:root {
  --bg: #f4f8ff;
  --surface: #ffffff;
  --surface-soft: #f8fbff;
  --text-main: #111a2e;
  --text-sub: #4f607d;
  --line: rgba(127, 154, 207, 0.28);
  --line-strong: rgba(98, 131, 193, 0.42);
  --ice: #e8f1ff;
  --soft-blue: #9ac7ff;
  --electric: #2f6dff;
  --violet: #5a50e6;
  --radius-2xl: 32px;
  --radius-xl: 24px;
  --radius-lg: 18px;
  --radius-md: 12px;
  --pill: 999px;
  --shadow-card: 0 16px 40px -30px rgba(26, 57, 139, 0.28);
  --header-h: 74px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--text-main);
  font-family: 'SF Pro Display', 'SF Pro Text', 'PingFang SC', 'Hiragino Sans GB',
    'Noto Sans CJK SC', 'Microsoft YaHei', sans-serif;
  background:
    radial-gradient(circle at 0% 0%, rgba(210, 230, 255, 0.5), transparent 35%),
    radial-gradient(circle at 100% 10%, rgba(227, 233, 255, 0.56), transparent 38%),
    linear-gradient(180deg, #f8fbff 0%, #f4f8ff 52%, #f7faff 100%);
}

.page-enter {
  opacity: 0;
  transition: opacity 0.3s ease;
}

.page-enter.is-ready {
  opacity: 1;
}

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

a {
  color: inherit;
}

.container {
  width: min(1160px, calc(100% - 48px));
  margin: 0 auto;
}

.section {
  padding: clamp(70px, 10vw, 118px) 0;
}

.kicker {
  margin: 0;
  display: inline-flex;
  align-items: center;
  border: 1px solid rgba(114, 147, 212, 0.35);
  border-radius: var(--pill);
  background: rgba(255, 255, 255, 0.82);
  color: #3667d7;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  padding: 8px 14px;
}

.section-head {
  max-width: 760px;
}

.section-head.center {
  margin: 0 auto;
  text-align: center;
}

.section-head h2 {
  margin: 18px 0 0;
  font-size: clamp(30px, 4.4vw, 50px);
  line-height: 1.14;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

.section-head p {
  margin: 14px 0 0;
  font-size: clamp(15px, 1.8vw, 19px);
  line-height: 1.7;
  color: var(--text-sub);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  background: rgba(248, 251, 255, 0.93);
  border-bottom: 1px solid transparent;
  transition: border-color 0.22s ease, box-shadow 0.22s ease;
}

.site-header::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -1px;
  height: 1px;
  width: var(--scroll-progress, 0%);
  background: linear-gradient(90deg, #7ebeff, #3a78ff, #5d4fe7);
}

.site-header.is-scrolled {
  border-bottom-color: rgba(127, 154, 207, 0.3);
  box-shadow: 0 10px 28px -24px rgba(25, 47, 111, 0.5);
}

.nav-row {
  min-height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-logo {
  width: 38px;
  height: 38px;
  border-radius: 10px;
}

.brand-wordmark {
  font-size: 15px;
  font-weight: 620;
  color: #19233d;
}

.brand-wordmark em {
  font-style: normal;
  font-weight: 540;
  color: #6a7a99;
}

.desktop-nav {
  display: inline-flex;
  align-items: center;
  gap: 28px;
}

.desktop-nav > a {
  text-decoration: none;
  color: #4b5d7a;
  font-size: 14px;
  font-weight: 520;
  transition: color 0.2s ease;
}

.desktop-nav > a:hover {
  color: #192a4f;
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: #fff;
  padding: 0;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 4px;
}

.menu-toggle span {
  width: 16px;
  height: 1.6px;
  border-radius: var(--pill);
  background: #324466;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.menu-toggle.is-open span:nth-child(1) {
  transform: translateY(5px) rotate(45deg);
}

.menu-toggle.is-open span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.is-open span:nth-child(3) {
  transform: translateY(-5px) rotate(-45deg);
}

.mobile-nav {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.25s ease;
  border-top: 1px solid transparent;
}

