/* 鲸鲨记账官网 — 商务高端风 */

:root {
  --bg: #f7f5f0;
  --bg-rgb: 247, 245, 240;
  --bg-soft: #faf9f6;
  --bg-warm: #fff8ee;
  --bg-alt: #ffffff;
  --ink: #1a1a1f;
  --ink-muted: #5c5c66;
  --ink-soft: #8a8a96;
  --gold: #f8d27c;
  --gold-deep: #e8b84a;
  --gold-light: #fff0c8;
  --brand-blue: #4a9fe8;
  --brand-blue-soft: #6db3ef;
  --brand-blue-deep: #2d7ec4;
  --brand-blue-rgb: 74, 159, 232;
  --cream: #fff6e6;
  --navy: #0f1728;
  --navy-soft: #1a2540;
  --accent: var(--brand-blue);
  --radius: 16px;
  --radius-lg: 24px;
  --shadow: 0 24px 60px rgba(15, 23, 40, 0.08);
  --shadow-soft: 0 8px 30px rgba(15, 23, 40, 0.06);
  --header-h: 72px;
  --scroll-offset: calc(var(--header-h) + 4px);
  --container: min(1240px, calc(100% - 48px));
  --font: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", -apple-system,
    BlinkMacSystemFont, "Segoe UI", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

html,
body {
  overflow-x: clip;
}

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

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

.container {
  width: var(--container);
  margin-inline: auto;
}

/* —— Header —— */
.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  height: var(--header-h);
  background: rgba(var(--bg-rgb), 0.88);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(15, 23, 40, 0.06);
}

.nav {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.02em;
}

.brand img {
  border-radius: 10px;
  box-shadow: var(--shadow-soft);
}

.nav-panel {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-panel a {
  position: relative;
  font-size: 1rem;
  font-weight: 500;
  color: var(--ink-muted);
  transition: color 0.2s, background 0.2s, box-shadow 0.2s;
}

.nav-panel a:hover {
  color: var(--brand-blue-deep);
}

.nav-panel a.is-active:not(.nav-cta) {
  color: var(--navy);
  font-weight: 600;
}

.nav-panel a.is-active:not(.nav-cta)::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -5px;
  height: 3px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--gold-deep), var(--brand-blue));
}

.nav-cta {
  padding: 10px 20px;
  border-radius: 999px;
  background: var(--navy);
  color: #fff !important;
  font-weight: 600;
  box-shadow: 0 8px 24px rgba(15, 23, 40, 0.18);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
}

/* —— Hero —— */
.hero {
  position: relative;
  padding: calc(var(--header-h) + 28px) 0 36px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 90% 65% at 70% -8%, rgba(248, 210, 124, 0.38), transparent 58%),
    radial-gradient(ellipse 48% 50% at 6% 32%, rgba(var(--brand-blue-rgb), 0.14), transparent 54%),
    radial-gradient(ellipse 50% 45% at 4% 28%, rgba(255, 255, 255, 0.72), transparent 52%),
    radial-gradient(ellipse 40% 38% at 94% 68%, rgba(var(--brand-blue-rgb), 0.1), transparent 58%),
    linear-gradient(180deg, #fffaf4 0%, #f5f0e8 45%, var(--bg) 100%);
  pointer-events: none;
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(440px, 1.2fr);
  gap: 32px 48px;
  align-items: stretch;
}

.hero-copy {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  gap: 20px;
  min-height: clamp(480px, 50vw, 600px);
}

.hero-copy__main {
  flex: 0 1 auto;
  padding-top: 44px;
}

.eyebrow {
  display: inline-block;
  margin: 0 0 16px;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(var(--brand-blue-rgb), 0.1);
  border: 1px solid rgba(var(--brand-blue-rgb), 0.22);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--brand-blue-deep);
}

.hero h1 {
  margin: 0 0 20px;
  font-size: clamp(2.2rem, 4.8vw, 3.4rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  font-weight: 800;
}

.gradient-text {
  background: linear-gradient(135deg, #c98a12 0%, #f8d27c 45%, #e8b84a 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-lead {
  margin: 0 0 28px;
  max-width: none;
  font-size: 1.05rem;
  color: var(--ink-muted);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 20px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: var(--navy);
  color: #fff;
  box-shadow: 0 12px 32px rgba(15, 23, 40, 0.22);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid rgba(15, 23, 40, 0.1);
  color: var(--ink);
}

.hero-metrics {
  display: flex;
  gap: 32px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.hero-metrics li {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.btn-ghost:hover {
  border-color: rgba(var(--brand-blue-rgb), 0.35);
  color: var(--brand-blue-deep);
}

.hero-metrics strong {
  font-size: 1.5rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--navy) 0%, var(--brand-blue-deep) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-metrics span {
  font-size: 0.82rem;
  color: var(--ink-soft);
}

