/* ==========================================================================
   羽镜世界 · 首页专属样式（landing）
   依赖 base.css 的令牌与通用组件。
   ========================================================================== */

/* ---------- 英雄区 ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: calc(var(--nav-h) + 60px) 0 80px;
  overflow: hidden;
}
.hero__bg {
  position: absolute;
  inset: 0;
  background-color: #05050a;
  background-image: var(--hero-img);
  background-size: cover;
  background-position: center 38%;
  opacity: .5;
  transform: scale(1.06);
  animation: heroDrift 26s ease-in-out infinite alternate;
}
@keyframes heroDrift {
  from { transform: scale(1.06) translate3d(0, 0, 0); }
  to { transform: scale(1.14) translate3d(-1.4%, -1.2%, 0); }
}
.hero__veil {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(1100px 620px at 18% 12%, rgba(201, 162, 39, .16), transparent 62%),
    radial-gradient(900px 560px at 88% 84%, rgba(111, 168, 200, .1), transparent 60%),
    linear-gradient(180deg, rgba(6, 6, 10, .78) 0%, rgba(6, 6, 10, .6) 42%, var(--ink) 96%);
}
.hero__inner { position: relative; z-index: 2; max-width: 880px; }

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 7px 16px 7px 12px;
  margin-bottom: 28px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(201, 162, 39, .07);
  font-size: 12.5px;
  color: var(--gold-lt);
  letter-spacing: .04em;
}
.hero__badge i {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--gold-lt);
  box-shadow: 0 0 0 0 rgba(240, 220, 168, .7);
  animation: pulse 2.4s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(240, 220, 168, .6); }
  70% { box-shadow: 0 0 0 9px rgba(240, 220, 168, 0); }
  100% { box-shadow: 0 0 0 0 rgba(240, 220, 168, 0); }
}

.hero h1 {
  font-size: clamp(34px, 6.2vw, 68px);
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: -.022em;
  margin-bottom: 26px;
}
.hero h1 em {
  font-style: normal;
  background: var(--grad-gold);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero h1 .en {
  display: block;
  margin-top: 16px;
  font-family: var(--font-serif);
  font-size: clamp(13px, 1.5vw, 16px);
  font-weight: 400;
  letter-spacing: .42em;
  text-transform: uppercase;
  color: var(--text-3);
}
.hero__lead {
  font-size: clamp(15px, 1.9vw, 18px);
  line-height: 1.9;
  color: var(--text-2);
  max-width: 660px;
  margin-bottom: 38px;
}
.hero__lead b { color: var(--text); font-weight: 600; }

.hero__actions { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; margin-bottom: 30px; }
.hero__note { font-size: 12.5px; color: var(--text-3); line-height: 1.9; }
.hero__note span { color: var(--gold-lt); }

.hero__scroll {
  position: absolute;
  left: 50%;
  bottom: 26px;
  transform: translateX(-50%);
  z-index: 2;
  width: 1px;
  height: 54px;
  background: linear-gradient(180deg, transparent, var(--line));
}

/* ---------- 事实条 ---------- */
.strip {
  position: relative;
  z-index: 2;
  border-top: 1px solid var(--line-2);
  border-bottom: 1px solid var(--line-2);
  background: var(--ink-2);
}
.strip__grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.strip__cell {
  padding: 30px 22px;
  border-right: 1px solid var(--line-2);
  text-align: center;
}
.strip__cell:last-child { border-right: none; }
.strip__num {
  font-family: var(--font-serif);
  font-size: clamp(26px, 3.4vw, 38px);
  font-weight: 700;
  line-height: 1.1;
  background: var(--grad-gold);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.strip__num small { font-size: .5em; margin-left: 2px; }
.strip__label { margin-top: 8px; font-size: 12.5px; color: var(--text-2); letter-spacing: .04em; }

/* ---------- 亮点卡 ---------- */
.hl { padding: 30px 28px; }
.hl__no {
  font-family: var(--font-serif);
  font-size: 13px;
  letter-spacing: .2em;
  color: var(--gold);
  margin-bottom: 14px;
}
.hl .card__title { font-size: 18px; }
.hl__pt {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px dashed var(--line-2);
  font-size: 13px;
  color: var(--text-2);
  line-height: 1.85;
}
.hl__pt b { color: var(--gold-lt); font-weight: 600; }

