/* ==========================================================================
   维盾 VProtector — 官网首页样式
   配色：近黑底 + 荧光绿，与 VProtector 工作台保持一致
   ========================================================================== */

/* ---------- 设计变量 ---------- */
:root {
  --bg: #070a07;
  --bg-2: #0a0e0a;
  --panel: #0d120d;
  --panel-2: #111610;

  --line: rgba(197, 245, 122, 0.10);
  --line-2: rgba(197, 245, 122, 0.20);
  --line-neutral: rgba(255, 255, 255, 0.06);

  --lime: #b8f65e;
  --lime-soft: #d4ff92;
  --lime-dim: #7fb43f;

  --text: #e9efe4;
  --text-soft: #c3cdbd;
  --muted: #8b9588;
  --muted-2: #5d675c;

  --font-sans: "Inter", "Segoe UI", "PingFang SC", "HarmonyOS Sans SC",
    "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", Consolas, "Liberation Mono",
    Menlo, monospace;

  --header-h: 76px;
  --container: 1240px;
  --radius: 14px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ---------- 基础重置 ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

h1, h2, h3, h4, p, ul {
  margin: 0;
}

ul {
  padding: 0;
  list-style: none;
}

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

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

button {
  font-family: inherit;
}

::selection {
  background: var(--lime);
  color: #0a0e07;
}

::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: #060906;
}

::-webkit-scrollbar-thumb {
  background: #1e261d;
  border: 2px solid #060906;
  border-radius: 8px;
}

::-webkit-scrollbar-thumb:hover {
  background: #32442a;
}

:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip-link {
  position: fixed;
  top: -80px;
  left: 16px;
  z-index: 1000;
  padding: 10px 18px;
  background: var(--lime);
  color: #0a0e07;
  font-size: 13px;
  font-weight: 700;
  border-radius: 6px;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 14px;
}

.container {
  width: min(calc(100% - 48px), var(--container));
  margin-inline: auto;
}

/* ---------- 通用组件 ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--lime);
}

.eyebrow::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 10px rgba(184, 246, 94, 0.85);
  flex-shrink: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
  cursor: pointer;
  transition: transform 0.25s var(--ease), background 0.25s ease,
    border-color 0.25s ease, color 0.25s ease, box-shadow 0.25s ease;
}

.btn svg {
  flex-shrink: 0;
  transition: transform 0.25s var(--ease);
}

.btn:hover svg {
  transform: translateX(2px);
}

.btn-sm {
  padding: 10px 16px;
  font-size: 12.5px;
}

.btn-lg {
  padding: 15px 26px;
  font-size: 14px;
}

.btn-primary {
  background: var(--lime);
  color: #0a0e07;
  box-shadow: 0 0 0 1px rgba(184, 246, 94, 0.32),
    0 10px 34px -16px rgba(184, 246, 94, 0.65);
}

.btn-primary:hover {
  background: var(--lime-soft);
  transform: translateY(-1px);
  box-shadow: 0 0 0 1px rgba(212, 255, 146, 0.4),
    0 16px 40px -14px rgba(184, 246, 94, 0.7);
}

.btn-outline {
  background: rgba(255, 255, 255, 0.02);
  border-color: rgba(255, 255, 255, 0.14);
  color: var(--text);
}

.btn-outline:hover {
  background: rgba(184, 246, 94, 0.05);
  border-color: rgba(184, 246, 94, 0.42);
  color: var(--lime-soft);
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding-bottom: 4px;
  margin-top: 26px;
  border-bottom: 1px solid rgba(184, 246, 94, 0.28);
  color: var(--lime);
  font-size: 12.5px;
  font-weight: 600;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.text-link svg {
  transition: transform 0.25s var(--ease);
}

.text-link:hover {
  color: var(--lime-soft);
  border-color: var(--lime);
}

.text-link:hover svg {
  transform: translateX(3px);
}

.mono {
  font-family: var(--font-mono);
}

.br-mobile {
  display: none;
}

/* 滚动入场（仅在 JS 启用时隐藏，保证无脚本时内容可见） */
.js .reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.85s var(--ease), transform 0.85s var(--ease);
  will-change: opacity, transform;
}

.js .reveal.in {
  opacity: 1;
  transform: none;
}

/* ==========================================================================
   HEADER
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  border-bottom: 1px solid transparent;
  transition: background 0.3s ease, border-color 0.3s ease,
    backdrop-filter 0.3s ease;
}

.site-header.is-scrolled {
  background: rgba(6, 9, 6, 0.82);
  border-bottom-color: var(--line);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
}

.header-inner {
  height: var(--header-h);
  display: flex;
  align-items: center;
  gap: 38px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  flex-shrink: 0;
}

.brand-mark {
  width: 36px;
  height: 36px;
  display: block;
  flex-shrink: 0;
  filter: drop-shadow(0 0 12px rgba(184, 246, 94, 0.16));
}

