/* roulang page: index */
:root {
  --bg-deep: #07040f;
  --bg-body: #0b0718;
  --bg-panel: #120c24;
  --bg-card: #171031;
  --bg-elevation: #201542;
  --text-hi: #f5f0ff;
  --text-body: #cfc3e8;
  --text-low: #9b8cb8;
  --brand: #9d5cff;
  --brand-weak: #7c3aed;
  --neon: #22d9e2;
  --danger: #ff5f7e;
  --line: rgba(255, 255, 255, .08);
  --radius-xl: 24px;
  --radius-lg: 18px;
  --radius-md: 12px;
  --shadow-card: 0 20px 50px rgba(0, 0, 0, .38);
  --shadow-neon: 0 0 24px rgba(157, 92, 255, .24), 0 8px 30px rgba(0, 0, 0, .45);
  --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;
}
*,
*::before,
*::after {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  font-family: var(--font-main);
  background: radial-gradient(circle at 80% 0%, rgba(124, 58, 237, .13), transparent 30%), radial-gradient(circle at 10% 30%, rgba(34, 217, 226, .07), transparent 22%), var(--bg-body);
  color: var(--text-body);
  font-size: 15px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}
body.page-home {
  overflow-x: hidden;
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: inherit;
  text-decoration: none;
}
ul,
ol,
dl,
p,
h1,
h2,
h3,
h4,
figure {
  margin: 0;
  padding: 0;
}
button,
input,
textarea {
  font-family: inherit;
}
a,
button,
summary {
  transition: all .25s ease;
}
a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: 3px;
}
::selection {
  background: rgba(157, 92, 255, .35);
  color: #fff;
}
.wrap {
  width: min(1200px, 100% - 48px);
  margin: 0 auto;
}
.section {
  position: relative;
  padding: 104px 0;
}
.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 14px;
  border-radius: 999px;
  border: 1px solid rgba(157, 92, 255, .28);
  background: rgba(157, 92, 255, .08);
  color: #d9bcff;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .02em;
  margin-bottom: 18px;
}
.section-kicker::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: var(--neon);
  box-shadow: 0 0 12px rgba(34, 217, 226, .8);
}
.section-title {
  font-size: clamp(28px, 4vw, 38px);
  line-height: 1.25;
  font-weight: 800;
  letter-spacing: -.02em;
  color: var(--text-hi);
  margin-bottom: 12px;
}
.section-desc {
  font-size: 16px;
  color: var(--text-low);
  max-width: 740px;
  line-height: 1.8;
}
.grad-text {
  background: linear-gradient(92deg, #d9a8ff 0%, #6be7f0 92%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  display: inline-block;
}
.neon-line {
  height: 1px;
  background: linear-gradient(90deg, rgba(157, 92, 255, 0), rgba(157, 92, 255, .65), rgba(34, 217, 226, .8), rgba(34, 217, 226, 0));
  border: 0;
}

/* header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 99;
  background: rgba(7, 4, 15, .82);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(255, 255, 255, .05);
}
.site-header::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(157, 92, 255, .7), rgba(34, 217, 226, .8), transparent);
  pointer-events: none;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--text-hi);
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -.01em;
}
.brand-pill {
  width: 36px;
  height: 36px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: linear-gradient(140deg, #7c3aed, #1ab3bd);
  color: #fff;
  font-size: 20px;
  box-shadow: 0 0 26px rgba(157, 92, 255, .34);
}
.brand-name {
  display: flex;
  align-items: center;
  gap: 8px;
}
.brand-flag {
  background: rgba(157, 92, 255, .18);
  border: 1px solid rgba(157, 92, 255, .24);
  color: #d3b2ff;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 600;
  padding: 2px 7px;
  letter-spacing: .04em;
}
.nav-list {
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 9px 17px;
  border-radius: 999px;
  color: #c5b7df;
  font-size: 15px;
  font-weight: 500;
}
.nav-link:hover {
  color: #fff;
  background: rgba(255, 255, 255, .04);
}
.nav-link.active {
  color: #efe4ff;
  background: rgba(157, 92, 255, .1);
}
.nav-link.active::after {
  content: "";
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: -11px;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--brand), var(--neon));
  box-shadow: 0 0 14px rgba(157, 92, 255, .55);
}
.header-cta,
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 999px;
  font-weight: 700;
  cursor: pointer;
  border: 0;
  line-height: 1;
  transition: all .24s ease;
  white-space: nowrap;
}
.header-cta {
  min-width: 132px;
  height: 40px;
  padding: 0 18px;
  background: linear-gradient(100deg, #9d5cff, #22d9e2);
  color: #0c051d !important;
  font-size: 14px;
  box-shadow: 0 0 20px rgba(157, 92, 255, .16);
}
.header-cta:hover,
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 34px rgba(157, 92, 255, .36), 0 0 24px rgba(34, 217, 226, .2);
}
.btn-primary {
  background: linear-gradient(100deg, #a86aff, #2be0e8);
  color: #0c051d !important;
  font-size: 15px;
  height: 52px;
  padding: 0 30px;
  box-shadow: 0 0 28px rgba(157, 92, 255, .22);
}
.btn-ghost {
  background: rgba(255, 255, 255, .02);
  border: 1px solid rgba(34, 217, 226, .5);
  color: #dffbff;
  font-size: 15px;
  height: 52px;
  padding: 0 30px;
}
.btn-ghost:hover {
  border-color: #6bf1f6;
  background: rgba(34, 217, 226, .08);
  box-shadow: 0 0 20px rgba(34, 217, 226, .16);
  transform: translateY(-2px);
}
.mobile-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, .1);
  background: rgba(255, 255, 255, .04);
  color: #fff;
  align-items: center;
  justify-content: center;
}
.mobile-close {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, .12);
  background: rgba(255, 255, 255, .04);
  color: #fff;
}
.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 100;
  background: rgba(7, 4, 15, .96);
  backdrop-filter: blur(26px);
  padding: 24px;
}
.mobile-menu.open {
  display: flex;
  flex-direction: column;
}
.mobile-menu-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.mobile-menu-nav {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 44px;
}
.mobile-menu-nav a {
  padding: 14px 18px;
  border-radius: 16px;
  font-size: 18px;
  color: #ece3ff;
  background: rgba(255, 255, 255, .03);
  font-weight: 600;
}
.mobile-menu-nav a.active {
  background: linear-gradient(90deg, rgba(157, 92, 255, .2), rgba(34, 217, 226, .1));
  color: #fff;
}
.mobile-menu-nav a[data-slug] {
  border-left: 2px solid transparent;
}
.mobile-menu-nav a.active[data-slug] {
  border-left-color: var(--neon);
}
.mobile-menu .menu-cta {
  margin-top: auto;
}
.mobile-menu .menu-cta .btn-primary {
  width: 100%;
}

/* hero */
.hero {
  position: relative;
  min-height: calc(100vh - 76px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 64px 0 80px;
  overflow: hidden;
  text-align: center;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-1.png') center 15% / cover no-repeat;
  opacity: .55;
}
.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(7, 4, 15, .72) 0%, rgba(7, 4, 15, .38) 35%, rgba(7, 4, 15, .76) 74%, var(--bg-deep) 100%);
}
.hero-fog {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(1px 1px at 20% 24%, rgba(255, 255, 255, .5), transparent 55%),
    radial-gradient(1px 1px at 72% 18%, rgba(255, 255, 255, .4), transparent 55%),
    radial-gradient(1.5px 1.5px at 44% 38%, rgba(190, 150, 255, .35), transparent 60%),
    radial-gradient(1px 1px at 88% 42%, rgba(120, 240, 255, .25), transparent 55%);
  pointer-events: none;
  animation: starFloat 16s infinite alternate ease-in-out;
}
@keyframes starFloat {
  0% {
    transform: translateY(0);
    opacity: .55;
  }
  100% {
    transform: translateY(-18px);
    opacity: .95;
  }
}
.hero-content {
  position: relative;
  z-index: 2;
  width: 100%;
}
.hero-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  margin-bottom: 22px;
  border-radius: 999px;
  background: rgba(157, 92, 255, .12);
  border: 1px solid rgba(157, 92, 255, .25);
  color: #e2cdff;
  font-size: 13px;
}
.hero-chip span {
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: #5ef0f5;
  box-shadow: 0 0 10px #5ef0f5;
}
.hero h1 {
  max-width: 900px;
  margin: 0 auto 20px;
  font-size: clamp(34px, 6.4vw, 64px);
  font-weight: 900;
  letter-spacing: -.03em;
  line-height: 1.22;
  color: #fff;
  text-wrap: balance;
}
.hero-sub {
  max-width: 680px;
  margin: 0 auto 36px;
  font-size: clamp(16px, 2.2vw, 19px);
  color: var(--text-body);
  line-height: 1.8;
}
.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}
.hero-actions .btn-primary,
.hero-actions .btn-ghost {
  min-width: 158px;
}
.h-feed {
  position: relative;
  z-index: 3;
  width: min(920px, 100% - 32px);
  margin: 58px auto 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.h-mini {
  position: relative;
  aspect-ratio: 9 / 15;
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, .13);
  box-shadow: 0 24px 60px rgba(0, 0, 0, .48), 0 0 0 1px rgba(157, 92, 255, .05);
}
.h-mini .hc-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.h-mini::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(200deg, rgba(7, 4, 15, 0) 20%, rgba(7, 4, 15, .4) 55%, rgba(7, 4, 15, .92) 100%);
}
.h-mini-info {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2;
  padding: 18px;
  text-align: left;
  color: #fff;
}
.h-mini-tag {
  display: inline-block;
  background: rgba(34, 217, 226, .16);
  border: 1px solid rgba(34, 217, 226, .3);
  color: #a5fbfe;
  padding: 3px 9px;
  border-radius: 999px;
  font-size: 11px;
  margin-bottom: 10px;
}
.h-mini h3 {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 5px;
}
.h-mini p {
  font-size: 13px;
  color: rgba(255, 255, 255, .72);
}

/* service tile section */
.service-section {
  background: linear-gradient(180deg, rgba(7, 4, 15, 0), rgba(18, 12, 36, .7), transparent);
}
.tile-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 34px;
}
.tile-card {
  position: relative;
  height: 520px;
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, .1);
  background: var(--bg-card);
  box-shadow: 0 16px 40px rgba(0, 0, 0, .24);
}
.tile-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  inset: 0;
  transition: transform .6s ease;
}
.tile-card:hover .tile-media img {
  transform: scale(1.06);
}
.tile-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(7, 4, 15, .16) 0%, rgba(7, 4, 15, .56) 68%, rgba(7, 4, 15, .93) 100%);
}
.tile-tag {
  position: absolute;
  left: 16px;
  top: 16px;
  z-index: 2;
  background: rgba(7, 4, 15, .4);
  border: 1px solid rgba(255, 255, 255, .18);
  backdrop-filter: blur(8px);
  color: #fff;
  border-radius: 999px;
  font-size: 12px;
  padding: 4px 11px;
}
.tile-play {
  position: absolute;
  left: 50%;
  top: 38%;
  transform: translate(-50%, -50%);
  width: 48px;
  height: 48px;
  border-radius: 999px;
  background: rgba(255, 255, 255, .16);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, .22);
  color: #fff;
  display: grid;
  place-items: center;
  opacity: 0;
  transition: all .3s ease;
  z-index: 2;
}
.tile-card:hover .tile-play {
  opacity: 1;
}
.tile-content {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2;
  padding: 20px;
  color: #fff;
}
.tile-content h3 {
  font-size: 18px;
  font-weight: 800;
  margin-bottom: 6px;
}
.tile-content p {
  color: rgba(255, 255, 255, .75);
  font-size: 13.5px;
  line-height: 1.7;
}
.tile-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
  color: rgba(255, 255, 255, .52);
  font-size: 12px;
}

