/* 通提宝 · UI09 电商促销风（循环） */
:root {
  --nav-h: 56px;
  --ttb-primary: #FF4500;
  --ttb-cta: #E65100;
  --ttb-ink: #3E2723;
  --ttb-bg: #FFF8F0;
  --ttb-card: #FFFFFF;
  --ttb-muted: #795548;
  --ttb-line: rgba(255, 87, 34, 0.15);
}

* { box-sizing: border-box; }
img.ttb-media {
  max-width: 100%;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  object-position: center;
  display: block;
  vertical-align: middle;
}
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--ttb-ink);
  background: var(--ttb-bg);
  line-height: 1.6;
  padding-bottom: calc(56px + env(safe-area-inset-bottom, 0px));
}

.navbar {
  display: block !important;
  padding: 0 !important;
  position: sticky;
  top: 0;
  z-index: 100;
  background: #fff;
  border-bottom: 2px solid var(--ttb-line);
  box-shadow: 0 2px 12px rgba(255, 69, 0, 0.08);
}
.nav-inner {
  position: relative;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 16px;
  min-height: var(--nav-h);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}
.nav-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--ttb-ink);
  font-weight: 900;
  font-size: 18px;
}
.nav-ic {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--ttb-primary), #FF6D00);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
}
.nav-links {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: #fff;
  flex-direction: column;
  padding: 12px 16px 18px;
  gap: 2px;
  border-bottom: 2px solid var(--ttb-line);
  z-index: 99;
}
.nav-links.is-open { display: flex; }
.nav-links a {
  color: var(--ttb-ink);
  text-decoration: none;
  font-weight: 700;
  padding: 10px 10px;
  border-radius: 8px;
}
.nav-links a:hover { background: var(--ttb-bg); }
.btn-nav {
  display: none;
  padding: 9px 18px;
  border-radius: 999px;
  background: var(--ttb-primary);
  color: #fff !important;
  font-weight: 800;
  text-decoration: none;
  font-size: 14px;
  margin-left: auto;
}
.nav-toggle {
  margin-left: auto;
  width: 44px;
  height: 44px;
  border: none;
  background: var(--ttb-bg);
  border-radius: 10px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}
.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--ttb-primary);
  border-radius: 1px;
}
@media (min-width: 768px) {
  .nav-toggle { display: none; }
  .btn-nav { display: inline-block; margin-left: auto; }
  .nav-links {
    display: flex !important;
    position: static;
    flex-direction: row;
    border: none;
    padding: 0;
    flex: 1;
    justify-content: center;
    gap: 4px;
  }
}

.hero { position: relative; }
.hero-content {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  overflow: hidden;
}
.hero-bg-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: cover;
  object-position: center;
  display: block;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(165deg, rgba(62, 39, 35, 0.78) 0%, rgba(183, 28, 28, 0.55) 45%, rgba(230, 81, 0, 0.45) 100%);
}
.compliance-bar {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 12;
  padding: 10px max(14px, env(safe-area-inset-right, 0px)) 10px max(14px, env(safe-area-inset-left, 0px));
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  color: rgba(255, 255, 255, 0.94);
  font-size: 12px;
  line-height: 1.5;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}
.compliance-bar > span { flex: 1; min-width: 0; }
.compliance-bar i { color: #FFE082; margin-right: 6px; flex-shrink: 0; }
.compliance-x {
  background: none;
  border: none;
  color: #fff;
  font-size: 20px;
  cursor: pointer;
  padding: 0 4px;
  flex-shrink: 0;
}
.hero-body {
  position: relative;
  z-index: 2;
  padding: clamp(56px, 11vh, 92px) 16px 44px;
  max-width: 1140px;
  margin: 0 auto;
}
@media (min-width: 768px) {
  .hero-body { padding-top: clamp(60px, 9vh, 86px); }
}
.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}
.ht {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: #fff;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
}
.hero-h1 {
  margin: 0 0 12px;
  font-size: clamp(28px, 6vw, 46px);
  font-weight: 900;
  color: #fff;
  line-height: 1.18;
}
.hero-h1 em { color: #FFE082; font-style: normal; }
.hero-line2 { font-size: 0.88em; font-weight: 800; }
.hero-sub {
  color: rgba(255, 255, 255, 0.9);
  font-size: clamp(14px, 2.8vw, 17px);
  max-width: 38em;
  margin: 0 0 20px;
}
.hero-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 22px;
}
.btn-hero {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 24px;
  border-radius: 12px;
  font-weight: 800;
  text-decoration: none;
  font-size: 15px;
}
.btn-hero.primary {
  background: #fff;
  color: var(--ttb-cta) !important;
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.2);
}
.btn-hero.ghost {
  background: rgba(255, 255, 255, 0.12);
  color: #fff !important;
  border: 2px solid rgba(255, 255, 255, 0.5);
}
.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
}
.hs-item .hs-n {
  font-size: 26px;
  font-weight: 900;
  color: #fff;
}
.hs-item .hs-l { font-size: 12px; color: rgba(255, 255, 255, 0.75); }