.brand-mark svg {
  width: 100%;
  height: 100%;
}

.brand-type {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.brand-cn {
  font-size: 18px;
  font-weight: 800;
  line-height: 1;
  letter-spacing: 0.1em;
  color: #f3f8ed;
}

.brand-en {
  font-family: var(--font-mono);
  font-size: 7px;
  line-height: 1;
  letter-spacing: 0.24em;
  color: var(--muted-2);
}

.nav {
  display: flex;
  align-items: center;
  gap: 30px;
  margin-left: 22px;
}

.nav a {
  position: relative;
  padding: 6px 0;
  font-size: 13px;
  color: var(--muted);
  transition: color 0.2s ease;
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 1px;
  background: var(--lime);
  transition: width 0.3s var(--ease);
}

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

.nav a:hover::after {
  width: 100%;
}

.nav-mobile-link {
  display: none;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 22px;
  margin-left: auto;
}

.header-login {
  font-size: 13px;
  color: var(--muted);
  transition: color 0.2s ease;
}

.header-login:hover {
  color: var(--text);
}

.nav-toggle {
  display: none;
  width: 38px;
  height: 38px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: transparent;
  color: var(--text);
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 16px;
  height: 1.5px;
  border-radius: 2px;
  background: currentColor;
  transition: transform 0.25s ease;
}

.nav-toggle[aria-expanded="true"] span:first-child {
  transform: translateY(3.25px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:last-child {
  transform: translateY(-3.25px) rotate(-45deg);
}

/* ==========================================================================
   HERO
   ========================================================================== */
.hero {
  position: relative;
  padding-top: calc(var(--header-h) + 86px);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

.hero-grid {
  position: absolute;
  inset: -1px;
  background-image: linear-gradient(rgba(184, 246, 94, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(184, 246, 94, 0.055) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(ellipse 78% 68% at 50% 26%, #000 18%, transparent 78%);
  mask-image: radial-gradient(ellipse 78% 68% at 50% 26%, #000 18%, transparent 78%);
}

.hero-glow {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}

.hero-glow-a {
  width: 900px;
  height: 900px;
  top: -460px;
  right: -280px;
  background: radial-gradient(circle, rgba(184, 246, 94, 0.15), transparent 64%);
  filter: blur(30px);
}

.hero-glow-b {
  width: 780px;
  height: 780px;
  left: -380px;
  top: 160px;
  background: radial-gradient(circle, rgba(184, 246, 94, 0.055), transparent 66%);
}

.spark {
  position: absolute;
  width: 11px;
  height: 11px;
  animation: twinkle 5s ease-in-out infinite;
}

.spark::before,
.spark::after {
  content: "";
  position: absolute;
  background: rgba(184, 246, 94, 0.55);
}

.spark::before {
  left: 50%;
  top: 0;
  width: 1px;
  height: 100%;
  transform: translateX(-50%);
}

.spark::after {
  top: 50%;
  left: 0;
  height: 1px;
  width: 100%;
  transform: translateY(-50%);
}

.spark-a {
  top: 21%;
  left: 52%;
}

.spark-b {
  top: 46%;
  left: 47%;
  transform: scale(0.7);
  animation-delay: 1.8s;
}

.spark-c {
  top: 30%;
  right: 6%;
  transform: scale(1.2);
  animation-delay: 3.1s;
}

@keyframes twinkle {
  0%, 100% { opacity: 0.18; }
  50% { opacity: 0.85; }
}

.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
  align-items: center;
  gap: 60px;
}

.hero-copy h1 {
  font-size: clamp(2.75rem, 4.5vw, 4.15rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin-bottom: 26px;
}

.hero-copy h1 .accent {
  display: block;
  margin-top: 10px;
  font-size: 0.72em;
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.25;
  color: var(--lime);
  text-shadow: 0 0 44px rgba(184, 246, 94, 0.28);
}

.hero-lead {
  max-width: 552px;
  color: var(--muted);
  font-size: 14.5px;
  line-height: 1.95;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.hero-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
  margin-top: 30px;
}

.hero-facts li {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: #8b9786;
  font-size: 11.5px;
  letter-spacing: 0.02em;
}

.fact-check {
  color: var(--lime);
  flex-shrink: 0;
}

/* ---------- Hero 控制台 ---------- */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: flex-end;
  min-width: 0;
}

.hero-visual::before {
  content: "";
  position: absolute;
  z-index: 0;
  width: 560px;
  height: 560px;
  right: -110px;
  top: -90px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(184, 246, 94, 0.12), transparent 62%);
  filter: blur(26px);
  pointer-events: none;
}

.console {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 512px;
  border: 1px solid rgba(184, 246, 94, 0.18);
  border-radius: 16px;
  background: linear-gradient(160deg, rgba(17, 23, 16, 0.95), rgba(8, 11, 8, 0.97));
  box-shadow: 0 50px 100px -42px rgba(0, 0, 0, 0.95),
    0 0 90px -36px rgba(184, 246, 94, 0.28),
    inset 0 1px 0 rgba(255, 255, 255, 0.035);
  overflow: hidden;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