/* why section */
.why-section .g-head {
  text-align: center;
}
.g-head {
  margin-bottom: 40px;
}
.g-head.center {
  text-align: center;
}
.g-head.center .section-desc {
  margin: 0 auto;
}
.why-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.why-items {
  display: grid;
  gap: 26px;
}
.why-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px;
  border-radius: 18px;
  background: rgba(255, 255, 255, .025);
  border: 1px solid rgba(255, 255, 255, .06);
  transition: all .3s ease;
}
.why-item:hover {
  border-color: rgba(157, 92, 255, .3);
  background: rgba(157, 92, 255, .06);
  transform: translateY(-2px);
}
.why-num {
  width: 36px;
  height: 36px;
  flex: 0 0 36px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: rgba(157, 92, 255, .15);
  border: 1px solid rgba(157, 92, 255, .2);
  color: #e4c8ff;
  font-weight: 800;
  font-size: 14px;
}
.why-num.green {
  background: rgba(34, 217, 226, .12);
  border-color: rgba(34, 217, 226, .24);
  color: #a6fbff;
}
.why-copy h3 {
  color: var(--text-hi);
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 5px;
}
.why-copy p {
  color: var(--text-low);
  font-size: 14.5px;
  line-height: 1.8;
}
.entry-panel {
  position: relative;
  border-radius: 24px;
  border: 1px solid rgba(157, 92, 255, .22);
  background: linear-gradient(160deg, rgba(157, 92, 255, .13), rgba(18, 12, 36, .9) 44%);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  padding: 28px;
}
.entry-panel::before {
  content: "";
  position: absolute;
  width: 180px;
  height: 180px;
  right: -60px;
  top: -60px;
  background: rgba(34, 217, 226, .08);
  filter: blur(10px);
  border-radius: 999px;
}
.entry-panel-title {
  color: #fff;
  font-weight: 800;
  font-size: 20px;
  margin-bottom: 4px;
}
.entry-panel-sub {
  color: #b4a6d3;
  font-size: 14px;
  margin-bottom: 20px;
}
.quick-check {
  display: grid;
  gap: 12px;
}
.check-row {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(255, 255, 255, .04);
  border: 1px solid rgba(255, 255, 255, .06);
  border-radius: 14px;
  padding: 13px 14px;
}
.check-row .ico {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background: rgba(34, 217, 226, .12);
  color: #82f6fb;
  font-size: 16px;
}
.check-row p {
  color: #d8cef2;
  font-size: 14px;
  line-height: 1.6;
}
.check-row p b {
  color: #fff;
  font-weight: 600;
}

/* review */
.review-section {
  background: rgba(18, 12, 36, .3);
  border-top: 1px solid rgba(255, 255, 255, .04);
  border-bottom: 1px solid rgba(255, 255, 255, .04);
}
.review-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-top: 30px;
}
.review-card {
  padding: 22px;
  border-radius: 20px;
  background: rgba(255, 255, 255, .025);
  border: 1px solid rgba(255, 255, 255, .08);
  box-shadow: 0 12px 30px rgba(0, 0, 0, .12);
}
.review-card:hover {
  background: rgba(255, 255, 255, .04);
}
.review-avatar {
  width: 44px;
  height: 44px;
  border-radius: 999px;
  display: grid;
  place-items: center;
  color: #fff;
  font-weight: 700;
  background: linear-gradient(135deg, #7c3aed, #9436d8);
}
.review-card:nth-child(2) .review-avatar {
  background: linear-gradient(135deg, #1a8e9c, #29c9b6);
}
.review-card:nth-child(3) .review-avatar {
  background: linear-gradient(135deg, #8f3bff, #1fd1c0);
}
.review-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}
.review-name {
  color: var(--text-hi);
  font-weight: 700;
  font-size: 15px;
}
.review-star {
  color: #ffcf66;
  font-size: 13px;
  letter-spacing: 2px;
}
.review-card p {
  color: #c8bce3;
  font-size: 14px;
  line-height: 1.85;
}

/* CTA panel */
.cta-section {}
.cta-panel {
  position: relative;
  overflow: hidden;
  border-radius: 28px;
  border: 1px solid rgba(157, 92, 255, .25);
  text-align: center;
  padding: 84px 36px;
  background:
    linear-gradient(180deg, rgba(7, 4, 15, .14), rgba(7, 4, 15, .78) 85%),
    url('/assets/images/backpic/back-2.png') center / cover no-repeat;
}
.cta-panel::before {
  content: "";
  position: absolute;
  width: 400px;
  height: 400px;
  border-radius: 999px;
  background: rgba(157, 92, 255, .18);
  filter: blur(68px);
  left: 50%;
  top: -50%;
  transform: translateX(-50%);
  pointer-events: none;
}
.cta-panel h2 {
  position: relative;
  font-size: clamp(30px, 5vw, 50px);
  color: #fff;
  font-weight: 900;
  letter-spacing: -.02em;
  margin-bottom: 14px;
}
.cta-panel p {
  position: relative;
  max-width: 600px;
  margin: 0 auto 28px;
  color: rgba(255, 255, 255, .75);
  font-size: 16px;
}
.cta-panel .btn-primary {
  position: relative;
  min-width: 200px;
  height: 56px;
  font-size: 16px;
}
.trust-row {
  position: relative;
  margin-top: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
}
.trust-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(7, 4, 15, .47);
  border: 1px solid rgba(255, 255, 255, .08);
  padding: 7px 13px;
  border-radius: 999px;
  color: rgba(255, 255, 255, .76);
  font-size: 12.5px;
  backdrop-filter: blur(6px);
}
.trust-item i {
  color: #56f2f3;
  font-style: normal;
}

/* news cms */
.news-section {
  background: rgba(7, 4, 15, .45);
}
.news-layout {
  display: grid;
  grid-template-columns: 1.45fr .8fr;
  gap: 46px;
  align-items: flex-start;
}
.news-list {
  margin-top: 12px;
  border-top: 1px solid rgba(255, 255, 255, .06);
}
.news-item {
  display: block;
  padding: 22px 4px;
  border-bottom: 1px solid rgba(255, 255, 255, .06);
  transition: all .24s ease;
}
.news-item:hover {
  padding-left: 12px;
  padding-right: 12px;
  background: rgba(255, 255, 255, .02);
  border-radius: 14px;
}
.news-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: var(--text-low);
  margin-bottom: 8px;
}
.news-cat {
  color: #c5a7ff;
  background: rgba(157, 92, 255, .09);
  border: 1px solid rgba(157, 92, 255, .2);
  border-radius: 999px;
  padding: 2px 10px;
  font-size: 12px;
}
.news-body h4 {
  color: var(--text-hi);
  font-size: 18px;
  line-height: 1.5;
  font-weight: 700;
  margin-bottom: 5px;
}
.news-body h4 a:hover {
  color: #e0cbff;
}
.news-body p {
  color: var(--text-low);
  font-size: 14px;
  line-height: 1.8;
  margin-bottom: 8px;
}
.news-more {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: var(--neon);
  font-size: 13px;
  font-weight: 600;
}
.news-more:hover {
  color: #8ffff4;
  letter-spacing: .02em;
}
.news-empty {
  border-bottom: 1px solid rgba(255, 255, 255, .06);
  padding: 38px 0;
  color: var(--text-low);
  font-size: 16px;
}
.news-aside {
  position: sticky;
  top: 102px;
}
.info-side-card {
  border-radius: 22px;
  border: 1px solid rgba(157, 92, 255, .17);
  background: linear-gradient(160deg, rgba(157, 92, 255, .1), rgba(18, 12, 36, .7) 58%);
  padding: 26px;
  box-shadow: var(--shadow-card);
}
.info-side-card h3 {
  color: #fff;
  font-size: 20px;
  font-weight: 800;
  line-height: 1.4;
  margin-bottom: 8px;
}
.info-side-card p {
  color: #bcadd9;
  font-size: 14px;
  margin-bottom: 20px;
}
.info-side-link {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.side-link {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: rgba(7, 4, 15, .3);
  border: 1px solid rgba(255, 255, 255, .08);
  border-radius: 14px;
  color: #dfd2f6;
  font-size: 14px;
  font-weight: 600;
}
.side-link:hover {
  border-color: rgba(157, 92, 255, .36);
  background: rgba(157, 92, 255, .08);
  color: #fff;
}

/* faq */
.faq-block {
  max-width: 920px;
  margin: 0 auto;
}
.faq-item {
  border-bottom: 1px solid rgba(255, 255, 255, .08);
}
.faq-item summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 24px 4px;
  color: var(--text-hi);
  font-size: 17px;
  font-weight: 650;
  transition: color .2s;
}
.faq-item summary::-webkit-details-marker {
  display: none;
}
.faq-item summary::before {
  content: "+";
  display: grid;
  place-items: center;
  flex: 0 0 28px;
  width: 28px;
  height: 28px;
  border-radius: 9px;
  background: rgba(157, 92, 255, .12);
  border: 1px solid rgba(157, 92, 255, .2);
  color: #e5cbff;
  font-weight: 700;
  font-size: 18px;
  transition: all .25s;
}
.faq-item[open] summary {
  color: #fff;
}
.faq-item[open] summary::before {
  content: "−";
  background: rgba(34, 217, 226, .14);
  border-color: rgba(34, 217, 226, .3);
  color: #91f6ff;
  transform: rotate(180deg);
}
.faq-item p {
  padding: 0 4px 24px 42px;
  color: var(--text-low);
  font-size: 15px;
  line-height: 1.85;
}

/* footer */
.site-footer {
  background: rgba(7, 4, 15, .84);
  border-top: 1px solid rgba(255, 255, 255, .06);
  padding: 64px 0 30px;
}
.footer-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  padding-bottom: 34px;
}
.footer-brand {
  color: #fff;
  font-size: 21px;
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 10px;
}
.footer-brand .dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: linear-gradient(90deg, #9d5cff, #22d9e2);
}
.footer-note {
  color: var(--text-low);
  font-size: 14px;
  max-width: 480px;
  line-height: 1.8;
}
.footer-nav {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 28px;
  padding: 18px 0;
  border-top: 1px solid rgba(255, 255, 255, .06);
  border-bottom: 1px solid rgba(255, 255, 255, .06);
}
.footer-nav a {
  color: #bdb0d7;
  font-size: 14px;
}
.footer-nav a:hover {
  color: #fff;
}
.footer-nav span {
  color: #6e628b;
}
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  padding-top: 22px;
  color: #75668f;
  font-size: 13px;
}
.footer-bottom a {
  color: #9986b5;
}
.footer-bottom a:hover {
  color: #d2b9f5;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
  html {
    scroll-behavior: auto;
  }
}

@media (max-width: 1023px) {
  .section {
    padding: 80px 0;
  }
  .nav-list,
  .header-cta {
    display: none;
  }
  .mobile-toggle {
    display: inline-flex;
  }
  .tile-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .tile-card {
    height: 440px;
  }
  .why-layout {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .review-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .news-layout {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .news-aside {
    position: static;
  }
  .cta-panel {
    padding: 56px 22px;
  }
}

