/* ==========================================================
   Dreampaper · Fan Fiction Studio
   同人小说 — 在别人的世界，写自己的梦
   ========================================================== */
:root {
  --paper: #FBF7F2;
  --paper-deep: #F2EBE2;
  --paper-mint: #EEF5ED;
  --panel: #FFFEFC;
  --ink: #38334E;
  --ink-soft: #6D6880;
  --line: #E7DED5;
  --violet: #6A5AF9;
  --violet-deep: #513DCB;
  --violet-soft: #ECEAFD;
  --coral: #FF7A66;
  --coral-deep: #E35C4C;
  --coral-soft: #FFF0EB;
  --sun: #FFC54D;
  --sage: #C3E4D4;
  --sage-deep: #60A98A;
  --sky: #BDDCED;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
}

body {
  font-family: system-ui, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  background-color: var(--paper);
  background-image:
    radial-gradient(circle at 8% 14%, rgba(255, 197, 77, .13), transparent 22%),
    radial-gradient(circle at 96% 88%, rgba(106, 90, 249, .10), transparent 26%),
    radial-gradient(circle at 84% 6%, rgba(255, 122, 102, .10), transparent 22%),
    radial-gradient(circle at 36% 80%, rgba(189, 220, 237, .28), transparent 28%);
  background-attachment: fixed;
  color: var(--ink);
  overflow-x: hidden;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

::selection {
  background: var(--sun);
  color: var(--ink);
}

::-webkit-scrollbar {
  width: 12px;
}
::-webkit-scrollbar-track {
  background: var(--paper);
}
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--violet), var(--coral));
  border-radius: 30px;
  border: 3px solid var(--paper);
}

h1, h2, h3, h4, h5, h6 {
  line-height: 1.22;
  font-weight: 900;
  word-break: break-word;
}

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

a {
  transition: all .3s ease;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 2;
}

.section {
  padding: 110px 0;
  position: relative;
  overflow: hidden;
  scroll-margin-top: 70px;
}

.section:nth-child(even) {
  background:
    radial-gradient(circle at 0% 0%, rgba(106, 90, 249, .06), transparent 24%),
    radial-gradient(circle at 100% 100%, rgba(255, 122, 102, .06), transparent 24%),
    var(--paper-deep);
}

.section:nth-child(even)::before {
  content: "✦";
  position: absolute;
  top: 22px;
  right: 30px;
  font-size: 18px;
  color: rgba(106, 90, 249, .16);
  pointer-events: none;
  animation: spark 3.2s ease-in-out infinite;
}

/* ---------------------------------- 顶部导航 ---------------------------------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(251, 247, 242, .78);
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  border-bottom: 1px solid rgba(106, 90, 249, .12);
  box-shadow: 0 1px 0 rgba(255, 255, 255, .7) inset;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  gap: 16px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 900;
  font-size: 1.2rem;
  text-decoration: none;
  color: var(--ink);
  letter-spacing: .01em;
  position: relative;
  z-index: 1;
}

.logo::after {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-left: 2px;
  margin-top: 6px;
  border-radius: 50%;
  background: var(--coral);
  box-shadow: 0 0 0 4px var(--coral-soft);
}

.logo-icon {
  width: 40px;
  height: 40px;
  border-radius: 16px 6px 16px 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff !important;
  font-size: 1.1rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--violet), var(--coral));
  box-shadow: 5px 5px 0 rgba(106, 90, 249, .20);
  transform: rotate(-5deg);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  list-style: none;
  margin-left: auto;
}

.main-nav li {
  list-style: none;
}

.main-nav a {
  text-decoration: none;
  font-size: .92rem;
  font-weight: 600;
  padding: 8px 13px;
  border-radius: 999px;
  color: var(--ink-soft);
  position: relative;
}

.main-nav a:not(.nav-cta)::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 3px;
  height: 3px;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--violet), var(--coral));
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .35s cubic-bezier(.22, 1, .36, 1);
}

.main-nav a:not(.nav-cta):hover {
  color: var(--violet-deep);
  background: rgba(106, 90, 249, .05);
}

