rem}
  .article-topbar{display:block}
  .article-topbar .meta{margin-top:.5rem}
  .footer-top{grid-template-columns:1fr;gap:1.6rem}
  .article-sidebar{grid-template-columns:1fr}
  .empty-card{padding:2.6rem 1rem}
  .btn-lg{width:100%}
}
@media (prefers-reduced-motion: reduce){
  *{scroll-behavior:auto!important;transition:none!important;animation:none!important}
}

/* roulang page: category1 */
:root{
  --viola:#5A2BD9;
  --magenta:#E84FA3;
  --brand-gradient:linear-gradient(115deg,#5A2BD9,#E84FA3);
  --amber:#F5A33C;
  --lime:#C6F432;
  --bg:#F6F4FA;
  --card:#FFFFFF;
  --dark:#171125;
  --dark-2:#150F25;
  --text:#1F1A2E;
  --muted:#706A87;
  --line:rgba(44,28,70,.1);
  --success:#2CB67D;
  --danger:#F45B5B;
  --radius-lg:28px;
  --radius-sm:16px;
  --shadow-1:0 8px 24px rgba(44,28,70,.08);
  --shadow-2:0 16px 40px rgba(44,28,70,.16);
  --sp-lg:clamp(4rem,8vw,6.5rem);
  --sp-sm:3rem;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:92px}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC","Helvetica Neue",Arial,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.8;
  font-size:1rem;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--viola);text-decoration:none}
a:hover{color:var(--magenta)}
img{max-width:100%;border-radius:18px}
button,input,select,textarea{font-family:inherit}
p{margin-top:0}
.wrap{
  max-width:1240px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
.container{max-width:1240px}

/* ===== 导航栏 ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:1020;
  background:rgba(255,255,255,.86);
  backdrop-filter:saturate(1.4);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  min-height:68px;
  position:relative;
}
.brand-logo{
  display:inline-flex;
  align-items:center;
  gap:11px;
  flex-shrink:0;
}
.brand-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:40px;
  height:40px;
  border-radius:14px;
  background:var(--brand-gradient);
  box-shadow:0 8px 18px rgba(90,43,217,.26);
}
.brand-text{
  font-weight:800;
  font-size:1.08rem;
  line-height:1.3;
  color:var(--text);
  letter-spacing:.01em;
}
.brand-logo:hover .brand-text{color:var(--viola)}
.nav-menu{display:flex;align-items:center;gap:24px}
.nav-list{
  display:flex;
  align-items:center;
  gap:6px;
  list-style:none;
  margin:0;
  padding:0;
}
.nav-link{
  display:inline-flex;
  align-items:center;
  padding:9px 14px;
  border-radius:999px;
  font-weight:600;
  color:#3D3651;
  transition:background .2s,color .2s,transform .2s;
}
.nav-link:hover{
  background:#F1EDFA;
  color:var(--viola);
  transform:translateY(-1px);
}
.nav-link.active{
  background:#EDE6FD;
  color:var(--viola);
}
.nav-cta a{
  white-space:nowrap;
}
.nav-toggler{
  display:none;
  width:44px;
  height:44px;
  border:1px solid var(--line);
  border-radius:14px;
  background:var(--card);
  cursor:pointer;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:4px;
}
.nav-toggler .bar{
  display:block;
  width:20px;
  height:2px;
  border-radius:2px;
  background:var(--text);
  transition:transform .25s,opacity .25s;
}
.nav-toggler[aria-expanded="true"] .bar:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggler[aria-expanded="true"] .bar:nth-child(2){opacity:0}
.nav-toggler[aria-expanded="true"] .bar:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ===== 通用按钮 ===== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:48px;
  padding:0 22px;
  border-radius:16px;
  font-weight:700;
  font-size:.95rem;
  border:1px solid transparent;
  transition:background .25s,box-shadow .25s,transform .25s,color .25s,border-color .25s;
}
.btn:focus-visible{
  outline:3px solid rgba(90,43,217,.35);
  box-shadow:0 0 0 5px rgba(232,79,163,.18);
}
.btn-brand{
  background:var(--brand-gradient);
  color:#fff;
  box-shadow:0 10px 24px rgba(90,43,217,.25);
}
.btn-brand:hover{
  color:#fff;
  transform:translateY(-2px);
  box-shadow:0 16px 30px rgba(90,43,217,.32);
}
.btn-brand:active{transform:translateY(0) scale(.99)}
.btn-outline{
  background:transparent;
  color:var(--viola);
  border-color:rgba(90,43,217,.4);
}
.btn-outline:hover{
  background:#F0EAFE;
  color:var(--viola);
  border-color:var(--viola);
  transform:translateY(-2px);
}
.btn-light{
  background:#fff;
  color:var(--viola);
}
.btn-light:hover{
  background:#F3EEFF;
  color:var(--viola);
  transform:translateY(-2px);
  box-shadow:var(--shadow-2);
}
.btn-amber{
  background:var(--amber);
  color:#2B1B00;
}
.btn-amber:hover{
  background:#FFB455;
  color:#2B1B00;
  transform:translateY(-2px);
}
.btn-lg{min-height:56px;padding:0 28px;border-radius:18px}
.btn-small{min-height:42px;padding:0 18px;font-size:.9rem;border-radius:13px}