@media (max-width: 767px) {
  .wrap {
    width: calc(100% - 32px);
  }
  .section {
    padding: 64px 0;
  }
  .hero {
    min-height: auto;
    padding: 68px 0 60px;
  }
  .hero .btn-primary,
  .hero .btn-ghost {
    min-width: 146px;
    height: 48px;
  }
  .h-feed {
    display: none;
  }
  .service-section .section-desc,
  .why-section .section-desc {
    font-size: 15px;
  }
  .tile-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin: 26px -12px 0;
    padding: 4px 12px 16px;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
  }
  .tile-card {
    height: 420px;
    min-width: 220px;
    scroll-snap-align: start;
  }
  .review-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .why-item {
    padding: 16px;
  }
  .cta-panel {
    padding: 42px 20px;
  }
  .cta-panel h2 {
    font-size: 30px;
  }
  .trust-row {
    gap: 8px;
  }
  .news-item {
    padding: 20px 0;
  }
  .news-item:hover {
    padding-left: 0;
    padding-right: 0;
  }
  .site-footer {
    padding: 42px 0 22px;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* roulang page: article */
:root{
    --bg:#0b0514;
    --bg-card:#120a1f;
    --bg-card-hover:#1a0f2e;
    --text-main:#e6e1f2;
    --text-sub:#9a8fb8;
    --text-weak:#6f6587;
    --primary:#a78bfa;
    --primary-rgb:167,139,250;
    --secondary:#22d3ee;
    --secondary-rgb:34,211,238;
    --border:rgba(255,255,255,.08);
    --radius:18px;
    --radius-small:10px;
    --shadow-black:rgba(0,0,0,.4);
  }
  *{box-sizing:border-box;margin:0;padding:0}
  html{scroll-behavior:smooth}
  body{
    background:var(--bg);
    color:var(--text-main);
    font-family:'PingFang SC','Microsoft YaHei','Noto Sans SC',system-ui,-apple-system,sans-serif;
    font-size:15px;
    line-height:1.8;
    min-height:100vh;
    -webkit-font-smoothing:antialiased;
  }
  a{color:inherit;text-decoration:none;transition:color .25s ease}
  img{max-width:100%;height:auto;display:block}
  .wrap{max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
  .no-scrollbar::-webkit-scrollbar{display:none}
  .no-scrollbar{-ms-overflow-style:none;scrollbar-width:none}

  /* 星空点缀 */
  .star-field{
    position:fixed;
    inset:0;
    z-index:0;
    pointer-events:none;
    overflow:hidden;
  }
  .star-field::before,.star-field::after{
    content:'';
    position:absolute;
    width:2px;
    height:2px;
    border-radius:50%;
    background:rgba(255,255,255,.35);
  }
  @keyframes driftGlow{
    0%,100%{opacity:.4;transform:translateY(0) scale(1)}
    50%{opacity:.85;transform:translateY(-16px) scale(1.3)}
  }

  /* 站点头部 */
  .site-header{
    position:sticky;
    top:0;
    z-index:100;
    background:rgba(11,5,20,.88);
    backdrop-filter:blur(16px);
    -webkit-backdrop-filter:blur(16px);
    border-bottom:1px solid transparent;
    border-image:linear-gradient(90deg,var(--primary),var(--secondary)) 1;
  }
  .header-inner{
    height:72px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
  }
  .brand{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:900;letter-spacing:.5px;color:#fff}
  .brand .dot{
    width:10px;height:10px;border-radius:50%;
    background:linear-gradient(135deg,var(--primary),var(--secondary));
    box-shadow:0 0 12px rgba(167,139,250,.7);
    flex:0 0 auto;
  }
  .brand .badge{
    font-size:11px;
    font-weight:600;
    line-height:1.3;
    padding:3px 8px;
    border:1px solid rgba(167,139,250,.45);
    border-radius:6px;
    color:var(--primary);
    background:rgba(167,139,250,.08);
    letter-spacing:1px;
    margin-left:4px;
  }
  .nav-list{display:flex;align-items:center;gap:30px;list-style:none}
  .nav-link{
    position:relative;
    font-size:15px;
    color:var(--text-sub);
    padding:4px 2px;
    font-weight:500;
    letter-spacing:.3px;
    transition:color .25s ease;
  }
  .nav-link::after{
    content:'';
    position:absolute;
    left:0;bottom:-4px;
    width:0;height:2px;
    background:linear-gradient(90deg,var(--primary),var(--secondary));
    border-radius:2px;
    transition:width .3s ease;
  }
  .nav-link:hover{color:#efe7ff}
  .nav-link:hover::after{width:100%}
  .nav-link.active{color:#fff}
  .nav-link.active::after{width:100%;box-shadow:0 0 8px rgba(167,139,250,.6)}
  .header-right{display:flex;align-items:center;gap:12px}
  .btn-primary{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    padding:10px 22px;
    border-radius:50px;
    font-size:14px;
    font-weight:600;
    color:#fff;
    background:linear-gradient(135deg,rgba(167,139,250,.28),rgba(34,211,238,.22));
    border:1px solid rgba(167,139,250,.5);
    box-shadow:0 0 16px rgba(167,139,250,.16);
    letter-spacing:.4px;
    transition:all .3s ease;
  }
  .btn-primary:hover{
    background:linear-gradient(135deg,rgba(167,139,250,.42),rgba(34,211,238,.32));
    border-color:rgba(167,139,250,.85);
    box-shadow:0 0 26px rgba(167,139,250,.35);
    transform:translateY(-1px);
  }
  .btn-primary:active{transform:scale(.98)}
  .btn-outline{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    padding:10px 22px;
    border-radius:50px;
    font-size:14px;
    font-weight:600;
    color:#e6e1f2;
    background:transparent;
    border:1px solid var(--secondary);
    letter-spacing:.4px;
    transition:all .3s ease;
  }
  .btn-outline:hover{
    background:rgba(34,211,238,.08);
    border-color:#67e8f9;
    color:#fff;
    box-shadow:0 0 14px rgba(34,211,238,.2);
    transform:translateY(-1px);
  }
  .btn-outline:active{transform:scale(.98)}

  /* 汉堡 */
  .burger{
    display:none;
    flex-direction:column;
    justify-content:center;
    align-items:center;
    gap:5px;
    width:40px;height:40px;
    cursor:pointer;
    border-radius:10px;
    border:1px solid var(--border);
    background:rgba(255,255,255,.03);
    z-index:120;
  }
  .burger span{
    display:block;width:18px;height:2px;
    background:var(--text-main);
    border-radius:4px;
    transition:all .3s ease;
  }
  .burger.open span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
  .burger.open span:nth-child(2){opacity:0}
  .burger.open span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}

  .mobile-nav{
    position:fixed;
    top:0;right:0;
    width:100%;
    height:100vh;
    background:rgba(6,2,14,.95);
    backdrop-filter:blur(24px);
    z-index:110;
    display:flex;
    flex-direction:column;
    justify-content:center;
    padding:0 32px;
    opacity:0;
    visibility:hidden;
    transition:opacity .3s ease,visibility .3s;
    border:none;
  }
  .mobile-nav.open{opacity:1;visibility:visible}
  .mobile-nav .drawer-close{
    position:absolute;
    top:20px;right:22px;
    width:40px;height:40px;
    border-radius:10px;
    background:rgba(255,255,255,.06);
    border:1px solid var(--border);
    color:#fff;
    font-size:20px;
    font-weight:600;
    cursor:pointer;
    display:flex;
    align-items:center;
    justify-content:center;
  }
  .mobile-nav-link{
    font-size:20px;
    font-weight:700;
    color:var(--text-main);
    padding:14px 0;
    border-bottom:1px solid rgba(255,255,255,.06);
    transition:all .25s;
  }
  .mobile-nav-link:hover{color:var(--secondary);padding-left:8px}
  .mobile-nav-link.active{color:var(--primary)}
  .mobile-cta{margin-top:22px;display:flex;align-items:center;justify-content:center}

  /* 页脚 */
  .site-footer{
    background:rgba(9,4,17,.9);
    border-top:1px solid var(--border);
    padding:40px 0 24px;
    margin-top:60px;
  }
  .footer-head{display:flex;flex-direction:column;gap:8px;padding-bottom:24px;border-bottom:1px solid rgba(255,255,255,.04)}
  .footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:#fff}
  .footer-brand .dot{width:8px;height:8px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--secondary));box-shadow:0 0 8px rgba(167,139,250,.6)}
  .footer-note{color:var(--text-weak);font-size:13px;line-height:1.7;max-width:600px}
  .footer-nav{display:flex;flex-wrap:wrap;align-items:center;gap:6px 18px;padding:20px 0 14px;color:var(--text-weak);font-size:13px;border-bottom:1px solid rgba(255,255,255,.04)}
  .footer-nav a{transition:color .25s}
  .footer-nav a:hover{color:var(--secondary)}
  .footer-nav a.active{color:var(--text-main)}
  .footer-nav .sep{color:rgba(255,255,255,.14)}
  .footer-bottom{display:flex;flex-wrap:wrap;gap:8px 16px;justify-content:space-between;align-items:center;padding-top:14px;font-size:12px;color:rgba(255,255,255,.28)}
  .footer-bottom a{color:rgba(255,255,255,.28);transition:color .25s}
  .footer-bottom a:hover{color:var(--secondary)}