.console::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(184, 246, 94, 0.16) 1px, transparent 1px);
  background-size: 28px 28px;
  opacity: 0.16;
  -webkit-mask-image: linear-gradient(to bottom, #000, transparent 36%);
  mask-image: linear-gradient(to bottom, #000, transparent 36%);
  pointer-events: none;
}

.console-bar {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.015);
}

.win-dots {
  display: inline-flex;
  gap: 5px;
}

.win-dots i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.14);
}

.win-dots i:first-child {
  background: rgba(184, 246, 94, 0.35);
}

.console-url {
  margin: 0 auto;
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.04em;
  color: var(--muted-2);
}

.console-tag {
  padding: 3px 6px;
  border: 1px solid rgba(184, 246, 94, 0.24);
  border-radius: 4px;
  background: rgba(184, 246, 94, 0.06);
  color: var(--lime);
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.14em;
}

.console-body {
  position: relative;
  padding: 18px 18px 14px;
}

.target {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 12px;
  margin-bottom: 16px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.018);
}

.file-icon {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  flex-shrink: 0;
  border: 1px solid rgba(184, 246, 94, 0.18);
  border-radius: 8px;
  background: rgba(184, 246, 94, 0.07);
  color: var(--lime);
}

.file-icon svg {
  width: 19px;
  height: 19px;
}

.target-info {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}

.target-name {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
}

.target-meta {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.05em;
  color: var(--muted-2);
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-left: auto;
  padding: 4px 9px;
  border: 1px solid rgba(184, 246, 94, 0.22);
  border-radius: 999px;
  background: rgba(184, 246, 94, 0.06);
  color: var(--lime);
  font-family: var(--font-mono);
  font-size: 8.5px;
  letter-spacing: 0.06em;
  white-space: nowrap;
}

.status-pill i {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 8px var(--lime);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

.block-label {
  display: block;
  margin-bottom: 9px;
  color: var(--muted-2);
  font-family: var(--font-mono);
  font-size: 8.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.chips span {
  padding: 4px 8px;
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.02);
  color: #a3ad9e;
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.01em;
}

.chips span.is-on {
  border-color: rgba(184, 246, 94, 0.28);
  background: rgba(184, 246, 94, 0.07);
  color: var(--lime-soft);
}

.progress-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 18px;
  color: var(--muted);
  font-size: 10.5px;
}

.progress-head strong {
  color: var(--lime);
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 600;
}

.progress {
  height: 5px;
  margin-top: 8px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  overflow: hidden;
}

.progress span {
  display: block;
  height: 100%;
  width: var(--p);
  border-radius: inherit;
  background: linear-gradient(90deg, #7fbd38, var(--lime) 55%, #ddff9f);
  background-size: 200% 100%;
  box-shadow: 0 0 14px rgba(184, 246, 94, 0.55);
  animation: progressIn 1.7s var(--ease) 0.45s both,
    shimmer 3.6s linear infinite;
}

@keyframes progressIn {
  from { width: 0; }
}

@keyframes shimmer {
  to { background-position: -200% 0; }
}

.tasks {
  display: grid;
  gap: 8px;
  margin-top: 17px;
}

.tasks li {
  display: flex;
  align-items: center;
  gap: 9px;
  color: var(--muted-2);
  font-size: 11px;
  line-height: 1.5;
}

.tasks .tick {
  display: grid;
  place-items: center;
  width: 15px;
  height: 15px;
  flex-shrink: 0;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 50%;
}

.tasks li.done {
  color: #a7b2a2;
}

.tasks li.done .tick {
  border-color: rgba(184, 246, 94, 0.32);
  background: rgba(184, 246, 94, 0.1);
}

.tasks li.done .tick::before {
  content: "✓";
  color: var(--lime);
  font-size: 8px;
  line-height: 1;
}

.tasks li.active {
  color: var(--text);
}

.tasks li.active .tick {
  border-color: var(--lime);
  box-shadow: 0 0 0 3px rgba(184, 246, 94, 0.07);
}

.tasks li.active .tick::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--lime);
  animation: pulse 1.4s ease-in-out infinite;
}

.task-time {
  margin-left: auto;
  padding-left: 12px;
  color: var(--muted-2);
  font-family: var(--font-mono);
  font-size: 8.5px;
  white-space: nowrap;
}

.tasks li.active .task-time {
  color: var(--lime);
  opacity: 0.75;
}

.console-log {
  margin-top: 16px;
  padding: 10px 12px;
  border: 1px solid rgba(255, 255, 255, 0.055);
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.34);
  font-family: var(--font-mono);
  font-size: 9px;
  line-height: 1.9;
  color: #74806f;
  overflow: hidden;
}

.console-log p {
  margin: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.log-time {
  color: #586253;
}

.log-val {
  color: #8a9783;
}

.log-ok {
  color: var(--lime);
}

.console-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 13px;
  padding-top: 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  color: var(--muted-2);
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.08em;
}

.console-online {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--lime-dim);
}

.console-online i {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 8px var(--lime);
  animation: pulse 2s ease-in-out infinite;
}