/* ===== 通用区块标题 ===== */
.section-head{
  margin-bottom:2rem;
}
.section-kicker{
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-size:.78rem;
  font-weight:700;
  letter-spacing:.05em;
  color:var(--viola);
  text-transform:uppercase;
}
.section-kicker i{
  width:10px;
  height:10px;
  border-radius:50%;
  background:var(--brand-gradient);
  display:inline-block;
  box-shadow:0 0 0 5px rgba(90,43,217,.08);
}
.section-title{
  margin:.4rem 0 0;
  font-size:clamp(1.6rem,2.4vw + .8rem,2.4rem);
  font-weight:800;
  line-height:1.3;
  color:var(--text);
}
.section-desc{
  margin:.75rem 0 0;
  color:var(--muted);
  max-width:760px;
}
.section-space{padding-top:var(--sp-lg);padding-bottom:var(--sp-lg)}

/* ===== 分类页首屏 ===== */
.cat-hero{
  color:#fff;
  border-radius:34px;
  background:
    linear-gradient(110deg,rgba(13,9,25,.94) 0%,rgba(23,17,37,.82) 48%,rgba(90,43,217,.55) 100%),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  padding:clamp(2.5rem,5vw,4.6rem);
  margin:clamp(1.2rem,3vw,2.6rem) 0 var(--sp-lg);
  overflow:hidden;
  position:relative;
  box-shadow:var(--shadow-2);
  min-height:440px;
  display:flex;
  align-items:center;
}
.cat-hero::after{
  content:"";
  position:absolute;
  right:-120px;
  top:-120px;
  width:330px;
  height:330px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(232,79,163,.5),rgba(232,79,163,0) 68%);
  pointer-events:none;
}
.cat-hero .row{position:relative;z-index:2}
.cat-hero .badge-line{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.18);
  color:#fff;
  padding:5px 13px;
  border-radius:999px;
  font-size:.82rem;
  font-weight:600;
}
.badge-dot{width:8px;height:8px;border-radius:50%;background:var(--lime);display:inline-block}
.cat-hero h1{
  font-size:clamp(2.1rem,4vw + .8rem,3.2rem);
  font-weight:800;
  line-height:1.18;
  margin:.8rem 0 1rem;
  color:#fff;
  letter-spacing:.01em;
}
.cat-hero .lead{
  color:rgba(255,255,255,.86);
  max-width:620px;
  margin-bottom:2rem;
  font-size:1.05rem;
}
.cat-hero .btn-group-hero{display:flex;gap:12px;flex-wrap:wrap}
.hero-status-panel{
  border-radius:28px;
  padding:1.4rem;
  background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.15);
  backdrop-filter:blur(10px);
}
.status-card-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.status-node{
  background:rgba(17,10,32,.56);
  border-radius:20px;
  padding:1rem 1.1rem;
  color:#fff;
}
.status-node .num{
  font-size:1.5rem;
  font-weight:800;
  line-height:1.1;
  font-variant-numeric:tabular-nums;
  color:var(--lime);
}
.status-node .label{font-size:.8rem;color:rgba(255,255,255,.72);margin-top:4px}
.status-panel-note{
  margin-top:14px;
  padding:12px 14px;
  border-radius:16px;
  background:rgba(255,255,255,.12);
  font-size:.85rem;
  color:rgba(255,255,255,.9);
}

/* ===== 登录前检查步骤 ===== */
.process-wrap{
  background:var(--card);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);
  padding:clamp(1.8rem,4vw,3.2rem);
}
.steps-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:18px;
  margin-top:28px;
}
.step-card{
  border:1px solid var(--line);
  border-radius:22px;
  padding:1.35rem;
  background:var(--bg);
  transition:border-color .25s,box-shadow .25s,transform .25s;
}
.step-card:hover{
  border-color:rgba(90,43,217,.35);
  box-shadow:var(--shadow-1);
  transform:translateY(-3px);
}
.step-icon{
  width:46px;
  height:46px;
  border-radius:15px;
  background:var(--brand-gradient);
  display:flex;
  align-items:center;
  justify-content:center;
  color:#fff;
  padding:10px;
  margin-bottom:1rem;
}
.step-card h3{font-size:1.05rem;font-weight:800;margin:0 0 .4rem}
.step-card p{font-size:.9rem;color:var(--muted);margin:0}
.step-cap{
  display:inline-block;
  font-size:.75rem;
  font-weight:700;
  color:var(--magenta);
  padding:3px 10px;
  background:#FBEBF6;
  border-radius:999px;
  margin-bottom:.6rem;
}