  /* 文章页 */
  .article-wrapper{
    background:var(--bg);
    position:relative;
  }
  .article-layout{
    max-width:1200px;
    margin:0 auto;
    padding:44px 24px 60px;
    display:flex;
    gap:44px;
    align-items:flex-start;
  }
  .article-main{
    flex:1;
    min-width:0;
  }
  .article-breadcrumb{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    gap:4px 8px;
    font-size:13px;
    color:var(--text-weak);
    margin-bottom:28px;
  }
  .article-breadcrumb a{
    color:var(--text-sub);
    transition:color .25s;
    display:inline-flex;
    align-items:center;
    gap:6px;
  }
  .article-breadcrumb a:hover{color:var(--secondary)}
  .article-breadcrumb .crumb-link{color:var(--text-sub)}
  .article-breadcrumb .crumb-current{color:var(--text-weak)}
  .crumb-arrow{opacity:.5}
  .article-card{
    display:flex;
    flex-direction:column;
    gap:24px;
  }
  .article-title-wrap{display:flex;flex-direction:column;gap:12px;position:relative}
  .article-cat-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
  .article-cat-badge{
    display:inline-flex;
    align-items:center;
    gap:6px;
    font-size:12px;
    font-weight:600;
    padding:4px 14px;
    border-radius:100px;
    color:var(--primary);
    background:rgba(167,139,250,.12);
    border:1px solid rgba(167,139,250,.28);
  }
  .article-meta{
    display:flex;
    flex-wrap:wrap;
    gap:6px 18px;
    font-size:13px;
    color:var(--text-weak);
    font-weight:400;
  }
  .article-meta .dot-sep{opacity:.5}
  .article-h1{
    font-size:32px;
    line-height:1.35;
    font-weight:800;
    color:#fff;
    letter-spacing:.4px;
    margin:0;
  }
  .article-thumbnail{
    width:100%;
    aspect-ratio:16/5.4;
    border-radius:18px;
    overflow:hidden;
    border:1px solid var(--border);
    background:rgba(255,255,255,.02);
    position:relative;
    max-height:320px;
  }
  .article-thumbnail img{width:100%;height:100%;object-fit:cover}
  .article-body{
    max-width:760px;
    width:100%;
    margin:0 auto;
    font-size:16px;
    line-height:1.9;
    color:#d5cede;
    display:flex;
    flex-direction:column;
    gap:0;
  }
  .article-body-wrap{max-width:820px;margin:0 auto;width:100%}
  .article-state{
    border:1px solid var(--border);
    background:rgba(255,255,255,.02);
    border-radius:var(--radius);
    padding:28px 32px;
    text-align:center;
    color:var(--text-weak);
    font-size:15px;
    display:flex;
    flex-direction:column;
    gap:16px;
    align-items:center;
    justify-content:center;
    min-height:180px;
    width:100%;
    max-width:760px;
    margin:0 auto;
  }
  .article-state .state-sub{font-size:14px;color:var(--text-weak)}
  .article-state .btn-back{margin-top:8px}
  .btn-back{
    display:inline-flex;
    align-items:center;
    gap:8px;
    padding:9px 24px;
    border-radius:50px;
    font-size:14px;
    font-weight:600;
    color:#1a0f2e;
    background:linear-gradient(120deg,var(--primary),var(--secondary));
    transition:all .3s;
    border:none;
  }
  .btn-back:hover{box-shadow:0 0 22px rgba(167,139,250,.3);transform:translateY(-2px);filter:brightness(1.06)}
  .btn-back:active{transform:scale(.98)}
  .sidebar-box{
    width:280px;
    flex:0 0 280px;
    position:sticky;
    top:96px;
    display:flex;
    flex-direction:column;
    gap:20px;
  }
  .sidebar-widget{
    background:transparent;
    border:1px solid var(--border);
    border-radius:16px;
    overflow:hidden;
    position:relative;
  }
  .sidebar-widget-title{
    font-size:13px;
    font-weight:700;
    color:#fff;
    padding:16px 20px;
    letter-spacing:1px;
    text-transform:uppercase;
    background:rgba(255,255,255,.03);
    border-bottom:1px solid rgba(255,255,255,.05);
  }
  .sidebar-links{display:flex;flex-direction:column}
  .sidebar-link{
    display:block;
    padding:13px 20px;
    border-bottom:1px solid rgba(255,255,255,.04);
    transition:all .3s ease;
  }
  .sidebar-link:last-child{border-bottom:none}
  .sidebar-link:hover{background:rgba(167,139,250,.08);padding-left:26px}
  .sidebar-link .link-text{display:flex;flex-direction:column;gap:2px}
  .sidebar-link .link-cat{font-size:11px;color:var(--secondary);text-transform:uppercase;letter-spacing:1px}
  .sidebar-link .link-title{font-size:13px;color:var(--text-main);font-weight:500}
  .sidebar-cta{
    background:rgba(167,139,250,.06);
    border:1px solid rgba(167,139,250,.2);
    border-radius:16px;
    padding:20px;
    display:flex;
    flex-direction:column;
    gap:10px;
    position:relative;
  }
  .sidebar-cta h4{color:#fff;font-size:16px;font-weight:700}
  .sidebar-cta p{color:var(--text-weak);font-size:13px;line-height:1.6}

  /* 相关推荐 */
  .article-bottom-section{
    max-width:820px;
    margin:44px auto 20px;
    display:flex;
    flex-direction:column;
    gap:18px;
    padding:0 24px;
  }
  .related-title{font-size:20px;font-weight:700;color:#fff;letter-spacing:.3px}
  .related-grid{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:12px;
  }
  @media(max-width:768px){.related-grid{grid-template-columns:1fr}}
  .related-card{
    border:1px solid var(--border);
    border-radius:16px;
    overflow:hidden;
    background:rgba(255,255,255,.02);
    transition:all .3s ease;
    display:flex;
    flex-direction:column;
  }
  .related-card:hover{
    border-color:rgba(167,139,250,.4);
    background:rgba(167,139,250,.06);
    transform:translateY(-4px);
    box-shadow:0 12px 28px rgba(0,0,0,.36);
  }
  .related-cover{position:relative;width:100%;aspect-ratio:16/6.4;overflow:hidden}
  .related-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
  .related-card:hover .related-cover img{transform:scale(1.04)}
  .related-thumb{width:100%;height:140px;object-fit:cover;margin:0}
  .related-info{padding:12px 16px 14px;display:flex;flex-direction:column;gap:6px}
  .related-meta{display:flex;align-items:center;gap:8px;font-size:11px;color:var(--text-weak)}
  .related-title-link{font-size:15px;font-weight:600;color:#e8dfff;line-height:1.5;transition:color .3s;display:flex;gap:6px;align-items:flex-start}
  .related-card:hover .related-title-link{color:#fff}
  .related-date{display:inline-flex;align-items:center;font-size:12px;color:var(--text-weak)}
  .related-block{display:flex;flex-direction:column;gap:10px}
  .article-prevnext{
    display:flex;
    flex-direction:column;
    gap:8px;
    max-width:820px;
    margin:24px auto 0;
    width:100%;
    padding:0 24px;
  }
  .prevnext-row{
    display:flex;
    flex-direction:row;
    align-items:center;
    gap:12px;
    border:1px solid var(--border);
    border-radius:12px;
    padding:14px 18px;
    transition:all .3;
    background:transparent;
  }
  .prevnext-row:hover{background:rgba(167,139,250,.06);border-color:rgba(167,139,250,.3)}
  .prevnext-label{font-size:12px;color:var(--text-weak);flex:0 0 auto;min-width:60px}
  .prevnext-label a:hover{color:var(--secondary)}

  .btn-round-home{
    display:inline-block;
    margin-top:24px;
    padding:11px 24px;
    gap:0;
    border-radius:50px;
    font-size:14px;
    border:1px solid rgba(167,139,250,.5);
    color:rgba(167,139,250,1);
    transition:all .3;
    background:rgba(167,139,250,.08);
    color:#a78bfa;
    text-align:center;
    align-self:flex-start;
    font-weight:600;
  }

  @media(max-width:1100px){
    .nav-list{display:none}
    .burger{display:flex}
    .desktop-cta{display:none}
    .mobile-cta{display:flex}
  }
  @media(max-width:980px){
    .sidebar-box{display:none}
    .article-layout{padding:28px 16px 44px}
    .article-h1{font-size:24px;line-height:1.45}
    .article-meta{font-size:12px}
    .footer-bottom{flex-direction:column;align-items:flex-start;gap:6px}
    .header-inner .wrap{width:100%}
    .footer-head,.footer-nav{width:100%;padding-left:0;padding-right:0}
  }
  @media(max-width:640px){
    .wrap{padding-left:16px;padding-right:16px}
    .brand{font-size:17px}
    .brand .badge{font-size:10px;padding:3px 6px}
    .article-breadcrumb{font-size:12px}
    .article-title-wrap{flex-direction:column}
    .article-thumbnail{aspect-ratio:4/3}
    .article-body{font-size:15.5px;line-height:1.85}
    .footer-bottom{flex-direction:column;justify-content:flex-start}
    .footer-bottom .sep{display:none}
    .footer-bottom .footer-nav a{font-size:12px}
    .related-grid{grid-template-columns:1fr;gap:12px}
    .result-card img{width:100%}
    .article-state{min-height:140px;padding:20px}
    .article-prevnext,.article-bottom-section{padding:0 16px}
  }

  /* 全局渲染正文样式覆盖 */
  .article-content{
    font-size:16px;
    color:#d5cede;
  }
  .article-content h2{
    font-size:22px!important;
    font-weight:700;
    color:#fff;
    margin-top:32px;
    margin-bottom:14px;
    letter-spacing:.3px;
    border-left:3px solid var(--primary);
    padding:0 0 0 16px;
  }
  .article-content p{color:#c7c4d6;line-height:1.85}
  .article-content img{border-radius:16px;margin-top:16px}
  .article-cat{margin-bottom:5px;display:inline-flex}
  .article-cat .label{color:var(--secondary);font-weight:700;font-size:14px}

  .spark-card{opacity:0;visibility:hidden}
  @media(prefers-reduced-motion:reduce){
    .spark-card{opacity:1;visibility:visible}
  }

  .mobile-nav{
    display:flex;
    opacity:0;
    visibility:hidden;
    transform:transform .3s;
  }
  .mobile-nav.open{
    opacity:1;
    visibility:visible;
    pointer-events:auto;
  }
  .top-glow-bar{
    width:100%;
    height:2px;
    background:linear-gradient(90deg,transparent,var(--primary),var(--secondary),transparent);
    position:absolute;
    bottom:-1px;left:0;
    opacity:.6;
  }
  .search-input{
    background:transparent;
    border:none;
    color:var(--text-main);
  }

  .mobile-box{
    display:none;
  }
  @media(max-width:768px){
    .mobile-box{
      display:block;
    }
    .desktop-sidebar{
      display:none;
    }
  }

/* roulang page: category1 */
:root {
    --bg: #0b0714;
    --bg-deep: #07050d;
    --panel: #120d1f;
    --panel-2: #1a1429;
    --line: rgba(255, 255, 255, .08);
    --line-strong: rgba(255, 255, 255, .14);
    --text: #f6f1ff;
    --text-2: #d3cae8;
    --muted: #a89ec4;
    --primary: #b06cff;
    --accent: #48e6ff;
    --grad: linear-gradient(135deg, #b56cff 0%, #53e2ff 100%);
    --radius: 20px;
    --shadow: 0 20px 50px rgba(0, 0, 0, .35);
    --glow: 0 0 42px rgba(144, 92, 255, .35);
    --space-section: clamp(64px, 10vw, 112px);
  }

  *,
  *::before,
  *::after {
    box-sizing: border-box;
  }

  html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
  }

  body {
    margin: 0;
    font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.75;
    overflow-x: hidden;
  }

  body::before {
    content: "";
    position: fixed;
    inset: 0;
    z-index: -2;
    background:
      radial-gradient(900px 600px at 80% -10%, rgba(135, 82, 255, .16), transparent 60%),
      radial-gradient(800px 520px at -10% 45%, rgba(43, 220, 255, .10), transparent 60%),
      var(--bg-deep);
  }

  body::after {
    content: "";
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    opacity: .5;
    background-image:
      radial-gradient(1px 1px at 20% 15%, rgba(255, 255, 255, .6), transparent 100%),
      radial-gradient(1px 1px at 35% 35%, rgba(176, 108, 255, .8), transparent 100%),
      radial-gradient(1px 1px at 68% 22%, rgba(72, 230, 255, .7), transparent 100%),
      radial-gradient(1px 1px at 82% 48%, rgba(255, 255, 255, .5), transparent 100%),
      radial-gradient(1px 1px at 52% 62%, rgba(255, 255, 255, .6), transparent 100%),
      radial-gradient(1px 1px at 12% 82%, rgba(176, 108, 255, .7), transparent 100%),
      radial-gradient(1px 1px at 90% 80%, rgba(72, 230, 255, .6), transparent 100%);
  }

