*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --c-bg: #07121f;
  --c-bg-soft: #0b1b2f;
  --c-surface: rgba(13, 29, 47, 0.76);
  --c-surface-strong: rgba(12, 25, 40, 0.94);
  --c-border: rgba(136, 197, 255, 0.2);
  --c-text: #e9f6ff;
  --c-text-muted: #9eb5c9;
  --c-primary: #1ec8ff;
  --c-primary-2: #18d4a8;
  --c-primary-hover: #39d3ff;
  --c-success: #35d39c;
  --c-error: #ff7b7b;
  --c-price: #ffb35b;
  --ff-sans: "Space Grotesk", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow-card: 0 18px 40px rgba(2, 8, 19, 0.42);
  --shadow-soft: 0 10px 24px rgba(7, 17, 28, 0.36);
  --transition: 0.24s cubic-bezier(0.2, 0.75, 0.2, 1);
  --anchor-offset: 84px;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--ff-sans);
  background:
    radial-gradient(circle at 18% 14%, rgba(30, 200, 255, 0.18), transparent 34%),
    radial-gradient(circle at 82% 18%, rgba(24, 212, 168, 0.14), transparent 28%),
    radial-gradient(circle at 50% 110%, rgba(37, 115, 255, 0.12), transparent 38%),
    linear-gradient(160deg, var(--c-bg) 0%, #081728 46%, #06111d 100%);
  color: var(--c-text);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

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

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

.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 22px;
}

.bg-grid {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(rgba(150, 220, 255, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(150, 220, 255, 0.055) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: radial-gradient(circle at 50% 50%, black 48%, transparent 100%);
}

.header {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 14px;
  padding: 0;
  gap: 14px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 11px 16px;
  border-radius: 12px;
  border: 1px solid rgba(155, 216, 255, 0.2);
  background: rgba(7, 20, 33, 0.68);
  backdrop-filter: blur(10px);
  box-shadow: 0 10px 22px rgba(3, 10, 18, 0.35);
  font-weight: 700;
  letter-spacing: 0.01em;
}

.brandText {
  font-size: 1.04rem;
  background: linear-gradient(100deg, #f0fbff, #7de4ff 52%, #72ffd7);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.nav {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-left: auto;
  padding: 9px 12px;
  border-radius: 12px;
  border: 1px solid rgba(155, 216, 255, 0.17);
  background: rgba(7, 20, 33, 0.62);
  backdrop-filter: blur(10px);
  box-shadow: 0 10px 22px rgba(3, 10, 18, 0.32);
}

.nav a {
  color: var(--c-text-muted);
  font-size: 0.95rem;
  font-weight: 500;
  transition: color var(--transition);
}

.nav a:hover {
  color: var(--c-text);
}

.navCtaBtn {
  padding: 8px 14px;
  border: 1px solid rgba(64, 214, 255, 0.36);
  border-radius: 999px;
  color: #cbf7ff;
  font-size: 0.92rem;
  font-weight: 600;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
  background: linear-gradient(135deg, rgba(30, 200, 255, 0.2), rgba(24, 212, 168, 0.16));
}

.navCtaBtn:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 24px rgba(29, 187, 255, 0.24);
}

.mobileMenuBtn {
  display: none;
  width: 34px;
  height: 34px;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  padding: 5px;
}

.mobileMenuBtn span {
  display: block;
  width: 100%;
  height: 2px;
  border-radius: 999px;
  background: var(--c-text);
  transition: all var(--transition);
}

.mobileMenuBtn.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.mobileMenuBtn.active span:nth-child(2) {
  opacity: 0;
}

.mobileMenuBtn.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

.hero {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: stretch;
  padding-top: 76px;
  padding-bottom: 98px;
}

.heroLeft {
  display: flex;
  flex-direction: column;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
  padding: 7px 14px;
  width: fit-content;
  border-radius: 999px;
  border: 1px solid rgba(102, 221, 255, 0.42);
  background: rgba(12, 44, 68, 0.52);
  color: #9ce8ff;
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.h1 {
  margin-bottom: 20px;
  min-height: 3.7rem;
  font-size: clamp(2.05rem, 4.6vw, 3.05rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  white-space: nowrap;
}

.lead {
  margin-bottom: 34px;
  max-width: 560px;
  color: var(--c-text-muted);
  font-size: 1.05rem;
}