.mobile-nav.is-open {
  max-height: 280px;
  border-top-color: var(--line);
}

.mobile-nav-inner {
  display: grid;
  gap: 8px;
  padding: 12px 0 18px;
}

.mobile-nav a {
  text-decoration: none;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  padding: 11px 14px;
  color: #445978;
  font-size: 14px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 24px;
  border: 1px solid transparent;
  border-radius: var(--pill);
  font-size: 14px;
  font-weight: 560;
  text-decoration: none;
  transition: transform 0.2s ease, color 0.2s ease, border-color 0.2s ease,
    background-color 0.2s ease, box-shadow 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  color: #fff;
  background: linear-gradient(96deg, #65b2ff 0%, #3774ff 52%, #5d4ee7 100%);
  box-shadow: 0 12px 30px -20px rgba(45, 86, 188, 0.55);
}

.btn-secondary,
.btn-nav {
  color: #344865;
  background: #fff;
  border-color: var(--line);
}

.btn-nav {
  min-height: 38px;
  padding: 0 16px;
  font-size: 13px;
}

.hero {
  padding-top: clamp(52px, 8vw, 92px);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.03fr 0.97fr;
  align-items: center;
  gap: clamp(30px, 4vw, 62px);
}

.hero-copy h1 {
  margin: 22px 0 0;
  font-size: clamp(38px, 6.2vw, 70px);
  line-height: 1.03;
  letter-spacing: -0.03em;
  text-wrap: balance;
}

.hero-sub {
  margin: 22px 0 0;
  max-width: 610px;
  font-size: clamp(16px, 2vw, 21px);
  line-height: 1.72;
  color: var(--text-sub);
}

.hero-actions {
  margin-top: 34px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero-meta {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
}

.hero-meta li {
  padding: 7px 12px;
  border-radius: var(--pill);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.84);
  color: #4f607f;
  font-size: 13px;
}

.hero-visual {
  position: relative;
}

.product-stage {
  border-radius: var(--radius-2xl);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, #fff, #f7faff 78%);
  box-shadow: var(--shadow-card);
  padding: 24px;
}

.stage-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

.stage-head strong {
  font-size: 18px;
  font-weight: 630;
}

.stage-head span {
  font-size: 12px;
  color: #647794;
}

.feature-banner {
  margin-top: 14px;
  border-radius: 15px;
  border: 1px solid var(--line);
  background: linear-gradient(
    118deg,
    rgba(214, 236, 255, 0.9),
    rgba(188, 213, 255, 0.6),
    rgba(200, 193, 255, 0.55)
  );
  padding: 14px 16px;
}

.feature-banner p {
  margin: 0;
  font-size: 14px;
  font-weight: 620;
  color: #233761;
}

.feature-banner small {
  display: block;
  margin-top: 4px;
  font-size: 12px;
  color: #556a8d;
}

.app-list {
  margin-top: 14px;
  display: grid;
  gap: 9px;
}

.app-row {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
  padding: 11px 12px;
  display: grid;
  grid-template-columns: 24px 1fr auto;
  gap: 10px;
  align-items: center;
}

.app-row i {
  width: 24px;
  height: 24px;
  border-radius: 8px;
  background: linear-gradient(130deg, #9ed3ff, #4c7dff 55%, #5d4ee7);
}

.app-row strong {
  display: block;
  font-size: 13px;
  color: #24395f;
}

.app-row span {
  display: block;
  margin-top: 2px;
  font-size: 12px;
  color: #667999;
}

.app-row em {
  font-style: normal;
  font-size: 12px;
  color: #3f61d0;
}

.stage-progress {
  margin-top: 14px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface-soft);
  padding: 11px;
}

.stage-progress p {
  margin: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.stage-progress p span {
  font-size: 12px;
  color: #5f7394;
}

.stage-progress p strong {
  font-size: 13px;
  color: #2d4fbe;
}

.track {
  margin-top: 8px;
  height: 7px;
  border-radius: var(--pill);
  background: rgba(180, 202, 242, 0.55);
  overflow: hidden;
}

.track span {
  display: block;
  width: 72%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, #58a3ff, #3f72f8, #5d4ee7);
}

.stage-progress small {
  margin-top: 7px;
  display: block;
  font-size: 12px;
  color: #607396;
}

