:root {
  --bg: #0a0e1a;
  --bg-alt: #0d1322;
  --card: rgba(255, 255, 255, 0.04);
  --card-border: rgba(255, 255, 255, 0.08);
  --text: #e8ecf4;
  --text-dim: #9aa3b5;
  --primary: #7c5cff;
  --primary-2: #3ec6ff;
  --accent: #22d3ee;
  --grad: linear-gradient(120deg, #7c5cff 0%, #3ec6ff 100%);
  --radius: 16px;
  --maxw: 1140px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

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

::selection { background: rgba(124, 92, 255, 0.4); }

/* ---------- 背景装饰 ---------- */
.bg-particles {
  position: fixed; inset: 0; z-index: -4; pointer-events: none;
  width: 100%; height: 100%;
}

.bg-grid {
  position: fixed; inset: 0; z-index: -3; pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 60%, transparent 100%);
}

/* 用 radial-gradient 预渲染光晕，替代 filter: blur（避免大尺寸实时模糊） */
.bg-glow {
  position: fixed; z-index: -2; border-radius: 50%;
  pointer-events: none; will-change: transform;
  animation: glowFloat 14s ease-in-out infinite alternate;
}
.bg-glow--1 {
  width: 900px; height: 900px; top: -320px; left: -280px;
  background: radial-gradient(circle, rgba(124, 92, 255, 0.38) 0%, rgba(124, 92, 255, 0.12) 38%, transparent 68%);
}
.bg-glow--2 {
  width: 820px; height: 820px; top: 22%; right: -340px;
  background: radial-gradient(circle, rgba(62, 198, 255, 0.32) 0%, rgba(62, 198, 255, 0.1) 38%, transparent 68%);
  animation-delay: -7s;
}

@keyframes glowFloat {
  from { transform: translate(0, 0) scale(1); }
  to { transform: translate(40px, 30px) scale(1.08); }
}

/* ---------- 导航 ---------- */
.nav {
  position: sticky; top: 0; z-index: 100;
  backdrop-filter: blur(16px);
  background: rgba(10, 14, 26, 0.7);
  border-bottom: 1px solid var(--card-border);
}
.nav__inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }

.nav__progress {
  position: absolute; bottom: -1px; left: 0; right: 0; height: 2px;
  background: transparent; overflow: hidden;
}
.nav__progress span {
  display: block; height: 100%; width: 0%;
  background: var(--grad);
  box-shadow: 0 0 10px rgba(124, 92, 255, 0.8);
  transition: width .08s linear;
}

.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; }
.brand__logo {
  display: grid; place-items: center; width: 36px; height: 36px;
  border-radius: 10px; background: var(--grad); color: #fff;
  font-family: ui-monospace, monospace; font-size: 15px;
  animation: logoPulse 4s ease-in-out infinite;
}
@keyframes logoPulse {
  0%, 100% { box-shadow: 0 0 0 rgba(124,92,255,0); }
  50% { box-shadow: 0 0 22px rgba(124,92,255,.55); }
}
.brand__name { font-size: 18px; letter-spacing: 0.5px; }

.nav__links { display: flex; gap: 28px; }
.nav__links a { color: var(--text-dim); font-size: 15px; position: relative; transition: color .2s; }
.nav__links a::after {
  content: ""; position: absolute; left: 0; bottom: -4px; width: 0; height: 2px;
  background: var(--grad); border-radius: 2px; transition: width .25s ease;
}
.nav__links a:hover { color: var(--text); }
.nav__links a:hover::after { width: 100%; }

.nav__toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 6px; }
.nav__toggle span { width: 22px; height: 2px; background: var(--text); border-radius: 2px; transition: .3s; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 26px; border-radius: 12px; font-size: 15px; font-weight: 600;
  position: relative; overflow: hidden;
  transition: transform .2s, box-shadow .2s, background .2s; cursor: pointer;
}
.btn--primary { background: var(--grad); color: #fff; box-shadow: 0 8px 24px rgba(124, 92, 255, .35); }
.btn--primary::before {
  content: ""; position: absolute; top: 0; left: -80%; width: 50%; height: 100%;
  background: linear-gradient(105deg, transparent, rgba(255,255,255,.35), transparent);
  transform: skewX(-20deg); transition: left .5s ease;
}
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 12px 32px rgba(124, 92, 255, .5); }
.btn--primary:hover::before { left: 130%; }
.btn--ghost { border: 1px solid var(--card-border); color: var(--text); background: rgba(255,255,255,0.03); }
.btn--ghost:hover { background: rgba(255,255,255,0.08); transform: translateY(-2px); }