.main-nav a:not(.nav-cta):hover::after {
  transform: scaleX(1);
}

.nav-cta {
  background: linear-gradient(135deg, var(--violet), var(--coral));
  color: #fff !important;
  font-weight: 800;
  border: none;
  padding: 10px 25px !important;
  box-shadow: 0 8px 0 rgba(106, 90, 249, .18), 0 16px 24px -14px rgba(106, 90, 249, .55);
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 11px 0 rgba(106, 90, 249, .14), 0 24px 34px -14px rgba(106, 90, 249, .65);
}

.menu-toggle {
  display: none;
}

/* ---------------------------------- Hero ---------------------------------- */
.hero {
  position: relative;
  min-height: calc(100vh - 76px);
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 180px 0 120px;
  isolation: isolate;
}

.hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  top: 10%;
  right: -8%;
  width: 56vw;
  height: 56vw;
  max-width: 760px;
  max-height: 760px;
  min-width: 420px;
  min-height: 420px;
  border-radius: 46% 54% 38% 62% / 55% 43% 57% 45%;
  background:
    radial-gradient(circle at 35% 35%, rgba(195, 228, 212, .85), transparent 58%),
    radial-gradient(circle at 75% 45%, rgba(255, 197, 77, .4), transparent 52%),
    radial-gradient(circle at 55% 80%, rgba(255, 122, 102, .3), transparent 55%);
  filter: blur(6px);
  animation: blob-morph 13s ease-in-out infinite alternate;
}

.hero::after {
  content: "";
  position: absolute;
  z-index: -1;
  left: -46px;
  bottom: 10%;
  width: 180px;
  height: 180px;
  border-radius: 42% 58% 55% 45% / 54% 46% 54% 46%;
  border: 14px dotted rgba(106, 90, 249, .12);
  animation: float-slow 8s ease-in-out infinite;
}

.hero .container {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 48px;
  width: 100%;
}

.hero-content {
  flex: 1 1 58%;
  min-width: 320px;
  max-width: 720px;
  position: relative;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .18em;
  padding: 8px 20px 8px 15px;
  border-radius: 999px;
  margin-bottom: 24px;
  background: var(--violet-soft);
  color: var(--violet-deep);
  box-shadow: inset 0 0 0 1px rgba(106, 90, 249, .12);
}

.hero-eyebrow::before,
.hero-eyebrow::after {
  content: "✦";
  font-size: .8rem;
  color: var(--coral);
}

.hero h1 {
  font-size: clamp(2.2rem, 4.8vw, 4.1rem);
  line-height: 1.12;
  margin-bottom: 28px;
  color: #373060;
  letter-spacing: -0.02em;
}

.hero h1::after {
  content: "✦";
  display: inline-block;
  margin-left: 16px;
  color: var(--coral);
  font-size: clamp(1.1rem, 2vw, 1.9rem);
  animation: spark 2.8s ease-in-out infinite;
}

.hero p {
  font-size: 1.05rem;
  color: var(--ink-soft);
  max-width: 500px;
  margin-bottom: 38px;
  line-height: 1.9;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

.hero-image {
  flex: 1 1 34%;
  min-width: 300px;
  position: relative;
  border-radius: 46% 54% 62% 38% / 43% 45% 55% 57%;
  overflow: hidden;
  margin: 0 auto;
  background: linear-gradient(135deg, var(--sage), var(--sky));
  box-shadow:
    22px 22px 0 rgba(195, 228, 212, .55),
    46px 46px 90px -50px rgba(106, 90, 249, .6);
  animation: float-slow 7s ease-in-out infinite;
}

.hero-image::after {
  content: "";
  position: absolute;
  inset: 18px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, .5);
  pointer-events: none;
}

.hero-image img {
  width: 100%;
  height: 100%;
  min-height: 340px;
  object-fit: cover;
  filter: saturate(.92) contrast(1.03);
  transform: scale(1.02);
  transition: transform 1.2s cubic-bezier(.22, 1, .36, 1);
}

.hero-image:hover img {
  transform: scale(1.08) rotate(1deg);
}

/* ---------------------------------- 按钮 ---------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border: none;
  cursor: pointer;
  text-decoration: none;
  font-family: inherit;
  font-size: .92rem;
  font-weight: 800;
  letter-spacing: .02em;
  padding: 15px 34px;
  border-radius: 999px;
  transition: transform .3s cubic-bezier(.22, 1, .36, 1), box-shadow .3s, background .3s, color .3s;
}