.heroActions {
  display: flex;
  gap: 14px;
  margin-bottom: 38px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 12px;
  padding: 13px 28px;
  font-size: 0.98rem;
  font-weight: 600;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition), background var(--transition);
}

.btnPrimary {
  border: 1px solid rgba(128, 241, 255, 0.45);
  background: linear-gradient(135deg, var(--c-primary) 0%, #28b7ff 46%, var(--c-primary-2) 100%);
  color: #031525;
  box-shadow: 0 12px 28px rgba(22, 172, 219, 0.36);
}

.btnPrimary:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 30px rgba(22, 172, 219, 0.46);
}

.btnGhost {
  border: 1px solid var(--c-border);
  color: var(--c-text);
  background: rgba(9, 25, 39, 0.66);
}

.btnGhost:hover {
  border-color: rgba(137, 211, 255, 0.42);
  background: rgba(18, 40, 61, 0.74);
  transform: translateY(-1px);
}

.btnWide {
  width: 100%;
}

.trustRow {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.trust {
  padding: 14px 12px;
  border: 1px solid rgba(141, 205, 255, 0.16);
  border-radius: 12px;
  background: rgba(10, 24, 38, 0.58);
}

.trustK {
  margin-bottom: 4px;
  font-size: 0.72rem;
  color: #90afc8;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.trustV {
  font-size: 0.93rem;
  font-weight: 600;
}

.mirrorStrip {
  margin-top: auto;
  padding: 20px 22px;
  border-radius: var(--radius);
  border: 1px solid rgba(96, 222, 255, 0.24);
  background:
    linear-gradient(145deg, rgba(20, 51, 78, 0.72), rgba(7, 33, 55, 0.82)),
    radial-gradient(circle at 82% 16%, rgba(33, 210, 255, 0.18), transparent 32%);
  box-shadow: var(--shadow-soft);
}

.mirrorTag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 8px;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid rgba(114, 255, 208, 0.46);
  background: rgba(11, 63, 60, 0.55);
  color: #95ffd8;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.mirrorTitle {
  margin-bottom: 6px;
  font-size: 1rem;
  font-weight: 600;
}

.mirrorDesc {
  color: var(--c-text-muted);
  font-size: 0.92rem;
  line-height: 1.7;
}

.mirrorLink {
  display: inline-flex;
  align-items: center;
  padding: 1px 8px;
  margin: 0 2px;
  border-radius: 8px;
  border: 1px solid rgba(111, 235, 255, 0.4);
  background: rgba(19, 129, 170, 0.36);
  color: #d9f7ff;
  transition: background var(--transition), transform var(--transition);
}

.mirrorLink:hover {
  background: rgba(19, 153, 201, 0.46);
  transform: translateY(-1px);
}

.card {
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 28px;
  background: linear-gradient(160deg, rgba(10, 27, 44, 0.88), rgba(8, 21, 34, 0.9));
  box-shadow: var(--shadow-card);
}

.cardGlow {
  position: relative;
  overflow: hidden;
}

.cardGlow::before {
  content: "";
  position: absolute;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(35, 201, 255, 0.3), transparent 70%);
  top: -70px;
  right: -60px;
  pointer-events: none;
}

.cardTop {
  margin-bottom: 20px;
}

.cardTitle {
  margin-bottom: 4px;
  font-size: 1.18rem;
  font-weight: 700;
}

.cardSub {
  color: var(--c-text-muted);
  font-size: 0.9rem;
}

.mini {
  margin-top: 20px;
  border-color: rgba(117, 217, 255, 0.24);
  background: linear-gradient(160deg, rgba(9, 33, 50, 0.8), rgba(10, 29, 44, 0.86));
}

.miniTitle {
  margin-bottom: 12px;
  color: #8ec4ea;
  font-size: 0.8rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.miniList {
  list-style: none;
}

.miniList li {
  position: relative;
  margin-bottom: 8px;
  padding-left: 18px;
  color: var(--c-text-muted);
  font-size: 0.92rem;
}

.miniList li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--c-success);
  font-weight: 700;
}

.priceBox {
  position: relative;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid rgba(158, 220, 255, 0.2);
}

.priceTag {
  position: absolute;
  top: -10px;
  right: 0;
  border-radius: 10px;
  padding: 4px 9px;
  background: linear-gradient(135deg, #ff925f, #ff5d5d);
  color: #fff;
  font-size: 0.69rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  box-shadow: 0 8px 18px rgba(255, 103, 89, 0.35);
  animation: pulseTag 2.4s ease-in-out infinite;
}