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

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

  button {
    font: inherit;
    border: none;
    cursor: pointer;
    background: none;
    color: inherit;
  }

  h1, h2, h3, h4 {
    margin: 0;
    font-weight: 900;
    letter-spacing: -0.02em;
  }

  p {
    margin: 0;
  }

  .wrap {
    width: 100%;
    max-width: 1200px;
    margin-inline: auto;
    padding-inline: 24px;
  }

  .skip-link {
    position: absolute;
    left: -999px;
    top: 8px;
    z-index: 100;
    padding: 10px 16px;
    background: var(--accent);
    color: #001014;
    border-radius: 8px;
    font-weight: 700;
  }

  .skip-link:focus {
    left: 8px;
  }

  .section {
    position: relative;
    padding-block: var(--space-section);
  }

  .section-head {
    max-width: 760px;
    margin-bottom: 44px;
  }

  .section-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: .12em;
    color: var(--accent);
    background: rgba(72, 230, 255, .08);
    border: 1px solid rgba(72, 230, 255, .18);
    padding: 6px 12px;
    border-radius: 999px;
    margin-bottom: 16px;
  }

  .section-title {
    font-size: clamp(28px, 3.6vw, 38px);
    line-height: 1.3;
  }

  .section-sub {
    margin-top: 14px;
    color: var(--muted);
    font-size: 16px;
    max-width: 660px;
  }

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    border-radius: 999px;
    font-weight: 800;
    line-height: 1;
    padding: 14px 24px;
    transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease, filter .2s ease;
    will-change: transform;
  }

  .btn:active {
    transform: scale(.98);
  }

  .btn-primary {
    background: var(--grad);
    color: #08020f;
    box-shadow: 0 10px 34px rgba(138, 82, 255, .32);
  }

  .btn-primary:hover {
    filter: brightness(1.08);
    box-shadow: 0 12px 42px rgba(72, 230, 255, .28);
    transform: translateY(-2px);
  }

  .btn-ghost {
    background: rgba(255, 255, 255, .02);
    color: #f6f1ff;
    border: 1px solid rgba(72, 230, 255, .4);
    box-shadow: inset 0 0 18px rgba(72, 230, 255, .03);
  }

  .btn-ghost:hover {
    border-color: var(--accent);
    color: var(--accent);
    box-shadow: 0 0 24px rgba(72, 230, 255, .16);
    transform: translateY(-2px);
  }

  /* Header */
  .site-header {
    position: sticky;
    top: 0;
    z-index: 60;
    background: rgba(9, 6, 16, .82);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(255, 255, 255, .04);
  }

  .site-header::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: -1px;
    height: 1px;
    background: linear-gradient(90deg, rgba(176, 108, 255, .9), rgba(72, 230, 255, .9));
    opacity: .72;
    pointer-events: none;
  }

  .header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    min-height: 76px;
  }

  .brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    flex: 0 0 auto;
  }

  .brand-mark {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 17px;
    color: #fff;
    background: radial-gradient(circle at 30% 25%, #e8ccff, #8650d6 60%, #3e1f70);
    box-shadow: 0 0 22px rgba(176, 108, 255, .55);
  }

  .brand-text {
    display: inline-flex;
    align-items: center;
    gap: 8px;
  }

  .brand-name {
    font-size: 21px;
    font-weight: 900;
    letter-spacing: -0.02em;
  }

  .brand-badge {
    font-size: 12px;
    font-weight: 700;
    letter-spacing: .06em;
    color: #c9fbff;
    background: rgba(72, 230, 255, .10);
    border: 1px solid rgba(72, 230, 255, .34);
    padding: 3px 9px;
    border-radius: 999px;
    white-space: nowrap;
  }

  .nav-list {
    display: flex;
    align-items: center;
    gap: 2px;
  }

  .nav-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 26px 14px;
    font-size: 15px;
    font-weight: 700;
    color: var(--muted);
    white-space: nowrap;
    transition: color .2s ease, text-shadow .2s ease;
  }

  .nav-link::after {
    content: "";
    position: absolute;
    bottom: -1px;
    left: 14px;
    right: 14px;
    height: 2px;
    border-radius: 2px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    transform: scaleX(.4);
    opacity: 0;
    transition: transform .2s ease, opacity .2s ease;
  }

  .nav-link:hover {
    color: #fff;
  }

  .nav-link.active {
    color: #fff;
    text-shadow: 0 0 20px rgba(176, 108, 255, .55);
  }

  .nav-link.active::after {
    transform: scaleX(1);
    opacity: 1;
  }

  .nav-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
    padding: 10px 18px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 800;
    color: #090213;
    background: var(--grad);
    box-shadow: 0 10px 28px rgba(138, 82, 255, .3);
    transition: transform .2s ease, box-shadow .2s ease, filter .2s ease;
  }

  .nav-cta:hover {
    transform: translateY(-2px);
    filter: brightness(1.08);
    box-shadow: 0 12px 36px rgba(72, 230, 255, .24);
  }

  .menu-toggle {
    display: none;
    width: 42px;
    height: 42px;
    border-radius: 10px;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    border: 1px solid rgba(255, 255, 255, .12);
    background: rgba(255, 255, 255, .04);
  }

  .menu-toggle span {
    display: block;
    width: 18px;
    height: 2px;
    background: #fff;
    border-radius: 99px;
  }

  .mobile-menu {
    position: fixed;
    top: 76px;
    left: 0;
    right: 0;
    z-index: 55;
    padding: 20px 24px 24px;
    background: rgba(10, 6, 18, .97);
    border-bottom: 1px solid rgba(255, 255, 255, .1);
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    transition: opacity .25s ease, transform .25s ease, visibility .25s ease;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
  }

  .mobile-menu .inner {
    max-width: 1200px;
    margin-inline: auto;
  }

  .mobile-menu .mobile-nav {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-bottom: 16px;
  }

  .mobile-menu .mobile-nav a {
    display: flex;
    padding: 12px 6px;
    font-weight: 700;
    font-size: 16px;
    color: var(--text-2);
    border-bottom: 1px solid rgba(255, 255, 255, .06);
  }

  .mobile-menu .mobile-nav a.active {
    color: #fff;
    text-shadow: 0 0 14px rgba(176, 108, 255, .5);
  }

  .mobile-menu .mobile-cta {
    display: flex;
  }

  .body-mobile-open {
    overflow: hidden;
  }

  .body-mobile-open .mobile-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  /* Page hero */
  .page-hero {
    position: relative;
    min-height: 520px;
    display: flex;
    align-items: center;
    overflow: hidden;
    background-position: center;
    background-size: cover;
  }

  .page-hero .hero-veil {
    position: absolute;
    inset: 0;
    background:
      linear-gradient(180deg, rgba(10, 6, 18, .72) 0%, rgba(10, 6, 18, .45) 45%, var(--bg) 96%),
      radial-gradient(600px 400px at 75% 20%, rgba(176, 108, 255, .12), transparent 80%);
  }

  .page-hero .hero-content {
    position: relative;
    padding-block: 112px 92px;
  }

  .breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    font-size: 13px;
    color: var(--muted);
    margin-bottom: 22px;
    gap: 8px;
  }

  .breadcrumb a {
    color: var(--muted);
    transition: color .2s ease;
  }

  .breadcrumb a:hover {
    color: var(--accent);
  }

  .breadcrumb .sep {
    opacity: .5;
  }

  .hero-kicker {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: .12em;
    color: var(--accent);
    border: 1px solid rgba(72, 230, 255, .22);
    background: rgba(72, 230, 255, .08);
    padding: 6px 14px;
    border-radius: 999px;
    margin-bottom: 22px;
  }

  .hero-title {
    font-size: clamp(36px, 6.2vw, 64px);
    line-height: 1.12;
    letter-spacing: -0.03em;
    max-width: 760px;
  }

  .hero-title .grad {
    background: linear-gradient(92deg, #d7a8ff 0%, #64eaff 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
  }

  .hero-lead {
    max-width: 640px;
    margin-top: 20px;
    font-size: clamp(16px, 1.6vw, 19px);
    color: #d8ceea;
  }

  .hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 30px;
  }

  .hero-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 34px;
  }

  .hero-meta span {
    font-size: 12px;
    color: var(--text-2);
    background: rgba(255, 255, 255, .05);
    border: 1px solid rgba(255, 255, 255, .08);
    border-radius: 999px;
    padding: 6px 12px;
  }

  /* Channel cards */
  .channel-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
  }

  .channel-tile {
    position: relative;
    background: linear-gradient(180deg, rgba(255, 255, 255, .055), rgba(255, 255, 255, .018));
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 26px 22px 22px;
    overflow: hidden;
    transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
  }

  .channel-tile::before {
    content: "";
    position: absolute;
    top: -60px;
    right: -60px;
    width: 150px;
    height: 150px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(176, 108, 255, .18), transparent 70%);
    pointer-events: none;
  }

  .channel-tile:hover {
    transform: translateY(-6px);
    border-color: rgba(176, 108, 255, .32);
    box-shadow: 0 20px 48px rgba(0, 0, 0, .33), 0 0 28px rgba(176, 108, 255, .12);
  }

  .channel-icon {
    width: 48px;
    height: 48px;
    margin-bottom: 20px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    border-radius: 14px;
    background: rgba(176, 108, 255, .12);
    color: #d4a8ff;
    border: 1px solid rgba(176, 108, 255, .24);
    box-shadow: 0 0 22px rgba(176, 108, 255, .08);
  }

  .channel-tile:nth-child(2) .channel-icon {
    background: rgba(72, 230, 255, .10);
    color: #9ff3ff;
    border-color: rgba(72, 230, 255, .26);
    box-shadow: 0 0 22px rgba(72, 230, 255, .08);
  }

  .channel-tile:nth-child(4) .channel-icon {
    background: rgba(255, 190, 94, .10);
    color: #ffd58a;
    border-color: rgba(255, 190, 94, .24);
    box-shadow: 0 0 22px rgba(255, 190, 94, .06);
  }

  .channel-tile h3 {
    font-size: 20px;
    margin-bottom: 10px;
  }

  .channel-tile p {
    color: var(--muted);
    font-size: 14px;
  }

  .tile-tag {
    display: inline-block;
    margin-top: 18px;
    font-size: 12px;
    font-weight: 700;
    color: var(--text-2);
    background: rgba(255, 255, 255, .05);
    border: 1px solid rgba(255, 255, 255, .08);
    padding: 4px 10px;
    border-radius: 999px;
  }

  .focus-wrap {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: clamp(28px, 5vw, 72px);
    align-items: center;
  }

  .focus-media {
    position: relative;
    border-radius: 24px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, .10);
    box-shadow: 0 28px 70px rgba(0, 0, 0, .4);
  }

  .focus-media img {
    width: 100%;
    height: 100%;
    min-height: 320px;
    object-fit: cover;
  }

  .focus-media::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(10, 6, 18, 0) 40%, rgba(10, 6, 18, .66));
  }

  .media-caption {
    position: absolute;
    left: 20px;
    right: 20px;
    bottom: 20px;
    z-index: 2;
    font-size: 14px;
    font-weight: 700;
    color: #fff;
    text-shadow: 0 2px 14px rgba(0, 0, 0, .35);
  }

  .topic-list {
    display: flex;
    flex-direction: column;
  }

  .topic-item {
    display: flex;
    gap: 18px;
    padding: 18px 0;
    border-bottom: 1px solid rgba(255, 255, 255, .07);
    transition: padding-left .25s ease, border-color .25s ease;
  }

