:root {
  color-scheme: light;
  --ink: #17211d;
  --muted: #5d6f68;
  --soft: #eff5f1;
  --paper: #fffdf7;
  --line: #d9e4dd;
  --green: #18845f;
  --blue: #1c75a6;
  --yellow: #dba923;
  --red: #b6412e;
  --panel: #ffffff;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: var(--paper);
}

body {
  margin: 0;
  min-height: 100%;
  color: var(--ink);
  font-family: "Noto Serif SC", "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", sans-serif;
  line-height: 1.72;
  letter-spacing: 0;
  background:
    linear-gradient(90deg, rgba(24, 132, 95, 0.07) 1px, transparent 1px),
    linear-gradient(180deg, rgba(28, 117, 166, 0.06) 1px, transparent 1px),
    var(--paper);
  background-size: 42px 42px, 42px 42px, auto;
}

a {
  color: var(--blue);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid rgba(219, 169, 35, 0.62);
  outline-offset: 3px;
}

.site-shell {
  width: min(1080px, 100%);
  margin: 0 auto;
  padding: 24px 18px 56px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0 18px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  text-decoration: none;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 8px;
  color: #ffffff;
  font-weight: 900;
  background: linear-gradient(135deg, var(--green), var(--blue));
}

.brand-text {
  display: grid;
  gap: 0;
}

.brand-title {
  font-size: 15px;
  font-weight: 900;
  line-height: 1.2;
}

.brand-subtitle {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.2;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

.nav a {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--ink);
  font-size: 13px;
  font-weight: 800;
  text-decoration: none;
  background: rgba(255, 255, 255, 0.78);
}

.hero {
  display: grid;
  gap: 18px;
  padding: clamp(28px, 7vw, 64px);
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(255, 253, 247, 0.95), rgba(238, 247, 242, 0.96)),
    repeating-linear-gradient(135deg, rgba(24, 132, 95, 0.12) 0 1px, transparent 1px 18px);
}

.kicker {
  color: var(--green);
  font-size: 13px;
  font-weight: 900;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.24;
}

h1 {
  max-width: 860px;
  font-size: clamp(34px, 7vw, 68px);
}

h2 {
  margin-top: 34px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
  font-size: clamp(24px, 4vw, 34px);
}

h3 {
  margin-top: 24px;
  font-size: 20px;
}

p,
li {
  font-size: 16px;
}

.lead {
  max-width: 760px;
  margin: 0;
  color: var(--muted);
  font-size: clamp(17px, 3vw, 21px);
  line-height: 1.66;
}

.meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.pill {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 10px;
  border-radius: 8px;
  color: var(--green);
  font-size: 13px;
  font-weight: 900;
  background: #e6f5ec;
}

.pill-warning {
  color: #7a5200;
  background: #fff3c7;
}

.content {
  margin-top: 22px;
  padding: clamp(22px, 4vw, 44px);
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.9);
}

.content p {
  margin: 14px 0 0;
}

.content ul,
.content ol {
  margin: 14px 0 0;
  padding-left: 1.25em;
}

.link-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 18px;
}

.link-card {
  display: grid;
  gap: 8px;
  min-height: 132px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--ink);
  text-decoration: none;
  background: var(--panel);
}

.link-card strong {
  font-size: 18px;
}

.link-card span {
  color: var(--muted);
  font-size: 14px;
}

.notice {
  margin: 20px 0 0;
  padding: 16px;
  border-left: 4px solid var(--yellow);
  border-radius: 8px;
  background: #fff9df;
}

.danger {
  border-left-color: var(--red);
  background: #fff1ec;
}

.table-wrap {
  width: 100%;
  margin-top: 18px;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}

table {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
}

th,
td {
  padding: 13px 14px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
  font-size: 14px;
}

th {
  color: var(--green);
  font-weight: 900;
  background: #f1f7f3;
}

tr:last-child td {
  border-bottom: 0;
}

.footer {
  margin-top: 32px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}

.footer a {
  font-weight: 800;
}

@media (max-width: 760px) {
  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav {
    justify-content: flex-start;
  }