.btn-primary {
  background: linear-gradient(135deg, var(--violet), var(--coral));
  color: #fff;
  box-shadow:
    0 9px 0 rgba(106, 90, 249, .18),
    0 24px 38px -18px rgba(106, 90, 249, .7);
}

.btn-primary:hover {
  transform: translateY(-4px);
  box-shadow:
    0 13px 0 rgba(106, 90, 249, .12),
    0 28px 44px -16px rgba(106, 90, 249, .7);
}

.btn-primary:active {
  transform: translateY(4px);
  box-shadow:
    0 3px 0 rgba(106, 90, 249, .20),
    0 18px 30px -22px rgba(106, 90, 249, .6);
}

.btn-outline {
  background: rgba(255, 254, 252, .7);
  border: 2px solid rgba(106, 90, 249, .4);
  color: var(--violet-deep);
  box-shadow: 0 0 0 0 rgba(106, 90, 249, .1);
}

.btn-outline:hover {
  border-color: var(--violet);
  background: var(--violet-soft);
  transform: translateY(-4px);
  box-shadow: 0 16px 24px -16px rgba(106, 90, 249, .5);
}

/* ---------------------------------- 区块标签与标题 ---------------------------------- */
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: .79rem;
  font-weight: 800;
  letter-spacing: .16em;
  margin-bottom: 18px;
  padding: 8px 20px;
  border-radius: 999px;
  background: var(--coral-soft);
  color: var(--coral-deep);
  box-shadow: inset 0 0 0 1px rgba(255, 122, 102, .16);
}

.section-label::before {
  content: "✦";
  color: var(--coral);
  font-size: .85rem;
}

.section-title {
  font-size: clamp(1.9rem, 4vw, 3.1rem);
  margin-bottom: 16px;
  letter-spacing: -.01em;
  color: var(--ink);
  position: relative;
}

.section-title::after {
  content: "";
  display: block;
  width: 80px;
  height: 8px;
  margin-top: 10px;
  background-image: radial-gradient(circle at center, var(--coral) 45%, transparent 48%);
  background-size: 10px 10px;
  background-repeat: repeat-x;
}

.text-center .section-title::after,
.section-title.text-center::after {
  margin-left: auto;
  margin-right: auto;
}

.section-desc {
  color: var(--ink-soft);
  max-width: 620px;
  margin-bottom: 52px;
  line-height: 1.9;
}

.text-center .section-desc {
  margin-left: auto;
  margin-right: auto;
}

/* ---------------------------------- 卡片网格 ---------------------------------- */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(255px, 1fr));
  gap: 30px;
}

.category-card {
  position: relative;
  padding: 30px;
  border-radius: 35px 16px 35px 16px;
  border: 1.5px solid rgba(219, 209, 200, .75);
  background: rgba(255, 254, 252, .88);
  overflow: hidden;
  transition: transform .45s cubic-bezier(.22, 1, .36, 1), box-shadow .45s, border-color .45s;
  box-shadow:
    7px 7px 0 rgba(234, 218, 215, .45),
    0 28px 44px -40px rgba(87, 72, 166, .4);
}

.category-card::before {
  content: "";
  position: absolute;
  top: -40px;
  right: -40px;
  width: 110px;
  height: 110px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 197, 77, .3), transparent 70%);
  transition: transform .5s ease;
}

.category-card::after {
  content: "✎";
  position: absolute;
  top: 23px;
  right: 24px;
  font-size: 22px;
  color: rgba(106, 90, 249, .35);
  opacity: 0;
  transform: rotate(-12deg);
  transition: all .4s ease;
}

.category-card:hover {
  transform: translateY(-12px) rotate(-.6deg);
  border-color: rgba(106, 90, 249, .25);
  box-shadow:
    15px 18px 0 rgba(255, 197, 77, .22),
    0 36px 50px -38px rgba(87, 72, 166, .55);
}