/* ---------- Hero ---------- */
.hero { padding: 96px 0 80px; position: relative; }
.hero__inner {
  display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 48px; align-items: center;
}
.hero__badge {
  display: inline-flex; align-items: center; gap: 8px; padding: 6px 16px; border-radius: 999px;
  background: rgba(124, 92, 255, 0.12); border: 1px solid rgba(124, 92, 255, 0.3);
  color: #b9a7ff; font-size: 13px; margin-bottom: 24px; letter-spacing: 1px;
}
.hero__badge-dot {
  width: 8px; height: 8px; border-radius: 50%; background: #28c840;
  box-shadow: 0 0 8px #28c840; animation: blinkDot 2s ease-in-out infinite;
}
@keyframes blinkDot { 0%,100% { opacity: 1; } 50% { opacity: .35; } }

.hero__title { font-size: clamp(38px, 5.4vw, 62px); line-height: 1.18; font-weight: 800; letter-spacing: 1px; }
.grad-text {
  background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.grad-text--flow {
  background: linear-gradient(120deg, #7c5cff 0%, #3ec6ff 30%, #22d3ee 50%, #3ec6ff 70%, #7c5cff 100%);
  background-size: 220% auto;
  -webkit-background-clip: text; background-clip: text; color: transparent;
  animation: gradFlow 5s linear infinite;
}
@keyframes gradFlow { to { background-position: 220% center; } }

.hero__typing {
  margin-top: 18px; font-size: 20px; font-weight: 600; color: var(--text);
  display: flex; align-items: baseline; gap: 6px;
}
.typing-wrap { color: var(--accent); font-family: ui-monospace, "SF Mono", Menlo, monospace; }
.typing-cursor {
  display: inline-block; width: 2px; height: 1.1em; margin-left: 2px;
  background: var(--accent); vertical-align: text-bottom;
  animation: caret 1s steps(1) infinite;
}
@keyframes caret { 50% { opacity: 0; } }

.hero__desc { color: var(--text-dim); font-size: 17px; margin: 18px auto 32px; max-width: 480px; }
.hero__actions { display: flex; gap: 16px; flex-wrap: wrap; }

.hero__scrollhint {
  position: absolute; left: 50%; bottom: 12px; transform: translateX(-50%);
  width: 24px; height: 38px; border: 2px solid var(--card-border); border-radius: 14px;
}
.hero__scrollhint span {
  position: absolute; top: 7px; left: 50%; width: 4px; height: 8px;
  margin-left: -2px; border-radius: 2px; background: var(--primary-2);
  animation: scrollHint 1.8s ease-in-out infinite;
}
@keyframes scrollHint {
  0% { transform: translateY(0); opacity: 1; }
  70% { transform: translateY(12px); opacity: 0; }
  100% { transform: translateY(0); opacity: 0; }
}

/* ---------- 终端窗口 ---------- */
.hero__visual { position: relative; }
.terminal {
  position: relative; z-index: 2;
  background: rgba(13, 19, 34, 0.92);
  border: 1px solid var(--card-border); border-radius: 14px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.5), 0 0 40px rgba(124, 92, 255, 0.12);
  overflow: hidden;
  animation: terminalFloat 6s ease-in-out infinite;
}
/* 滚出视口时暂停装饰动画，省下无谓合成 */
.hero.offscreen .terminal,
.hero.offscreen .orbit--1,
.hero.offscreen .orbit--2 { animation-play-state: paused; }
@keyframes terminalFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}
.terminal__bar {
  display: flex; align-items: center; gap: 8px; padding: 12px 16px;
  background: rgba(255, 255, 255, 0.04); border-bottom: 1px solid var(--card-border);
}
.terminal__dot { width: 12px; height: 12px; border-radius: 50%; background: var(--c); }
.terminal__title { margin-left: auto; font-size: 12px; color: var(--text-dim); font-family: ui-monospace, monospace; }
.terminal__body {
  padding: 18px 20px; min-height: 240px;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 13px; line-height: 1.9; color: #c8d3e8; white-space: pre-wrap; word-break: break-all;
}
.terminal__body .t-cmd { color: #7ce38b; }
.terminal__body .t-flag { color: #b9a7ff; }
.terminal__body .t-str { color: #ffd479; }
.terminal__body .t-dim { color: #5d6a85; }
.terminal__body .t-caret {
  display: inline-block; width: 8px; height: 15px; background: #7ce38b;
  vertical-align: middle; animation: caret 1s steps(1) infinite;
}