/* ===== 内容主体区 ===== */
.aside-layout{
  margin-top:var(--sp-lg);
  margin-bottom:var(--sp-lg);
}
.feature-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:30px;
  box-shadow:var(--shadow-1);
  overflow:hidden;
  transition:box-shadow .3s,transform .3s;
}
.feature-card:hover{
  box-shadow:var(--shadow-2);
  transform:translateY(-2px);
}
.feature-card .card-media{
  height:206px;
  overflow:hidden;
  background:linear-gradient(135deg,#24153F,#2B1436);
}
.feature-card .card-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .45s ease;
}
.feature-card:hover .card-media img{transform:scale(1.035)}
.feature-card .card-body{padding:1.4rem 1.5rem 1.6rem}
.meta-row{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px 14px;
  color:var(--muted);
  font-size:.82rem;
  margin-bottom:.8rem;
}
.tag{
  display:inline-flex;
  align-items:center;
  background:#F0EDFB;
  color:var(--viola);
  padding:4px 12px;
  border-radius:999px;
  font-size:.75rem;
  font-weight:700;
}
.feature-card h3{
  font-size:1.12rem;
  font-weight:800;
  line-height:1.45;
  margin:0 0 .65rem;
}
.feature-card .text-block{color:var(--muted);font-size:.98rem;margin:0}
.mini-story{
  display:flex;
  gap:18px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:24px;
  padding:1.3rem;
  margin-bottom:1.15rem;
  box-shadow:0 6px 18px rgba(44,28,70,.04);
  transition:border-color .22s,box-shadow .22s,transform .22s;
}
.mini-story:hover{
  border-color:rgba(90,43,217,.3);
  box-shadow:var(--shadow-1);
  transform:translateY(-2px);
}
.mini-story:last-child{margin-bottom:0}
.mini-story .mini-thumb{
  flex:0 0 160px;
  width:160px;
  min-height:110px;
  border-radius:16px;
  overflow:hidden;
  background:#EFE9F7;
  align-self:flex-start;
}
.mini-story .mini-thumb img{width:100%;height:100%;object-fit:cover;display:block}
.mini-story .meta-row{margin-bottom:.3rem}
.mini-story h3{font-size:1.02rem;font-weight:800;margin:0 0 .4rem;line-height:1.4}
.mini-story p{font-size:.9rem;color:var(--muted);margin:0}

/* ===== 右侧模块 ===== */
.aside-sticky{position:sticky;top:92px}
.help-module{
  background:#fff;
  border:1px solid var(--line);
  border-radius:28px;
  box-shadow:var(--shadow-1);
  padding:1.5rem;
  margin-bottom:1.4rem;
}
.module-title{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:1.05rem;
  font-weight:800;
  margin:0 0 1rem;
}
.module-title svg{flex-shrink:0}
.browser-wrap{
  background:linear-gradient(135deg,#F4F0FF,#FFF4FC);
  border-radius:20px;
  padding:1rem;
}
.browser-stat{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:.62rem 0;
  border-bottom:1px solid rgba(44,28,70,.06);
}
.browser-stat:last-child{border-bottom:0}
.browser-stat .b-name{font-weight:600;font-size:.92rem}
.browser-stat .b-num{font-weight:800;color:var(--viola);font-size:1.05rem}
.shortcut-grid{
  display:grid;
  gap:.7rem;
}
.shortcut-link{
  display:flex;
  align-items:center;
  justify-content:space-between;
  background:var(--bg);
  padding:.78rem 1rem;
  border-radius:16px;
  color:var(--text);
  font-weight:700;
  font-size:.9rem;
  border:1px solid rgba(44,28,70,.06);
  transition:background .2s,color .2s,transform .2s;
}
.shortcut-link:hover{
  background:#EFE9FC;
  color:var(--viola);
  transform:translateX(4px);
}
.shortcut-link .short-arrow{transition:transform .2s}
.shortcut-link:hover .short-arrow{transform:translateX(4px)}
.trust-point{
  display:flex;
  gap:10px;
  align-items:flex-start;
  font-size:.84rem;
  color:var(--muted);
  margin-top:.6rem;
}
.trust-point svg{flex-shrink:0;margin-top:3px;color:var(--success)}

/* ===== FAQ ===== */
.ai-faq{
  border-radius:16px;
  overflow:hidden;
}
.ai-faq .accordion-item{
  border:0;
  border-bottom:1px solid var(--line);
  background:transparent;
}
.ai-faq .accordion-item:last-child{border-bottom:0}
.ai-faq .accordion-button{
  background:transparent;
  box-shadow:none;
  border-radius:0;
  color:var(--text);
  font-weight:700;
  font-size:.93rem;
  padding:1rem 0;
  transition:color .2s;
}
.ai-faq .accordion-button:not(.collapsed){
  color:var(--viola);
  background:transparent;
}
.ai-faq .accordion-button:focus{
  box-shadow:none;
  outline:none;
  border:0;
}
.ai-faq .accordion-body{
  padding:0 .6rem 1.1rem;
  font-size:.9rem;
  color:var(--muted);
}

/* ===== 横向对比表 ===== */
.compare-wrap{
  background:var(--dark);
  color:#fff;
  border-radius:34px;
  padding:clamp(1.8rem,4vw,3.4rem);
  position:relative;
  overflow:hidden;
}
.compare-wrap::before{
  content:"";
  position:absolute;
  top:-90px;
  left:30%;
  width:370px;
  height:370px;
  background:radial-gradient(circle,rgba(232,79,163,.32),transparent 66%);
  pointer-events:none;
}
.compare-table{
  width:100%;
  border-collapse:separate;
  border-spacing:0;
  color:#fff;
  font-size:.9rem;
}
.compare-header{
  background:rgba(255,255,255,.07);
  border-radius:18px;
}
.compare-table th{
  padding:1rem 1.1rem;
  font-weight:700;
  min-width:170px;
  color:#fff;
  border:none;
}
.compare-table td{
  padding:.95rem 1.1rem;
  border-top:1px solid rgba(255,255,255,.1);
  color:rgba(255,255,255,.86);
  vertical-align:top;
}
.compare-table .hot-tag{
  display:inline-block;
  background:var(--brand-gradient);
  color:#fff;
  font-size:.75rem;
  font-weight:700;
  padding:2px 10px;
  border-radius:999px;
  margin-bottom:.4rem;
}
.compare-note{
  margin-top:1.3rem;
  color:rgba(255,255,255,.7);
  font-size:.85rem;
}