/* ---------- 术语跑马灯 ---------- */
.marquee {
  position: relative;
  z-index: 2;
  margin-top: 92px;
  padding: 16px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}

.marquee-track {
  display: flex;
  width: max-content;
  animation: marquee 44s linear infinite;
}

.marquee:hover .marquee-track {
  animation-play-state: paused;
}

.marquee-group {
  display: flex;
  align-items: center;
  gap: 30px;
  padding-right: 30px;
  flex-shrink: 0;
}

.marquee-group span {
  color: #717d6c;
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.12em;
  white-space: nowrap;
}

.marquee-group i {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--lime);
  opacity: 0.45;
}

@keyframes marquee {
  to { transform: translateX(-50%); }
}

/* ==========================================================================
   STATS
   ========================================================================== */
.stats-band {
  position: relative;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  padding: 54px 0;
}

.stat {
  padding: 0 34px;
  border-left: 1px solid var(--line);
}

.stat:first-child {
  padding-left: 0;
  border-left: 0;
}

.stat strong {
  display: flex;
  align-items: baseline;
  gap: 2px;
  margin-bottom: 6px;
  color: #f3f8ed;
  font-family: var(--font-mono);
  font-size: clamp(1.9rem, 3vw, 2.45rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.04em;
}

.stat strong em {
  color: var(--lime);
  font-style: normal;
  font-size: 0.55em;
  letter-spacing: 0;
}

.stat-label {
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.04em;
}

/* ==========================================================================
   WORKFLOW
   ========================================================================== */
.flow-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.flow-step {
  position: relative;
  padding: 24px 22px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(170deg, rgba(18, 24, 17, 0.62), rgba(9, 13, 9, 0.86));
  overflow: hidden;
  transition: transform 0.35s var(--ease), border-color 0.35s ease,
    box-shadow 0.35s ease;
}

.flow-step::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(300px circle at var(--mx, 50%) var(--my, 0%),
      rgba(184, 246, 94, 0.09), transparent 66%);
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
}

.flow-step:hover {
  transform: translateY(-4px);
  border-color: rgba(184, 246, 94, 0.3);
  box-shadow: 0 26px 60px -36px rgba(0, 0, 0, 0.9);
}

.flow-step:hover::before {
  opacity: 1;
}

.flow-top {
  position: relative;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 22px;
}

.flow-icon {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border: 1px solid rgba(184, 246, 94, 0.18);
  border-radius: 10px;
  background: rgba(184, 246, 94, 0.05);
  color: var(--lime);
}

.flow-icon svg {
  width: 20px;
  height: 20px;
}

.flow-num {
  color: var(--muted-2);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.1em;
}

.flow-step h3 {
  position: relative;
  margin-bottom: 8px;
  color: #edf3e8;
  font-size: 15.5px;
  font-weight: 700;
}

.flow-step p {
  position: relative;
  min-height: 66px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.85;
}

.flow-meta {
  position: relative;
  display: block;
  margin-top: 16px;
  padding-top: 13px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  color: var(--muted-2);
  font-family: var(--font-mono);
  font-size: 8.5px;
  letter-spacing: 0.04em;
  transition: color 0.3s ease;
}

.flow-step:hover .flow-meta {
  color: #becbb3;
}

.flow-note {
  display: flex;
  align-items: center;
  gap: 9px;
  margin-top: 20px;
  padding: 13px 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(184, 246, 94, 0.025);
  color: var(--muted);
  font-size: 11px;
  line-height: 1.7;
}

.flow-note svg {
  flex-shrink: 0;
  color: var(--lime);
}

/* ==========================================================================
   SECTION 通用
   ========================================================================== */
.section {
  position: relative;
  padding: 112px 0;
}

.section-alt {
  background: linear-gradient(180deg, rgba(184, 246, 94, 0.022), transparent 46%),
    linear-gradient(180deg, transparent, rgba(255, 255, 255, 0.012) 50%, transparent);
  border-top: 1px solid rgba(255, 255, 255, 0.035);
  border-bottom: 1px solid rgba(255, 255, 255, 0.035);
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 56px;
  margin-bottom: 52px;
}

.section-head h2 {
  max-width: 870px;
  font-size: clamp(1.9rem, 3.1vw, 2.6rem);
  font-weight: 800;
  line-height: 1.24;
  letter-spacing: -0.02em;
}

.section-side {
  max-width: 326px;
  padding-bottom: 5px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.85;
  flex-shrink: 0;
}

/* ==========================================================================
   CAPABILITIES
   ========================================================================== */
#capabilities::before {
  content: "";
  position: absolute;
  top: 4%;
  right: 0;
  width: 620px;
  height: 620px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(184, 246, 94, 0.045), transparent 66%);
  pointer-events: none;
}

.cap-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.cap-card {
  position: relative;
  padding: 24px 23px 23px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(170deg, rgba(18, 24, 17, 0.72), rgba(9, 13, 9, 0.88));
  overflow: hidden;
  transition: transform 0.35s var(--ease), border-color 0.35s ease,
    box-shadow 0.35s ease;
}