.priceMain {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
}

.priceLabel {
  color: var(--c-text-muted);
  font-size: 0.88rem;
}

.priceValue {
  color: var(--c-price);
  font-size: 1.45rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  text-shadow: 0 0 18px rgba(255, 179, 91, 0.45);
}

.priceNote {
  color: var(--c-text-muted);
  font-size: 0.8rem;
}

.planGuide {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px dashed rgba(139, 192, 228, 0.24);
}

.planGuideTitle {
  margin-bottom: 8px;
  color: #91b8d5;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.planGuideList {
  display: grid;
  gap: 6px;
}

.planGuideItem {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
}

.planGuideName {
  color: #d6ecff;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  white-space: nowrap;
}

.planGuideDesc {
  color: #9fbfd8;
  font-size: 0.78rem;
  text-align: right;
}

.wechatBox {
  border-radius: var(--radius-sm);
  border: 1px solid rgba(130, 201, 255, 0.18);
  background: rgba(7, 21, 34, 0.72);
  padding: 20px;
}

.wechatIdRow {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(124, 190, 241, 0.18);
}

.wechatIdLabel {
  color: var(--c-text-muted);
  font-size: 0.84rem;
}

.wechatIdValue {
  color: #83e6ff;
  font-size: 1.09rem;
  font-family: "Space Grotesk", monospace;
  font-weight: 700;
}

.wechatButtons {
  display: flex;
  gap: 10px;
  margin-bottom: 14px;
}

.note {
  color: var(--c-text-muted);
  font-size: 0.8rem;
  line-height: 1.55;
}

.note strong {
  color: #ffc58b;
}

.section {
  padding-top: 78px;
  padding-bottom: 78px;
  position: relative;
  scroll-margin-top: var(--anchor-offset);
}

.planShowcase {
  margin-top: 6px;
  margin-bottom: 4px;
}

.planShowcaseCard {
  border-radius: var(--radius);
  border: 1px solid rgba(109, 194, 242, 0.28);
  background: linear-gradient(140deg, rgba(8, 32, 52, 0.84), rgba(5, 24, 40, 0.78));
  box-shadow: 0 16px 34px rgba(2, 11, 19, 0.3);
  padding: 22px 24px;
}

.planShowcaseHead {
  margin-bottom: 14px;
}

.planShowcaseTitle {
  margin: 0 0 6px;
  color: #d4ecff;
  font-size: clamp(1.1rem, 2vw, 1.36rem);
  letter-spacing: -0.01em;
}

.planShowcaseSub {
  margin: 0;
  color: var(--c-text-muted);
  font-size: 0.92rem;
}

.planShowcaseTable {
  border-top: 1px solid rgba(115, 190, 240, 0.23);
}

.planShowcaseRow {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  align-items: center;
  padding: 11px 0;
  border-bottom: 1px dashed rgba(116, 175, 212, 0.2);
}

.planShowcaseRow:last-child {
  border-bottom: none;
}

.planShowcaseHeader {
  color: #8db3cc;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.planShowcaseHeader span:last-child {
  justify-self: end;
  text-align: right;
}

.planShowcaseRow span:nth-child(2) {
  justify-self: center;
  text-align: center;
}

.planShowcaseName {
  color: #d7eeff;
  font-size: 1.08rem;
  font-weight: 700;
}

.planShowcaseRef {
  color: #a7c8df;
  font-size: 0.98rem;
}

.planShowcaseSale {
  color: #ffd287;
  font-size: 1rem;
  font-weight: 700;
  justify-self: end;
  text-align: right;
}

.sectionHead {
  text-align: center;
  margin-bottom: 46px;
}

.h2 {
  margin-bottom: 10px;
  font-size: clamp(1.7rem, 3vw, 2.1rem);
  letter-spacing: -0.01em;
}

.sublead {
  color: var(--c-text-muted);
  font-size: 1.02rem;
}

.steps {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-bottom: 44px;
}

.step {
  display: flex;
  gap: 18px;
  border: 1px solid rgba(135, 207, 255, 0.22);
  border-radius: var(--radius);
  padding: 22px;
  background: linear-gradient(150deg, rgba(9, 28, 46, 0.84), rgba(7, 21, 33, 0.9));
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.step:hover {
  transform: translateY(-2px);
  border-color: rgba(90, 220, 255, 0.48);
  box-shadow: 0 14px 24px rgba(7, 22, 35, 0.35);
}