.hero__orbit { position: absolute; inset: 0; z-index: 1; pointer-events: none; }
.orbit {
  position: absolute; border-radius: 50%; border: 1px dashed rgba(124, 92, 255, 0.25);
}
.orbit--1 { inset: -28px -40px; animation: orbitSpin 24s linear infinite; }
.orbit--2 { inset: -52px -70px; border-color: rgba(62, 198, 255, 0.18); animation: orbitSpin 38s linear infinite reverse; }
.orbit::after {
  content: ""; position: absolute; top: -4px; left: 50%; width: 8px; height: 8px;
  border-radius: 50%; background: var(--primary-2); box-shadow: 0 0 12px var(--primary-2);
}
.orbit--2::after { background: var(--primary); box-shadow: 0 0 12px var(--primary); }
.orbit-core {
  position: absolute; right: -6px; top: -6px; width: 14px; height: 14px; border-radius: 50%;
  background: var(--grad); box-shadow: 0 0 18px rgba(124, 92, 255, .8);
}
@keyframes orbitSpin { to { transform: rotate(360deg); } }

/* ---------- Section 通用 ---------- */
.section--alt { background: var(--bg-alt); border-top: 1px solid var(--card-border); border-bottom: 1px solid var(--card-border); }
.section__head { text-align: center; margin-bottom: 56px; }
.section__tag {
  display: inline-block; font-size: 13px; letter-spacing: 3px; color: var(--accent);
  font-weight: 600; margin-bottom: 12px; position: relative; padding: 0 14px;
}
.section__tag::before, .section__tag::after {
  content: ""; position: absolute; top: 50%; width: 24px; height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent));
}
.section__tag::before { left: -16px; }
.section__tag::after { right: -16px; transform: scaleX(-1); }
.section__title { font-size: clamp(28px, 4vw, 40px); font-weight: 800; }
.section__sub { color: var(--text-dim); margin-top: 10px; }

.glass {
  position: relative;
  background: var(--card); border: 1px solid var(--card-border);
  border-radius: var(--radius);
  transition: border-color .3s, box-shadow .3s;
}
/* 光标聚光灯（JS 写入 --mx/--my） */
.glass::before {
  content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none;
  opacity: 0; transition: opacity .3s;
  background: radial-gradient(360px circle at var(--mx, 50%) var(--my, 50%), rgba(124, 92, 255, 0.14), transparent 65%);
}
.glass:hover::before { opacity: 1; }
/* 流光渐变描边 */
.glass::after {
  content: ""; position: absolute; inset: -1px; border-radius: inherit; pointer-events: none;
  padding: 1px; opacity: 0; transition: opacity .3s;
  background: conic-gradient(from var(--edge-angle, 0deg), transparent 0%, rgba(124,92,255,.8) 12%, rgba(62,198,255,.8) 24%, transparent 40%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
  animation: edgeSpin 3.5s linear infinite;
}
.glass:hover::after { opacity: 1; }
@property --edge-angle {
  syntax: "<angle>"; initial-value: 0deg; inherits: false;
}
@keyframes edgeSpin { to { --edge-angle: 360deg; } }

/* ---------- 3D 倾斜 ---------- */
.tilt { transform-style: preserve-3d; will-change: transform; transition: transform .18s ease-out; }