  .topic-item:first-child {
    padding-top: 0;
  }

  .topic-item:last-child {
    border-bottom: 0;
    padding-bottom: 0;
  }

  .topic-item:hover {
    padding-left: 6px;
    border-color: rgba(176, 108, 255, .2);
  }

  .topic-num {
    font-size: 13px;
    font-weight: 800;
    color: var(--accent);
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    padding-top: 4px;
  }

  .topic-content h3 {
    font-size: 18px;
    margin-bottom: 5px;
  }

  .topic-content p {
    color: var(--muted);
    font-size: 14px;
    line-height: 1.7;
  }

  .topic-link {
    display: inline-block;
    margin-top: 10px;
    font-size: 13px;
    font-weight: 700;
    color: var(--accent);
  }

  .topic-link:hover {
    text-decoration: underline;
  }

  /* Segment split */
  .value-wrap {
    display: grid;
    grid-template-columns: 1.35fr .9fr;
    gap: clamp(28px, 5vw, 68px);
    align-items: end;
  }

  .value-steps {
    display: flex;
    flex-direction: column;
    counter-reset: valueCounter;
  }

  .value-step {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 20px;
    padding: 22px 0;
    border-bottom: 1px solid rgba(255, 255, 255, .07);
    counter-increment: valueCounter;
  }

  .value-step:last-child {
    border-bottom: 0;
  }

  .value-index {
    width: 48px;
    height: 48px;
    border-radius: 16px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 900;
    font-size: 17px;
    background: linear-gradient(145deg, rgba(176, 108, 255, .16), rgba(72, 230, 255, .08));
    border: 1px solid rgba(176, 108, 255, .22);
    color: #e7ccff;
  }

  .value-step h3 {
    font-size: 20px;
    margin-bottom: 6px;
  }

  .value-step p {
    color: var(--muted);
    font-size: 14px;
    max-width: 520px;
  }

  .side-card {
    position: relative;
    border-radius: 24px;
    padding: 30px;
    background: linear-gradient(160deg, #1d1430 0%, #120d20 100%);
    border: 1px solid rgba(176, 108, 255, .22);
    overflow: hidden;
    box-shadow: 0 24px 60px rgba(0, 0, 0, .4);
  }

  .side-card::before {
    content: "";
    position: absolute;
    top: -72px;
    right: -72px;
    width: 190px;
    height: 190px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(176, 108, 255, .3), transparent 70%);
  }

  .side-card h3 {
    font-size: 22px;
    margin-bottom: 8px;
    position: relative;
  }

  .side-card .hint {
    position: relative;
    color: var(--muted);
    font-size: 13px;
    margin-bottom: 22px;
  }

  .check-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    position: relative;
    margin-bottom: 26px;
  }

  .check-list li {
    display: flex;
    gap: 10px;
    list-style: none;
    font-size: 14px;
    color: var(--text-2);
    line-height: 1.6;
  }

  .check-list li::before {
    content: "✓";
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    font-size: 12px;
    color: #061014;
    background: var(--grad);
    margin-top: 2px;
    font-weight: 900;
  }

  .side-card .btn {
    width: 100%;
    position: relative;
  }

  /* Alert strip */
  .alert-zone {
    padding-top: 0;
  }

  .alert-bar {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 20px 24px;
    border-radius: 18px;
    background: rgba(255, 180, 80, .06);
    border: 1px solid rgba(255, 190, 94, .2);
    color: #f0e2c9;
  }

  .alert-icon {
    flex: 0 0 auto;
    width: 28px;
    height: 28px;
    border-radius: 8px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 190, 94, .16);
    color: #ffd58a;
  }

  .alert-bar strong {
    color: #fff4dd;
  }

  .alert-bar p {
    margin: 0;
    font-size: 14px;
    line-height: 1.7;
  }

  /* FAQ */
  .faq-list {
    max-width: 820px;
    display: flex;
    flex-direction: column;
    gap: 12px;
  }

  .faq-item {
    border-radius: 16px;
    background: rgba(255, 255, 255, .032);
    border: 1px solid var(--line);
    overflow: hidden;
    transition: border-color .2s ease, background .2s ease;
  }

  .faq-item[open] {
    border-color: rgba(176, 108, 255, .30);
    background: rgba(176, 108, 255, .05);
  }

  .faq-summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    padding: 18px 22px;
    font-size: 16px;
    font-weight: 800;
    cursor: pointer;
    list-style: none;
    color: var(--text);
  }

  .faq-summary::-webkit-details-marker {
    display: none;
  }

  .faq-icon {
    position: relative;
    width: 22px;
    height: 22px;
    flex: 0 0 auto;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, .2);
  }

  .faq-icon::before,
  .faq-icon::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 10px;
    height: 2px;
    background: var(--accent);
    transform: translate(-50%, -50%);
    border-radius: 4px;
  }

  .faq-icon::after {
    transform: translate(-50%, -50%) rotate(90deg);
    transition: transform .25s ease;
  }

  .faq-item[open] .faq-icon::after {
    transform: translate(-50%, -50%) rotate(0deg);
  }

  .faq-answer {
    padding: 0 22px 20px;
    color: var(--muted);
    font-size: 14px;
    line-height: 1.85;
  }

  /* CTA */
  .cta-section {
    padding-top: var(--space-section);
  }

  .cta-panel {
    position: relative;
    border-radius: 28px;
    overflow: hidden;
    padding: clamp(28px, 6vw, 72px);
    background-position: center;
    background-size: cover;
    background-repeat: no-repeat;
  }

  .cta-panel .cover {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(10, 6, 18, .80), rgba(10, 6, 18, .92)), radial-gradient(700px 420px at 80% 10%, rgba(176, 108, 255, .12), transparent 70%);
  }

  .cta-inner {
    position: relative;
    text-align: center;
    max-width: 760px;
    margin-inline: auto;
  }

  .cta-inner h2 {
    font-size: clamp(30px, 4.2vw, 48px);
    line-height: 1.25;
  }

  .cta-inner .grad {
    background: linear-gradient(92deg, #d7a8ff, #64eaff);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
  }

  .cta-inner .desc {
    color: var(--muted);
    margin-top: 18px;
    font-size: 16px;
  }

  .cta-actions {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 14px;
    margin-top: 28px;
    flex-wrap: wrap;
  }

  .cta-actions .btn-primary {
    padding: 16px 30px;
    font-size: 16px;
  }

  .trust-list {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px 24px;
    margin-top: 30px;
  }

  .trust-item {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-2);
  }

  .trust-item::before {
    content: "◆";
    display: inline-block;
    font-size: 10px;
    color: var(--accent);
  }

  /* Footer */
  .site-footer {
    border-top: 1px solid rgba(255, 255, 255, .07);
    background: rgba(7, 4, 12, .72);
    margin-top: clamp(30px, 5vw, 60px);
  }

  .site-footer .wrap {
    padding-top: 44px;
    padding-bottom: 28px;
  }

  .footer-head {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 28px;
    max-width: 700px;
  }

  .footer-brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 900;
    color: var(--text);
  }

  .dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--grad);
    box-shadow: 0 0 12px rgba(176, 108, 255, .7);
  }

  .footer-note {
    font-size: 13px;
    color: var(--muted);
    line-height: 1.8;
  }

  .footer-nav {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px 18px;
    padding: 16px 0;
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    font-size: 14px;
  }

  .footer-nav a {
    color: var(--text-2);
    transition: color .2s ease;
  }

  .footer-nav a:hover {
    color: var(--accent);
  }

  .footer-nav a.active {
    color: #fff;
    text-shadow: 0 0 12px rgba(176, 108, 255, .5);
  }

  .footer-nav .sep-line {
    color: var(--line-strong);
  }

  .footer-bottom {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 8px 16px;
    padding-top: 20px;
    color: var(--weak, #8d83a8);
    font-size: 12px;
  }

  @media (max-width: 1023px) {
    .nav-list,
    .header-inner > .nav-cta {
      display: none;
    }

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

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

    .focus-wrap {
      grid-template-columns: 1fr;
    }

    .focus-media {
      order: -1;
    }

    .focus-media img {
      min-height: 300px;
    }

    .value-wrap {
      grid-template-columns: 1fr;
    }

    .side-card {
      max-width: 560px;
    }

    .hero-actions .btn {
      width: auto;
    }
  }

  @media (max-width: 767px) {
    .brand-badge {
      display: none;
    }

    .wrap {
      padding-inline: 18px;
    }

    .hero-title {
      font-size: clamp(32px, 8vw, 44px);
    }

    .page-hero .hero-content {
      padding-top: 80px;
      padding-bottom: 80px;
    }

    .channel-grid {
      grid-template-columns: 1fr;
      gap: 14px;
    }

    .channel-tile {
      padding: 22px 20px;
    }

    .value-step {
      gap: 14px;
      padding: 18px 0;
    }

    .value-index {
      width: 40px;
      height: 40px;
      font-size: 15px;
      border-radius: 12px;
    }

    .side-card {
      padding: 24px;
    }

    .alert-bar {
      flex-direction: column;
      align-items: flex-start;
      gap: 10px;
    }

    .faq-summary {
      font-size: 15px;
      padding: 16px 18px;
    }

    .faq-answer {
      padding: 0 18px 18px;
    }

    .cta-panel {
      padding: 38px 20px;
      border-radius: 20px;
    }

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

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

    .footer-nav {
      gap: 6px 12px;
      font-size: 13px;
    }
  }

  @media (max-width: 639px) {
    .section {
      padding-block: 64px;
    }

    .section-title {
      font-size: 26px;
    }

    .topic-item {
      gap: 12px;
      padding: 16px 0;
    }

    .topic-num {
      font-size: 12px;
    }

    .brand-name {
      font-size: 18px;
    }

    .brand-mark {
      width: 30px;
      height: 30px;
      font-size: 15px;
    }

    .header-inner {
      min-height: 68px;
    }

    .mobile-menu {
      top: 68px;
    }

    .trust-list {
      flex-direction: column;
      align-items: center;
      gap: 8px;
    }
  }

  @media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
      animation-duration: 0.01ms !important;
      animation-iteration-count: 1 !important;
      transition-duration: 0.01ms !important;
      scroll-behavior: auto !important;
    }
  }