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: clamp(500px, 52vw, 640px);
}

.hero-showcase.hero-fan {
  --fan-w: min(100%, 540px);
  --fan-item: 260px;
  --fan-stage-h: clamp(440px, 44vw, 580px);
  --fan-x1: 72px;
  --fan-x2: 138px;
  --fan-x3: 196px;
  --fan-rot1: 12deg;
  --fan-rot2: 22deg;
  --fan-rot3: 30deg;
  --fan-y1: -10px;
  --fan-y2: -16px;
  --fan-y3: -22px;
  --fan-scale-near: 0.9;
  --fan-scale-far: 0.86;
  --fan-scale-edge: 0.8;
  width: var(--fan-w);
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
}

.hero-fan__stage {
  position: relative;
  width: 100%;
  height: var(--fan-stage-h);
  margin: 0;
  perspective: 1200px;
}

.hero-fan__item {
  position: absolute;
  left: 50%;
  top: 50%;
  width: min(52%, var(--fan-item));
  margin: 0;
  padding: 0;
  border: 4px solid rgba(248, 210, 124, 0.95);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #fff;
  box-shadow: var(--shadow);
  cursor: pointer;
  transform-origin: 50% 78%;
  -webkit-tap-highlight-color: transparent;
  transition:
    transform 0.6s cubic-bezier(0.33, 0, 0.2, 1),
    transform-origin 0.6s cubic-bezier(0.33, 0, 0.2, 1),
    opacity 0.6s cubic-bezier(0.33, 0, 0.2, 1),
    box-shadow 0.35s ease,
    border-color 0.35s ease;
  will-change: transform;
}

.hero-fan__item::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: transparent;
  pointer-events: none;
  transition: background 0.15s ease;
  z-index: 1;
}

.hero-fan__item:active::after {
  background: rgba(15, 23, 40, 0.1);
}

.hero-fan__item img {
  width: 100%;
  height: auto;
  display: block;
  pointer-events: none;
}

.hero-fan__item[data-slot="-3"] {
  transform: translate(-50%, -50%) translateX(calc(var(--fan-x3) * -1)) translateY(var(--fan-y3))
    rotate(calc(0deg - var(--fan-rot3))) scale(var(--fan-scale-edge));
  z-index: 0;
  opacity: 0.82;
}

.hero-fan__item[data-slot="-2"] {
  transform: translate(-50%, -50%) translateX(calc(var(--fan-x2) * -1)) translateY(var(--fan-y2))
    rotate(calc(0deg - var(--fan-rot2))) scale(var(--fan-scale-far));
  z-index: 1;
  opacity: 0.88;
}

.hero-fan__item[data-slot="-1"] {
  transform: translate(-50%, -50%) translateX(calc(var(--fan-x1) * -1)) translateY(var(--fan-y1))
    rotate(calc(0deg - var(--fan-rot1))) scale(var(--fan-scale-near));
  z-index: 2;
  opacity: 0.94;
}

.hero-fan__item[data-slot="0"] {
  transform: translate(-50%, -50%) translateX(0) rotate(0deg) scale(1);
  z-index: 5;
  opacity: 1;
}

.hero-fan__item[data-slot="1"] {
  transform: translate(-50%, -50%) translateX(var(--fan-x1)) translateY(var(--fan-y1)) rotate(var(--fan-rot1))
    scale(var(--fan-scale-near));
  z-index: 2;
  opacity: 0.94;
}

.hero-fan__item[data-slot="2"] {
  transform: translate(-50%, -50%) translateX(var(--fan-x2)) translateY(var(--fan-y2)) rotate(var(--fan-rot2))
    scale(var(--fan-scale-far));
  z-index: 1;
  opacity: 0.88;
}

.hero-fan__item[data-slot="3"] {
  transform: translate(-50%, -50%) translateX(var(--fan-x3)) translateY(var(--fan-y3)) rotate(var(--fan-rot3))
    scale(var(--fan-scale-edge));
  z-index: 0;
  opacity: 0.82;
}

.hero-fan__item.is-active {
  transform-origin: center center;
  border-color: rgba(255, 255, 255, 0.95);
  box-shadow:
    0 0 0 2px rgba(255, 255, 255, 0.45),
    0 18px 40px rgba(15, 23, 40, 0.18);
}

.hero-fan__item.is-settling {
  z-index: 5;
}

.hero-fan__item:not(.is-active):hover {
  opacity: 0.98;
}

.hero-fan__dots {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 8px;
  z-index: 10;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 5px;
  margin: 0;
  padding: 0;
  pointer-events: none;
}

.hero-fan__dot {
  pointer-events: auto;
  width: 6px;
  height: 6px;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: rgba(15, 23, 40, 0.16);
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition:
    transform 0.2s ease,
    background 0.2s ease;
}

