:root {
  --brand: rgb(255, 80, 0);
  --brand-dark: #E85A00;
  --brand-soft: #FFF3EC;
  --page-bg: #F6F6F6;
  --text: #222222;
  --muted: #555555;
  --subtle: #777777;
  --dark: #111111;
  --footer: #1F1F1F;
  --footer-soft: #2B2B2B;
  --white: #FFFFFF;
  --shadow: 0 10px 30px rgba(17, 17, 17, .08);
  --radius: 18px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  color: var(--text);
  background: var(--page-bg);
  line-height: 1.72;
  overflow-x: hidden;
}
body.drawer-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
.container { width: min(1160px, calc(100% - 32px)); margin: 0 auto; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, .96);
  border-bottom: 1px solid rgba(255, 80, 0, .12);
  box-shadow: 0 6px 24px rgba(0, 0, 0, .06);
  backdrop-filter: blur(12px);
}
.desktop-header { display: none; }
.mobile-header {
  height: 62px;
  display: grid;
  grid-template-columns: 42px 1fr auto;
  align-items: center;
  gap: 8px;
  padding: 0 14px;
}
.menu-toggle {
  width: 38px;
  height: 38px;
  border: 0;
  background: transparent;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 0;
}
.menu-toggle span {
  width: 22px;
  height: 2px;
  background: #222;
  border-radius: 999px;
}
.mobile-logo { justify-self: center; max-width: 112px; min-width: 92px; }
.mobile-logo img, .brand img { width: 100%; max-height: 42px; object-fit: contain; }
.main-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: 999px;
  background: var(--brand);
  color: #fff;
  font-weight: 800;
  letter-spacing: .02em;
  box-shadow: 0 10px 22px rgba(255, 80, 0, .25);
  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 28px rgba(232, 90, 0, .3); }
.mobile-register { padding: 8px 13px; font-size: 13px; }
.header-btn { padding: 10px 20px; font-size: 15px; }
.drawer-overlay {
  position: fixed;
  inset: 0;
  z-index: 1100;
  background: rgba(0, 0, 0, .56);
  opacity: 0;
  transition: opacity .22s ease;
}
.drawer-overlay.show { opacity: 1; }
.mobile-drawer {
  position: fixed;
  inset: 0 auto 0 0;
  z-index: 1200;
  width: 82vw;
  max-width: 320px;
  background: #fff;
  transform: translateX(-104%);
  transition: transform .24s ease;
  box-shadow: 12px 0 30px rgba(0, 0, 0, .18);
  padding: 18px;
  overflow-y: auto;
}
.mobile-drawer.open { transform: translateX(0); }
.drawer-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 18px;
  border-bottom: 1px solid #f0f0f0;
}
.drawer-head img { width: 118px; max-height: 46px; object-fit: contain; }
.drawer-close {
  width: 36px;
  height: 36px;
  border: 0;
  border-radius: 50%;
  color: var(--brand);
  background: var(--brand-soft);
  font-size: 26px;
  line-height: 1;
}
.drawer-nav { display: grid; gap: 8px; padding-top: 18px; }
.drawer-link {
  padding: 13px 14px;
  border-radius: 14px;
  color: #242424;
  font-weight: 700;
  background: #fff;
}
.drawer-link.active,
.drawer-link:hover { color: var(--brand); background: var(--brand-soft); }
.hero-section {
  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;
  color: #fff;
  padding: 34px 0 40px;
  position: relative;
  overflow: hidden;
}
.hero-section::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 20% 20%, rgba(255,80,0,.22), transparent 36%);
  pointer-events: none;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1fr;
  align-items: center;
  gap: 20px;
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}
.hero-image { order: 1; display: flex; justify-content: center; align-items: center; }
.hero-image img {
  width: 100%;
  max-height: 320px;
  object-fit: contain;
  filter: drop-shadow(0 20px 30px rgba(0, 0, 0, .45));
}
.hero-content { order: 2; position: relative; z-index: 2; text-align: center; }
.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #fff;
  background: rgba(255, 80, 0, .18);
  border: 1px solid rgba(255, 80, 0, .45);