/* ===== 分类引导横幅 ===== */
.guide-banner{
  margin:var(--sp-lg) 0;
  background:linear-gradient(120deg,#FFFFFF,#F3EDFF);
  border:1px solid rgba(90,43,217,.12);
  border-radius:32px;
  padding:clamp(2rem,4vw,3.4rem);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:2rem;
  flex-wrap:wrap;
}
.guide-banner h2{font-size:clamp(1.35rem,2vw,1.9rem);font-weight:800;margin:0 0 .7rem}
.guide-banner p{color:var(--muted);max-width:760px;margin-bottom:1rem}
.guide-banner .guide-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ===== 表单区 ===== */
.form-block{
  background:var(--dark);
  border-radius:36px;
  color:#fff;
  padding:clamp(1.8rem,4vw,3.8rem);
  position:relative;
  overflow:hidden;
}
.form-block::after{
  content:"";
  position:absolute;
  right:-100px;
  bottom:-100px;
  width:300px;
  height:300px;
  background:radial-gradient(circle,rgba(90,43,217,.4),transparent 66%);
  pointer-events:none;
}
.form-block .wrap-relative{position:relative;z-index:1}
.form-intro h2{
  font-size:clamp(1.7rem,2.6vw + .6rem,2.6rem);
  font-weight:800;
  line-height:1.35;
  color:#fff;
}
.form-intro .lead{color:rgba(255,255,255,.82)}
.form-list{
  list-style:none;
  padding:0;
  margin:1.4rem 0 0;
}
.form-list li{
  padding-left:30px;
  position:relative;
  color:rgba(255,255,255,.88);
  font-size:.94rem;
  margin-bottom:.8rem;
}
.form-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:.35rem;
  width:16px;
  height:16px;
  border-radius:50%;
  background:linear-gradient(135deg,var(--lime),#A9E23C);
}
.form-panel{
  background:#fff;
  border-radius:30px;
  color:var(--text);
  padding:2rem;
  box-shadow:0 20px 50px rgba(0,0,0,.3);
}
.form-panel .section-kicker{color:var(--viola)}
.form-label{font-weight:700;font-size:.92rem;margin-bottom:.38rem}
.form-control{
  border:1px solid rgba(44,28,70,.14);
  border-radius:14px;
  background:#FBF9FD;
  min-height:48px;
  padding:.65rem 1rem;
  transition:border-color .2s,box-shadow .2s;
}
.form-control:focus{
  border-color:var(--viola);
  box-shadow:0 0 0 5px rgba(90,43,217,.1);
  background:#fff;
}
textarea.form-control{min-height:110px;resize:vertical}
.form-note{font-size:.8rem;color:var(--muted);margin:.6rem 0 0}
#formFeedback{
  font-size:.9rem;
  font-weight:700;
  margin-top:1rem;
}
.form-success{
  background:#F0FAF6;
  border:1px solid rgba(44,182,125,.35);
  border-radius:18px;
  color:#18774D;
  padding:1rem;
  font-weight:700;
  text-align:center;
}

/* ===== 页脚 ===== */
.site-footer{
  background:#140E22;
  color:#D9D3EE;
  margin-top:0;
  padding-top:70px;
}
.footer-top{
  display:grid;
  grid-template-columns:1.7fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:38px;
}
.footer-top .brand-text{color:#fff}
.footer-top p{color:#A9A1BE;font-size:.9rem;margin-top:1rem}
.site-footer h4{
  color:#fff;
  font-size:1rem;
  font-weight:800;
  margin-bottom:1rem;
}
.footer-links{
  list-style:none;
  padding:0;
  margin:0;
}
.footer-links li{margin-bottom:.6rem}
.footer-links a{
  color:#B9B1CE;
  font-size:.9rem;
  background:none;
  padding:0;
  transition:color .2s,padding-left .2s;
}
.footer-links a:hover{color:var(--amber);padding-left:5px}
.footer-note{
  background:#0D0A18;
  border-top:1px solid rgba(255,255,255,.08);
}
.footer-bottom-inner{
  display:flex;
  gap:10px;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  padding-top:16px;
  padding-bottom:16px;
  color:#8D83A7;
  font-size:.83rem;
}
.footer-bottom-inner p{margin:0}