.hero-fan__dot:active {
  background: rgba(248, 210, 124, 0.55);
}

.hero-fan__dot.is-active {
  background: var(--gold-deep);
  transform: scale(1.15);
}

.hero-fan__dot:hover {
  background: rgba(15, 23, 40, 0.32);
}

.hero-banner {
  margin: 0;
  width: min(100%, 420px);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.hero-banner img {
  width: 100%;
  height: auto;
  display: block;
}

/* —— Hero foot / feature tags —— */
.hero-copy .hero-foot {
  margin-top: 0;
  padding-top: 18px;
  text-align: left;
  border-top: 1px solid rgba(15, 23, 40, 0.08);
  max-width: 100%;
  overflow: hidden;
}

.hero-foot > p {
  margin: 0 0 14px;
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.hero-copy .trust-tags {
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
  max-width: 100%;
}

.trust-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-start;
  gap: 10px;
}

.trust-tags__row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.hero-copy .trust-tags span {
  flex-shrink: 0;
  padding: 7px 12px;
  font-size: 0.8rem;
  white-space: nowrap;
}

.trust-tags span {
  padding: 8px 16px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid rgba(var(--brand-blue-rgb), 0.16);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--ink-muted);
  transition: border-color 0.2s, color 0.2s, box-shadow 0.2s;
}

.trust-tags span:hover {
  border-color: rgba(var(--brand-blue-rgb), 0.35);
  color: var(--brand-blue-deep);
  box-shadow: 0 4px 12px rgba(var(--brand-blue-rgb), 0.1);
}

/* —— Sections —— */
.section {
  position: relative;
  padding: 88px 0;
  scroll-margin-top: var(--scroll-offset);
  overflow: hidden;
}

.section > .container {
  position: relative;
  z-index: 1;
}

.section--alt {
  background:
    radial-gradient(ellipse 55% 50% at 0% 40%, rgba(var(--brand-blue-rgb), 0.09), transparent 55%),
    radial-gradient(ellipse 50% 45% at 100% 20%, rgba(248, 210, 124, 0.14), transparent 52%),
    linear-gradient(180deg, #faf9f7 0%, #f3efe8 100%);
}

#features {
  background:
    radial-gradient(ellipse 45% 40% at 88% 12%, rgba(var(--brand-blue-rgb), 0.1), transparent 55%),
    radial-gradient(ellipse 40% 35% at 8% 88%, rgba(248, 210, 124, 0.1), transparent 50%),
    linear-gradient(180deg, var(--bg) 0%, #ede9e2 100%);
}

#scenarios {
  padding: 60px 0 32px;
  background:
    radial-gradient(ellipse 55% 45% at 50% 110%, rgba(var(--brand-blue-rgb), 0.1), transparent 55%),
    radial-gradient(ellipse 35% 30% at 12% 20%, rgba(248, 210, 124, 0.12), transparent 50%),
    var(--bg);
}

#scenarios .section-head {
  margin-bottom: 36px;
}

.section-head {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 56px;
}

.section-head h2 {
  margin: 0 0 12px;
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  letter-spacing: -0.02em;
}

.section-head h2::after {
  content: "";
  display: block;
  width: 52px;
  height: 4px;
  margin: 14px auto 0;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--gold-deep), var(--brand-blue));
}

.section-head p:last-child {
  margin: 0;
  color: var(--ink-muted);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.feature-card {
  padding: 0;
  border-radius: var(--radius);
  background: var(--bg-alt);
  border: 1px solid rgba(15, 23, 40, 0.06);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
  transition:
    transform 0.4s cubic-bezier(0.22, 1, 0.36, 1),
    box-shadow 0.4s cubic-bezier(0.22, 1, 0.36, 1),
    border-color 0.35s ease;
  will-change: transform;
}

.feature-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 22px 48px rgba(15, 23, 40, 0.14);
  border-color: rgba(var(--brand-blue-rgb), 0.35);
}

.feature-card__visual {
  height: 200px;
  background-size: cover;
  background-position: center;
  position: relative;
  transform: scale(1);
  transition: transform 0.55s cubic-bezier(0.22, 1, 0.36, 1);
}

.feature-card:hover .feature-card__visual {
  transform: scale(1.1);
}

.feature-card__visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(15, 23, 40, 0.02) 0%, rgba(15, 23, 40, 0.18) 100%);
  transition: background 0.4s ease, opacity 0.4s ease;
}

.feature-card:hover .feature-card__visual::after {
  background: linear-gradient(180deg, rgba(var(--brand-blue-rgb), 0.1) 0%, rgba(15, 23, 40, 0.28) 100%);
}

.feature-card--ai .feature-card__visual {
  background-image: url("../assets/features/ai.jpg");
}