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 13px;
  margin-bottom: 14px;
}
.hero-title {
  margin: 0 0 14px;
  color: rgb(255, 80, 0);
  font-size: clamp(32px, 8vw, 58px);
  line-height: 1.12;
  letter-spacing: -.03em;
  font-weight: 900;
}
.hero-desc {
  margin: 0 auto 22px;
  color: #ffffff;
  font-size: 16px;
  max-width: 620px;
}
.hero-actions { display: flex; justify-content: center; }
.hero-actions .main-btn { padding: 12px 26px; font-size: 16px; }
.section { padding: 54px 0; }
.section.white { background: #fff; }
.section.soft { background: var(--brand-soft); }
.section.dark { background: #151515; color: #fff; }
.section-head { margin-bottom: 26px; }
.section-head.center { text-align: center; max-width: 760px; margin-left: auto; margin-right: auto; }
.section-eyebrow {
  display: inline-flex;
  margin-bottom: 8px;
  color: var(--brand);
  font-size: 14px;
  font-weight: 900;
  letter-spacing: .08em;
}
.section h1,
.section h2,
.page-hero h1 { margin: 0; line-height: 1.25; }
h1 { font-size: clamp(30px, 6vw, 46px); }
h2 { font-size: clamp(25px, 5vw, 36px); }
h3 { margin: 0 0 8px; line-height: 1.35; }
p { margin: 0 0 12px; }
.section-head p,
.page-hero p { color: var(--muted); margin: 10px 0 0; }
.page-hero {
  background:
    linear-gradient(90deg, rgba(0,0,0,.78), rgba(0,0,0,.64)),
    radial-gradient(circle at 20% 20%, rgba(255,80,0,.22), transparent 32%),
    #111;
  color: #fff;
  padding: 58px 0;
}
.page-hero .container { max-width: 900px; }
.page-hero h1 { color: var(--brand); }
.page-hero p { color: #e8e8e8; font-size: 17px; }
.quick-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}
.quick-card {
  background: #fff;
  border-radius: 16px;
  box-shadow: var(--shadow);
  border: 1px solid rgba(255, 80, 0, .08);
  padding: 16px;
  min-height: 116px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.quick-card strong { color: #1e1e1e; font-size: 17px; }
.quick-card span { color: var(--muted); font-size: 14px; }
.text-link {
  color: var(--brand);
  font-weight: 900;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.text-link:hover { color: var(--brand-dark); text-decoration: underline; }
.grid { display: grid; gap: 20px; }
.grid.two, .grid.three, .grid.four { grid-template-columns: 1fr; }
.card,
.feature-card,
.service-card,
.notice-card,
.faq-item,
.step-card {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid rgba(0, 0, 0, .04);
}
.card,
.service-card,
.notice-card,
.faq-item,
.step-card { padding: 22px; }
.feature-card { overflow: hidden; }
.feature-body { padding: 20px; }
.card-image,
.feature-image,
.app-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(180deg, #fff7f2, #ffffff);
  border-bottom: 1px solid rgba(255,80,0,.08);
  padding: 12px;
  min-height: 132px;
}
.card-image img,
.feature-image img,
.app-visual img {
  width: 100%;
  max-height: 168px;
  object-fit: contain;
  object-position: center;
}
.feature-card.large .feature-image img { max-height: 210px; }
.tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 12px 0 6px; }
.tag {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  background: var(--brand-soft);
  color: var(--brand-dark);
  padding: 5px 10px;
  font-size: 13px;
  font-weight: 800;
}
.app-panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  align-items: center;
  background: #fff;
  border-radius: 24px;
  box-shadow: var(--shadow);
  padding: 20px;
}
.app-panel .app-visual { border: 0; border-radius: 20px; min-height: 180px; }
.app-panel .app-visual img { max-height: 290px; }
.info-list { display: grid; gap: 12px; margin: 18px 0; }
.info-item {
  display: grid;
  grid-template-columns: 10px 1fr;
  gap: 10px;
  color: var(--muted);
}
.info-item::before {
  content: "";
  width: 8px;
  height: 8px;
  margin-top: 10px;
  border-radius: 50%;