.cap-card::before,
.scene-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(340px circle at var(--mx, 50%) var(--my, 0%),
      rgba(184, 246, 94, 0.1), transparent 66%);
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
}

.cap-card::after {
  content: "";
  position: absolute;
  top: 0;
  left: 24px;
  right: 24px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(184, 246, 94, 0.55), transparent);
  opacity: 0;
  transition: opacity 0.35s ease;
}

.cap-card:hover,
.scene-card:hover {
  transform: translateY(-4px);
  border-color: rgba(184, 246, 94, 0.3);
  box-shadow: 0 26px 60px -36px rgba(0, 0, 0, 0.9);
}

.cap-card:hover::before,
.scene-card:hover::before {
  opacity: 1;
}

.cap-card:hover::after {
  opacity: 1;
}

.cap-top {
  position: relative;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 20px;
}

.cap-num {
  color: var(--muted-2);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
}

.cap-icon,
.scene-icon {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(184, 246, 94, 0.18);
  border-radius: 10px;
  background: rgba(184, 246, 94, 0.05);
  color: var(--lime);
}

.cap-icon svg {
  width: 21px;
  height: 21px;
}

.scene-icon svg {
  width: 20px;
  height: 20px;
}

.cap-card h3 {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 6px;
  color: #eef4e9;
  font-size: 16.5px;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.cap-card h3 em {
  color: var(--muted-2);
  font-family: var(--font-mono);
  font-size: 8px;
  font-weight: 400;
  font-style: normal;
  letter-spacing: 0.16em;
}

.cap-card p {
  position: relative;
  min-height: 70px;
  margin: 12px 0 18px;
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.85;
}

.tags {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.tags span {
  padding: 4px 7px;
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.015);
  color: #9aa695;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.01em;
  transition: border-color 0.3s ease, color 0.3s ease;
}

.cap-card:hover .tags span,
.scene-card:hover .scene-meta {
  border-color: rgba(184, 246, 94, 0.16);
  color: #becbb3;
}

/* ==========================================================================
   ARCHITECTURE
   ========================================================================== */
.arch-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.04fr);
  align-items: center;
  gap: 68px;
}

.arch-copy h2 {
  font-size: clamp(2rem, 3.5vw, 2.9rem);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.02em;
}

.arch-lead {
  max-width: 500px;
  margin-top: 22px;
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.95;
}

.cmd {
  margin-top: 32px;
  max-width: 510px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #080b08;
  overflow: hidden;
  box-shadow: 0 24px 60px -42px rgba(0, 0, 0, 0.9);
}

.cmd-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.02);
  color: var(--muted-2);
  font-family: var(--font-mono);
  font-size: 8.5px;
  letter-spacing: 0.08em;
}

.cmd-copy {
  padding: 3px 8px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 4px;
  background: none;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 8.5px;
  cursor: pointer;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.cmd-copy:hover {
  color: var(--lime);
  border-color: rgba(184, 246, 94, 0.32);
}

.cmd pre {
  margin: 0;
  padding: 14px 16px;
  overflow-x: auto;
  color: #9fae99;
  font-family: var(--font-mono);
  font-size: 10.5px;
  line-height: 1.95;
}

.cmd code {
  font-family: inherit;
}

.cmd .c {
  color: var(--lime);
}

.cmd .o {
  color: var(--lime);
}

.cmd .g {
  color: #65725f;
}

.compare {
  position: relative;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: linear-gradient(180deg, rgba(17, 23, 16, 0.7), rgba(8, 11, 8, 0.92));
  overflow: hidden;
  box-shadow: 0 40px 90px -60px rgba(0, 0, 0, 0.9),
    inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

.compare-head,
.compare-row {
  display: grid;
  grid-template-columns: 1.02fr 1fr 1.24fr;
}

.compare-head {
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.02);
}

.compare-head span {
  padding: 14px 17px;
  color: var(--muted-2);
  font-family: var(--font-mono);
  font-size: 8.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.compare-head .hl {
  display: flex;
  align-items: center;
  gap: 7px;
  border-left: 1px solid rgba(184, 246, 94, 0.14);
  border-right: 1px solid rgba(184, 246, 94, 0.14);
  background: rgba(184, 246, 94, 0.055);
  color: var(--lime);
}

.compare-head .hl::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 8px var(--lime);
  flex-shrink: 0;
}

.compare-row {
  border-top: 1px solid rgba(255, 255, 255, 0.045);
}

.compare-head + .compare-row {
  border-top: 0;
}

.compare-row span {
  padding: 16px 17px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.65;
}

.compare-row span:first-child {
  color: #c9d3c4;
  font-size: 11.5px;
  font-weight: 500;
}

.compare-row span:nth-child(2) {
  display: flex;
  align-items: flex-start;
  gap: 7px;
}

.compare-row span:nth-child(2)::before {
  content: "×";
  flex-shrink: 0;
  color: #626d5f;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.5;
}