/* ---------- 品牌定位 ---------- */
.positioning { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; }
.positioning__card { padding: 36px 28px; text-align: center; transition: transform .18s ease-out, border-color .3s, box-shadow .3s; }
.positioning__card:hover { border-color: rgba(124, 92, 255, 0.4); box-shadow: 0 16px 48px rgba(124, 92, 255, 0.14); }
.positioning__icon { font-size: 44px; margin-bottom: 18px; display: inline-block; }
.positioning__card:hover .positioning__icon { animation: iconBounce .5s ease; }
@keyframes iconBounce {
  0%, 100% { transform: translateY(0); }
  40% { transform: translateY(-10px) scale(1.1); }
}
.positioning__card h3 { font-size: 21px; margin-bottom: 12px; }
.positioning__card p { color: var(--text-dim); font-size: 15px; }

/* ---------- 合作范围 ---------- */
.services { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 20px; }
.service { padding: 32px 24px; text-align: center; transition: transform .18s ease-out, border-color .3s, box-shadow .3s; }
.service:hover { border-color: rgba(62, 198, 255, 0.4); box-shadow: 0 16px 48px rgba(62, 198, 255, 0.12); }
.service__num {
  position: absolute; top: 14px; right: 18px;
  font-family: ui-monospace, monospace; font-size: 13px; color: rgba(255,255,255,0.18);
  letter-spacing: 1px;
}
.service__icon { font-size: 40px; margin-bottom: 16px; display: inline-block; }
.service:hover .service__icon { animation: iconBounce .5s ease; }
.service h3 { font-size: 19px; margin-bottom: 10px; }
.service p { color: var(--text-dim); font-size: 14.5px; }
/* 自研 Agent 产品的外链入口：虚线下划线区别于正文链接，
   且不加背景/边框，避免抢掉卡片标题的视觉层级。 */
.service__link {
  /* 必须显式 inline-block：a 默认是 inline，而 inline 元素的垂直外边距不生效，
     margin-top 会静默失效（全局已 * { margin: 0 } 清零段落边距，
     间距就只剩行高带来的空隙，不稳定）。 */
  display: inline-block; margin-top: 14px; font-size: 13px; color: var(--accent);
  /* 用 text-decoration 而非 border-bottom：卡片在窄视口会被折行，
    边框只会在末行下方画一条，看着像只给半句话加了下划线。 */
  text-decoration: underline dashed; text-decoration-thickness: 1px;
  text-underline-offset: 4px; text-decoration-color: rgba(34, 211, 238, 0.45);
  transition: color .2s ease, text-decoration-color .2s ease;
}
.service__link:hover { color: #7fe6ff; text-decoration-color: #7fe6ff; }

.section__more { text-align: center; margin-top: 34px; }
.section__more a {
  font-size: 15px; font-weight: 600; color: var(--accent);
  border-bottom: 1px solid transparent; transition: border-color .2s, color .2s;
}
.section__more a:hover { border-bottom-color: var(--accent); }

/* ---------- AI 应用服务包 ---------- */
.packages-section { border-bottom: 1px solid var(--card-border); }

.packages { display: grid; grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); gap: 22px; }

.package {
  --pkg: #7c5cff; --pkg-line: rgba(124, 92, 255, 0.45); --pkg-glow: rgba(124, 92, 255, 0.18);
  display: flex; flex-direction: column; gap: 16px;
  padding: 28px 26px 26px;
  box-shadow: inset 0 3px 0 0 var(--pkg);
  transition: transform .18s ease-out, border-color .3s, box-shadow .3s;
}
.package--teal { --pkg: #22d3ee; --pkg-line: rgba(34, 211, 238, 0.45); --pkg-glow: rgba(34, 211, 238, 0.18); }
.package--amber { --pkg: #ffb347; --pkg-line: rgba(255, 179, 71, 0.45); --pkg-glow: rgba(255, 179, 71, 0.16); }
.package:hover { border-color: var(--pkg-line); box-shadow: inset 0 3px 0 0 var(--pkg), 0 16px 48px var(--pkg-glow); }
.package--featured { border-color: var(--pkg-line); box-shadow: inset 0 3px 0 0 var(--pkg), 0 0 44px var(--pkg-glow); }

.package__head { display: flex; flex-direction: column; gap: 5px; }
.package__headtop { display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 24px; }
.package__icon { font-size: 24px; line-height: 1; }
.package__flag {
  font-size: 11.5px; letter-spacing: 1px; padding: 3px 10px; border-radius: 999px;
  color: var(--pkg); background: var(--pkg-glow); border: 1px solid var(--pkg-line);
}
.package__name { font-size: 20px; font-weight: 700; letter-spacing: .5px; }
.package__slogan { color: var(--text-dim); font-size: 14px; }