.feature-card--auto .feature-card__visual {
  background-image: url("../assets/features/auto.jpg");
  background-position: 52% 42%;
}

.feature-card--team .feature-card__visual {
  background-image: url("../assets/features/team.jpg");
}

.feature-card--stats .feature-card__visual {
  background-image: url("../assets/features/stats.jpg");
  background-position: 48% 42%;
}

.feature-card--budget .feature-card__visual {
  background-image: url("../assets/features/budget.jpg");
  background-position: center 35%;
}

.feature-card--calendar .feature-card__visual {
  background-image: url("../assets/features/calendar.jpg");
  background-position: 62% center;
}

.feature-card--social .feature-card__visual {
  background-image: url("../assets/features/social.jpg");
}

.feature-card--time .feature-card__visual {
  background-image: url("../assets/features/time.jpg");
  background-position: 42% 38%;
}

.feature-card--widget .feature-card__visual {
  background-image: url("../assets/features/widget.jpg");
}

.feature-card__body {
  padding: 18px 20px 22px;
  transition: background 0.35s ease;
}

.feature-card:hover .feature-card__body {
  background: linear-gradient(180deg, #fff 0%, #f5f9ff 100%);
}

.feature-card h3 {
  margin: 0 0 8px;
  font-size: 1.05rem;
  transition: color 0.3s ease;
}

.feature-card:hover h3 {
  color: var(--brand-blue-deep);
}

.feature-card p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--ink-muted);
  line-height: 1.6;
  transition: color 0.3s ease;
}

.feature-card:hover p {
  color: var(--ink);
}

@media (prefers-reduced-motion: reduce) {
  .feature-card,
  .feature-card__visual,
  .feature-card__visual::after,
  .feature-card__body,
  .feature-card h3,
  .feature-card p {
    transition: none;
  }

  .feature-card:hover {
    transform: none;
  }

  .feature-card:hover .feature-card__visual {
    transform: none;
  }

  .hero-fan__item {
    transition: none;
  }
}

/* —— Feature guide (guidance.vue) —— */
#guide {
  position: relative;
  overflow: hidden;
}

.guide-deco {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  filter: blur(60px);
  opacity: 0.45;
}

.guide-deco--1 {
  width: 320px;
  height: 320px;
  top: 8%;
  right: -8%;
  background: rgba(var(--brand-blue-rgb), 0.2);
}

.guide-deco--2 {
  width: 280px;
  height: 280px;
  bottom: 12%;
  left: -6%;
  background: rgba(248, 210, 124, 0.18);
}

.section--cream {
  background:
    radial-gradient(ellipse 70% 42% at 50% 0%, rgba(248, 210, 124, 0.1), transparent 52%),
    radial-gradient(ellipse 50% 40% at 95% 90%, rgba(var(--brand-blue-rgb), 0.07), transparent 50%),
    linear-gradient(180deg, var(--bg) 0%, #ebe8e2 100%);
}

.section--cream::before {
  display: none;
}

.section--alt::before {
  content: "";
  position: absolute;
  width: 320px;
  height: 320px;
  bottom: -100px;
  left: -60px;
  border-radius: 50%;
  background: rgba(var(--brand-blue-rgb), 0.14);
  filter: blur(65px);
  pointer-events: none;
}

#highlights {
  padding-top: 48px;
}

.guide-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin: -24px auto 40px;
  max-width: 720px;
}

.guide-nav a {
  padding: 8px 16px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid rgba(var(--brand-blue-rgb), 0.15);
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--brand-blue-deep);
  transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
}

.guide-nav a:hover {
  background: #fff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-soft);
}

.guide-chapter {
  margin-bottom: 28px;
  padding: 24px 22px 20px;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(var(--brand-blue-rgb), 0.12);
  box-shadow: var(--shadow-soft);
  scroll-margin-top: var(--scroll-offset);
}

.guide-chapter--highlight {
  background: linear-gradient(135deg, #fff 0%, #fff8ea 100%);
}

.guide-chapter__banner {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 56px;
  margin-bottom: 20px;
}

.guide-chapter__banner-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: fill;
  border-radius: 999px;
}

.guide-chapter__banner-icon {
  position: relative;
  z-index: 1;
  width: 42px;
  height: 42px;
  margin-left: 14px;
  flex-shrink: 0;
}

.guide-chapter__banner h3 {
  position: relative;
  z-index: 1;
  margin: 0 0 0 12px;
  font-size: 1.05rem;
  font-weight: 800;
  color: #fff;
  text-shadow: 0 1px 2px rgba(15, 23, 40, 0.2);
}

.guide-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

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

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

.guide-item {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 14px 14px 8px;
  border-radius: 18px;
  background: linear-gradient(180deg, rgba(255, 246, 223, 0.9) 0%, #fff 100%);
  border: 1px solid rgba(var(--brand-blue-rgb), 0.16);
  transition: transform 0.25s, box-shadow 0.25s;
}