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

  .hero {
    padding: 28px 20px;
  }

  .content {
    padding: 20px;
  }
}

.help-body {
  --help-ink: #1d2f2a;
  --help-muted: #617871;
  --help-green: #23a979;
  --help-blue: #2f93d1;
  --help-yellow: #f3c84b;
  --help-coral: #f06f5f;
  --help-line: rgba(37, 108, 91, 0.14);
  background:
    radial-gradient(circle at 18% 6%, rgba(35, 169, 121, 0.14), transparent 28%),
    linear-gradient(180deg, #eaf9f3 0%, #f7fbf1 44%, #fff8e5 100%);
  color: var(--help-ink);
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Hiragino Sans GB", sans-serif;
  line-height: 1.55;
}

.help-app-shell {
  width: min(480px, 100%);
  margin: 0 auto;
  padding: 12px 14px 36px;
}

.help-topbar {
  position: sticky;
  z-index: 20;
  top: 0;
  display: grid;
  grid-template-columns: 44px 1fr auto;
  align-items: center;
  gap: 8px;
  min-height: 56px;
  margin: 0 -14px 12px;
  padding: 6px 14px;
  background: rgba(238, 249, 242, 0.92);
  backdrop-filter: blur(14px);
}

.help-back,
.help-legal-nav a,
.help-primary-action,
.help-secondary-action {
  text-decoration: none;
}

.help-back {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border: 1px solid rgba(36, 126, 98, 0.15);
  border-radius: 12px;
  color: var(--help-ink);
  font-size: 28px;
  font-weight: 700;
  line-height: 1;
  background: rgba(255, 255, 255, 0.76);
}

.help-page-title {
  text-align: center;
  font-size: 19px;
  font-weight: 900;
  letter-spacing: 0;
}

.help-legal-nav {
  display: flex;
  gap: 6px;
}

.help-legal-nav a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  height: 30px;
  padding: 0 8px;
  border: 1px solid rgba(36, 126, 98, 0.12);
  border-radius: 10px;
  color: var(--help-green);
  font-size: 12px;
  font-weight: 900;
  background: rgba(255, 255, 255, 0.72);
}

.help-hero {
  position: relative;
  min-height: 288px;
  margin-top: 8px;
  padding: 28px 24px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.78);
  border-radius: 28px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.96), rgba(232, 250, 242, 0.9)),
    linear-gradient(150deg, rgba(35, 169, 121, 0.18), rgba(47, 147, 209, 0.12));
  box-shadow: 0 18px 38px rgba(37, 108, 91, 0.12);
}

.help-hero::before {
  content: "";
  position: absolute;
  right: -58px;
  bottom: -48px;
  width: 190px;
  height: 190px;
  border-radius: 42px;
  transform: rotate(18deg);
  background: linear-gradient(135deg, rgba(35, 169, 121, 0.2), rgba(47, 147, 209, 0.17));
}

.help-hero-copy {
  position: relative;
  z-index: 2;
  max-width: 320px;
}

.help-kicker,
.help-section-head span,
.help-contact-kicker {
  color: var(--help-green);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.08em;
}

.help-hero h2 {
  margin: 12px 0 12px;
  color: var(--help-ink);
  font-size: 38px;
  font-weight: 900;
  line-height: 1.12;
}

.help-hero p {
  max-width: 270px;
  margin: 0;
  color: var(--help-muted);
  font-size: 15px;
  line-height: 1.8;
}

.help-hero-tag {
  position: absolute;
  z-index: 3;
  right: 22px;
  bottom: 22px;
  display: inline-flex;
  align-items: center;
  height: 32px;
  padding: 0 12px;
  border-radius: 999px;
  color: #ffffff;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.08em;
  background: var(--help-ink);
  box-shadow: 0 10px 24px rgba(29, 47, 42, 0.18);
}