.package__price { display: flex; align-items: baseline; gap: 6px; }
.package__num {
  font-size: 32px; font-weight: 800; letter-spacing: -.5px; color: var(--pkg);
  font-variant-numeric: tabular-nums;
}
.package__unit { color: var(--text-dim); font-size: 14px; }

.package__list { list-style: none; display: flex; flex-direction: column; gap: 9px; }
.package__list li {
  position: relative; padding-left: 18px;
  font-size: 14.5px; line-height: 1.65; color: var(--text-dim);
}
.package__list li::before {
  content: ""; position: absolute; left: 0; top: .62em;
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--pkg); box-shadow: 0 0 8px var(--pkg);
}
.package__list li b { color: var(--text); font-weight: 600; }

.package__meta {
  margin-top: auto; padding-top: 16px;
  border-top: 1px dashed var(--card-border);
  display: flex; flex-direction: column; gap: 7px;
  font-size: 13px;
}
.package__meta > div { display: flex; gap: 10px; }
.package__meta dt { flex: none; width: 60px; color: rgba(255, 255, 255, 0.38); }
.package__meta dd { color: var(--text-dim); }

.package__cta { justify-content: center; padding: 11px 20px; font-size: 14.5px; }

.packages__h3 { font-size: 20px; font-weight: 700; margin: 56px 0 6px; }
.trust { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 18px; margin-top: 18px; }
.trust__item { padding: 22px 22px 24px; transition: border-color .3s, box-shadow .3s; }
.trust__item:hover { border-color: rgba(124, 92, 255, 0.4); box-shadow: 0 14px 40px rgba(124, 92, 255, 0.12); }
.trust__item h4 { font-size: 15.5px; margin-bottom: 8px; color: #b9a7ff; }
.trust__item p { color: var(--text-dim); font-size: 14px; line-height: 1.7; }

.pkg-terms { margin-top: 22px; padding: 26px 28px; }
.pkg-terms__title { font-size: 16px; font-weight: 700; margin-bottom: 12px; }
.pkg-terms__list {
  list-style: none; display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 8px 30px;
}
.pkg-terms__list li {
  position: relative; padding-left: 16px;
  font-size: 13.5px; line-height: 1.7; color: var(--text-dim);
}
.pkg-terms__list li::before {
  content: "▸"; position: absolute; left: 0; top: 0;
  font-size: 12px; color: var(--accent); opacity: .75;
}
.pkg-terms__list b { color: var(--text); font-weight: 600; }

.packages__cta {
  margin-top: 30px; display: flex; align-items: center; justify-content: center;
  gap: 16px; flex-wrap: wrap; text-align: center;
}
.packages__cta-note { color: var(--text-dim); font-size: 14px; }

/* ---------- 工作流程 ---------- */
.process { position: relative; max-width: 860px; margin: 0 auto; }
.process__line {
  position: absolute; top: 0; bottom: 0; left: 27px; width: 2px;
  background: rgba(255, 255, 255, 0.06); border-radius: 2px; overflow: hidden;
}
.process__line span {
  display: block; width: 100%; height: 0%;
  background: linear-gradient(180deg, #7c5cff, #3ec6ff, #22d3ee);
  box-shadow: 0 0 12px rgba(62, 198, 255, .6);
  transition: height .4s ease-out;
}
.process__steps { display: flex; flex-direction: column; gap: 28px; }
.process__step { display: flex; gap: 24px; align-items: flex-start; }
.process__node {
  flex: none; width: 56px; height: 56px; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--bg); border: 2px solid rgba(124, 92, 255, 0.5);
  font-family: ui-monospace, monospace; font-size: 20px; font-weight: 700;
  color: #b9a7ff; z-index: 1;
  box-shadow: 0 0 0 6px rgba(124, 92, 255, 0.08);
  transition: border-color .3s, box-shadow .3s, color .3s;
}
.process__step:hover .process__node {
  border-color: var(--primary-2); color: var(--primary-2);
  box-shadow: 0 0 0 6px rgba(62, 198, 255, 0.12), 0 0 24px rgba(62, 198, 255, 0.4);
}
.process__card { flex: 1; padding: 24px 28px; }
.process__card h3 { font-size: 19px; margin-bottom: 6px; }
.process__card p { color: var(--text-dim); font-size: 15px; }