.guide-item:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 32px rgba(var(--brand-blue-rgb), 0.12);
}

.guide-item--flip .guide-item__media {
  order: -1;
}

.guide-item__body {
  position: relative;
  padding: 12px 12px 12px 16px;
  border-radius: 12px;
  background: rgba(255, 232, 180, 0.35);
}

.guide-item__body::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 4px;
  height: 36px;
  border-radius: 4px;
  background: linear-gradient(135deg, var(--brand-blue-deep), var(--brand-blue));
}

.guide-item__body--lg {
  padding: 20px 20px 20px 24px;
}

.guide-item__body h4 {
  margin: 0 0 8px;
  font-size: 0.98rem;
  line-height: 1.4;
}

.guide-item__body h4 span {
  color: var(--brand-blue);
  margin-right: 4px;
}

.guide-item__body p {
  margin: 0;
  font-size: 0.86rem;
  color: var(--ink-muted);
  line-height: 1.6;
}

.guide-item__media {
  margin: 0;
  display: flex;
  justify-content: center;
  align-items: flex-end;
  min-height: 160px;
  padding: 4px 8px 0;
}

.guide-item__media img {
  width: auto;
  max-width: 100%;
  max-height: 200px;
  object-fit: contain;
  filter: drop-shadow(0 10px 20px rgba(15, 23, 40, 0.12));
}

.guide-highlight {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 20px;
  align-items: center;
  padding: 8px 4px;
}

.guide-highlight__media {
  margin: 0;
  display: flex;
  justify-content: center;
}

.guide-highlight__media img {
  max-height: 220px;
  width: auto;
  max-width: 100%;
  object-fit: contain;
  filter: drop-shadow(0 12px 24px rgba(15, 23, 40, 0.12));
}

.guide-footer {
  margin: 8px 0 0;
  text-align: center;
  font-size: 0.92rem;
  color: var(--ink-soft);
}

/* —— Product highlights (summarized from H5) —— */
.highlight-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.highlight-card {
  padding: 28px 24px;
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, #fff 0%, #fffbf5 100%);
  border: 1px solid rgba(232, 184, 74, 0.2);
  box-shadow: 0 12px 36px rgba(15, 23, 40, 0.06);
}

.highlight-card:nth-child(2) {
  background: linear-gradient(160deg, #fff 0%, #f5f9ff 100%);
  border-color: rgba(var(--brand-blue-rgb), 0.18);
}

.highlight-card:nth-child(3) {
  background: linear-gradient(160deg, #fff 0%, #fffaf0 100%);
}

.highlight-card__label {
  display: inline-block;
  margin-bottom: 12px;
  padding: 4px 12px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--gold-deep), var(--gold));
  font-size: 0.75rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.04em;
}

.highlight-card:nth-child(2) .highlight-card__label {
  background: linear-gradient(135deg, var(--brand-blue-deep), var(--brand-blue));
}

.highlight-card h3 {
  margin: 0 0 14px;
  font-size: 1.1rem;
  color: var(--navy);
}

.highlight-card ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.highlight-card li {
  position: relative;
  padding-left: 16px;
  margin-bottom: 10px;
  font-size: 0.88rem;
  color: var(--ink-muted);
  line-height: 1.55;
}

.highlight-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gold-deep);
}

.highlight-card:nth-child(2) li::before {
  background: var(--brand-blue);
}

.highlight-card li:last-child {
  margin-bottom: 0;
}

/* —— Invite friends (inviteFriends.vue) —— */
.section--invite {
  background: var(--bg-soft);
}

.invite-wrap {
  max-width: 720px;
}

.invite-top {
  margin-bottom: 12px;
}

.invite-hero {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
}

.invite-hero img {
  width: 100%;
  height: auto;
  display: block;
}

.invite-reward {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin: 28px 24px 20px;
  padding: 12px 14px 12px 72px;
  border-radius: 8px;
  background: linear-gradient(90deg, #ffd69c 0%, #f86c77 100%);
  box-shadow: 0 8px 24px rgba(248, 108, 119, 0.25);
}

.invite-reward__gift {
  position: absolute;
  left: -8px;
  top: -18px;
  width: 64px;
  height: auto;
}

.invite-reward__text {
  margin: 0;
  font-size: 0.92rem;
  font-weight: 700;
  color: #851a1a;
}

.invite-reward__text strong {
  color: #fff;
}

.invite-reward__tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
  padding: 4px 8px;
  border-radius: 6px;
  background: #ffe896;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--navy);
}

.invite-store-btns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  padding: 0 8px;
}

.invite-store-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 56px;
  padding: 10px 14px;
  border-radius: 14px;
  transition: transform 0.2s, box-shadow 0.2s;
}