.compare-row .hl {
  display: flex;
  align-items: flex-start;
  gap: 7px;
  border-left: 1px solid rgba(184, 246, 94, 0.14);
  border-right: 1px solid rgba(184, 246, 94, 0.14);
  background: rgba(184, 246, 94, 0.035);
  color: #d3e1c9;
}

.compare-row .hl::before {
  content: "✓";
  flex-shrink: 0;
  color: var(--lime);
  font-size: 10px;
  line-height: 1.8;
}

.compare-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 13px 17px;
  border-top: 1px solid var(--line);
  background: rgba(184, 246, 94, 0.025);
  color: var(--muted-2);
  font-size: 10px;
}

.compare-foot .mono {
  font-size: 8px;
  letter-spacing: 0.1em;
  color: rgba(184, 246, 94, 0.5);
  white-space: nowrap;
}

/* ==========================================================================
   SCENARIOS
   ========================================================================== */
.scene-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.scene-card {
  position: relative;
  padding: 23px 21px 21px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(17, 22, 16, 0.5), rgba(8, 11, 8, 0.7));
  overflow: hidden;
  transition: transform 0.35s var(--ease), border-color 0.35s ease,
    box-shadow 0.35s ease;
}

.scene-index {
  position: absolute;
  top: 24px;
  right: 21px;
  color: var(--muted-2);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.1em;
}

.scene-icon {
  position: relative;
  margin-bottom: 20px;
}

.scene-card h3 {
  position: relative;
  margin-bottom: 9px;
  color: #edf3e8;
  font-size: 15.5px;
  font-weight: 700;
}

.scene-card p {
  position: relative;
  min-height: 66px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.85;
}

.scene-meta {
  position: relative;
  margin-top: 16px;
  padding-top: 13px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  color: var(--muted-2);
  font-family: var(--font-mono);
  font-size: 8.5px;
  letter-spacing: 0.04em;
  transition: color 0.3s ease, border-color 0.3s ease;
}

/* ==========================================================================
   SECURITY
   ========================================================================== */
.security-panel {
  position: relative;
  display: grid;
  grid-template-columns: 0.92fr 1.08fr;
  align-items: center;
  gap: 54px;
  padding: 46px;
  border: 1px solid rgba(184, 246, 94, 0.2);
  border-radius: 22px;
  background: radial-gradient(640px 380px at 92% 8%, rgba(184, 246, 94, 0.07), transparent 65%),
    linear-gradient(165deg, rgba(16, 22, 15, 0.92), rgba(8, 11, 8, 0.96));
  overflow: hidden;
  box-shadow: 0 44px 100px -70px rgba(0, 0, 0, 0.95),
    inset 0 1px 0 rgba(255, 255, 255, 0.035);
}

.security-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(184, 246, 94, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(184, 246, 94, 0.04) 1px, transparent 1px);
  background-size: 52px 52px;
  -webkit-mask-image: radial-gradient(ellipse 80% 100% at 100% 0%, #000, transparent 70%);
  mask-image: radial-gradient(ellipse 80% 100% at 100% 0%, #000, transparent 70%);
  pointer-events: none;
}

.security-copy {
  position: relative;
  z-index: 1;
}

.security-copy h2 {
  margin-bottom: 18px;
  font-size: clamp(1.9rem, 3vw, 2.55rem);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: -0.02em;
}

.security-copy > p:not(.eyebrow) {
  max-width: 380px;
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.95;
}

.security-copy .text-link {
  margin-top: 20px;
}

.security-note {
  display: block;
  margin-top: 14px;
  color: var(--muted-2);
  font-family: var(--font-mono);
  font-size: 8.5px;
  letter-spacing: 0.03em;
  line-height: 1.7;
}

.security-items {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  border: 1px solid rgba(184, 246, 94, 0.16);
  border-radius: 12px;
  background: rgba(184, 246, 94, 0.14);
  overflow: hidden;
}

.security-item {
  min-height: 156px;
  padding: 21px 19px;
  background: #0a0e0a;
  transition: background 0.3s ease;
}

.security-item:hover {
  background: #0d130c;
}

.sec-icon {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  margin-bottom: 14px;
  border: 1px solid rgba(184, 246, 94, 0.18);
  border-radius: 8px;
  background: rgba(184, 246, 94, 0.06);
  color: var(--lime);
}

.sec-icon svg {
  width: 16px;
  height: 16px;
}

.security-item h3 {
  margin-bottom: 6px;
  color: var(--text-soft);
  font-size: 13.5px;
  font-weight: 600;
}

.security-item p {
  color: var(--muted);
  font-size: 11.5px;
  line-height: 1.75;
}

/* ==========================================================================
   FAQ
   ========================================================================== */
.faq-grid {
  display: grid;
  grid-template-columns: 0.82fr 1.18fr;
  gap: 76px;
  align-items: start;
}

.faq-copy h2 {
  font-size: clamp(1.9rem, 3.1vw, 2.55rem);
  font-weight: 800;
  line-height: 1.24;
  letter-spacing: -0.02em;
}