.float-card {
  position: absolute;
  max-width: 220px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 10px 26px -24px rgba(23, 42, 92, 0.55);
  padding: 12px;
}

.float-card h3 {
  margin: 0;
  font-size: 13px;
  color: #263a63;
}

.float-card p {
  margin: 6px 0 0;
  font-size: 12px;
  line-height: 1.5;
  color: #5c6f92;
}

.float-left {
  left: -20px;
  bottom: 20px;
}

.float-right {
  right: -12px;
  top: 34px;
}

.feature-stack {
  margin-top: clamp(32px, 4.8vw, 56px);
  display: grid;
  gap: 16px;
}

.feature-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background: linear-gradient(180deg, #fff, #f9fbff 86%);
  box-shadow: var(--shadow-card);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.feature-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 20px 42px -34px rgba(24, 52, 122, 0.36);
}

.feature-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 24px;
  padding: clamp(22px, 3vw, 32px);
}

.feature-card.reverse .feature-copy {
  order: 2;
}

.feature-card.reverse .feature-visual {
  order: 1;
}

.feature-no {
  margin: 0;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: #5670c9;
}

.feature-copy h3 {
  margin: 9px 0 0;
  font-size: clamp(24px, 2.6vw, 33px);
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.feature-copy p {
  margin: 14px 0 0;
  color: var(--text-sub);
  font-size: clamp(15px, 1.6vw, 18px);
  line-height: 1.72;
}

.feature-visual {
  min-height: 208px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: #fff;
  padding: 15px;
}

.visual-discovery {
  display: grid;
  gap: 11px;
}

.visual-banner {
  height: 68px;
  border-radius: 13px;
  background: linear-gradient(120deg, rgba(156, 211, 255, 0.66), rgba(92, 123, 246, 0.45), rgba(109, 82, 228, 0.42));
}

.visual-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.visual-tags span {
  font-size: 12px;
  color: #3d58b4;
  padding: 6px 9px;
  border: 1px solid var(--line);
  border-radius: var(--pill);
  background: #f4f8ff;
}

.visual-lines {
  display: grid;
  gap: 7px;
}

.visual-lines i {
  display: block;
  height: 10px;
  border-radius: var(--pill);
  background: linear-gradient(90deg, rgba(177, 202, 244, 0.82), rgba(199, 219, 250, 0.52));
}

.visual-lines i:nth-child(2) {
  width: 82%;
}

.visual-lines i:nth-child(3) {
  width: 68%;
}

.visual-download {
  display: grid;
  grid-template-columns: 114px 1fr;
  align-items: center;
  gap: 14px;
}

.ring {
  width: 114px;
  height: 114px;
  border-radius: 50%;
  background:
    radial-gradient(circle at center, #fff 53%, transparent 54%),
    conic-gradient(#4c82ff 0 72%, #d6e4fb 72% 100%);
  display: grid;
  place-items: center;
}

.ring span {
  font-size: 18px;
  font-weight: 630;
  color: #3358cb;
}

.download-lines {
  display: grid;
  gap: 9px;
}

.download-lines i {
  display: block;
  height: 10px;
  border-radius: var(--pill);
  background: linear-gradient(90deg, rgba(166, 197, 245, 0.8), rgba(187, 211, 250, 0.46));
}

.download-lines i:nth-child(2) {
  width: 75%;
}

.download-lines small {
  font-size: 12px;
  color: #607295;
}

.visual-files {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 9px;
}

.visual-files article {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #f9fbff;
  padding: 11px;
}

.visual-files span {
  display: block;
  font-size: 12px;
  color: #617495;
}

.visual-files strong {
  display: block;
  margin-top: 5px;
  font-size: 19px;
  color: #2d4388;
}

.visual-sign {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.visual-sign ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 11px;
}

.visual-sign li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: #44577c;
}

.visual-sign li span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: linear-gradient(140deg, #67afff, #4a73ee, #5d4ee7);
}

.visual-sign p {
  margin: 13px 0 0;
  font-size: 12px;
  color: #5f7192;
}

.visual-chat {
  display: grid;
  align-content: center;
  gap: 8px;
}

.bubble {
  margin: 0;
  max-width: 88%;
  border: 1px solid var(--line);
  border-radius: 13px;
  padding: 8px 11px;
  font-size: 12px;
  line-height: 1.55;
}