/* ===== 响应式 ===== */
@media (max-width:1200px){
  .footer-top{grid-template-columns:1.3fr 1fr 1fr}
}
@media (max-width:992px){
  .nav-toggler{display:inline-flex}
  .nav-menu{
    position:absolute;
    top:calc(100% + 10px);
    left:24px;
    right:24px;
    z-index:1050;
    background:#fff;
    border-radius:22px;
    box-shadow:var(--shadow-2);
    border:1px solid var(--line);
    flex-direction:column;
    align-items:stretch;
    padding:1rem;
    display:flex;
    opacity:0;
    visibility:hidden;
    transform:translateY(-8px);
    pointer-events:none;
    transition:opacity .25s,transform .25s,visibility .25s;
  }
  .nav-menu.open{
    opacity:1;
    visibility:visible;
    transform:translateY(0);
    pointer-events:auto;
  }
  .nav-list{flex-direction:column;align-items:stretch;gap:2px;width:100%}
  .nav-list a{display:flex;margin:0;border-radius:14px;padding:12px 14px}
  .nav-cta{margin-top:.8rem;width:100%}
  .nav-cta .btn{width:100%}
  .brand-logo .brand-text{font-size:.92rem}
  .steps-grid{grid-template-columns:repeat(2,1fr)}
  .aside-sticky{position:static}
  .footer-top{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .wrap{padding-left:18px;padding-right:18px}
  .cat-hero{padding:1.8rem 1.3rem;border-radius:22px;min-height:initial}
  .hero-status-panel{margin-top:1.5rem}
  .status-card-grid{grid-template-columns:1fr 1fr}
  .steps-grid{grid-template-columns:1fr}
  .mini-story{
    flex-direction:column;
    padding:1.1rem;
  }
  .mini-story .mini-thumb{
    flex:0 0 auto;
    width:100%;
    height:190px;
  }
  .feature-card .card-media{height:200px}
  .compare-wrap{padding:1.4rem 1.2rem;overflow-x:auto}
  .compare-table{min-width:760px}
  .guide-banner,.form-block{padding:1.6rem}
  .form-panel{padding:1.4rem}
  .footer-top{grid-template-columns:1fr;gap:28px}
  .footer-bottom-inner{flex-direction:column;justify-content:center;text-align:center}
}
@media (max-width:520px){
  body{font-size:.95rem}
  .brand-text{max-width:8.2rem}
  .nav-menu{left:12px;right:12px}
  .cat-hero .btn-group-hero .btn{width:100%}
  .btn-group-hero{flex-direction:column;width:100%}
  .guide-actions .btn{width:100%}
  .avoid-overflow{width:100%}
}

/* ===== 可访问性与动效 ===== */
a:focus-visible,
button:focus-visible{
  outline:3px solid rgba(90,43,217,.35);
  outline-offset:2px;
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{transition:none !important;animation:none !important;transform:none !important}
}

/* roulang page: category2 */
:root {
      --g1: #5A2BD9;
      --g2: #E84FA3;
      --accent: #F5A33C;
      --lime: #C6F432;
      --success: #2CB67D;
      --danger: #F45B5B;
      --warning: #FFB800;
      --bg-soft: #F6F4FA;
      --card: #FFFFFF;
      --ink: #1F1A2E;
      --ink-soft: #504A67;
      --muted: #706A87;
      --line: rgba(44, 28, 70, .1);
      --deep: #171125;
      --deep-2: #150F25;
      --radius-xl: 32px;
      --radius-lg: 24px;
      --radius-md: 16px;
      --shadow: 0 8px 24px rgba(44, 28, 70, .08);
      --shadow-hover: 0 16px 40px rgba(44, 28, 70, .16);
      --space: clamp(4rem, 8vw, 6.5rem);
      --nav-h: 64px;
    }

    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: 90px; }
    body {
      margin: 0;
      font-family: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
      background: var(--bg-soft);
      color: var(--ink);
      font-size: 1.0625rem;
      line-height: 1.85;
      -webkit-font-smoothing: antialiased;
    }
    a { color: var(--g1); text-decoration: none; }
    a:hover { color: #4220a5; }
    img { max-width: 100%; display: block; }
    h1, h2, h3, h4 {
      font-weight: 700;
      color: var(--ink);
      line-height: 1.25;
    }
    h1 { font-size: clamp(2.1rem, 4vw + 1rem, 3.4rem); font-weight: 800; letter-spacing: .01em; }
    h2 { font-size: clamp(1.6rem, 2.4vw + .8rem, 2.4rem); }
    h3 { font-size: 1.25rem; }
    p { margin: 0 0 1.25rem; }
    ul, ol { margin: 0 0 1.25rem; padding-left: 1.25rem; }

    .wrap {
      width: min(1280px, 100% - 48px);
      margin-inline: auto;
    }
    @media (max-width: 768px) {
      .wrap { width: min(100% - 32px, 1280px); }
      body { font-size: 1rem; }
    }