/* ---------- 能力总览（左右图文） ---------- */
.cap { display: grid; grid-template-columns: 1.05fr 1fr; gap: 54px; align-items: center; }
.cap--rev .cap__media { order: -1; }
.cap__media {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--ink-3);
  aspect-ratio: 4 / 3;
}
.cap__media img { width: 100%; height: 100%; object-fit: cover; opacity: .82; }
.cap__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(200deg, rgba(201, 162, 39, .14), transparent 46%);
  pointer-events: none;
}
.cap__kicker {
  font-family: var(--font-serif);
  font-size: 12px;
  letter-spacing: .28em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 14px;
}
.cap h3 { font-size: clamp(22px, 2.7vw, 31px); font-weight: 800; margin-bottom: 16px; line-height: 1.3; }
.cap p { font-size: 15px; line-height: 1.9; color: var(--text-2); margin-bottom: 22px; }
.cap__list { display: grid; gap: 12px; }
.cap__list li {
  display: flex;
  gap: 11px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-2);
}
.cap__list li::before {
  content: "";
  flex: 0 0 auto;
  width: 6px; height: 6px;
  margin-top: 10px;
  border-radius: 50%;
  background: var(--grad-gold);
}
.cap__list b { color: var(--text); font-weight: 600; }

/* ---------- 技术底座：抽象引擎示意图 ---------- */
.tech-orb { max-width: 760px; margin: 6px auto 34px; }
.tech-orb svg { display: block; width: 100%; height: auto; overflow: visible; }
.orb-glow { animation: orb-pulse 7s ease-in-out infinite; }
.orb-core { animation: orb-pulse 7s ease-in-out infinite .8s; }
.orb-ring { animation: orb-spin 90s linear infinite; transform-origin: 360px 215px; }
.orb-links line { stroke-dasharray: 2 7; }
.orb-nodes circle { filter: drop-shadow(0 0 6px rgba(240, 220, 168, .55)); }
.orb-label text {
  fill: var(--text-2);
  font-size: 14px;
  letter-spacing: .22em;
}
.orb-core-text {
  fill: var(--gold-lt);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: .12em;
}
.orb-core-sub {
  fill: var(--text-3);
  font-size: 11px;
  letter-spacing: .34em;
}

@keyframes orb-spin { to { transform: rotate(360deg); } }
@keyframes orb-pulse { 0%, 100% { opacity: .62; } 50% { opacity: 1; } }

.tech__pillars { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.tech__card {
  padding: 20px 22px;
  border: 1px solid var(--line-2);
  border-left: 2px solid var(--gold);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: var(--surface);
}
.tech__card h4 { font-size: 15px; margin-bottom: 8px; }
.tech__card p { font-size: 13.5px; line-height: 1.8; color: var(--text-2); }

/* ---------- 技能库 ---------- */
.skillcol {
  padding: 26px 24px;
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  background: var(--surface);
}
.skillcol__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  padding-bottom: 16px;
  margin-bottom: 18px;
  border-bottom: 1px solid var(--line-2);
}
.skillcol__head h4 { font-size: 16.5px; }
.skillcol__head span { font-family: var(--font-serif); font-size: 22px; color: var(--gold); }
.skillcol__desc { font-size: 13px; color: var(--text-2); margin-bottom: 16px; line-height: 1.8; }
.skillcol ul { display: flex; flex-wrap: wrap; gap: 7px; }
.skillcol li {
  padding: 4px 11px;
  border: 1px solid var(--line-2);
  border-radius: 999px;
  font-size: 12.5px;
  color: var(--text-2);
  transition: border-color .25s, color .25s;
}
.skillcol li:hover { border-color: var(--line); color: var(--gold-lt); }

/* ---------- 三步上手 ---------- */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; position: relative; }
.step {
  position: relative;
  padding: 30px 26px 28px;
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--surface-2), transparent);
}
.step__no {
  display: grid;
  place-items: center;
  width: 38px; height: 38px;
  margin-bottom: 18px;
  border-radius: 50%;
  background: var(--grad-gold);
  color: #1a1405;
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 700;
}
.step h4 { font-size: 17px; margin-bottom: 10px; }
.step p { font-size: 14px; line-height: 1.85; color: var(--text-2); }
.step__meta {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px dashed var(--line-2);
  font-size: 12.5px;
  color: var(--gold-lt);
}

/* ---------- 定价 ---------- */
.price { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.plan {
  padding: 30px 24px;
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  background: var(--surface);
  text-align: center;
  transition: transform .35s var(--ease), border-color .35s;
}
.plan:hover { transform: translateY(-4px); border-color: var(--line); }
.plan--best {
  border-color: var(--gold);
  background: linear-gradient(180deg, rgba(201, 162, 39, .1), rgba(201, 162, 39, .015));
  box-shadow: 0 24px 60px -30px rgba(201, 162, 39, .6);
}
.plan__badge {
  display: inline-block;
  margin-bottom: 14px;
  padding: 3px 12px;
  border-radius: 999px;
  background: var(--grad-gold);
  color: #1a1405;
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: .08em;
}
/* 数据驱动的补充标签：限购 / 新人专享等，弱于主徽标 */
.plan__chip {
  display: inline-block;
  margin: 0 0 14px 6px;
  padding: 3px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(201, 162, 39, .07);
  color: var(--gold-lt);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: .04em;
}
.plan--best .plan__chip { border-color: rgba(240, 220, 168, .5); }
/* 限时折扣标签 + 折前原价 */
.plan__chip--promo { color: #f0b46a; border-color: rgba(217, 131, 36, .45); background: rgba(217, 131, 36, .1); }
.plan__old { margin-top: 8px; font-size: 13px; color: var(--text-3); text-decoration: line-through; }
.plan__days { margin-top: 10px; font-size: 12.5px; color: var(--gold-lt); letter-spacing: .04em; }