.invite-store-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-soft);
}

.invite-store-btn span {
  display: flex;
  flex-direction: column;
  line-height: 1.25;
}

.invite-store-btn strong {
  font-size: 0.95rem;
}

.invite-store-btn small {
  font-size: 0.72rem;
  opacity: 0.88;
}

.invite-store-btn--ios {
  background: #181818;
  color: #fff;
}

.invite-store-btn--android {
  background: #edc670;
  color: #2f240f;
}

.invite-vip-head {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin: 36px 0 28px;
}

.invite-vip-head h3 {
  margin: 0;
  padding: 6px 18px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--brand-blue-deep), var(--brand-blue));
  font-size: 1.15rem;
  font-weight: 800;
  color: #fff;
  white-space: nowrap;
}

.invite-features {
  display: flex;
  flex-direction: column;
  gap: 48px;
  padding-bottom: 16px;
}

.invite-feature {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 140px;
}

.invite-feature--reverse {
  flex-direction: row-reverse;
}

.invite-feature__img {
  position: relative;
  z-index: 2;
  width: min(42%, 180px);
  height: auto;
  flex-shrink: 0;
  margin-top: -20px;
  filter: drop-shadow(0 10px 20px rgba(15, 23, 40, 0.12));
}

.invite-feature--reverse .invite-feature__img {
  margin-left: -8px;
}

.invite-feature__card {
  flex: 1;
  min-height: 120px;
  padding: 22px 20px 22px 100px;
  margin-left: -70px;
  border-radius: 18px;
  border: 3px solid #fff;
  background: #ffe9b4;
  box-shadow: var(--shadow-soft);
}

.invite-feature--reverse .invite-feature__card {
  margin-left: 0;
  margin-right: -70px;
  padding: 22px 100px 22px 20px;
  text-align: right;
}

.invite-feature__card::before {
  content: "";
  display: block;
  width: 36px;
  height: 6px;
  border-radius: 4px;
  background: #f6a33f;
  margin-bottom: 10px;
}

.invite-feature--reverse .invite-feature__card::before {
  margin-left: auto;
}

.invite-feature__card h4 {
  margin: 0 0 8px;
  font-size: 1.1rem;
  font-weight: 800;
  color: #16110b;
}

.invite-feature__card p {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.55;
  color: #7d7d7d;
}

/* —— App store gallery —— */
.store-gallery {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.store-poster {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 14px 36px rgba(15, 23, 40, 0.08);
  border: 1px solid rgba(var(--brand-blue-rgb), 0.16);
  transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
}

.store-poster:hover {
  transform: translateY(-4px);
  border-color: rgba(var(--brand-blue-rgb), 0.32);
  box-shadow: 0 20px 44px rgba(var(--brand-blue-rgb), 0.14);
}

.store-poster img {
  width: 100%;
  height: auto;
  display: block;
}

/* —— Showcase (legacy grid, unused) —— */
.screenshot-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.screenshot-card {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg);
  border: 1px solid rgba(15, 23, 40, 0.06);
  box-shadow: var(--shadow-soft);
  transition: transform 0.25s, box-shadow 0.25s;
}

.screenshot-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.screenshot-card img {
  width: 100%;
  height: auto;
  display: block;
}

.screenshot-card figcaption {
  padding: 12px 14px;
  font-size: 0.88rem;
  font-weight: 600;
  text-align: center;
  color: var(--ink-muted);
  background: var(--bg-alt);
}

/* —— Scenarios —— */
.scenario-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  align-items: stretch;
}

.scenario-card {
  padding: 22px 22px 20px;
  border-radius: var(--radius-lg);
  background: linear-gradient(155deg, #122035 0%, var(--navy-soft) 50%, #1e3558 100%);
  color: #fff;
  box-shadow: 0 16px 40px rgba(15, 23, 40, 0.16);
  border: 1px solid rgba(var(--brand-blue-rgb), 0.22);
}

.scenario-card__tag {
  display: inline-block;
  margin-bottom: 10px;
  padding: 2px 8px;
  border-radius: 6px;
  background: rgba(var(--brand-blue-rgb), 0.2);
  border: 1px solid rgba(var(--brand-blue-rgb), 0.35);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--brand-blue-soft);
}

.scenario-card h3 {
  margin: 0 0 8px;
  font-size: 1.12rem;
}

.scenario-card__lead {
  margin: 0 0 12px;
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.82);
  line-height: 1.55;
}

.scenario-card ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.scenario-card li {
  position: relative;
  padding-left: 14px;
  margin-bottom: 8px;
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.68);
  line-height: 1.5;
}

.scenario-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--gold);
}

.scenario-card li:last-child {
  margin-bottom: 0;
}

.scenario-card p {
  margin: 0;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.75);
  line-height: 1.65;
}