  background: var(--brand);
}
.notice-card {
  border-left: 5px solid var(--brand);
  background: #fff;
}
.notice-card strong { color: var(--brand-dark); }
.faq-list { display: grid; gap: 16px; }
.faq-item h3 { color: #1f1f1f; }
.faq-item p { color: var(--muted); margin-bottom: 0; }
.page-content { background: #fff; padding: 54px 0; }
.article { max-width: 940px; margin: 0 auto; display: grid; gap: 22px; }
.article .lead { font-size: 17px; color: #444; }
.content-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  align-items: center;
}
.content-visual {
  background: linear-gradient(180deg, #fff7f2, #fff);
  border-radius: 22px;
  padding: 16px;
  box-shadow: var(--shadow);
  display: flex;
  align-items: center;
  justify-content: center;
}
.content-visual img { max-height: 330px; object-fit: contain; }
.steps { counter-reset: item; display: grid; gap: 16px; }
.step-card { position: relative; padding-left: 58px; }
.step-card::before {
  counter-increment: item;
  content: counter(item);
  position: absolute;
  left: 20px;
  top: 22px;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--brand);
  color: #fff;
  font-weight: 900;
  display: grid;
  place-items: center;
}
.link-row { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 12px; }
.site-footer {
  background: var(--footer);
  color: #d8d8d8;
  padding-top: 48px;
}
.footer-grid { display: grid; gap: 26px; }
.footer-brand img { width: 132px; max-height: 46px; object-fit: contain; margin-bottom: 12px; }
.footer-brand p,
.footer-note p { color: #cfcfcf; }
.footer-links { display: grid; gap: 8px; }
.footer-links h3,
.footer-note h3 { color: #fff; margin-bottom: 6px; }
.footer-links a { color: #d8d8d8; }
.footer-links a:hover { color: var(--brand); }
.footer-bottom {
  margin-top: 36px;
  padding: 18px 0;
  background: var(--footer-soft);
  text-align: center;
  color: #bdbdbd;
}
.footer-bottom p { margin: 0; }
@media (max-width: 360px) {
  .mobile-header { grid-template-columns: 36px 1fr auto; padding: 0 10px; }
  .mobile-logo { max-width: 96px; }
  .mobile-register { padding: 7px 10px; font-size: 12px; }
}
@media (min-width: 640px) {
  .quick-grid { grid-template-columns: repeat(3, 1fr); }
  .grid.two { grid-template-columns: repeat(2, 1fr); }
  .grid.three { grid-template-columns: repeat(2, 1fr); }
  .grid.four { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 769px) {
  .hero-section { padding: 50px 0 58px; }
  .hero-inner { grid-template-columns: 1fr 1fr; gap: 40px; }
  .hero-image { order: 1; }
  .hero-content { order: 2; text-align: left; }
  .hero-desc { margin-left: 0; margin-right: 0; }
  .hero-actions { justify-content: flex-start; }
  .hero-image img { max-height: 520px; }
}
@media (min-width: 920px) {
  .mobile-header { display: none; }
  .desktop-header {
    height: 76px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 22px;
  }
  .brand { width: 138px; flex: 0 0 auto; }
  .desktop-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    flex: 1;
  }
  .nav-link {
    padding: 8px 10px;
    border-radius: 999px;
    color: #282828;
    font-size: 14px;
    font-weight: 800;
    white-space: nowrap;
  }
  .nav-link.active,
  .nav-link:hover { color: var(--brand); background: var(--brand-soft); }
  .grid.three { grid-template-columns: repeat(3, 1fr); }
  .grid.four { grid-template-columns: repeat(4, 1fr); }
  .quick-grid { grid-template-columns: repeat(5, 1fr); }
  .app-panel { grid-template-columns: .9fr 1.1fr; padding: 28px; }
  .content-split { grid-template-columns: .9fr 1.1fr; }
  .footer-grid { grid-template-columns: 1.6fr 1fr 1fr 1.2fr; }
  .feature-card.large { grid-column: span 2; }
}
@media (min-width: 1080px) {
  .nav-link { padding: 8px 13px; font-size: 15px; }
  .quick-grid { grid-template-columns: repeat(9, 1fr); }
}