    /* Header / Nav */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1040;
      background: rgba(255, 255, 255, .86);
      -webkit-backdrop-filter: blur(12px);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(44, 28, 70, .06);
    }
    .header-inner {
      display: flex;
      align-items: center;
      gap: 24px;
      min-height: var(--nav-h);
      padding-top: .45rem;
      padding-bottom: .45rem;
    }
    .brand-logo {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      color: var(--ink);
      white-space: nowrap;
    }
    .brand-logo:hover { color: var(--ink); }
    .brand-mark {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 36px;
      height: 36px;
      border-radius: 12px;
      background: rgba(90, 43, 217, .08);
    }
    .brand-text {
      font-weight: 800;
      font-size: 1.04rem;
      letter-spacing: .03em;
      color: var(--ink);
      line-height: 1.3;
      max-width: 16em;
    }
    .nav-menu {
      margin-left: auto;
      display: flex;
      align-items: center;
      gap: 20px;
    }
    .nav-list {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 6px;
      margin: 0;
      padding: 0;
    }
    .nav-link {
      display: inline-flex;
      align-items: center;
      min-height: 40px;
      padding: .35rem 1.05rem;
      border-radius: 999px;
      color: var(--ink-soft);
      font-weight: 600;
      font-size: .95rem;
      transition: background .2s, color .2s, box-shadow .2s;
    }
    .nav-link:hover {
      background: rgba(90, 43, 217, .08);
      color: var(--g1);
    }
    .nav-link.active {
      background: rgba(90, 43, 217, .1);
      color: var(--g1);
      font-weight: 700;
    }
    .nav-cta { display: flex; align-items: center; }
    .nav-toggler {
      display: none;
      margin-left: auto;
      width: 42px;
      height: 42px;
      border: 0;
      border-radius: 14px;
      background: rgba(90, 43, 217, .07);
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 5px;
      cursor: pointer;
      transition: background .2s;
    }
    .nav-toggler .bar {
      display: block;
      width: 21px;
      height: 2px;
      border-radius: 99px;
      background: var(--g1);
      transition: transform .2s, opacity .2s;
    }
    @media (max-width: 991.98px) {
      .nav-toggler {
        display: inline-flex;
      }
      .nav-toggler.open .bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
      .nav-toggler.open .bar:nth-child(2) { opacity: 0; }
      .nav-toggler.open .bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
      .nav-menu {
        position: fixed;
        top: 0;
        right: 0;
        left: 0;
        background: #fff;
        border-bottom: 1px solid rgba(44, 28, 70, .08);
        box-shadow: 0 24px 48px rgba(23, 17, 37, .12);
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
        padding: 80px 24px 26px;
        max-height: 0;
        overflow: hidden;
        opacity: 0;
        pointer-events: none;
        transition: max-height .28s ease, opacity .2s ease;
        margin-left: 0;
      }
      .nav-menu.open {
        max-height: calc(100vh - 70px);
        opacity: 1;
        pointer-events: auto;
      }
      .nav-list {
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
        width: 100%;
      }
      .nav-link {
        width: 100%;
        min-height: 44px;
        justify-content: flex-start;
        border-radius: 14px;
      }
      .nav-cta { width: 100%; }
      .nav-cta a { width: 100%; justify-content: center; }
      .nav-toggler {
        position: relative;
        z-index: 1050;
      }
    }

    /* Buttons */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: .5rem;
      min-height: 48px;
      padding: .62rem 1.5rem;
      border: 1px solid transparent;
      border-radius: var(--radius-md);
      font-weight: 700;
      font-size: .98rem;
      line-height: 1.4;
      text-decoration: none;
      transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
    }
    .btn-brand {
      background: linear-gradient(135deg, var(--g1), var(--g2));
      color: #fff !important;
      box-shadow: 0 10px 24px rgba(90, 43, 217, .26);
    }
    .btn-brand:hover {
      color: #fff !important;
      transform: translateY(-2px);
      box-shadow: 0 14px 34px rgba(90, 43, 217, .34);
    }
    .btn-brand:active { transform: translateY(0); }
    .btn-line {
      background: #fff;
      border-color: rgba(90, 43, 217, .3);
      color: var(--g1);
    }
    .btn-line:hover {
      background: rgba(90, 43, 217, .06);
      border-color: var(--g1);
      color: var(--g1);
    }
    .btn-amber {
      background: var(--accent);
      color: #291b0d !important;
      box-shadow: 0 10px 22px rgba(245, 163, 60, .26);
    }
    .btn-amber:hover {
      color: #291b0d !important;
      transform: translateY(-2px);
    }
    .btn-light {
      background: #fff;
      color: var(--g1);
      border-color: rgba(255,255,255,.4);
    }
    .btn-light:hover { color: var(--g1); transform: translateY(-2px); box-shadow: 0 12px 24px rgba(0,0,0,.12); }
    .btn-small { min-height: 40px; padding: .4rem 1.1rem; font-size: .93rem; border-radius: 14px; }
    .btn:focus-visible {
      outline: 2px solid var(--g1);
      outline-offset: 3px;
    }

    /* Tag / Label */
    .tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: .2rem .72rem;
      border-radius: 999px;
      background: rgba(90, 43, 217, .08);
      color: var(--g1);
      font-size: .825rem;
      font-weight: 600;
    }
    .tag-amber { background: rgba(245, 163, 60, .13); color: #a2620e; }
    .tag-lime { background: rgba(198, 244, 50, .2); color: #4d6f0a; }
    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 9px;
      color: var(--g1);
      font-weight: 800;
      font-size: .82rem;
      letter-spacing: .12em;
      text-transform: uppercase;
      margin-bottom: 1rem;
    }
    .eyebrow::before {
      content: "";
      display: inline-flex;
      width: 22px;
      height: 6px;
      border-radius: 99px;
      background: linear-gradient(90deg, var(--g1), var(--g2));
    }
    .eyebrow.light { color: #faf8ff; }
    .eyebrow.light::before { background: var(--lime); }

    /* Sections */
    .section { padding: clamp(4rem, 7vw, 6rem) 0; }
    .section-head {
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
      gap: 20px;
      margin-bottom: 2rem;
    }
    .section-head p { margin: .7rem 0 0; color: var(--muted); max-width: 700px; }
    .section-title { margin: 0; }