.category-card:hover::after {
  opacity: 1;
  transform: rotate(16deg);
}

.card-icon {
  width: 58px;
  height: 58px;
  border-radius: 18px 28px 18px 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.5rem;
  color: #fff;
  background: linear-gradient(135deg, var(--violet), var(--coral));
  box-shadow: 5px 5px 0 rgba(106, 90, 249, .16);
  transform: rotate(-4deg);
  transition: transform .4s cubic-bezier(.22, 1, .36, 1);
}

.category-card:hover .card-icon {
  transform: rotate(5deg) scale(1.08);
}

.category-card:nth-child(even) .card-icon {
  background: linear-gradient(135deg, var(--coral), var(--sun));
}

.category-card:nth-child(3n) .card-icon {
  background: linear-gradient(135deg, #49B69E, var(--violet));
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: .88rem;
  font-weight: 800;
  text-decoration: none;
  color: var(--violet-deep);
  margin-top: 6px;
  transition: color .3s;
}

.card-link::after {
  content: "→";
  font-size: 1.15rem;
  transition: transform .3s;
}

.category-card:hover .card-link {
  color: var(--coral-deep);
}

.category-card:hover .card-link::after {
  transform: translateX(5px);
}

/* ---------------------------------- 特性区块 ---------------------------------- */
.feature-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 84px;
  align-items: center;
  margin-bottom: 40px;
}

.feature-block:last-child {
  margin-bottom: 0;
}

.feature-block > .feature-image {
  position: relative;
  z-index: 1;
  border-radius: 40% 60% 64% 36% / 42% 38% 62% 58%;
  overflow: hidden;
  min-height: 280px;
  background: linear-gradient(145deg, var(--sage), var(--sky));
  box-shadow:
    20px 20px 0 rgba(255, 197, 77, .24),
    0 40px 60px -48px rgba(87, 72, 166, .5);
}

.feature-block > .feature-image::before {
  content: "";
  position: absolute;
  z-index: 2;
  inset: 16px;
  border: 1px solid rgba(255, 255, 255, .55);
  border-radius: inherit;
  pointer-events: none;
}

.feature-block > .feature-image img {
  width: 100%;
  height: 100%;
  min-height: 280px;
  object-fit: cover;
  aspect-ratio: 4 / 3;
  filter: saturate(.9) contrast(1.02);
  transition: transform .8s cubic-bezier(.22, 1, .36, 1);
}

.feature-block > .feature-image:hover img {
  transform: scale(1.05);
}

.feature-text {
  padding: 10px 0;
}

.feature-text .section-title {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  margin-bottom: 22px;
}

.feature-text .section-desc {
  margin-bottom: 26px;
  max-width: 500px;
}

.feature-list {
  list-style: none;
}

.feature-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 9px 0;
  font-size: .97rem;
  font-weight: 600;
  color: var(--ink);
}

.feature-list li::before {
  content: "✦";
  font-size: .85rem;
  font-weight: 400;
  color: var(--violet);
  background: var(--violet-soft);
  width: 27px;
  height: 27px;
  flex: 0 0 27px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.feature-block:nth-of-type(even) .feature-image {
  order: 2;
}

.feature-block:nth-of-type(even) .feature-text {
  order: 1;
}

/* ---------------------------------- 数据条 ---------------------------------- */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  margin-top: 24px;
}

.stat-item {
  padding: 34px 20px 30px;
  border-radius: 48px 18px 48px 18px;
  border: 1px solid rgba(255, 255, 255, .8);
  text-align: center;
  background: rgba(255, 254, 252, .85);
  box-shadow:
    0 2px 0 rgba(255, 255, 255, .9) inset,
    0 18px 34px -30px rgba(87, 72, 166, .5);
  transition: transform .4s cubic-bezier(.22, 1, .36, 1), box-shadow .4s;
}

.stat-item:hover {
  transform: translateY(-8px);
  box-shadow:
    10px 12px 0 rgba(106, 90, 249, .12),
    0 24px 38px -26px rgba(87, 72, 166, .6);
}

