:root {
  --brand: rgb(255, 80, 0);
  --brand-dark: #E85A00;
  --brand-soft: #FFF3EC;
  --page-bg: #F6F6F6;
  --card-bg: #FFFFFF;
  --text: #222222;
  --muted: #555555;
  --light-muted: #777777;
  --line: #E9E9E9;
  --footer: #1F1F1F;
  --footer-2: #2B2B2B;
  --white: #FFFFFF;
  --radius: 18px;
  --shadow: 0 12px 30px rgba(0, 0, 0, .08);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  background: var(--page-bg);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
}

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

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

.container {
  width: min(1200px, calc(100% - 32px));
  margin: 0 auto;
}

.section {
  padding: 56px 0;
}

.section.compact {
  padding: 42px 0;
}

.section-white {
  background: #FFFFFF;
}

.section-soft {
  background: var(--brand-soft);
}

.section-title {
  margin: 0 0 10px;
  font-size: clamp(26px, 3vw, 40px);
  line-height: 1.25;
  letter-spacing: -.02em;
  color: #171717;
}

.section-title .accent,
.accent {
  color: var(--brand);
}

.section-desc {
  margin: 0 0 28px;
  color: var(--muted);
  max-width: 820px;
}

.center {
  text-align: center;
}

.center .section-desc {
  margin-left: auto;
  margin-right: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  background: rgba(255, 255, 255, .96);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(0, 0, 0, .06);
  box-shadow: 0 8px 20px rgba(0, 0, 0, .04);
}

.desktop-header {
  display: none;
  align-items: center;
  gap: 24px;
  min-height: 78px;
}

.logo-wrap,
.mobile-logo,
.drawer-logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.site-logo {
  width: 132px;
  max-height: 46px;
  object-fit: contain;
}

.desktop-nav {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
}

.desktop-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 12px;
  border-radius: 999px;
  color: #282828;
  font-size: 15px;
  white-space: nowrap;
  transition: color .2s ease, background .2s ease;
}

.desktop-nav a:hover,
.desktop-nav a.active {
  color: var(--brand);
  background: rgba(255, 80, 0, .1);
}

.main-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 42px;
  padding: 0 22px;
  border-radius: 999px;
  background: var(--brand);
  color: #FFFFFF;
  font-weight: 700;
  border: 0;
  box-shadow: 0 10px 20px rgba(255, 80, 0, .24);
  transition: transform .2s ease, background .2s ease, box-shadow .2s ease;
  white-space: nowrap;
}

.main-btn:hover {
  background: var(--brand-dark);
  transform: translateY(-1px);
  box-shadow: 0 14px 24px rgba(255, 80, 0, .28);
}

.header-btn {
  flex: 0 0 auto;
}

.mobile-header {
  min-height: 62px;
  display: grid;
  grid-template-columns: 46px 1fr auto;
  align-items: center;
  gap: 8px;
  padding: 0 12px;
}

.menu-toggle {
  width: 42px;
  height: 42px;
  border: 0;
  border-radius: 12px;
  background: rgba(255, 80, 0, .1);
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
}

.menu-toggle span {
  width: 21px;
  height: 2px;
  border-radius: 4px;
  background: #222222;
}

.mobile-logo img {
  width: 112px;
  max-height: 40px;
  margin: 0 auto;
  object-fit: contain;
}

.mobile-register {
  min-height: 34px;
  padding: 0 12px;
  font-size: 13px;
  box-shadow: none;
}

.drawer-overlay {
  position: fixed;
  inset: 0;
  z-index: 110;
  background: rgba(0, 0, 0, .48);
  opacity: 0;
  pointer-events: none;
  transition: opacity .25s ease;
}

.mobile-drawer {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 120;
  width: 84vw;
  max-width: 320px;
  height: 100vh;
  background: #FFFFFF;
  box-shadow: 18px 0 40px rgba(0, 0, 0, .18);
  transform: translateX(-102%);
  transition: transform .28s ease;
  overflow-y: auto;
}

.drawer-open {
  overflow: hidden;
}

.drawer-open .drawer-overlay {
  opacity: 1;
  pointer-events: auto;
}

.drawer-open .mobile-drawer {
  transform: translateX(0);
}

.drawer-head {
  min-height: 76px;
  padding: 16px 18px;
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.drawer-logo img {
  width: 124px;
  max-height: 44px;
  object-fit: contain;
}

.drawer-close {
  width: 36px;
  height: 36px;
  border: 0;
  border-radius: 50%;
  background: var(--brand-soft);
  color: var(--brand);
  font-size: 24px;
  line-height: 1;
}