/* —— Download CTA —— */
.section--cta {
  padding-top: 32px;
  padding-bottom: 100px;
  background:
    radial-gradient(ellipse 70% 55% at 20% 100%, rgba(var(--brand-blue-rgb), 0.1), transparent 55%),
    radial-gradient(ellipse 75% 60% at 50% 100%, rgba(248, 210, 124, 0.2), transparent 58%),
    linear-gradient(180deg, var(--bg) 0%, #e8e4dc 100%);
}

.download-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  padding: 56px;
  border-radius: 28px;
  background: linear-gradient(135deg, var(--navy) 0%, #1e3354 50%, #243a5c 100%);
  color: #fff;
  box-shadow: 0 28px 64px rgba(15, 23, 40, 0.22);
  border: 1px solid rgba(var(--brand-blue-rgb), 0.2);
}

.eyebrow--light {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.15);
  color: rgba(255, 255, 255, 0.85);
}

.download-copy h2 {
  margin: 0 0 12px;
  font-size: clamp(1.6rem, 2.5vw, 2rem);
}

.download-copy > p {
  margin: 0 0 12px;
  color: rgba(255, 255, 255, 0.78);
}

.download-note a {
  color: var(--brand-blue-soft);
}

.download-note a:hover {
  color: #fff;
}

.store-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  width: min(100%, 280px);
  margin-inline: auto;
}

.store-btn {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  border-radius: 14px;
  background: #fff;
  color: var(--ink);
  font-weight: 600;
  transition: transform 0.2s;
}

.store-btn img {
  flex-shrink: 0;
  /* SVG 为白色填充，白底按钮需反色才能看见 */
  filter: brightness(0);
  opacity: 0.88;
}

.store-btn:hover {
  transform: translateY(-2px);
}

.store-btn span {
  display: flex;
  flex-direction: column;
  line-height: 1.25;
}

.store-btn small {
  font-size: 0.68rem;
  font-weight: 500;
  color: var(--ink-soft);
}

.store-btn--outline {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.35);
  color: #fff;
}

.store-btn--outline small {
  color: rgba(255, 255, 255, 0.65);
}

/* —— Footer —— */
.site-footer {
  padding: 40px 0 48px;
  background: #0c1018;
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.88rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: center;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.footer-brand img {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  flex-shrink: 0;
}

.footer-brand strong {
  display: block;
  color: #fff;
}

.footer-brand p {
  margin: 4px 0 0;
  font-size: 0.82rem;
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a:hover {
  color: var(--brand-blue-soft);
}

.footer-copy {
  grid-column: 1 / -1;
  margin: 8px 0 0;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.45);
  font-size: 0.8rem;
  line-height: 1.7;
}

.footer-copy a {
  color: rgba(255, 255, 255, 0.55);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.footer-copy a:hover {
  color: rgba(255, 255, 255, 0.85);
}

/* —— Reveal animation —— */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
  transition-delay: var(--delay, 0ms);
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* —— Responsive —— */
@media (min-width: 1280px) {
  :root {
    --container: min(1320px, calc(100% - 64px));
  }

  .hero-grid {
    gap: 40px 56px;
    grid-template-columns: minmax(0, 0.95fr) minmax(480px, 1.25fr);
  }

  .hero-showcase.hero-fan {
    --fan-w: min(100%, 620px);
    --fan-item: 300px;
    --fan-stage-h: clamp(500px, 38vw, 660px);
    --fan-x1: 84px;
    --fan-x2: 168px;
    --fan-x3: 236px;
    --fan-rot3: 32deg;
    --fan-y1: -12px;
    --fan-y2: -18px;
    --fan-y3: -24px;
  }

  .hero-copy__main {
    padding-top: 56px;
  }
}

@media (max-width: 1024px) {
  .hero {
    overflow: hidden;
    padding-top: calc(var(--header-h) + 10px);
    padding-bottom: 12px;
  }

  .hero-grid {
    display: flex;
    flex-direction: column;
    gap: 8px;
    grid-template-columns: none;
  }

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

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

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

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

  .hero-copy {
    min-height: 0;
    justify-content: flex-start;
    gap: 20px;
    flex: 0 0 auto;
    width: 100%;
  }

  .hero-copy__main {
    padding-top: 0;
  }

  .hero-visual {
    order: -1;
    width: 100vw;
    max-width: 100vw;
    margin-inline: calc(50% - 50vw);
    min-height: 0;
    flex: 0 0 auto;
    padding-inline: 0;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    overflow: hidden;
  }