.faq-copy p {
  max-width: 310px;
  margin-top: 18px;
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.9;
}

.accordion {
  border-top: 1px solid var(--line);
}

.accordion details {
  border-bottom: 1px solid var(--line);
}

.accordion summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 21px 4px;
  color: var(--text-soft);
  font-size: 14px;
  font-weight: 500;
  line-height: 1.5;
  cursor: pointer;
  list-style: none;
  transition: color 0.2s ease;
}

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

.accordion summary::after {
  content: "+";
  flex-shrink: 0;
  color: var(--lime);
  font-family: var(--font-mono);
  font-size: 17px;
  font-weight: 300;
  line-height: 1;
  transition: color 0.2s ease;
}

.accordion summary:hover {
  color: var(--lime-soft);
}

.accordion details[open] summary {
  color: var(--lime-soft);
}

.accordion details[open] summary::after {
  content: "−";
}

.accordion .answer {
  max-width: 640px;
  padding: 0 36px 21px 4px;
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.95;
}

/* ==========================================================================
   CTA
   ========================================================================== */
.cta-section {
  padding: 24px 0 112px;
}

.cta-panel {
  position: relative;
  padding: clamp(56px, 7vw, 82px) 32px;
  border: 1px solid rgba(184, 246, 94, 0.2);
  border-radius: 24px;
  background: radial-gradient(680px 380px at 50% 0%, rgba(184, 246, 94, 0.1), transparent 66%),
    linear-gradient(180deg, rgba(17, 23, 16, 0.9), rgba(7, 10, 7, 0.96));
  overflow: hidden;
  text-align: center;
  box-shadow: 0 50px 120px -70px rgba(0, 0, 0, 0.9),
    inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.cta-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(184, 246, 94, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(184, 246, 94, 0.05) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(ellipse 72% 100% at 50% 0%, #000, transparent 76%);
  mask-image: radial-gradient(ellipse 72% 100% at 50% 0%, #000, transparent 76%);
  pointer-events: none;
}

.cta-panel::after {
  content: "";
  position: absolute;
  left: 50%;
  top: -1px;
  width: 260px;
  height: 1px;
  transform: translateX(-50%);
  background: linear-gradient(90deg, transparent, var(--lime), transparent);
  opacity: 0.7;
}

.cta-shield {
  position: absolute;
  right: 4%;
  bottom: -34px;
  width: 270px;
  height: auto;
  color: var(--lime);
  opacity: 0.075;
  transform: rotate(-7deg);
  pointer-events: none;
}

.cta-content {
  position: relative;
  z-index: 1;
}

.cta-content .eyebrow {
  justify-content: center;
}

.cta-content h2 {
  font-size: clamp(2.1rem, 4vw, 3.2rem);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -0.025em;
}

.cta-lead {
  max-width: 540px;
  margin: 18px auto 0;
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.9;
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 30px;
}

.cta-note {
  margin-top: 24px;
  color: var(--muted-2);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.1em;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer {
  position: relative;
  padding-top: 62px;
  border-top: 1px solid var(--line);
  background: #060906;
  overflow: hidden;
}

.footer-main {
  display: grid;
  grid-template-columns: 1.55fr 0.62fr 0.62fr 0.92fr;
  gap: 44px;
  padding-bottom: 50px;
}

.footer-brand p {
  max-width: 306px;
  margin-top: 18px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.9;
}

.footer-col {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.footer-col h4 {
  margin-bottom: 17px;
  color: var(--muted-2);
  font-family: var(--font-mono);
  font-size: 8.5px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.footer-col a {
  margin-bottom: 10px;
  color: #97a291;
  font-size: 12px;
  transition: color 0.2s ease;
}

.footer-col a:hover {
  color: var(--lime);
}

.footer-note {
  margin-top: 6px;
  color: var(--muted-2);
  font-family: var(--font-mono);
  font-size: 9px;
  line-height: 1.7;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  padding: 20px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  color: var(--muted-2);
  font-size: 10.5px;
}

.footer-bottom .legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 20px;
}

.footer-bottom a {
  transition: color 0.2s ease;
}

.footer-bottom a:hover {
  color: var(--lime);
}

.footer-wordmark {
  margin-top: 12px;
  padding-bottom: 0;
  color: rgba(255, 255, 255, 0.024);
  font-size: clamp(4rem, 12.5vw, 11.2rem);
  font-weight: 900;
  line-height: 0.72;
  letter-spacing: -0.045em;
  text-align: center;
  white-space: nowrap;
  user-select: none;
  transform: translateY(12%);
}

/* ==========================================================================
   TOAST
   ========================================================================== */
.toast {
  position: fixed;
  left: 50%;
  bottom: 30px;
  z-index: 200;
  display: flex;
  align-items: center;
  gap: 9px;
  max-width: calc(100% - 32px);
  padding: 11px 17px;
  border: 1px solid rgba(184, 246, 94, 0.3);
  border-radius: 8px;
  background: rgba(14, 19, 13, 0.97);
  box-shadow: 0 24px 60px -24px rgba(0, 0, 0, 0.95);
  color: var(--text);
  font-size: 12.5px;
  line-height: 1.5;
  opacity: 0;
  transform: translate(-50%, 14px);
  pointer-events: none;
  transition: opacity 0.28s ease, transform 0.28s var(--ease);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}