.stat-item:nth-child(1) {
  background: var(--violet-soft);
}

.stat-item:nth-child(2) {
  background: var(--coral-soft);
}

.stat-item:nth-child(3) {
  background: #FFF7E6;
}

.stat-item:nth-child(4) {
  background: #EAF6EE;
}

.stat-number {
  font-size: 2.4rem;
  font-weight: 900;
  line-height: 1.1;
  color: var(--violet);
  background: linear-gradient(135deg, var(--violet-deep), var(--coral-deep));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.stat-label {
  display: block;
  font-size: .86rem;
  font-weight: 600;
  color: var(--ink-soft);
  margin-top: 10px;
}

/* ---------------------------------- 内容墙 ---------------------------------- */
.content-wall {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 30px;
}

.content-wall-item {
  position: relative;
  background: rgba(255, 254, 252, .9);
  border-radius: 30px 13px 30px 13px;
  overflow: hidden;
  border: 1px solid rgba(219, 209, 200, .6);
  box-shadow:
    0 2px 0 rgba(255, 255, 255, .8) inset,
    0 24px 38px -36px rgba(87, 72, 166, .5);
  transition: transform .45s cubic-bezier(.22, 1, .36, 1), box-shadow .45s;
}

.content-wall-item::before {
  content: "";
  position: absolute;
  inset: 12px;
  border-radius: 22px 9px 22px 9px;
  border: 1px dashed rgba(106, 90, 249, .28);
  z-index: 3;
  pointer-events: none;
  opacity: 0;
  transform: scale(.94);
  transition: all .45s cubic-bezier(.22, 1, .36, 1);
}

.content-wall-item:hover {
  transform: translateY(-10px) rotate(.4deg);
  box-shadow:
    10px 12px 0 rgba(255, 197, 77, .2),
    0 34px 44px -30px rgba(87, 72, 166, .65);
}

.content-wall-item:hover::before {
  opacity: 1;
  transform: scale(1);
}

.content-wall-item img {
  width: 100%;
  height: 215px;
  object-fit: cover;
  filter: saturate(.9);
  transition: transform 1.2s cubic-bezier(.22, 1, .36, 1);
}

.content-wall-item:hover img {
  transform: scale(1.06);
}

.content-wall-body {
  padding: 24px 24px 26px;
}

.content-wall-body h3 {
  font-size: 1.14rem;
  margin-bottom: 8px;
  color: var(--ink);
  letter-spacing: 0;
}

.content-wall-body p {
  color: var(--ink-soft);
  font-size: .88rem;
  line-height: 1.7;
}

/* ---------------------------------- FAQ ---------------------------------- */
.faq-list {
  max-width: 820px;
  margin: 0 auto;
}

.faq-item {
  background: rgba(255, 254, 252, .86);
  border: 1.5px solid rgba(219, 209, 200, .65);
  border-radius: 20px;
  margin-bottom: 14px;
  overflow: hidden;
  cursor: pointer;
  transition: border-color .35s, box-shadow .35s, transform .35s;
}

.faq-item:hover {
  border-color: rgba(106, 90, 249, .35);
  transform: translateX(4px);
}

.faq-item.open {
  border-color: rgba(106, 90, 249, .45);
  box-shadow:
    9px 9px 0 rgba(106, 90, 249, .10),
    0 20px 34px -30px rgba(87, 72, 166, .55);
}

.faq-item .faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 26px;
  font-weight: 800;
  font-size: 1rem;
  color: var(--ink);
  letter-spacing: 0;
}

.faq-item .faq-question::after {
  content: "+";
  flex: 0 0 32px;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--coral-soft);
  color: var(--coral-deep);
  font-size: 1.2rem;
  font-weight: 800;
  transition: transform .4s, background .4s;
}

.faq-item.open .faq-question::after {
  content: "−";
  transform: rotate(180deg);
  background: var(--violet-soft);
  color: var(--violet-deep);
}

.faq-item .faq-answer {
  display: none;
  padding: 0 30px 24px 30px;
  color: var(--ink-soft);
  opacity: .95;
  font-size: .94rem;
  line-height: 1.85;
  border-left: 2px solid transparent;
}