.stepN {
  width: 42px;
  height: 42px;
  flex-shrink: 0;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #032133;
  background: linear-gradient(135deg, #7be8ff 0%, #4fd5c9 100%);
  font-size: 1.04rem;
  font-weight: 700;
}

.stepTitle {
  margin-bottom: 6px;
  font-weight: 600;
}

.stepDesc {
  color: var(--c-text-muted);
  font-size: 0.9rem;
}

.stepDesc a {
  color: #74e8ff;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.ctaStrip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border: 1px solid rgba(92, 213, 255, 0.3);
  border-radius: var(--radius);
  padding: 24px 28px;
  background: linear-gradient(140deg, rgba(14, 48, 73, 0.74), rgba(9, 31, 50, 0.8));
}

.ctaStripTitle {
  margin-bottom: 4px;
  font-size: 1.08rem;
  font-weight: 700;
}

.ctaStripDesc {
  color: var(--c-text-muted);
  font-size: 0.9rem;
}

.ctaStripText {
  flex: 1;
}

.ctaStrip .btn {
  margin-left: 8px;
  flex-shrink: 0;
}

.grid3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.feature {
  border: 1px solid rgba(132, 199, 250, 0.2);
  border-radius: var(--radius);
  background: linear-gradient(155deg, rgba(9, 30, 48, 0.86), rgba(8, 22, 35, 0.94));
  padding: 25px;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.feature:hover {
  transform: translateY(-2px);
  border-color: rgba(105, 218, 255, 0.4);
  box-shadow: 0 12px 26px rgba(5, 15, 25, 0.32);
}

.featureTitle {
  margin-bottom: 10px;
  font-size: 1.05rem;
  font-weight: 700;
}

.featureDesc {
  color: var(--c-text-muted);
  font-size: 0.94rem;
}

.faq {
  max-width: 760px;
  margin: 0 auto;
}

.faqItem {
  margin-bottom: 12px;
  border: 1px solid rgba(130, 198, 250, 0.2);
  border-radius: 13px;
  background: rgba(8, 26, 42, 0.78);
  overflow: hidden;
}

.faqItem summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 22px;
  font-weight: 600;
}

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

.faqItem summary::after {
  content: "+";
  color: var(--c-text-muted);
  font-size: 1.25rem;
  transition: transform var(--transition);
}

.faqItem[open] summary::after {
  transform: rotate(45deg);
}

.faqBody {
  padding: 0 22px 18px;
  color: var(--c-text-muted);
  font-size: 0.93rem;
  line-height: 1.7;
}

.bottomCta {
  padding-top: 56px;
  padding-bottom: 56px;
}

.bottomCtaCard {
  max-width: 740px;
  margin: 0 auto;
  padding: 44px;
  text-align: center;
  border-radius: var(--radius);
  border: 1px solid rgba(96, 212, 255, 0.3);
  background:
    linear-gradient(150deg, rgba(14, 46, 72, 0.72), rgba(9, 29, 46, 0.86)),
    radial-gradient(circle at 80% 20%, rgba(115, 255, 223, 0.16), transparent 35%);
}

.bottomCtaText {
  margin-bottom: 28px;
}

.bottomCtaActions {
  display: flex;
  justify-content: center;
  gap: 14px;
}

.footer {
  margin-top: 56px;
  padding-top: 24px;
  padding-bottom: 34px;
  border-top: 1px solid rgba(133, 197, 245, 0.16);
}

.footerLine {
  text-align: center;
  color: var(--c-text-muted);
  font-size: 0.88rem;
}

.sep {
  margin: 0 8px;
}

.muted {
  color: #7f9ab0;
}

.modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
}

.modal.open {
  opacity: 1;
  visibility: visible;
}

.modalBackdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 8, 15, 0.72);
  backdrop-filter: blur(6px);
}

.modalPanel {
  position: relative;
  width: 92%;
  max-width: 390px;
  border-radius: var(--radius);
  border: 1px solid rgba(125, 204, 255, 0.28);
  background: linear-gradient(160deg, rgba(9, 28, 44, 0.96), rgba(7, 20, 33, 0.98));
  box-shadow: 0 22px 44px rgba(2, 8, 14, 0.52);
  transform: scale(0.95);
  transition: transform var(--transition);
}

.modal.open .modalPanel {
  transform: scale(1);
}

.modalHead {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 22px;
  border-bottom: 1px solid rgba(127, 188, 230, 0.2);
}