.bubble.user {
  justify-self: start;
  background: #f9fbff;
  color: #4d6184;
}

.bubble.support {
  justify-self: end;
  background: linear-gradient(110deg, #e5f0ff, #e7edff);
  color: #3550ab;
}

.visual-orders {
  display: grid;
  align-content: center;
  gap: 9px;
}

.visual-orders article {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #f9fbff;
  padding: 10px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.visual-orders strong {
  font-size: 13px;
  color: #2f4268;
}

.visual-orders em {
  font-style: normal;
  font-size: 12px;
  color: #5468ca;
}

.scenarios {
  padding-top: clamp(56px, 7.4vw, 98px);
}

.scenario-grid {
  margin-top: 26px;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 11px;
}

.scenario-card {
  min-height: 208px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.9);
  padding: 18px 16px;
}

.scenario-card span {
  font-size: 12px;
  font-weight: 620;
  letter-spacing: 0.1em;
  color: #5470cf;
}

.scenario-card h3 {
  margin: 12px 0 0;
  font-size: 19px;
  line-height: 1.3;
  letter-spacing: -0.01em;
}

.scenario-card p {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.68;
  color: #556682;
}

.highlights {
  padding-top: clamp(52px, 6.8vw, 90px);
}

.highlight-grid {
  margin-top: 24px;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 11px;
}

.highlight-card {
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #fff;
  padding: 16px 14px;
}

.highlight-card h3 {
  margin: 0;
  font-size: 16px;
  line-height: 1.45;
  letter-spacing: -0.01em;
}

.highlight-card p {
  margin: 8px 0 0;
  font-size: 13px;
  line-height: 1.62;
  color: #5c6f90;
}

.self-sign {
  padding-top: clamp(56px, 7vw, 96px);
}

.self-sign-wrap {
  border: 1px solid var(--line);
  border-radius: var(--radius-2xl);
  background: linear-gradient(162deg, #ffffff, #f6faff 70%);
  box-shadow: var(--shadow-card);
  padding: clamp(24px, 4vw, 40px);
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 22px;
}

.self-sign-copy h2 {
  margin: 18px 0 0;
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.15;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

.self-sign-copy p {
  margin: 14px 0 0;
  color: var(--text-sub);
  font-size: clamp(15px, 1.7vw, 18px);
  line-height: 1.72;
}

.oss-mini-grid {
  display: grid;
  gap: 10px;
  align-content: center;
}

.oss-mini-grid article {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
  padding: 14px;
}

.oss-mini-grid h3 {
  margin: 0;
  font-size: 16px;
  color: #2d4180;
}

.oss-mini-grid p {
  margin: 8px 0 0;
  font-size: 13px;
  color: #5d7092;
}

.faq-wrap {
  width: min(860px, 100%);
}

.faq-list {
  margin-top: 24px;
  display: grid;
  gap: 10px;
}

.faq-item {
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #fff;
  overflow: hidden;
}

.faq-question {
  width: 100%;
  border: 0;
  background: none;
  text-align: left;
  padding: 17px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 16px;
  font-weight: 560;
  color: #1d2947;
  cursor: pointer;
}

.faq-question i {
  font-style: normal;
  font-size: 20px;
  color: #5b71ca;
  transition: transform 0.22s ease;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  padding: 0 18px;
  font-size: 15px;
  line-height: 1.7;
  color: #4f6286;
  transition: max-height 0.25s ease, padding-bottom 0.25s ease;
}

.faq-item.is-open .faq-answer {
  max-height: 180px;
  padding-bottom: 16px;
}

.faq-item.is-open .faq-question i {
  transform: rotate(45deg);
}

.closing {
  padding-top: clamp(54px, 7.2vw, 98px);
}

.closing-card {
  border: 1px solid var(--line-strong);
  border-radius: clamp(22px, 3vw, 32px);
  background:
    linear-gradient(150deg, #fff, #f5f9ff 78%),
    radial-gradient(circle at 86% 18%, rgba(188, 223, 255, 0.45), transparent 40%);
  text-align: center;
  padding: clamp(34px, 5vw, 56px);
}