.section { padding: 52px 16px; }
.container { max-width: 1140px; margin: 0 auto; }
.sec-t { text-align: center; margin-bottom: 26px; }
.sec-t.al-left { text-align: left; }
.sec-t h2 {
  margin: 0 0 8px;
  font-size: clamp(22px, 4vw, 30px);
  color: var(--ttb-ink);
}
.sec-t h2 em { color: var(--ttb-primary); font-style: normal; }
.sec-d { margin: 0; color: var(--ttb-muted); font-size: 15px; }

.sec-cond { background: var(--ttb-card); }
.cond-lead {
  max-width: 52em;
  margin: -8px auto 20px;
  font-size: 15px;
  color: #5D4037;
  line-height: 1.65;
  text-align: center;
}
@media (min-width: 768px) {
  .cond-lead { text-align: left; margin-left: 0; margin-right: 0; }
}
.cond-grid {
  display: grid;
  gap: 24px;
  align-items: start;
}
@media (min-width: 768px) {
  .cond-grid { grid-template-columns: 1fr 1fr; align-items: center; }
}
.cond-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.cond-list li {
  display: flex;
  gap: 10px;
  margin-bottom: 14px;
  font-size: 15px;
}
.cond-list i { color: var(--ttb-primary); margin-top: 3px; }
.cond-img-wrap img { border-radius: 14px; border: 1px solid var(--ttb-line); }

.sec-svc { background: var(--ttb-bg); }
.svc-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: 1fr;
}
@media (min-width: 560px) {
  .svc-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 992px) {
  .svc-grid { grid-template-columns: repeat(3, 1fr); }
}
.svc-card {
  background: var(--ttb-card);
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--ttb-line);
  box-shadow: 0 6px 20px rgba(255, 87, 34, 0.07);
}
.svc-img {
  position: relative;
  width: 100%;
  aspect-ratio: 4/3;
  overflow: hidden;
  background: #f5f5f5;
}
.svc-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}
.svc-body { padding: 14px 16px 16px; position: relative; }
.svc-tag {
  position: absolute;
  top: -28px;
  right: 12px;
  background: var(--ttb-primary);
  color: #fff;
  font-size: 11px;
  font-weight: 800;
  padding: 4px 10px;
  border-radius: 999px;
}
.svc-tag.hot { background: #D84315; }
.svc-body h3 { margin: 0 0 6px; font-size: 17px; color: var(--ttb-ink); }
.svc-line {
  margin: 0 0 8px;
  font-size: 13px;
  font-weight: 700;
  color: var(--ttb-ink);
  line-height: 1.45;
}
.svc-more {
  margin: 0 0 12px;
  font-size: 12px;
  color: var(--ttb-muted);
  line-height: 1.55;
}
.svc-go {
  display: inline-block;
  padding: 8px 16px;
  border-radius: 8px;
  background: var(--ttb-primary);
  color: #fff !important;
  font-weight: 800;
  font-size: 13px;
  text-decoration: none;
}
.svc-note {
  margin: 16px 0 0;
  font-size: 13px;
  color: var(--ttb-muted);
}
.svc-note i { margin-right: 6px; color: var(--ttb-primary); }

.sec-flow { background: var(--ttb-card); }
.flow-4 {
  display: grid;
  gap: 14px;
}
@media (min-width: 768px) {
  .flow-4 { grid-template-columns: repeat(4, 1fr); }
}
.fl {
  background: var(--ttb-bg);
  border-radius: 14px;
  padding: 16px;
  border: 1px solid var(--ttb-line);
}
.fl .fn {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: var(--ttb-primary);
  color: #fff;
  font-weight: 900;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 10px;
}
.fl h3 { margin: 0 0 6px; font-size: 15px; }
.fl p { margin: 0; font-size: 14px; color: #5D4037; }