/* 价格加载态 */
.plan--loading {
  grid-column: 1 / -1;
  padding: 44px 24px;
  text-align: center;
  color: var(--text-2);
  font-size: 14px;
}
.plan__name { font-size: 16px; font-weight: 700; margin-bottom: 12px; }
.plan__price {
  font-family: var(--font-serif);
  font-size: 40px;
  font-weight: 700;
  line-height: 1;
  background: var(--grad-gold);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.plan__price sup { font-size: .42em; margin-right: 3px; }
.plan__unit { margin-top: 8px; font-size: 12.5px; color: var(--text-3); }
.plan__desc { margin-top: 18px; padding-top: 18px; border-top: 1px dashed var(--line-2); font-size: 13px; color: var(--text-2); line-height: 1.8; }

.price__note {
  margin-top: 26px;
  padding: 18px 22px;
  border: 1px dashed var(--line);
  border-radius: var(--radius-sm);
  background: rgba(201, 162, 39, .05);
  font-size: 13.5px;
  color: var(--text-2);
  line-height: 1.85;
}
.price__note b { color: var(--gold-lt); }

/* ---------- 系统要求 ---------- */
.req { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.req__row {
  display: flex;
  gap: 16px;
  padding: 18px 20px;
  border: 1px solid var(--line-2);
  border-radius: var(--radius-sm);
  background: var(--surface);
}
.req__k { flex: 0 0 96px; font-size: 13px; color: var(--gold-lt); letter-spacing: .04em; }
.req__v { font-size: 13.5px; color: var(--text-2); line-height: 1.8; }
.req__v b { color: var(--text); font-weight: 600; }

/* ---------- FAQ ---------- */
.faq { display: grid; gap: 12px; }
.faq details {
  border: 1px solid var(--line-2);
  border-radius: var(--radius-sm);
  background: var(--surface);
  overflow: hidden;
  transition: border-color .3s;
}
.faq details[open] { border-color: var(--line); }
.faq summary {
  padding: 19px 24px;
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 14px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-serif);
  font-size: 22px;
  color: var(--gold);
  transition: transform .3s;
}
.faq details[open] summary::after { transform: rotate(45deg); }
.faq__body {
  padding: 0 24px 22px;
  font-size: 14px;
  line-height: 1.9;
  color: var(--text-2);
}
.faq__body b { color: var(--text); }

/* ---------- 结尾 CTA ---------- */
.final {
  position: relative;
  padding: 110px 0;
  text-align: center;
  overflow: hidden;
  border-top: 1px solid var(--line-2);
  background: radial-gradient(760px 400px at 50% 0%, rgba(201, 162, 39, .14), transparent 68%), var(--ink-2);
}
.final h2 { font-size: clamp(28px, 4.4vw, 48px); font-weight: 800; letter-spacing: -.02em; margin-bottom: 20px; }
.final p { max-width: 620px; margin: 0 auto 36px; font-size: 15.5px; color: var(--text-2); line-height: 1.9; }
.final__actions { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; }

/* ---------- 响应式 ---------- */
@media (max-width: 1000px) {
  .strip__grid { grid-template-columns: repeat(2, 1fr); }
  .strip__cell:nth-child(2) { border-right: none; }
  .strip__cell:nth-child(1), .strip__cell:nth-child(2) { border-bottom: 1px solid var(--line-2); }
  .cap { grid-template-columns: 1fr; gap: 30px; }
  .cap--rev .cap__media { order: 0; }
  .tech__pillars { grid-template-columns: 1fr; }
  .price { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 720px) {
  .steps { grid-template-columns: 1fr; }
  .req { grid-template-columns: 1fr; }
  .price { grid-template-columns: 1fr; }
  .strip__grid { grid-template-columns: 1fr 1fr; }
  .strip__cell { padding: 22px 14px; }
  .tech-orb { margin-bottom: 24px; }
  .orb-label text { font-size: 16px; letter-spacing: .1em; }
  .orb-core-text { font-size: 21px; }
  .orb-core-sub { font-size: 12px; letter-spacing: .24em; }
  .req__k { flex-basis: 76px; }
}