    /* Page Hero */
    .cat-hero {
      position: relative;
      background:
        linear-gradient(105deg, rgba(21, 15, 37, .96) 0%, rgba(43, 17, 77, .88) 46%, rgba(90, 43, 217, .72) 100%),
        url("/assets/images/backpic/back-2.webp") center / cover no-repeat;
      color: #fff;
      padding: clamp(4rem, 10vw, 7rem) 0;
    }
    .cat-hero-inner {
      position: relative;
      z-index: 2;
      display: grid;
      grid-template-columns: 1.1fr .9fr;
      align-items: center;
      gap: 48px;
    }
    .cat-hero-copy h1 {
      color: #fff;
      margin: .2rem 0 1.25rem;
    }
    .cat-hero-copy p {
      color: rgba(255,255,255,.82);
      font-size: 1.08rem;
      max-width: 650px;
    }
    .hero-meta {
      list-style: none;
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      padding: 12px 0 0;
      margin: 0;
    }
    .hero-meta li {
      border: 1px solid rgba(255,255,255,.2);
      background: rgba(255,255,255,.08);
      color: #fbf9ff;
      border-radius: 999px;
      padding: .25rem .9rem;
      font-size: .85rem;
    }
    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      margin: 26px 0 8px;
    }
    .cat-hero-media {
      position: relative;
      min-height: 320px;
      border-radius: var(--radius-xl);
      overflow: hidden;
      box-shadow: 0 26px 70px rgba(0, 0, 0, .3);
      border: 1px solid rgba(255, 255, 255, .18);
    }
    .cat-hero-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      position: absolute;
      inset: 0;
    }
    .hero-media-note {
      position: absolute;
      left: 18px;
      right: 18px;
      bottom: 18px;
      color: #fff;
      background: rgba(23, 17, 37, .66);
      border: 1px solid rgba(255,255,255,.16);
      backdrop-filter: blur(8px);
      -webkit-backdrop-filter: blur(8px);
      padding: 14px 18px;
      border-radius: 20px;
      font-size: .9rem;
    }
    .note-title {
      font-weight: 700;
      display: block;
      margin-bottom: .2rem;
    }
    @media (max-width: 991.98px) {
      .cat-hero-inner { grid-template-columns: 1fr; gap: 28px; }
      .cat-hero-media { min-height: 240px; }
    }

    .c-main {
      padding-top: clamp(3rem, 6vw, 4.5rem);
      padding-bottom: 2rem;
    }
    .prep-grid {
      display: grid;
      gap: 32px;
      align-items: stretch;
    }
    @media (min-width: 992px) {
      .prep-grid { grid-template-columns: .82fr 1.18fr; }
    }
    .prep-copy, .prep-card, .card-panel {
      background: #fff;
      border: 1px solid rgba(44, 28, 70, .08);
      border-radius: var(--radius-xl);
      padding: clamp(1.5rem, 3vw, 2.2rem);
      box-shadow: var(--shadow);
      height: 100%;
    }
    .check-list {
      list-style: none;
      display: grid;
      gap: 24px;
      margin: 0;
      padding: 0;
    }
    .check-list li {
      display: grid;
      grid-template-columns: 38px 1fr;
      gap: 14px;
      align-items: flex-start;
    }
    .check-num {
      width: 38px;
      height: 38px;
      border-radius: 14px;
      font-weight: 800;
      background: rgba(90, 43, 217, .1);
      color: var(--g1);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1rem;
    }
    .check-list strong { display: block; margin-bottom: .1rem; }
    .check-list span { color: var(--muted); font-size: .96rem; line-height: 1.7; }

    .grid-split {
      display: grid;
      gap: 28px;
    }
    @media (min-width: 992px) {
      .grid-split { grid-template-columns: 1.35fr .8fr; align-items: start; }
      .grid-split.reversed { grid-template-columns: .8fr 1.35fr; }
    }

    .step-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 18px;
      margin-top: 1.6rem;
    }
    @media (min-width: 992px) {
      .step-grid { grid-template-columns: repeat(4, 1fr); }
    }
    .step-item {
      background: #fff;
      border: 1px solid rgba(44, 28, 70, .08);
      border-radius: 22px;
      padding: 1.5rem 1.4rem;
      position: relative;
      box-shadow: 0 6px 18px rgba(44, 28, 70, .05);
      transition: transform .25s ease, box-shadow .25s ease;
      overflow: hidden;
    }
    .step-item::before {
      content: "";
      display: block;
      width: 100%;
      height: 3px;
      border-radius: 99px;
      background: linear-gradient(90deg, var(--g1), var(--g2));
      margin-bottom: 1.1rem;
    }
    .step-item:nth-child(2)::before { background: linear-gradient(90deg, var(--g1), var(--accent)); }
    .step-item:nth-child(3)::before { background: linear-gradient(90deg, var(--g2), var(--accent)); }
    .step-item:nth-child(4)::before { background: var(--accent); }
    .step-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
    .step-no {
      font-size: 1.5rem;
      font-weight: 800;
      letter-spacing: -.02em;
      display: inline-flex;
      line-height: 1;
    }
    .step-no em {
      font-style: normal;
      color: var(--g2);
      font-size: .9rem;
      margin-left: 4px;
      font-weight: 700;
      align-self: end;
    }
    .step-item h3 { font-size: 1.05rem; margin: .8rem 0 .45rem; }
    .step-item p { font-size: .93rem; color: var(--muted); line-height: 1.7; margin: 0; }
    @media (max-width: 767px) {
      .step-grid { grid-template-columns: 1fr; }
    }