.sec-tick { background: var(--ttb-bg); }
.ticker {
  overflow: hidden;
  border-radius: 12px;
  background: var(--ttb-card);
  border: 1px solid var(--ttb-line);
}
.ticker-inner {
  display: flex;
  gap: 28px;
  width: max-content;
  padding: 14px 0;
  animation: ttb-tick 36s linear infinite;
}
@keyframes ttb-tick {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
.tk-item {
  white-space: nowrap;
  font-weight: 700;
  font-size: 13px;
  color: var(--ttb-ink);
}
.tk-item i { color: var(--ttb-primary); margin-right: 6px; }

.sec-trust {
  position: relative;
  padding: 60px 16px;
  overflow: hidden;
}
.trust-bg {
  position: absolute;
  inset: 0;
  background-image: var(--trust-img);
  background-size: cover;
  background-position: center;
}
.trust-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(62, 39, 35, 0.92), rgba(191, 54, 12, 0.82));
}
.trust-inner { position: relative; z-index: 2; }
.trust-bullets {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 0 auto 22px;
  max-width: 40em;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.92);
  line-height: 1.5;
}
.trust-bullets span {
  display: flex;
  align-items: flex-start;
  gap: 8px;
}
.trust-bullets i { color: #FFE082; margin-top: 2px; flex-shrink: 0; }
.sec-t-light h2 { color: #fff; }
.sec-t-light .sec-d { color: rgba(255, 255, 255, 0.88); }
.trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
}
.tb {
  background: rgba(255, 255, 255, 0.13);
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 14px;
  padding: 20px 24px;
  text-align: center;
  min-width: 130px;
}
.tb span { display: block; font-size: 28px; font-weight: 900; color: #fff; }
.tb small { color: rgba(255, 255, 255, 0.85); font-size: 12px; }

.sec-rev { background: var(--ttb-card); }
.rev-grid {
  display: grid;
  gap: 14px;
}
@media (min-width: 700px) {
  .rev-grid { grid-template-columns: repeat(3, 1fr); }
}
.rev-card {
  background: var(--ttb-bg);
  border-radius: 14px;
  padding: 16px;
  border: 1px solid var(--ttb-line);
}
.rev-h {
  font-weight: 800;
  color: var(--ttb-ink);
  margin-bottom: 8px;
}
.rev-h em {
  display: block;
  font-style: normal;
  font-size: 12px;
  color: var(--ttb-primary);
  margin-top: 4px;
}
.rev-card p { margin: 0; font-size: 14px; color: #5D4037; line-height: 1.65; }

.sec-privacy { background: var(--ttb-bg); }
.priv-grid {
  display: grid;
  gap: 24px;
  align-items: center;
}
@media (min-width: 880px) {
  .priv-grid { grid-template-columns: 1fr 1fr; }
}
.priv-img-wrap img { border-radius: 14px; border: 1px solid var(--ttb-line); }
.priv-lead {
  font-size: 14px;
  color: #5D4037;
  line-height: 1.6;
  margin: 0 0 14px;
}
.priv-ul { list-style: none; padding: 0; margin: 0; }
.priv-ul li {
  display: flex;
  gap: 10px;
  margin-bottom: 12px;
  font-size: 15px;
}
.priv-ul i { color: var(--ttb-primary); margin-top: 3px; }

.sec-faq { background: var(--ttb-card); }
.faq-item {
  border: 1px solid var(--ttb-line);
  border-radius: 12px;
  margin-bottom: 10px;
  overflow: hidden;
  background: var(--ttb-bg);
}
.faq-q {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  border: none;
  background: none;
  font-weight: 800;
  text-align: left;
  cursor: pointer;
  font-size: 15px;
  color: var(--ttb-ink);
}
.faq-q i { transition: transform 0.2s; color: var(--ttb-muted); }
.faq-item.open .faq-q i { transform: rotate(180deg); }
.faq-a {
  display: none;
  padding: 0 16px 14px;
  font-size: 14px;
  color: #5D4037;
  border-top: 1px solid var(--ttb-line);
  margin-top: -4px;
  padding-top: 12px;
}
.faq-item.open .faq-a { display: block; }