  .hero-showcase.hero-fan {
    --fan-w: 100%;
    --fan-item: 40vw;
    --fan-stage-w: 100%;
    --fan-stage-h: 78vw;
    --fan-x1: 17vw;
    --fan-x2: 30vw;
    --fan-x3: 40vw;
    --fan-rot1: 10deg;
    --fan-rot2: 17deg;
    --fan-rot3: 22deg;
    --fan-y1: -1vw;
    --fan-y2: -1.5vw;
    --fan-y3: -2vw;
    --fan-scale-edge: 0.8;
    --fan-scale-near: 0.9;
    --fan-scale-far: 0.86;
    width: 100%;
    max-width: none;
    margin-inline: 0;
    display: flex;
    justify-content: center;
    gap: 0;
  }

  .hero-fan__stage {
    width: 100%;
    max-width: 100%;
    margin-inline: 0;
  }

  .hero-fan__dots {
    bottom: 1.5vw;
    gap: 4px;
  }

  .hero-fan__dot {
    width: 5px;
    height: 5px;
  }

  .hero-fan__dot.is-active {
    transform: scale(1.2);
  }

  .hero-fan__item {
    top: 50%;
    width: min(42vw, var(--fan-item));
    border-width: 2px;
  }

  .hero-fan__item.is-active {
    box-shadow:
      0 0 0 1px rgba(255, 255, 255, 0.4),
      0 12px 28px rgba(15, 23, 40, 0.16);
  }

  .hero-copy .hero-foot {
    margin-top: 0;
    padding-top: 14px;
    margin-bottom: 0;
  }

  .section {
    padding: 56px 0;
  }

  #highlights {
    padding-top: 24px;
  }

  .hero-banner {
    width: min(100%, 340px);
  }

  .guide-grid,
  .guide-grid--2,
  .guide-grid--3 {
    grid-template-columns: 1fr;
  }

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

  .guide-nav {
    margin-top: -8px;
  }

  .highlight-row {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav-panel {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    padding: 20px 24px;
    gap: 8px;
    background: rgba(var(--bg-rgb), 0.98);
    border-bottom: 1px solid rgba(15, 23, 40, 0.08);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.3s, opacity 0.3s;
  }

  .nav-panel a {
    font-size: 1.06rem;
    padding: 10px 12px;
    border-radius: 10px;
    -webkit-tap-highlight-color: transparent;
  }

  .nav-panel a:active:not(.nav-cta) {
    background: rgba(var(--brand-blue-rgb), 0.1);
  }

  .nav-panel a.is-active:not(.nav-cta) {
    box-shadow: none;
    background: rgba(var(--brand-blue-rgb), 0.12);
    color: var(--brand-blue-deep);
  }

  .nav-panel.is-open {
    transform: none;
    opacity: 1;
    pointer-events: auto;
  }

  .hero {
    padding-top: calc(var(--header-h) + 6px);
    padding-bottom: 6px;
  }

  .section {
    padding: 44px 0;
  }

  .section-head {
    margin-bottom: 24px;
  }

  #highlights {
    padding-top: 28px;
  }

  #scenarios {
    padding-top: 40px;
    padding-bottom: 24px;
  }

  #scenarios .section-head {
    margin-bottom: 20px;
  }

  .scenario-row {
    gap: 12px;
  }

  .scenario-card {
    padding: 18px 16px 16px;
  }

  .scenario-card li {
    font-size: 0.8rem;
  }

  .section--cta {
    padding-top: 20px;
    padding-bottom: 64px;
  }

  .hero-metrics {
    gap: 20px;
  }

  .hero-showcase.hero-fan {
    --fan-item: 38vw;
    --fan-stage-h: 74vw;
    --fan-x1: 16vw;
    --fan-x2: 28vw;
  }

  .hero-fan__item {
    width: min(40vw, var(--fan-item));
  }

  .hero-lead {
    margin-bottom: 20px;
    font-size: 0.98rem;
  }

  .hero-actions {
    margin-bottom: 20px;
  }

  .hero-actions .btn {
    flex: 1 1 calc(50% - 7px);
    min-width: 0;
    padding-inline: 16px;
    font-size: 0.88rem;
  }

  .feature-grid,
  .scenario-row,
  .store-grid,
  .screenshot-grid {
    grid-template-columns: 1fr;
  }

  .download-block {
    padding: 32px 24px;
  }

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

  .footer-links {
    flex-wrap: wrap;
    gap: 16px;
  }

  .invite-store-btns {
    grid-template-columns: 1fr;
  }

  .invite-feature,
  .invite-feature--reverse {
    flex-direction: column;
    align-items: stretch;
  }

  .invite-feature__img {
    width: min(70%, 200px);
    margin: 0 auto -36px;
  }

  .invite-feature__card,
  .invite-feature--reverse .invite-feature__card {
    margin: 0;
    padding: 46px 18px 20px;
    text-align: left;
  }

  .invite-feature--reverse .invite-feature__card::before {
    margin-left: 0;
  }

  .invite-reward {
    margin-inline: 4px;
    padding-left: 60px;
  }
}