/* roulang page: category2 */
:root{
  --bg:#0a0716;
  --bg-deep:#080612;
  --bg-card:#181130;
  --bg-card-2:#201843;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(255,255,255,.14);
  --text:#f4f0fb;
  --text-2:#b8aed2;
  --text-3:#817899;
  --neon-purple:#a06bff;
  --neon-pink:#c7a6ff;
  --neon-cyan:#5ee0ff;
  --radius-lg:20px;
  --radius-md:14px;
  --radius-sm:10px;
  --shadow-card:0 18px 44px rgba(0,0,0,.28);
  --glow-purple:0 0 34px rgba(160,107,255,.22);
  --glow-cyan:0 0 26px rgba(94,224,255,.16);
}
html{
  scroll-behavior:smooth;
}
*{
  box-sizing:border-box;
}
body{
  margin:0;
  overflow-x:hidden;
  background:
    radial-gradient(circle at 12% 0%,rgba(160,107,255,.10),transparent 36%),
    radial-gradient(circle at 88% 16%,rgba(94,224,255,.07),transparent 28%),
    var(--bg-deep);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:15px;
  line-height:1.8;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    radial-gradient(1px 1px at 18% 32%,rgba(255,255,255,.26) 0,transparent 60%),
    radial-gradient(1.4px 1.4px at 74% 18%,rgba(94,224,255,.22) 0,transparent 60%),
    radial-gradient(1px 1px at 47% 76%,rgba(160,107,255,.25) 0,transparent 60%),
    radial-gradient(1.5px 1.5px at 92% 68%,rgba(255,255,255,.14) 0,transparent 60%);
}
a{
  color:inherit;
  text-decoration:none;
}
img{
  display:block;
  max-width:100%;
}
h1,h2,h3,h4,p{
  margin:0;
}
button{
  font-family:inherit;
}
main{
  position:relative;
  z-index:1;
}
.wrap{
  width:100%;
  max-width:1200px;
  margin-inline:auto;
  padding-inline:24px;
}
.section-block{
  padding:96px 0;
}
.section-head{
  max-width:800px;
  margin-bottom:46px;
}
.section-head.center{
  text-align:center;
  margin-inline:auto;
}
.section-head.center .section-desc{
  margin-inline:auto;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:800;
  letter-spacing:.1em;
  color:#d2bcff;
  text-transform:uppercase;
  margin-bottom:12px;
}
.eyebrow::before{
  content:"";
  width:20px;
  height:2px;
  background:linear-gradient(90deg,var(--neon-purple),var(--neon-cyan));
  border-radius:2px;
}
.section-title{
  font-size:clamp(26px,3.2vw,38px);
  line-height:1.25;
  font-weight:900;
  letter-spacing:-.5px;
  color:#fff;
  margin-bottom:14px;
}
.section-desc{
  color:var(--text-2);
  font-size:15px;
  line-height:1.9;
  max-width:720px;
}
.js .reveal{
  opacity:0;
  transform:translateY(20px);
  transition:opacity .7s ease,transform .7s ease;
}
.js .reveal.in{
  opacity:1;
  transform:none;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  line-height:1;
  padding:0 24px;
  border-radius:999px;
  border:1px solid transparent;
  font-weight:800;
  white-space:nowrap;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,border-color .2s ease,filter .2s ease;
}
.btn:hover{
  transform:translateY(-2px);
}
.btn:active{
  transform:scale(.97);
}
.btn-primary{
  color:#110b24;
  background:linear-gradient(125deg,#bd92ff 0%,#6eeaff 100%);
  box-shadow:0 10px 26px rgba(113,82,255,.2);
}
.btn-primary:hover{
  filter:saturate(1.08) brightness(1.05);
  box-shadow:0 0 30px rgba(160,107,255,.46),0 12px 30px rgba(0,0,0,.26);
  color:#110b24;
}
.btn-ghost{
  background:rgba(10,7,22,.24);
  border-color:rgba(94,224,255,.48);
  color:#dbfaff;
}
.btn-ghost:hover{
  background:rgba(94,224,255,.12);
  border-color:#91eeff;
  box-shadow:var(--glow-cyan);
  color:#fff;
}
.btn-lg{
  height:54px;
  padding:0 32px;
  font-size:16px;
}
.btn-sm{
  height:40px;
  padding:0 18px;
  font-size:14px;
}
.btn-block{
  display:flex;
  width:100%;
}
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(8,6,17,.76);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
}
.site-header::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(160,107,255,.85),rgba(94,224,255,.7),transparent);
  pointer-events:none;
}
.header-inner{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:72px;
  gap:16px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:8px 0;
  flex-shrink:0;
}
.brand-star{
  width:36px;
  height:36px;
  display:grid;
  place-items:center;
  border-radius:12px;
  background:linear-gradient(145deg,rgba(160,107,255,.26),rgba(94,224,255,.12));
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.08),0 0 22px rgba(160,107,255,.14);
}
.brand-name{
  font-size:22px;
  font-weight:900;
  letter-spacing:.4px;
  color:#fff;
}
.brand-tag{
  font-size:11px;
  line-height:1;
  font-weight:900;
  color:#150d28;
  background:linear-gradient(90deg,#b78aff,#72ecff);
  padding:5px 9px;
  border-radius:999px;
  box-shadow:0 0 14px rgba(94,224,255,.2);
  letter-spacing:.06em;
}
.nav-list{
  display:flex;
  align-items:center;
  margin-inline:auto;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  min-height:72px;
  padding:0 6px;
  margin:0 14px;
  color:#b9afe0;
  font-weight:700;
  font-size:15px;
  white-space:nowrap;
  transition:color .2s ease,text-shadow .2s ease;
}
.nav-link:hover{
  color:#fff;
}
.nav-link.active{
  color:#f6efff;
  text-shadow:0 0 16px rgba(160,107,255,.5);
}
.nav-link.active::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  height:2px;
  border-radius:2px 2px 0 0;
  background:linear-gradient(90deg,var(--neon-purple),var(--neon-cyan));
  box-shadow:0 0 16px rgba(160,107,255,.65);
}
.header-cta{
  flex-shrink:0;
}
.menu-burger{
  display:none;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
  width:44px;
  height:44px;
  border:0;
  border-radius:12px;
  background:rgba(255,255,255,.04);
  cursor:pointer;
}
.menu-burger span{
  display:block;
  width:20px;
  height:2px;
  border-radius:2px;
  background:#e5def4;
}
.mobile-menu{
  position:fixed;
  inset:0;
  z-index:150;
  visibility:hidden;
  opacity:0;
  transition:opacity .25s ease,visibility .25s ease;
}
.mobile-menu.is-open{
  visibility:visible;
  opacity:1;
}
.mobile-backdrop{
  position:absolute;
  inset:0;
  background:rgba(4,3,12,.6);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
}
.mobile-menu-panel{
  position:absolute;
  top:0;
  right:0;
  bottom:0;
  width:min(88vw,350px);
  padding:20px 18px 24px;
  background:linear-gradient(160deg,#1a1230,#0e0a1d);
  border-left:1px solid rgba(255,255,255,.09);
  box-shadow:-24px 0 70px rgba(0,0,0,.45);
  display:flex;
  flex-direction:column;
  overflow:auto;
}
.mobile-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-bottom:16px;
  margin-bottom:22px;
  border-bottom:1px solid var(--line);
}
.mobile-brand{
  font-size:19px;
  font-weight:900;
  color:#f4efff;
}
.mobile-brand b{
  margin-left:6px;
  font-size:11px;
  color:#150d28;
  background:linear-gradient(90deg,#b78aff,#72ecff);
  padding:3px 8px;
  border-radius:999px;
}
.mobile-close{
  width:36px;
  height:36px;
  font-size:24px;
  line-height:1;
  color:#d9cff2;
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.08);
  border-radius:10px;
  cursor:pointer;
}
.mobile-nav-list{
  display:grid;
  gap:12px;
}
.mobile-nav-link{
  display:flex;
  align-items:center;
  gap:14px;
  padding:14px 14px;
  border-radius:14px;
  border:1px solid transparent;
  background:rgba(255,255,255,.03);
  color:#c9bfe3;
  font-weight:700;
  transition:border-color .2s,background .2s,color .2s;
}
.mobile-nav-link .nav-num{
  font-family:"SF Mono",Consolas,"Liberation Mono",monospace;
  font-size:12px;
  color:#6e6393;
}
.mobile-nav-link.active{
  background:linear-gradient(90deg,rgba(160,107,255,.2),rgba(94,224,255,.08));
  color:#fff;
  border-color:rgba(160,107,255,.35);
}
.mobile-foot{
  margin-top:auto;
  padding-top:22px;
}
.guide-banner{
  position:relative;
  min-height:420px;
  display:flex;
  align-items:center;
  padding:92px 0 86px;
  background-size:cover;
  background-position:center;
  background-repeat:no-repeat;
  border-bottom:1px solid rgba(255,255,255,.05);
}
.guide-banner::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(90deg,rgba(7,5,17,.88) 4%,rgba(9,6,20,.72) 52%,rgba(10,7,20,.72));
}
.guide-banner::after{
  content:"";
  position:absolute;
  right:-80px;
  top:-100px;
  width:420px;
  height:420px;
  background:radial-gradient(circle,rgba(160,107,255,.24),transparent 66%);
  pointer-events:none;
}
.guide-banner .wrap{
  position:relative;
  z-index:2;
}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:#8a80a9;
  margin-bottom:18px;
}
.breadcrumb a{
  color:#c7bfe0;
  transition:color .2s;
}
.breadcrumb a:hover{
  color:#fff;
}
.breadcrumb i{
  font-style:normal;
  color:#5d5480;
}
.breadcrumb .current{
  color:#72e6ff;
}
.cat-h1{
  font-size:clamp(36px,5.2vw,60px);
  font-weight:900;
  line-height:1.14;
  letter-spacing:-1.5px;
  margin-bottom:20px;
}
.cat-h1 .grad{
  background:linear-gradient(115deg,#ceb1ff,#6eeaff);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.cat-h1-sub{
  max-width:720px;
  color:#cec3e3;
  font-size:15px;
  line-height:1.95;
}
.banner-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:30px;
}
.scope-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
}
.scope-card{
  position:relative;
  background:linear-gradient(180deg,rgba(35,25,63,.68),rgba(20,15,37,.7));
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:26px 22px;
  overflow:hidden;
  transition:transform .25s ease,border-color .25s ease,background .25s ease,box-shadow .25s ease;
}
.scope-card::after{
  content:"";
  position:absolute;
  inset:0;
  background:radial-gradient(circle at 20% 0,rgba(160,107,255,.15),transparent 55%);
  opacity:0;
  transition:opacity .25s ease;
}
.scope-card:hover{
  transform:translateY(-7px);
  background:linear-gradient(180deg,#251a4a,#191130);
  border-color:rgba(160,107,255,.4);
  box-shadow:var(--shadow-card),0 0 30px rgba(160,107,255,.1);
}
.scope-card:hover::after{
  opacity:1;
}
.scope-icon{
  position:relative;
  z-index:1;
  width:48px;
  height:48px;
  display:grid;
  place-items:center;
  color:#c5a3ff;
  background:rgba(160,107,255,.12);
  border:1px solid rgba(160,107,255,.25);
  border-radius:14px;
  margin-bottom:18px;
}
.scope-card h3{
  position:relative;
  z-index:1;
  font-size:18px;
  font-weight:800;
  margin-bottom:8px;
  color:#f4efff;
}
.scope-card p{
  position:relative;
  z-index:1;
  color:#a49bc2;
  font-size:14px;
  line-height:1.8;
}
.quick-card{
  display:grid;
  grid-template-columns:1fr 1.1fr;
  border-radius:26px;
  overflow:hidden;
  border:1px solid rgba(255,255,255,.12);