.closing-card h2 {
  margin: 20px auto 0;
  max-width: 820px;
  font-size: clamp(32px, 4.6vw, 54px);
  line-height: 1.1;
  letter-spacing: -0.03em;
  text-wrap: balance;
}

.closing-card p {
  margin: 16px auto 0;
  max-width: 720px;
  font-size: clamp(15px, 1.7vw, 19px);
  line-height: 1.76;
  color: #516281;
}

.closing-card .hero-actions {
  justify-content: center;
}

.site-footer {
  margin-top: 24px;
  border-top: 1px solid var(--line);
  background: rgba(248, 251, 255, 0.82);
  padding: 34px 0 44px;
}

.footer-grid {
  display: flex;
  justify-content: space-between;
  gap: 40px;
}

.footer-brand p {
  margin: 14px 0 0;
  max-width: 420px;
  font-size: 14px;
  color: #5f7192;
}

.footer-brand small {
  display: block;
  margin-top: 9px;
  font-size: 12px;
  color: #7b8ca9;
}

.footer-links {
  display: flex;
  gap: 40px;
}

.footer-links h3 {
  margin: 2px 0 10px;
  font-size: 13px;
  color: #2f426b;
}

.footer-links a {
  display: block;
  margin-top: 8px;
  text-decoration: none;
  font-size: 13px;
  color: #5b6e91;
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: #3150a7;
}

.guide-hero {
  padding-top: clamp(50px, 7vw, 88px);
}

.guide-hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(24px, 4vw, 44px);
  align-items: center;
}

.guide-stat {
  display: grid;
  gap: 10px;
}

.guide-stat article {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
  padding: 14px;
}

.guide-stat small {
  display: block;
  font-size: 12px;
  color: #66799a;
}

.guide-stat strong {
  display: block;
  margin-top: 7px;
  font-size: 16px;
  color: #2a3e71;
  letter-spacing: -0.01em;
}

.guide-grid {
  margin-top: 24px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.guide-card {
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #fff;
  padding: 18px;
}

.guide-card span {
  font-size: 12px;
  font-weight: 620;
  color: #5873cf;
  letter-spacing: 0.1em;
}

.guide-card h3 {
  margin: 12px 0 0;
  font-size: 20px;
  letter-spacing: -0.01em;
}

.guide-card p {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.68;
  color: #556782;
}

.guide-card a {
  display: inline-flex;
  margin-top: 14px;
  text-decoration: none;
  color: #3557bf;
  font-size: 13px;
  font-weight: 560;
}

.oss-grid {
  margin-top: 24px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.oss-card {
  border: 1px solid var(--line);
  border-radius: 18px;
  background: #fff;
  padding: 20px;
}

.oss-card h3 {
  margin: 0;
  font-size: 21px;
  letter-spacing: -0.01em;
}

.oss-card p {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.72;
  color: #556782;
}

.oss-actions {
  margin-top: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.oss-actions a {
  border: 1px solid var(--line);
  border-radius: var(--pill);
  background: #f7fbff;
  padding: 8px 12px;
  text-decoration: none;
  font-size: 13px;
  color: #3557bf;
}

.safe-box {
  margin-top: 14px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #fff;
  padding: 18px;
}

.safe-box h3 {
  margin: 0;
  font-size: 18px;
  color: #2c426e;
}

.safe-box ul {
  margin: 10px 0 0;
  padding-left: 20px;
}

.safe-box li {
  margin-top: 7px;
  color: #536684;
  line-height: 1.65;
  font-size: 14px;
}

.selfsign-layout {
  margin-top: 24px;
  display: grid;
  grid-template-columns: 1.14fr 0.86fr;
  gap: 12px;
}

.selfsign-form {
  border: 1px solid var(--line);
  border-radius: 20px;
  background: #fff;
  padding: 20px;
}

.selfsign-form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.field-item {
  display: grid;
  gap: 7px;
}

.field-item span {
  font-size: 12px;
  color: #5f7396;
}

.field-item input {
  width: 100%;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 11px;
  padding: 0 12px;
  font-size: 14px;
  color: #213354;
  background: #fdfefe;
  outline: none;
}

.field-item input[type='file'] {
  height: 44px;
  padding: 8px 10px;
  font-size: 13px;
}