.help-route {
  position: absolute;
  z-index: 1;
  left: 74px;
  right: 62px;
  bottom: 86px;
  height: 88px;
  border: 2px dashed rgba(47, 147, 209, 0.28);
  border-top: 0;
  border-left: 0;
  border-radius: 0 0 100px 0;
  transform: rotate(-7deg);
}

.help-shape {
  position: absolute;
  z-index: 2;
  display: block;
}

.help-shape-green {
  right: 72px;
  top: 42px;
  width: 56px;
  height: 56px;
  border-radius: 18px;
  transform: rotate(14deg);
  background: var(--help-green);
  box-shadow: 0 13px 24px rgba(35, 169, 121, 0.26);
}

.help-shape-blue {
  right: 26px;
  top: 116px;
  width: 44px;
  height: 70px;
  border-radius: 22px;
  transform: rotate(-18deg);
  background: var(--help-blue);
  box-shadow: 0 13px 24px rgba(47, 147, 209, 0.2);
}

.help-shape-yellow {
  left: 26px;
  bottom: 34px;
  width: 42px;
  height: 42px;
  border-radius: 14px;
  transform: rotate(23deg);
  background: var(--help-yellow);
  box-shadow: 0 12px 22px rgba(243, 200, 75, 0.28);
}

.help-quick-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 14px;
}

.help-quick-card {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 4px 10px;
  align-items: center;
  min-height: 92px;
  padding: 15px 14px;
  border: 1px solid rgba(255, 255, 255, 0.74);
  border-radius: 20px;
  color: var(--help-ink);
  text-decoration: none;
  background: rgba(255, 255, 255, 0.86);
  box-shadow: 0 12px 26px rgba(37, 108, 91, 0.08);
}

.help-card-icon {
  grid-row: span 2;
  display: block;
  width: 42px;
  height: 42px;
  border-radius: 16px;
}

.help-card-icon-green {
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.42) 2px, transparent 2px),
    linear-gradient(180deg, rgba(255, 255, 255, 0.36) 2px, transparent 2px),
    var(--help-green);
  background-size: 12px 12px;
}

.help-card-icon-blue {
  background:
    radial-gradient(circle at 64% 34%, #ffffff 0 5px, transparent 6px),
    var(--help-blue);
}

.help-quick-card strong {
  min-width: 0;
  font-size: 16px;
  font-weight: 900;
  line-height: 1.25;
}

.help-quick-card span:last-child {
  min-width: 0;
  color: var(--help-muted);
  font-size: 12px;
  line-height: 1.45;
}

.help-section,
.help-contact-panel {
  margin-top: 16px;
  padding: 20px;
  border: 1px solid rgba(255, 255, 255, 0.74);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 14px 30px rgba(37, 108, 91, 0.08);
}

.help-section-head {
  display: grid;
  gap: 4px;
  margin-bottom: 14px;
}

.help-section h2,
.help-contact-panel h2 {
  margin: 0;
  padding: 0;
  border: 0;
  color: var(--help-ink);
  font-size: 24px;
  font-weight: 900;
  line-height: 1.22;
}

.help-guide-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.help-guide-list li {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: 12px;
  padding: 14px;
  border: 1px solid var(--help-line);
  border-radius: 18px;
  background: #f7fcf6;
}

.help-step {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  color: #ffffff;
  font-size: 13px;
  font-weight: 900;
  background: linear-gradient(135deg, var(--help-green), var(--help-blue));
}

.help-guide-list h3,
.help-faq-item h3 {
  margin: 0;
  color: var(--help-ink);
  font-size: 16px;
  font-weight: 900;
  line-height: 1.35;
}

.help-guide-list p,
.help-faq-item p,
.help-contact-panel p {
  margin: 6px 0 0;
  color: var(--help-muted);
  font-size: 14px;
  line-height: 1.72;
}

.help-faq-list {
  display: grid;
  gap: 10px;
}

.help-faq-item {
  position: relative;
  padding: 14px 14px 14px 18px;
  border: 1px solid var(--help-line);
  border-radius: 18px;
  background: #ffffff;
}

.help-faq-item::before {
  content: "";
  position: absolute;
  top: 18px;
  left: 0;
  width: 4px;
  height: 22px;
  border-radius: 999px;
  background: var(--help-green);
}