.modalTitle {
  font-weight: 700;
}

.iconBtn {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--c-text-muted);
  font-size: 1.5rem;
  transition: background var(--transition), color var(--transition);
}

.iconBtn:hover {
  background: rgba(44, 90, 125, 0.42);
  color: var(--c-text);
}

.modalBody {
  padding: 22px;
  text-align: center;
}

.modalPriceCard {
  margin-bottom: 16px;
  padding: 16px 15px 14px;
  border-radius: 13px;
  border: 1px solid rgba(255, 181, 118, 0.34);
  background: linear-gradient(145deg, rgba(87, 54, 25, 0.34), rgba(39, 25, 14, 0.2));
}

.modalPriceTop {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 6px;
}

.modalPriceTag {
  border-radius: 999px;
  padding: 3px 8px;
  background: linear-gradient(135deg, #ffa25a, #ff5f6f);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
}

.modalPriceLabel {
  color: #b8cee0;
  font-size: 0.84rem;
  font-weight: 600;
}

.modalPriceValue {
  color: var(--c-price);
  font-size: 2rem;
  line-height: 1.05;
  font-weight: 800;
  letter-spacing: -0.02em;
  text-shadow: 0 0 18px rgba(255, 185, 102, 0.5);
}

.modalPriceSub {
  margin-top: 6px;
  color: var(--c-text-muted);
  font-size: 0.84rem;
}

.modalPriceCard .planGuide {
  margin-top: 12px;
  text-align: left;
}

.qrImg {
  width: 240px;
  height: 240px;
  margin-bottom: 20px;
  padding: 8px;
  border-radius: 12px;
  background: #f5fdff;
}

.modalRemark {
  margin-top: 0;
  color: var(--c-text-muted);
  font-size: 0.9rem;
}

.toast {
  position: fixed;
  top: 18px;
  left: 50%;
  transform: translateX(-50%) translateY(-18px);
  z-index: 200;
  padding: 13px 22px;
  border-radius: 12px;
  border: 1px solid rgba(120, 196, 245, 0.25);
  background: rgba(9, 27, 43, 0.9);
  color: #dcf4ff;
  box-shadow: 0 18px 30px rgba(2, 8, 14, 0.46);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
}

.toast.show {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.toast.success {
  border-color: rgba(84, 225, 170, 0.46);
}

.heroLeft > *,
.heroRight > *,
.section,
.footer {
  animation: fadeUp 0.7s both;
}

.heroLeft > *:nth-child(1) { animation-delay: 0.03s; }
.heroLeft > *:nth-child(2) { animation-delay: 0.08s; }
.heroLeft > *:nth-child(3) { animation-delay: 0.13s; }
.heroLeft > *:nth-child(4) { animation-delay: 0.18s; }
.heroLeft > *:nth-child(5) { animation-delay: 0.23s; }
.heroRight > *:nth-child(1) { animation-delay: 0.16s; }
.heroRight > *:nth-child(2) { animation-delay: 0.24s; }
.step:nth-child(1) { animation: fadeUp 0.55s 0.08s both; }
.step:nth-child(2) { animation: fadeUp 0.55s 0.12s both; }
.step:nth-child(3) { animation: fadeUp 0.55s 0.16s both; }
.step:nth-child(4) { animation: fadeUp 0.55s 0.2s both; }

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulseTag {
  0%, 100% {
    box-shadow: 0 8px 18px rgba(255, 103, 89, 0.35);
  }
  50% {
    box-shadow: 0 10px 24px rgba(255, 121, 91, 0.55);
  }
}

@media (max-width: 900px) {
  :root {
    --anchor-offset: 72px;
  }

  .container {
    width: calc(100% - 40px);
    margin-left: auto;
    margin-right: auto;
    padding-left: 0;
    padding-right: 0;
  }

  .header {
    top: 0;
    margin-top: 0;
    margin-bottom: 10px;
    gap: 10px;
  }

  .brand {
    padding: 10px 12px;
    max-width: calc(100% - 52px);
  }

  .brandText {
    font-size: 0.95rem;
  }

  .mobileMenuBtn {
    display: flex;
    margin-left: auto;
    border: 1px solid rgba(155, 216, 255, 0.18);
    border-radius: 10px;
    background: rgba(7, 20, 33, 0.66);
  }