.field-item input:focus {
  border-color: #7ba3ef;
  box-shadow: 0 0 0 3px rgba(92, 127, 223, 0.14);
}

.selfsign-actions {
  margin-top: 16px;
  display: grid;
  gap: 10px;
}

.selfsign-actions .btn {
  min-height: 42px;
  width: fit-content;
  min-width: 124px;
}

.selfsign-note {
  margin: 0;
  font-size: 13px;
  line-height: 1.62;
  color: #5f7294;
}

.signing-status {
  margin-top: 14px;
  border: 1px solid rgba(136, 157, 202, 0.44);
  border-radius: 12px;
  background: #f8fbff;
  padding: 11px 12px;
  font-size: 13px;
  color: #3f557f;
  line-height: 1.55;
}

.signing-status.is-working {
  border-color: rgba(82, 126, 224, 0.35);
  color: #3551ad;
  background: #eef4ff;
}

.signing-status.is-success {
  border-color: rgba(44, 165, 123, 0.38);
  color: #137a55;
  background: #ecfbf4;
}

.signing-status.is-error {
  border-color: rgba(209, 75, 87, 0.33);
  color: #a62f3e;
  background: #fff4f5;
}

.signing-result {
  margin-top: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.signing-result .btn {
  min-height: 40px;
  font-size: 13px;
  padding: 0 16px;
}

.selfsign-aside {
  display: grid;
  gap: 10px;
}

.selfsign-aside article {
  border: 1px solid var(--line);
  border-radius: 18px;
  background: #fff;
  padding: 18px;
}

.selfsign-aside h3 {
  margin: 0;
  font-size: 19px;
  letter-spacing: -0.01em;
}

.selfsign-aside p {
  margin: 9px 0 0;
  font-size: 14px;
  line-height: 1.68;
  color: #556782;
}

.selfsign-aside ul {
  margin: 10px 0 0;
  padding-left: 20px;
}

.selfsign-aside li {
  margin-top: 7px;
  color: #536684;
  font-size: 14px;
  line-height: 1.65;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1140px) {
  .container {
    width: min(1160px, calc(100% - 40px));
  }

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

  .hero-visual {
    max-width: 700px;
  }

  .float-left {
    left: -8px;
  }

  .float-right {
    right: 10px;
  }

  .scenario-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .highlight-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 920px) {
  .desktop-nav {
    display: none;
  }

  .menu-toggle {
    display: inline-flex;
  }

  .feature-inner,
  .self-sign-wrap {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .feature-card.reverse .feature-copy,
  .feature-card.reverse .feature-visual {
    order: initial;
  }

  .feature-visual {
    min-height: 188px;
  }

  .visual-download {
    grid-template-columns: 95px 1fr;
  }

  .ring {
    width: 95px;
    height: 95px;
  }

  .guide-grid,
  .oss-grid,
  .selfsign-form-grid,
  .scenario-grid,
  .highlight-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .selfsign-layout {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    flex-direction: column;
    gap: 26px;
  }
}

@media (max-width: 640px) {
  :root {
    --header-h: 68px;
  }

  .container {
    width: calc(100% - 28px);
  }

  .section {
    padding: 68px 0;
  }

  .hero {
    padding-top: 46px;
  }

  .hero-actions {
    width: 100%;
  }

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

  .product-stage {
    padding: 18px;
    border-radius: 22px;
  }

  .float-card {
    position: static;
    max-width: none;
    margin-top: 10px;
  }

  .feature-inner {
    padding: 18px;
  }

  .guide-grid,
  .oss-grid,
  .selfsign-form-grid,
  .scenario-grid,
  .highlight-grid {
    grid-template-columns: 1fr;
  }

  .selfsign-form {
    padding: 16px;
  }

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

  .faq-question {
    padding: 15px;
    font-size: 15px;
  }

  .faq-answer {
    padding: 0 15px;
    font-size: 14px;
  }

  .faq-item.is-open .faq-answer {
    max-height: 240px;
    padding-bottom: 15px;
  }

  .closing-card {
    text-align: left;
  }

  .closing-card .hero-actions {
    justify-content: flex-start;
  }

  .footer-links {
    gap: 28px;
  }
}

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

  * {
    animation: none !important;
    transition: none !important;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
  }
}