.help-contact-panel {
  display: grid;
  gap: 14px;
  background:
    linear-gradient(135deg, rgba(29, 47, 42, 0.96), rgba(32, 106, 85, 0.94)),
    var(--help-ink);
}

.help-contact-panel h2,
.help-contact-panel p {
  color: #ffffff;
}

.help-contact-panel p {
  opacity: 0.82;
}

.help-contact-kicker {
  color: #92f1ce;
}

.help-contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.help-primary-action,
.help-secondary-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 16px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 900;
}

.help-primary-action {
  color: var(--help-ink);
  background: #ffffff;
}

.help-secondary-action {
  border: 1px solid rgba(255, 255, 255, 0.34);
  color: #ffffff;
}

.help-contact-note {
  margin-top: 0 !important;
  font-size: 12px !important;
}

.help-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 14px;
  justify-content: center;
  margin-top: 18px;
  padding: 10px 0;
}

.help-footer a {
  color: var(--help-muted);
  font-size: 12px;
  font-weight: 800;
  text-decoration: none;
}

@media (max-width: 380px) {
  .help-app-shell {
    padding-right: 10px;
    padding-left: 10px;
  }

  .help-topbar {
    margin-right: -10px;
    margin-left: -10px;
    padding-right: 10px;
    padding-left: 10px;
  }

  .help-legal-nav a {
    min-width: 32px;
    padding: 0 6px;
  }

  .help-hero {
    min-height: 274px;
    padding: 24px 20px;
  }

  .help-hero h2 {
    font-size: 34px;
  }

  .help-quick-card {
    grid-template-columns: 1fr;
    min-height: 116px;
  }

  .help-card-icon {
    grid-row: auto;
  }
}

.contact-body {
  --contact-ink: #1d2f2a;
  --contact-muted: #617871;
  --contact-green: #23a979;
  --contact-blue: #2f93d1;
  --contact-yellow: #f3c84b;
  --contact-line: rgba(37, 108, 91, 0.14);
  background:
    radial-gradient(circle at 16% 8%, rgba(47, 147, 209, 0.13), transparent 28%),
    linear-gradient(180deg, #edf9f4 0%, #f7fbf1 52%, #fff8e5 100%);
  color: var(--contact-ink);
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Hiragino Sans GB", sans-serif;
  line-height: 1.55;
}

.contact-shell {
  width: min(480px, 100%);
  margin: 0 auto;
  padding: 12px 14px 36px;
}

.contact-hero {
  position: relative;
  min-height: 286px;
  padding: 28px 24px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.78);
  border-radius: 28px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.96), rgba(232, 250, 242, 0.9)),
    linear-gradient(150deg, rgba(35, 169, 121, 0.18), rgba(47, 147, 209, 0.12));
  box-shadow: 0 18px 38px rgba(37, 108, 91, 0.12);
}

.contact-hero::before {
  content: "";
  position: absolute;
  right: -68px;
  bottom: -54px;
  width: 200px;
  height: 200px;
  border-radius: 48px;
  transform: rotate(18deg);
  background: linear-gradient(135deg, rgba(35, 169, 121, 0.2), rgba(47, 147, 209, 0.17));
}

.contact-hero-copy {
  position: relative;
  z-index: 2;
  max-width: 320px;
}

.contact-kicker,
.contact-section-head span {
  color: var(--contact-green);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.08em;
}

.contact-hero h1 {
  margin: 12px 0 12px;
  color: var(--contact-ink);
  font-size: 42px;
  font-weight: 900;
  line-height: 1.1;
}

.contact-hero p,
.contact-section p {
  margin: 0;
  color: var(--contact-muted);
  font-size: 15px;
  line-height: 1.78;
}

.contact-tag {
  position: absolute;
  z-index: 3;
  right: 22px;
  bottom: 22px;
  display: inline-flex;
  align-items: center;
  height: 32px;
  padding: 0 12px;
  border-radius: 999px;
  color: #ffffff;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.08em;
  background: var(--contact-ink);
  box-shadow: 0 10px 24px rgba(29, 47, 42, 0.18);
}