  .nav {
    position: fixed;
    top: 68px;
    left: 20px;
    width: calc(100% - 40px);
    transform: translateX(-120%);
    height: calc(100vh - 68px);
    padding: 24px 18px;
    gap: 18px;
    background: rgba(6, 18, 30, 0.97);
    border: 1px solid rgba(155, 216, 255, 0.16);
    border-radius: 14px;
    box-shadow: none;
    backdrop-filter: blur(8px);
    flex-direction: column;
    transition: transform var(--transition);
    z-index: 99;
  }

  .nav a {
    padding: 8px 0;
    font-size: 1.05rem;
  }

  .navOpen .nav {
    transform: translateX(0);
  }

  .navOpen::after {
    content: "";
    position: fixed;
    inset: 68px 0 0 0;
    background: rgba(2, 9, 15, 0.55);
    z-index: 98;
  }

  .hero {
    grid-template-columns: 1fr;
    gap: 38px;
    padding-top: 56px;
    padding-bottom: 76px;
  }

  .heroRight {
    order: -1;
    padding-top: 6px;
  }

  .planShowcase {
    margin-top: 2px;
  }

  .planShowcaseCard {
    padding: 20px;
  }

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

  .mirrorStrip {
    margin-top: 22px;
    margin-bottom: 10px;
  }

  .trustRow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .steps,
  .grid3 {
    grid-template-columns: 1fr;
  }

  .stepDesc a {
    overflow-wrap: anywhere;
    word-break: break-word;
  }

  .ctaStrip {
    flex-direction: column;
    text-align: center;
    gap: 14px;
  }

  .ctaStrip .btn {
    margin-left: 0;
    width: 100%;
  }
}

@media (max-width: 1100px) {
  .h1 {
    white-space: normal;
    font-size: clamp(1.95rem, 4.3vw, 2.7rem);
  }
}

@media (max-width: 768px) {
  .hero {
    padding-top: 50px;
    padding-bottom: 70px;
  }

  .planShowcaseTitle {
    font-size: 1.2rem;
  }

  .planShowcaseSub {
    font-size: 0.9rem;
  }

  .h1 {
    min-height: 3.1rem;
    font-size: clamp(1.85rem, 8vw, 2.4rem);
    white-space: normal;
  }

  .lead,
  .sublead {
    font-size: 0.96rem;
  }

  .section {
    padding-top: 58px;
    padding-bottom: 58px;
  }

  .card,
  .bottomCtaCard {
    padding: 22px;
  }

  .priceValue {
    font-size: 1.28rem;
  }

  .sectionHead {
    margin-bottom: 30px;
  }

  .h2 {
    font-size: 1.52rem;
  }
}

@media (max-width: 500px) {
  :root {
    --anchor-offset: 64px;
  }

  .container {
    width: calc(100% - 32px);
    margin-left: auto;
    margin-right: auto;
    padding-left: 0;
    padding-right: 0;
  }

  .nav {
    left: 16px;
    width: calc(100% - 32px);
  }

  .header {
    margin-top: 0;
    margin-bottom: 8px;
  }

  .hero {
    gap: 30px;
    padding-top: 42px;
    padding-bottom: 62px;
  }

  .heroRight {
    padding-top: 4px;
  }

  .mirrorStrip {
    margin-top: 18px;
    margin-bottom: 8px;
    padding: 18px 16px;
  }

  .heroActions,
  .wechatButtons,
  .bottomCtaActions {
    flex-direction: column;
  }

  .heroActions .btn,
  .bottomCtaActions .btn,
  .wechatButtons .btn {
    width: 100%;
  }

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

  .trust {
    text-align: center;
  }

  .planShowcaseCard {
    padding: 18px 16px;
  }

  .planShowcaseRow {
    grid-template-columns: 1fr;
    gap: 4px;
    padding: 10px 0;
  }

  .planShowcaseName {
    font-size: 1rem;
  }

  .planShowcaseRef,
  .planShowcaseSale {
    font-size: 0.9rem;
    justify-self: start;
    text-align: left;
  }

  .planShowcaseRow span:nth-child(2) {
    justify-self: start;
    text-align: left;
  }

  .planShowcaseHeader span:last-child {
    justify-self: start;
    text-align: left;
  }

  .planGuideItem {
    flex-direction: column;
    align-items: flex-start;
    gap: 2px;
  }

  .planGuideDesc {
    text-align: left;
  }

  .qrImg {
    width: 210px;
    height: 210px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
  }
}