  background:linear-gradient(135deg,#1b1431,#0f0b1f);
  box-shadow:var(--shadow-card);
}
.quick-visual{
  min-height:280px;
}
.quick-visual img{
  width:100%;
  height:100%;
  object-fit:cover;
}
.quick-copy{
  padding:42px 44px;
}
.quick-copy .section-title{
  font-size:clamp(24px,2.6vw,34px);
}
.quick-copy .section-desc{
  margin-bottom:18px;
}
.quick-links{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:10px;
}
.quick-links a{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:10px 16px;
  border-radius:999px;
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.1);
  color:#d9d0ec;
  font-size:14px;
  font-weight:700;
  transition:border-color .2s,background .2s,color .2s;
}
.quick-links a:hover{
  border-color:rgba(94,224,255,.45);
  background:rgba(94,224,255,.08);
  color:#fff;
}
.quick-links a span{
  color:var(--neon-cyan);
}
.timeline-section{
  background:linear-gradient(180deg,rgba(16,12,30,.44),rgba(10,7,19,.6));
  border-top:1px solid rgba(255,255,255,.04);
  border-bottom:1px solid rgba(255,255,255,.04);
}
.timeline{
  max-width:930px;
  margin-inline:auto;
}
.timeline-item{
  position:relative;
  padding-left:98px;
  padding-bottom:46px;
}
.timeline-item:last-child{
  padding-bottom:0;
}
.timeline-item:not(:last-child)::before{
  content:"";
  position:absolute;
  left:32px;
  top:74px;
  bottom:8px;
  width:1px;
  background:linear-gradient(180deg,rgba(160,107,255,.8),rgba(94,224,255,.25));
}
.timeline-dot{
  position:absolute;
  left:0;
  top:6px;
  width:66px;
  height:66px;
  display:grid;
  place-items:center;
  border-radius:22px;
  background:linear-gradient(145deg,rgba(160,107,255,.24),rgba(12,9,22,.72));
  border:1px solid rgba(160,107,255,.55);
  color:#cbaaff;
  font-family:"SF Mono",Consolas,"Liberation Mono",monospace;
  font-size:18px;
  font-weight:700;
  box-shadow:0 0 28px rgba(160,107,255,.2);
}
.step-card{
  border:1px solid var(--line);
  background:linear-gradient(180deg,#1d1538,#141027);
  border-radius:var(--radius-lg);
  padding:28px;
  transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.step-card:hover{
  border-color:rgba(160,107,255,.38);
  transform:translateY(-3px);
  box-shadow:var(--shadow-card),0 0 34px rgba(160,107,255,.09);
}
.step-tags{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-bottom:12px;
}
.step-tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:12px;
  font-weight:700;
  color:#9ceeff;
  background:rgba(94,224,255,.1);
  border:1px solid rgba(94,224,255,.22);
  padding:4px 10px;
  border-radius:999px;
}
.step-tag.purple{
  color:#d1b4ff;
  background:rgba(160,107,255,.12);
  border-color:rgba(160,107,255,.28);
}
.step-card h3{
  font-size:22px;
  font-weight:800;
  color:#f7f1ff;
  margin-bottom:10px;
  letter-spacing:-.3px;
}
.step-card p{
  color:#a9a0c5;
  font-size:15px;
}
.step-note{
  margin-top:16px;
  padding:11px 15px;
  border-radius:12px;
  background:rgba(160,107,255,.1);
  border-left:3px solid var(--neon-purple);
  color:#c9b9ec;
  font-size:13px;
}
.tips-section{
  position:relative;
}
.tips-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:20px;
  max-width:1020px;
  margin:0 auto;
}
.tip-card{
  display:flex;
  align-items:flex-start;
  gap:16px;
  padding:26px 24px;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  background:rgba(24,18,47,.72);
  transition:border-color .25s,transform .25s,background .25s,box-shadow .25s;
}
.tip-card:hover{
  transform:translateY(-4px);
  background:#1d1538;
  border-color:rgba(94,224,255,.3);
  box-shadow:0 16px 34px rgba(0,0,0,.24);
}
.tip-num{
  flex-shrink:0;
  width:40px;
  height:40px;
  display:grid;
  place-items:center;
  border-radius:12px;
  font-family:"SF Mono",Consolas,monospace;
  font-size:13px;
  font-weight:700;
  color:#aff3ff;
  background:rgba(94,224,255,.1);
  border:1px solid rgba(94,224,255,.22);
}
.tip-card h3{
  font-size:17px;
  font-weight:800;
  color:#f4eeff;
  margin-bottom:6px;
}
.tip-card p{
  color:#a69cc4;
  font-size:14px;
  line-height:1.8;
}
.faq-section{
  background:linear-gradient(180deg,rgba(13,10,25,.42),rgba(7,5,16,.35));
  border-top:1px solid rgba(255,255,255,.04);
}
.faq-list{
  max-width:860px;
  margin-inline:auto;
  border-top:1px solid var(--line);
}
.faq-item{
  border-bottom:1px solid var(--line);
}
.faq-summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  gap:18px;
  justify-content:space-between;
  padding:22px 4px;
  color:#e9e3f7;
  font-size:17px;
  font-weight:800;
  transition:color .2s;
}
.faq-summary::-webkit-details-marker{
  display:none;
}
.faq-summary:hover{
  color:#fff;
}
.faq-item[open] .faq-summary{
  color:#d6bdff;
  padding-bottom:8px;
}
.faq-icon{
  flex:none;
  position:relative;
  width:32px;
  height:32px;
  border-radius:50%;
  border:1px solid rgba(160,107,255,.3);
  background:rgba(160,107,255,.12);
  color:#d0b6ff;
  display:grid;
  place-items:center;
  font-size:18px;
  transition:transform .25s,border-color .25s;
}
.faq-icon::before{
  content:"+";
}
.faq-item[open] .faq-icon{
  border-color:rgba(94,224,255,.5);
  color:#8bedff;
}
.faq-item[open] .faq-icon::before{
  content:"−";
}
.faq-answer{
  padding:10px 30px 26px 4px;
  color:#a89dc8;
  font-size:15px;
  line-height:1.9;
  max-width:780px;
}
.cta-block{
  padding:88px 0 104px;
}
.cta-panel{
  position:relative;
  border-radius:28px;
  overflow:hidden;
  background:linear-gradient(145deg,#1a1230,#0f0b20);
  border:1px solid rgba(160,107,255,.26);
  padding:48px 44px;
  box-shadow:var(--shadow-card);
}
.cta-panel::before{
  content:"";
  position:absolute;
  inset:0;
  background:url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  opacity:.2;
}
.cta-panel::after{
  content:"";
  position:absolute;
  top:-40%;
  left:20%;
  width:440px;
  height:440px;
  background:radial-gradient(circle,rgba(160,107,255,.28),transparent 65%);
  pointer-events:none;
}
.cta-grid{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:48px;
  align-items:center;
}
.cta-copy .eyebrow{
  color:#79e0f8;
}
.cta-copy h2{
  font-size:clamp(28px,3.4vw,42px);
  font-weight:900;
  letter-spacing:-.6px;
  line-height:1.2;
  margin-bottom:14px;
}
.cta-copy h2 .grad{
  background:linear-gradient(115deg,#cfa9ff,#7be9ff);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.cta-copy p{
  color:#afa5cb;
  max-width:560px;
  margin-bottom:24px;
}
.cta-trust{
  display:flex;
  flex-wrap:wrap;
  gap:18px;
  list-style:none;
  padding:4px 0 0;
  margin:18px 0 0;
}
.cta-trust li{
  display:inline-flex;
  align-items:center;
  gap:7px;
  color:#b9aed2;
  font-size:13px;
  font-weight:600;
}
.cta-trust li svg{
  width:16px;
  height:16px;
  color:var(--neon-cyan);
}
.cta-art{
  position:relative;
}
.cta-art img{
  width:100%;
  border-radius:20px;
  border:1px solid rgba(255,255,255,.14);
  box-shadow:0 18px 44px rgba(0,0,0,.35);
}
.site-footer{
  background:rgba(7,5,16,.95);
  border-top:1px solid rgba(255,255,255,.07);
  padding:46px 0 24px;
  position:relative;
  z-index:2;
}
.footer-head{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  justify-content:space-between;
  gap:16px;
  margin-bottom:22px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:19px;
  font-weight:900;
  color:#f1ebfd;
}
.footer-brand .dot{
  width:10px;
  height:10px;
  border-radius:50%;
  background:var(--neon-purple);
  box-shadow:0 0 12px rgba(160,107,255,.8);
}
.footer-note{
  max-width:570px;
  color:#7e739c;
  font-size:13px;
  line-height:1.75;
}
.footer-nav{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:18px;
  border-top:1px solid rgba(255,255,255,.06);
  padding-top:20px;
  color:#978caf;
  font-size:14px;
  font-weight:500;
}
.footer-nav a{
  transition:color .2s;
}
.footer-nav a:hover{
  color:#77eaff;
}
.footer-nav .active{
  color:#ecdcff;
  font-weight:800;
  text-shadow:0 0 12px rgba(160,107,255,.35);
}
.footer-nav .divide{
  opacity:.35;
}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  margin-top:22px;
  padding-top:18px;
  border-top:1px solid rgba(255,255,255,.05);
  color:#62587e;
  font-size:13px;
}
@media (max-width:1023px){
  .section-block{
    padding:76px 0;
  }
  .nav-list{
    display:none;
  }
  .header-cta{
    display:none;
  }
  .menu-burger{
    display:flex;
  }
  .scope-grid{
    grid-template-columns:repeat(2,1fr);
  }
  .quick-card{
    grid-template-columns:1fr;
  }
  .quick-visual{
    max-height:320px;
  }
  .cta-grid{
    grid-template-columns:1fr;
    gap:30px;
  }
  .cta-art{
    max-width:460px;
  }
}
@media (max-width:767px){
  .section-block{
    padding:62px 0;
  }
  .wrap{
    padding-inline:18px;
  }
  .header-inner{
    min-height:66px;
  }
  .brand-name{
    font-size:20px;
  }
  .brand-tag{
    font-size:10px;
  }
  .guide-banner{
    min-height:340px;
    padding:72px 0 54px;
  }
  .cat-h1{
    font-size:37px;
    letter-spacing:-1px;
  }
  .scope-grid{
    grid-template-columns:1fr;
    gap:16px;
  }
  .scope-card{
    padding:22px 20px;
  }
  .quick-copy{
    padding:30px 24px;
  }
  .timeline-item{
    padding-left:64px;
  }
  .timeline-item:not(:last-child)::before{
    left:24px;
  }
  .timeline-dot{
    width:50px;
    height:50px;
    font-size:15px;
    border-radius:16px;
  }
  .step-card{
    padding:20px;
  }
  .step-card h3{
    font-size:19px;
  }
  .tips-grid{
    grid-template-columns:1fr;
    gap:14px;
  }
  .tip-card{
    padding:20px;
  }
  .cta-panel{
    padding:32px 24px;
  }
  .footer-head{
    flex-direction:column;
    align-items:flex-start;
  }
  .footer-bottom{
    flex-direction:column;
    align-items:flex-start;
  }
}
@media (max-width:639px){
  .section-block{
    padding:54px 0;
  }
  .section-head{
    margin-bottom:30px;
  }
  .banner-actions .btn{
    width:100%;
    max-width:340px;
  }
  .timeline-item{
    padding-left:0;
  }
  .timeline-item:not(:last-child)::before{
    display:none;
  }
  .timeline-dot{
    position:static;
    margin-bottom:14px;
  }
  .cta-panel{
    border-radius:24px;
    padding:26px 18px;
  }
  .cta-trust{
    gap:12px;
  }
  .footer-nav{
    gap:12px;
  }
}
@media (prefers-reduced-motion:reduce){
  *,
  *::before,
  *::after{
    animation:none !important;
    transition:none !important;
    scroll-behavior:auto !important;
  }
  .js .reveal{
    opacity:1;
    transform:none;
  }
}