.drawer-nav {
  padding: 14px;
  display: grid;
  gap: 8px;
}

.drawer-nav a {
  padding: 13px 14px;
  border-radius: 12px;
  color: #242424;
  background: #FAFAFA;
  border: 1px solid #F0F0F0;
  font-weight: 600;
}

.drawer-nav a.active,
.drawer-nav a:hover {
  color: var(--brand);
  background: var(--brand-soft);
  border-color: rgba(255, 80, 0, .25);
}

.hero-section {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(0,0,0,.78), rgba(0,0,0,.58)),
    url('banner.webp');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  padding: 36px 0 44px;
}

.hero-section::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 25% 20%, rgba(255, 80, 0, .22), transparent 34%),
              linear-gradient(180deg, rgba(0,0,0,.1), rgba(0,0,0,.35));
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr;
  align-items: center;
  gap: 20px;
  max-width: 1200px;
  width: min(1200px, calc(100% - 32px));
  margin: 0 auto;
  text-align: center;
}

.hero-image {
  order: 1;
  min-width: 0;
}

.hero-image img {
  width: 100%;
  max-height: 320px;
  object-fit: contain;
  object-position: center;
  filter: drop-shadow(0 18px 32px rgba(0,0,0,.35));
}

.hero-content {
  order: 2;
  position: relative;
  z-index: 2;
}

.hero-kicker {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
  padding: 5px 12px;
  border-radius: 999px;
  color: #FFFFFF;
  background: rgba(255, 80, 0, .18);
  border: 1px solid rgba(255, 80, 0, .36);
  font-size: 14px;
}

.hero-title {
  margin: 0 0 14px;
  color: rgb(255, 80, 0);
  font-size: clamp(34px, 6vw, 58px);
  line-height: 1.12;
  letter-spacing: -.04em;
}

.hero-desc {
  margin: 0 auto 22px;
  color: #FFFFFF;
  font-size: 16px;
  max-width: 640px;
}

.hero-note {
  margin-top: 14px;
  color: #E8E8E8;
  font-size: 14px;
}

.quick-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.quick-card {
  background: #FFFFFF;
  border: 1px solid rgba(255, 80, 0, .12);
  border-radius: 16px;
  padding: 16px;
  box-shadow: 0 8px 18px rgba(0, 0, 0, .04);
}

.quick-card strong {
  display: block;
  margin-bottom: 5px;
  color: #1f1f1f;
}

.quick-card p {
  margin: 0 0 8px;
  color: var(--muted);
  font-size: 14px;
}

.text-link {
  display: inline-flex;
  align-items: center;
  color: var(--brand);
  font-weight: 700;
}

.text-link:hover {
  color: var(--brand-dark);
  text-decoration: underline;
}

.card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.card-grid.two {
  grid-template-columns: 1fr;
}

.feature-card,
.content-card,
.service-card,
.faq-item,
.notice-card,
.step-card {
  background: #FFFFFF;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid rgba(0, 0, 0, .05);
}

.feature-card {
  overflow: hidden;
}

.card-media {
  min-height: 124px;
  padding: 16px 16px 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(180deg, #FFF8F3, #FFFFFF);
}

.card-media img {
  width: 100%;
  max-height: 180px;
  object-fit: contain;
  object-position: center;
}

.card-body {
  padding: 18px 20px 22px;
}

.card-body h3,
.content-card h3,
.service-card h3,
.step-card h3 {
  margin: 0 0 8px;
  font-size: 20px;
  color: #191919;
}

.card-body p,
.content-card p,
.service-card p,
.step-card p,
.notice-card p {
  margin: 0 0 12px;
  color: var(--muted);
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 12px 0 0;
}

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  background: var(--brand-soft);
  color: var(--brand);
  font-weight: 700;
  font-size: 13px;
}

.content-card,
.service-card,
.step-card {
  padding: 22px;
}

.service-card {
  border-top: 4px solid var(--brand);
}

.notice-card {
  padding: 24px;
  background: linear-gradient(135deg, #2A2A2A, #161616);
  color: #FFFFFF;
}

.notice-card h2,
.notice-card h3 {
  margin: 0 0 10px;
  color: var(--brand);
}

.notice-card p,
.notice-card li {
  color: #E8E8E8;
}

.notice-card ul {
  margin: 14px 0 0;
  padding-left: 20px;
}

.app-panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  align-items: center;
  background: #FFFFFF;
  border-radius: 24px;
  padding: 22px;
  box-shadow: var(--shadow);
}

.app-visual {
  min-height: 170px;
  border-radius: 20px;
  background: linear-gradient(180deg, #FFF3EC, #FFFFFF);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 18px;
}

.app-visual img {
  max-height: 360px;
  width: 100%;
  object-fit: contain;
}

.app-copy h2,
.page-hero h1 {
  margin: 0 0 12px;
  font-size: clamp(30px, 4vw, 46px);
  line-height: 1.22;
}