.faq-item.open .faq-answer {
  display: block;
}

/* ---------------------------------- CTA 横幅 ---------------------------------- */
.cta-banner {
  position: relative;
  overflow: hidden;
  padding: 84px 60px;
  text-align: center;
  border-radius: 40px 16px 40px 16px;
  color: #fff;
  background:
    radial-gradient(circle at 16% 26%, rgba(255, 255, 255, .28), transparent 12%),
    radial-gradient(circle at 82% 66%, rgba(255, 255, 255, .22), transparent 15%),
    radial-gradient(circle at 50% 120%, rgba(255, 197, 77, .5), transparent 46%),
    linear-gradient(130deg, #7E6BFF 0%, var(--coral) 55%, #FFB86B 100%);
  box-shadow:
    22px 22px 0 rgba(195, 228, 212, .55),
    0 44px 70px -48px rgba(106, 90, 249, .65);
  isolation: isolate;
}

.cta-banner::before {
  content: "✦";
  position: absolute;
  left: 7%;
  top: 20%;
  font-size: 44px;
  color: rgba(255, 255, 255, .3);
  transform: rotate(-15deg);
  z-index: -1;
}

.cta-banner::after {
  content: "✦";
  position: absolute;
  right: 8%;
  bottom: 22%;
  font-size: 30px;
  color: rgba(255, 255, 255, .35);
  transform: rotate(15deg);
  z-index: -1;
}

.cta-banner h2 {
  color: #fff;
  font-size: clamp(1.9rem, 4vw, 3rem);
  letter-spacing: -.02em;
  margin-bottom: 14px;
}

.cta-banner h2::after {
  content: none;
}

.cta-banner p {
  max-width: 560px;
  margin: 0 auto 34px;
  color: rgba(255, 255, 255, .9);
  font-size: 1.02rem;
  line-height: 1.9;
}

.cta-banner .btn-primary {
  background: #fff;
  color: var(--violet-deep);
  box-shadow:
    0 9px 0 rgba(106, 90, 249, .25),
    0 22px 40px -20px rgba(80, 40, 120, .45);
}

.cta-banner .btn-primary:hover {
  transform: translateY(-4px);
  box-shadow:
    0 13px 0 rgba(106, 90, 249, .18),
    0 28px 44px -20px rgba(80, 40, 120, .5);
}

/* ---------------------------------- 页脚 ---------------------------------- */
.site-footer {
  padding: 88px 0 30px;
  position: relative;
  background:
    radial-gradient(circle at 12% 0%, rgba(255, 197, 77, .18), transparent 34%),
    radial-gradient(circle at 94% 100%, rgba(106, 90, 249, .12), transparent 30%),
    linear-gradient(180deg, var(--paper-mint), #E4F1E8);
  border-top: 2px solid rgba(106, 90, 249, .12);
}

.site-footer::before {
  content: "";
  position: absolute;
  top: -7px;
  left: 8%;
  right: 8%;
  height: 14px;
  background-image: radial-gradient(circle at 8px 8px, var(--coral) 4px, transparent 5px);
  background-size: 22px 22px;
  background-repeat: repeat-x;
  opacity: .5;
  pointer-events: none;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 44px;
  align-items: start;
}

.footer-brand {
  max-width: 280px;
}

.footer-brand .logo {
  margin-bottom: 14px;
}

.footer-brand p {
  color: var(--ink-soft);
  font-size: .92rem;
  line-height: 1.8;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-col h4 {
  font-size: .82rem;
  font-weight: 800;
  letter-spacing: .18em;
  color: var(--violet-deep);
  margin-bottom: 8px;
  text-transform: uppercase;
}

.footer-col a {
  color: var(--ink-soft);
  text-decoration: none;
  font-size: .92rem;
  font-weight: 600;
  width: fit-content;
  padding: 3px 0;
  position: relative;
}

.footer-col a::before {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--violet), var(--coral));
  border-radius: 4px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .3s;
}

.footer-col a:hover {
  color: var(--violet-deep);
  padding-left: 8px;
}

.footer-col a:hover::before {
  transform: scaleX(.7);
}

.footer-bottom {
  border-top: 1px solid rgba(106, 90, 249, .16);
  margin-top: 52px;
  padding-top: 24px;
  text-align: center;
  font-size: .84rem;
  color: var(--ink-soft);
}

/* ---------------------------------- 工具类 ---------------------------------- */
.text-accent {
  color: var(--coral-deep);
  font-weight: 800;
}