.sec-dash { background: var(--ttb-bg); }
.dash-cells {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(2, 1fr);
}
@media (min-width: 768px) {
  .dash-cells { grid-template-columns: repeat(4, 1fr); }
}
.dc {
  background: var(--ttb-card);
  border-radius: 14px;
  padding: 18px;
  text-align: center;
  border: 1px solid var(--ttb-line);
}
.dc span { font-size: 26px; font-weight: 900; color: var(--ttb-primary); display: block; }
.dc small { font-size: 12px; color: var(--ttb-muted); }
.dash-foot {
  margin: 18px 0 0;
  font-size: 13px;
  color: var(--ttb-muted);
  line-height: 1.55;
  text-align: center;
  max-width: 48em;
  margin-left: auto;
  margin-right: auto;
}

.sec-about { background: var(--ttb-card); }
.about-split {
  display: grid;
  gap: 24px;
  align-items: center;
}
@media (min-width: 880px) {
  .about-split { grid-template-columns: 1.1fr 1fr; }
}
.ab-txt { font-size: 15px; color: #5D4037; margin: 0 0 14px; line-height: 1.65; }
.btn-cta-block {
  display: inline-block;
  padding: 12px 22px;
  border-radius: 10px;
  background: var(--ttb-primary);
  color: #fff !important;
  font-weight: 800;
  text-decoration: none;
}
.about-ph img { border-radius: 14px; border: 1px solid var(--ttb-line); }

.sec-contact { background: var(--ttb-bg); }
.card-contact {
  max-width: 480px;
  margin: 0 auto;
  background: var(--ttb-card);
  border-radius: 16px;
  padding: 22px;
  border: 2px solid var(--ttb-line);
  box-shadow: 0 8px 28px rgba(255, 87, 34, 0.1);
}
.cc-name {
  margin: 0 0 10px;
  font-weight: 900;
  font-size: 17px;
  color: var(--ttb-ink);
}
.cc-intro {
  margin: 0 0 16px;
  font-size: 13px;
  color: #5D4037;
  line-height: 1.55;
}
.cc-name i { color: var(--ttb-primary); margin-right: 8px; }
.cc-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  border-top: 1px solid var(--ttb-line);
}
.cc-row:first-of-type { border-top: none; padding-top: 0; }
.cc-row > span:first-child {
  width: 48px;
  font-weight: 800;
  font-size: 13px;
  color: var(--ttb-muted);
  flex-shrink: 0;
}
.cc-act {
  flex: 1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}
.cc-tel { color: var(--ttb-primary); font-weight: 800; text-decoration: none; }
.cc-copy {
  border: none;
  background: var(--ttb-primary);
  color: #fff;
  padding: 7px 14px;
  border-radius: 8px;
  font-weight: 800;
  font-size: 12px;
  cursor: pointer;
}
.cc-copy.linktel {
  text-decoration: none;
  display: inline-block;
}
.cc-note {
  margin: 16px 0 0;
  text-align: center;
  font-size: 13px;
  color: var(--ttb-muted);
}
.cc-note i { margin-right: 6px; color: var(--ttb-primary); }

.footer {
  padding: 28px 16px 32px;
  background: #3E2723;
  color: rgba(255, 255, 255, 0.88);
  font-size: 13px;
  text-align: center;
}
.footer p { margin: 0 0 10px; }
.ft-sub { font-size: 12px; opacity: 0.9; line-height: 1.55; max-width: 40em; margin-left: auto; margin-right: auto; }
.ft-a a { color: #FFCC80; text-decoration: none; margin: 0 4px; }
.footer-tech { font-size: 12px; opacity: 0.85; margin-top: 12px !important; }

.float-bottom {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 90;
  display: flex;
  padding-bottom: env(safe-area-inset-bottom, 0px);
  border-top: 2px solid var(--ttb-line);
  background: #fff;
}
.fb-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px;
  font-weight: 900;
  text-decoration: none;
  font-size: 15px;
}
.fb-tel { background: var(--ttb-bg); color: var(--ttb-ink) !important; }
.fb-wx { background: var(--ttb-primary); color: #fff !important; }

.f4-top {
  position: fixed;
  right: max(14px, env(safe-area-inset-right, 0px));
  bottom: calc(58px + env(safe-area-inset-bottom, 0px));
  z-index: 10050;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  border: none;
  background: var(--ttb-primary);
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  box-shadow: 0 6px 22px rgba(230, 81, 0, 0.35);
}
@media (min-width: 768px) {
  .float-bottom { display: none; }
  body { padding-bottom: 0; }
  .f4-top {
    bottom: max(22px, env(safe-area-inset-bottom, 0px));
  }
}