    /* Side help */
    .side-panel {
      background: #fff;
      border: 1px solid rgba(44, 28, 70, .08);
      border-radius: 26px;
      padding: 1.8rem 1.5rem;
      box-shadow: var(--shadow);
    }
    .side-panel + .side-panel { margin-top: 24px; }
    .mini-title {
      font-weight: 700;
      font-size: 1rem;
      position: relative;
      padding-left: 14px;
      margin: 0 0 1rem;
    }
    .mini-title::before {
      content: "";
      position: absolute;
      left: 0;
      top: .28em;
      width: 5px;
      height: 1.1em;
      border-radius: 999px;
      background: linear-gradient(180deg, var(--g1), var(--g2));
    }
    .badge-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
    .badge-list li {
      background: var(--bg-soft);
      border-radius: 16px;
      padding: .8rem 1rem;
      display: flex;
      justify-content: space-between;
      gap: 10px;
      align-items: center;
      font-size: .93rem;
    }
    .badge-list li strong { color: var(--g1); font-weight: 800; white-space: nowrap; }
    .data-note {
      background: rgba(90,43,217,.05);
      border: 1px dashed rgba(90,43,217,.25);
      border-radius: 16px;
      padding: .75rem .95rem;
      font-size: .875rem;
      color: var(--ink-soft);
      line-height: 1.65;
    }

    /* Notice banner */
    .notice-strip {
      background: var(--deep);
      border-radius: var(--radius-xl);
      padding: clamp(1.8rem, 4vw, 3rem);
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
      position: relative;
      overflow: hidden;
      color: #f0edf7;
    }
    .notice-strip::before {
      content: "";
      position: absolute;
      width: 280px;
      height: 280px;
      border-radius: 50%;
      background: rgba(232, 79, 163, .3);
      filter: blur(80px);
      right: 4%;
      top: -120px;
    }
    .notice-strip h2 { color: #fff; margin: .2rem 0 .5rem; max-width: 780px; }
    .notice-strip p { color: rgba(255,255,255,.8); max-width: 800px; margin: 0; }
    .notice-strip a { position: relative; z-index: 2; white-space: nowrap; }

    /* FAQ */
    .faq-section { background: #f0edf8; }
    .acc-wrap {
      background: #fff;
      border: 1px solid rgba(44, 28, 70, .08);
      border-radius: 26px;
      padding: 1.4rem 1.7rem;
      box-shadow: var(--shadow);
    }
    .faq-accordion {
      --bs-accordion-bg: #fff;
      --bs-accordion-border-width: 0;
      --bs-accordion-border-radius: 0;
      --bs-accordion-inner-border-radius: 0;
      --bs-accordion-body-padding-y: .9rem 1.1rem;
      --bs-accordion-active-bg: transparent;
      --bs-accordion-active-color: var(--g1);
      --bs-accordion-btn-focus-box-shadow: none;
    }
    .acc-wrap .accordion-item {
      background: transparent;
      border-bottom: 1px solid rgba(44, 28, 70, .09);
      border-radius: 0;
    }
    .acc-wrap .accordion-item:last-child { border-bottom: 0; }
    .faq-accordion .accordion-button {
      font-weight: 700;
      background: transparent;
      padding: 1.05rem .2rem;
      font-size: 1.02rem;
      color: var(--ink);
      gap: 12px;
      box-shadow: none;
    }
    .faq-accordion .accordion-button:not(.collapsed) { background: transparent; color: var(--g1); }
    .faq-accordion .accordion-button::after { background-size: 1rem; }
    .faq-accordion .accordion-body {
      padding: 0 .4rem 1rem;
      color: var(--muted);
    }
    .acc-head {
      display: flex;
      align-items: flex-start;
      gap: 30px;
    }
    @media (min-width: 992px) {
      .acc-head { display: grid; grid-template-columns: 1fr .8fr; gap: 48px; }
    }

    /* Footer */
    .site-footer {
      background: var(--deep-2);
      color: rgba(244, 241, 250, .74);
      padding-top: 3.5rem;
    }
    .footer-top {
      display: grid;
      gap: 34px;
      grid-template-columns: 1.4fr 1fr 1fr 1fr;
      padding-bottom: 2.4rem;
    }
    .footer-brand-col p { max-width: 360px; font-size: .95rem; }
    .footer-brand-col .brand-logo { color: #fff; }
    .footer-brand-col .brand-text { color: #fff; }
    .footer-col h4 {
      color: #fff;
      font-size: .98rem;
      margin: .6rem 0 1.1rem;
    }
    .footer-links {
      list-style: none;
      padding: 0;
      margin: 0;
      display: grid;
      gap: .65rem;
    }
    .footer-links a {
      color: rgba(244, 241, 250, .68);
      font-size: .93rem;
      text-decoration: none;
      transition: color .2s, padding-left .2s;
    }
    .footer-links a:hover { color: #fff; padding-left: 4px; }
    .footer-note {
      border-top: 1px solid rgba(255,255,255,.08);
      padding: 1.4rem 0;
      font-size: .86rem;
    }
    .footer-bottom-inner {
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      gap: 8px;
      color: rgba(244, 241, 250, .55);
    }
    .footer-bottom-inner p { margin: 0; }
    @media (max-width: 991.98px) {
      .footer-top { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 620px) {
      .footer-top { grid-template-columns: 1fr; }
      .footer-bottom-inner { flex-direction: column; }
    }

    @media (prefers-reduced-motion: reduce) {
      html { scroll-behavior: auto; }
      * { transition: none !important; animation: none !important; }
    }