.contact-mark {
  position: absolute;
  z-index: 2;
  display: block;
}

.contact-mark-green {
  right: 56px;
  top: 42px;
  width: 60px;
  height: 60px;
  border-radius: 20px;
  transform: rotate(14deg);
  background: var(--contact-green);
}

.contact-mark-blue {
  right: 28px;
  top: 128px;
  width: 44px;
  height: 70px;
  border-radius: 22px;
  transform: rotate(-16deg);
  background: var(--contact-blue);
}

.contact-mark-yellow {
  left: 28px;
  bottom: 34px;
  width: 42px;
  height: 42px;
  border-radius: 14px;
  transform: rotate(23deg);
  background: var(--contact-yellow);
}

.contact-section {
  margin-top: 16px;
  padding: 20px;
  border: 1px solid rgba(255, 255, 255, 0.74);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 14px 30px rgba(37, 108, 91, 0.08);
}

.contact-section-head {
  display: grid;
  gap: 4px;
  margin-bottom: 14px;
}

.contact-section h2 {
  margin: 0;
  padding: 0;
  border: 0;
  color: var(--contact-ink);
  font-size: 24px;
  font-weight: 900;
  line-height: 1.22;
}

.contact-feature-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.contact-feature-list span {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 10px;
  border-radius: 999px;
  color: var(--contact-green);
  font-size: 13px;
  font-weight: 900;
  background: #e6f5ec;
}

.contact-actions {
  display: grid;
  gap: 10px;
}

.contact-action {
  display: grid;
  gap: 4px;
  width: 100%;
  padding: 16px;
  border: 1px solid var(--contact-line);
  border-radius: 18px;
  color: var(--contact-ink);
  font: inherit;
  text-align: left;
  text-decoration: none;
  background: #ffffff;
  cursor: pointer;
}

.contact-action span {
  color: var(--contact-muted);
  font-size: 13px;
  font-weight: 800;
}

.contact-action strong {
  color: var(--contact-ink);
  font-size: 20px;
  font-weight: 900;
  line-height: 1.2;
  word-break: break-word;
}

.contact-action-primary {
  color: #ffffff;
  background: linear-gradient(135deg, var(--contact-green), var(--contact-blue));
}

.contact-action-primary span,
.contact-action-primary strong {
  color: #ffffff;
}

.contact-qr-section {
  display: grid;
  gap: 16px;
}

.contact-qr-card {
  display: grid;
  gap: 10px;
  justify-items: center;
  margin: 0;
  padding: 16px;
  border: 1px solid var(--contact-line);
  border-radius: 20px;
  background: #f7fcf6;
}

.contact-qr-card img {
  display: block;
  width: min(250px, 100%);
  height: auto;
  border: 8px solid #ffffff;
  border-radius: 18px;
  box-shadow: 0 12px 28px rgba(37, 108, 91, 0.12);
}

.contact-qr-card figcaption {
  color: var(--contact-muted);
  font-size: 13px;
  font-weight: 800;
}

.contact-toast {
  position: fixed;
  z-index: 100;
  left: 50%;
  bottom: 28px;
  max-width: min(320px, calc(100% - 32px));
  padding: 12px 16px;
  border-radius: 999px;
  color: #ffffff;
  font-size: 14px;
  font-weight: 900;
  text-align: center;
  background: rgba(29, 47, 42, 0.94);
  box-shadow: 0 14px 30px rgba(29, 47, 42, 0.2);
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 12px);
  transition: opacity 180ms ease, transform 180ms ease;
}

.contact-toast.is-visible {
  opacity: 1;
  transform: translate(-50%, 0);
}

@media (max-width: 380px) {
  .contact-shell {
    padding-right: 10px;
    padding-left: 10px;
  }

  .contact-hero {
    min-height: 270px;
    padding: 24px 20px;
  }

  .contact-hero h1 {
    font-size: 38px;
  }
}