.text-center {
  text-align: center;
}

.seo-description {
  max-width: 620px;
  margin: 0 auto 56px;
  color: var(--ink-soft);
  line-height: 1.9;
  opacity: .9;
}

.mt-0 {
  margin-top: 0 !important;
}

.mb-0 {
  margin-bottom: 0 !important;
}

/* ---------------------------------- 动画 ---------------------------------- */
@keyframes spark {
  0%, 100% { opacity: 1; transform: scale(1) rotate(0deg); }
  50% { opacity: .35; transform: scale(.72) rotate(22deg); }
}

@keyframes float-slow {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-12px) rotate(1deg); }
}

@keyframes blob-morph {
  0% { border-radius: 46% 54% 38% 62% / 55% 43% 57% 45%; transform: translate(0, 0) rotate(0deg); }
  100% { border-radius: 58% 42% 60% 40% / 42% 58% 40% 60%; transform: translate(6%, -4%) rotate(7deg); }
}

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

/* ---------------------------------- 响应式 ---------------------------------- */
@media (max-width: 960px) {
  .feature-block {
    grid-template-columns: 1fr;
    gap: 56px;
  }

  .feature-block > .feature-image,
  .feature-block > .feature-text,
  .feature-block:nth-of-type(even) .feature-image,
  .feature-block:nth-of-type(even) .feature-text {
    order: initial;
  }

  .feature-block > .feature-image {
    max-width: 600px;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 90px 0;
  }

  .feature-block {
    grid-template-columns: 1fr;
    gap: 44px;
  }

  .feature-block > .feature-image {
    order: initial !important;
  }

  .feature-block > .feature-text {
    order: initial !important;
  }

  .stats-bar {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }

  .footer-brand {
    grid-column: 1 / -1;
    max-width: none;
  }

  .main-nav {
    display: none;
  }

  .menu-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border: none;
    border-radius: 14px;
    background: var(--violet-soft);
    color: var(--violet-deep);
    font-size: 26px;
    font-weight: 700;
    cursor: pointer;
    transition: background .3s, transform .3s;
  }

  .menu-toggle:hover {
    background: var(--coral-soft);
    transform: rotate(180deg);
  }

  .main-nav.open {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    position: absolute;
    top: calc(76px + 10px);
    left: 16px;
    right: 16px;
    width: auto;
    background: rgba(255, 254, 252, .96);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 20px;
    border-radius: 28px 12px 28px 12px;
    border: 1px solid rgba(106, 90, 249, .14);
    box-shadow: 0 30px 50px -30px rgba(87, 72, 166, .5);
  }

  .main-nav.open a:not(.nav-cta) {
    width: 100%;
    padding: 12px 16px;
    font-size: 1.05rem;
  }

  .main-nav.open .nav-cta {
    margin-top: 8px;
    padding: 14px 20px !important;
    text-align: center;
    display: flex;
    justify-content: center;
  }

  .main-nav.open a:not(.nav-cta)::after {
    left: 18px;
    right: auto;
    width: 24px;
  }

  .hero {
    padding: 130px 0 80px;
    min-height: auto;
  }

  .hero .container {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 56px;
  }

  .hero-content {
    flex: 1 1 auto;
    max-width: none;
    width: 100%;
  }

  .hero-image {
    flex: 1 1 auto;
    width: 100%;
    min-width: 0;
    max-width: 620px;
    border-radius: 38% 62% 56% 44% / 48% 40% 60% 52%;
  }

  .hero-image img {
    min-height: 280px;
  }

  .hero-buttons {
    flex-wrap: wrap;
  }

  .cta-banner {
    padding: 60px 26px;
    border-radius: 28px 14px 28px 14px;
  }
}

@media (max-width: 480px) {
  .cards-grid,
  .content-wall,
  .stats-bar {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .hero-buttons {
    flex-direction: column;
  }

  .hero-buttons .btn {
    justify-content: center;
    width: 100%;
  }

  .hero .container {
    gap: 40px;
  }

  .section-title {
    font-size: 1.7rem;
  }

  .section-desc {
    margin-bottom: 34px;
    font-size: .94rem;
  }

  .cta-banner .btn-primary {
    width: 100%;
  }

  .menu-toggle {
    width: 40px;
    height: 40px;
  }
}