.app-copy p {
  color: var(--muted);
  margin: 0 0 14px;
}

.faq-list {
  display: grid;
  gap: 14px;
}

.faq-item {
  padding: 20px;
}

.faq-item h3 {
  margin: 0 0 8px;
  color: #181818;
  font-size: 18px;
}

.faq-item p {
  margin: 0;
  color: var(--muted);
}

.page-hero {
  background: linear-gradient(135deg, #111111, #2A2A2A);
  color: #FFFFFF;
  padding: 58px 0 48px;
  position: relative;
  overflow: hidden;
}

.page-hero::after {
  content: "";
  position: absolute;
  right: -80px;
  top: -120px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: rgba(255, 80, 0, .2);
}

.page-hero .container {
  position: relative;
  z-index: 2;
}

.page-hero h1 {
  color: var(--brand);
}

.page-hero p {
  margin: 0;
  max-width: 830px;
  color: #E8E8E8;
  font-size: 17px;
}

.page-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
}

.article-block {
  background: #FFFFFF;
  border-radius: 22px;
  padding: 24px;
  box-shadow: var(--shadow);
  border: 1px solid rgba(0, 0, 0, .05);
}

.article-block h2 {
  margin: 0 0 12px;
  font-size: 26px;
  color: #181818;
}

.article-block p {
  margin: 0 0 14px;
  color: var(--muted);
}

.article-block p:last-child {
  margin-bottom: 0;
}

.article-block ul,
.article-block ol {
  margin: 10px 0 0;
  padding-left: 22px;
  color: var(--muted);
}

.article-block li {
  margin-bottom: 8px;
}

.page-image {
  border-radius: 22px;
  overflow: hidden;
  background: linear-gradient(180deg, #FFF3EC, #FFFFFF);
  padding: 18px;
  box-shadow: var(--shadow);
}

.page-image img {
  width: 100%;
  max-height: 430px;
  object-fit: contain;
  object-position: center;
  margin: 0 auto;
}

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

.inline-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 16px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  padding: 46px 0 34px;
}

.site-footer {
  background: var(--footer);
  color: #D8D8D8;
}

.footer-logo {
  width: 128px;
  max-height: 44px;
  object-fit: contain;
  margin-bottom: 12px;
}

.footer-brand p {
  margin: 0;
  color: #D8D8D8;
  max-width: 470px;
}

.footer-col {
  display: grid;
  gap: 8px;
  align-content: start;
}

.footer-col h3 {
  margin: 0 0 6px;
  color: #FFFFFF;
  font-size: 18px;
}

.footer-col a {
  color: #D8D8D8;
  font-size: 14px;
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .08);
  background: var(--footer-2);
  text-align: center;
  padding: 16px;
}

.footer-bottom p {
  margin: 0;
  color: #D8D8D8;
  font-size: 14px;
}

@media (min-width: 640px) {
  .quick-grid {
    grid-template-columns: repeat(3, 1fr);
  }

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

  .footer-grid {
    grid-template-columns: 1.5fr 1fr 1fr;
  }
}

@media (min-width: 768px) {
  .hero-section {
    padding: 42px 0 56px;
  }

  .hero-inner {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    text-align: left;
  }

  .hero-image {
    order: 1;
  }

  .hero-content {
    order: 2;
  }

  .hero-desc {
    margin-left: 0;
  }

  .hero-image img {
    max-height: 520px;
  }

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

  .app-panel {
    grid-template-columns: .92fr 1.08fr;
    padding: 30px;
  }

  .page-layout {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }

  .page-layout.wide {
    grid-template-columns: 1.2fr .8fr;
  }
}

@media (min-width: 980px) {
  .desktop-header {
    display: flex;
  }

  .mobile-header {
    display: none;
  }

  .quick-grid {
    grid-template-columns: repeat(9, 1fr);
  }

  .quick-card {
    padding: 14px 12px;
  }

  .quick-card p {
    min-height: 48px;
  }

  .footer-grid {
    grid-template-columns: 1.8fr 1fr 1fr 1fr;
  }
}

@media (max-width: 420px) {
  .container {
    width: min(100% - 24px, 1200px);
  }

  .mobile-header {
    grid-template-columns: 42px 1fr auto;
    padding: 0 10px;
  }

  .mobile-logo img {
    width: 100px;
  }

  .mobile-register {
    min-height: 32px;
    padding: 0 10px;
    font-size: 13px;
  }

  .section {
    padding: 44px 0;
  }

  .card-body,
  .content-card,
  .service-card,
  .step-card,
  .article-block {
    padding: 18px;
  }
}