/* Section 通用
   注意：这里刻意不用 content-visibility:auto —— 锚点跳转按估算高度定位，
   区块实际高度与估算偏差大时（如服务包区块）会跳到错误位置。 */
.section { padding: 90px 0; }

/* ---------- CTA ---------- */
/* 原技术栈区块（section--alt）移除后，由联系区上边框承担与工作流程区的分隔 */
#contact { border-top: 1px solid var(--card-border); }
.cta { padding: 64px 32px; text-align: center; max-width: 720px; margin: 0 auto; overflow: hidden; }
.cta--glow { box-shadow: 0 0 60px rgba(124, 92, 255, 0.15), inset 0 0 40px rgba(124, 92, 255, 0.04); }
.cta__scanline {
  position: absolute; left: 0; right: 0; top: 0; height: 2px; pointer-events: none;
  background: linear-gradient(90deg, transparent, rgba(62,198,255,.7), transparent);
  animation: scanline 4s ease-in-out infinite;
}
@keyframes scanline {
  0% { top: 0; opacity: 0; }
  12% { opacity: 1; }
  88% { opacity: 1; }
  100% { top: calc(100% - 2px); opacity: 0; }
}
.cta__title { font-size: clamp(26px, 4vw, 36px); font-weight: 800; margin-bottom: 12px; }
.cta__desc { color: var(--text-dim); margin-bottom: 28px; }

/* ---------- Footer ---------- */
.footer { border-top: 1px solid var(--card-border); padding: 32px 0; }
.footer__inner { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px; }
.brand--sm .brand__name { font-size: 16px; }
.brand--sm .brand__logo { width: 30px; height: 30px; font-size: 13px; animation: none; }
.footer__copy { color: var(--text-dim); font-size: 14px; }
.footer__icp { color: var(--text-dim); font-size: 13px; text-decoration: none; transition: color .2s ease; }
.footer__icp:hover { color: var(--text); }
.footer__legal { display: flex; align-items: center; flex-wrap: wrap; gap: 16px; }
.footer__psb { display: inline-flex; align-items: center; gap: 5px; color: var(--text-dim); font-size: 13px; text-decoration: none; transition: color .2s ease; }
.footer__psb img { display: block; }
.footer__psb:hover { color: var(--text); }

/* ---------- 动画 ---------- */
@keyframes fadeUp { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: none; } }
.reveal { opacity: 0; animation: fadeUp .7s ease forwards; }
.reveal-item { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.reveal-item.reveal-in { opacity: 1; transform: none; }

/* ---------- 响应式 ---------- */
@media (max-width: 960px) {
  .hero__inner { grid-template-columns: 1fr; gap: 40px; }
  .hero__visual { max-width: 480px; margin: 0 auto; width: 100%; }
}
@media (max-width: 760px) {
  .bg-glow { animation: none; }
  .bg-glow--1 { width: 560px; height: 560px; top: -200px; left: -180px; }
  .bg-glow--2 { width: 480px; height: 480px; top: 26%; right: -220px; }
  .nav__links, .nav__cta { display: none; }
  .nav__toggle { display: flex; }
  .nav__links.open {
    display: flex; flex-direction: column; position: absolute; top: 64px; left: 0; right: 0;
    background: rgba(10, 14, 26, 0.96); padding: 20px 24px; gap: 18px; border-bottom: 1px solid var(--card-border);
  }
  .hero { padding: 64px 0 60px; }
  .hero__actions { justify-content: center; }
  .hero__typing { justify-content: center; }
  .hide-sm { display: none; }
  .positioning, .services { grid-template-columns: 1fr; }
  .packages, .pkg-terms__list { grid-template-columns: 1fr; }
  .package { padding: 24px 20px 22px; }
  .package__num { font-size: 28px; }
  .packages__h3 { margin-top: 44px; }
  .pkg-terms { padding: 22px 20px; }
  .process__line { left: 23px; }
  .process__node { width: 48px; height: 48px; font-size: 17px; }
}

/* ---------- 降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal, .reveal-item { opacity: 1; transform: none; }
}