.toast::before {
  content: "";
  width: 6px;
  height: 6px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 10px var(--lime);
}

.toast.show {
  opacity: 1;
  transform: translate(-50%, 0);
}

/* ==========================================================================
   响应式
   ========================================================================== */
@media (max-width: 1180px) {
  .hero-inner {
    gap: 40px;
  }

  .hero-copy h1 {
    font-size: clamp(2.6rem, 4.2vw, 3.8rem);
  }

  .console {
    max-width: 480px;
  }

  .arch-grid {
    gap: 44px;
  }

  .faq-grid {
    gap: 50px;
  }

  .scene-card p {
    min-height: 86px;
  }
}

@media (max-width: 1024px) {
  .nav {
    gap: 22px;
    margin-left: 4px;
  }

  .header-inner {
    gap: 26px;
  }

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

  .cap-card p {
    min-height: 48px;
  }

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

  .security-panel {
    gap: 36px;
    padding: 36px;
    grid-template-columns: 1fr 1.1fr;
  }

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

  .scene-card p {
    min-height: 48px;
  }

  .compare-head span,
  .compare-row span {
    padding: 13px 13px;
  }

  .compare-head,
  .compare-row {
    grid-template-columns: 0.9fr 1fr 1.2fr;
  }
}

@media (max-width: 960px) {
  :root {
    --header-h: 72px;
  }

  .nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    z-index: 99;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    margin-left: 0;
    max-height: calc(100vh - var(--header-h));
    padding: 10px 24px 22px;
    overflow-y: auto;
    border-bottom: 1px solid var(--line);
    background: rgba(6, 9, 6, 0.98);
    -webkit-backdrop-filter: blur(22px);
    backdrop-filter: blur(22px);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    pointer-events: none;
    transition: opacity 0.25s ease, transform 0.25s var(--ease),
      visibility 0.25s;
  }

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

  .nav a {
    padding: 14px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    font-size: 14px;
    color: var(--text-soft);
  }

  .nav a::after {
    display: none;
  }

  .nav .nav-mobile-link {
    display: block;
    color: var(--lime);
    font-size: 13px;
  }

  .nav .nav-mobile-link:last-child {
    border-bottom: 0;
    padding-bottom: 4px;
  }

  .header-login {
    display: none;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .hero {
    padding-top: calc(var(--header-h) + 64px);
  }

  .hero-inner {
    grid-template-columns: 1fr;
    gap: 54px;
  }

  .hero-copy {
    max-width: 660px;
  }

  .hero-visual {
    justify-content: flex-start;
  }

  .console {
    max-width: 560px;
  }

  .hero-visual::before {
    right: auto;
    left: -80px;
  }

  .marquee {
    margin-top: 70px;
  }

  .stats-grid {
    padding: 44px 0;
  }

  .section {
    padding: 90px 0;
  }

  .section-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 18px;
    margin-bottom: 40px;
  }

  .section-side {
    max-width: 500px;
    padding-bottom: 0;
  }

  .arch-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .security-panel {
    grid-template-columns: 1fr;
    align-items: start;
    gap: 34px;
  }

  .security-copy > p:not(.eyebrow) {
    max-width: 560px;
  }

  .security-items {
    width: 100%;
  }

  .cmd {
    max-width: 560px;
  }

  .compare {
    max-width: 660px;
  }

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

  .faq-copy p {
    max-width: 480px;
  }

  .cta-section {
    padding-bottom: 90px;
  }

  .footer-main {
    grid-template-columns: 1.3fr 0.7fr 0.7fr;
    gap: 36px;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }

  .footer-brand p {
    max-width: 460px;
  }

  .site-footer {
    padding-top: 52px;
  }
}

@media (max-width: 680px) {
  :root {
    --header-h: 66px;
  }

  .container {
    width: calc(100% - 36px);
  }

  .brand-cn {
    font-size: 17px;
  }

  .brand-mark {
    width: 30px;
    height: 30px;
  }

  .header-actions {
    gap: 10px;
  }

  .header-inner {
    gap: 14px;
  }

  .header-actions .btn-sm {
    padding: 9px 12px;
    font-size: 11.5px;
  }

  .nav {
    padding-inline: 18px;
  }

  .hero {
    padding-top: calc(var(--header-h) + 48px);
  }

  .eyebrow {
    font-size: 9px;
    letter-spacing: 0.16em;
    margin-bottom: 15px;
  }

  .hero-copy h1 {
    font-size: clamp(2.1rem, 10.8vw, 2.75rem);
    margin-bottom: 20px;
  }

  .hero-copy h1 .accent {
    margin-top: 8px;
    font-size: 0.7em;
    line-height: 1.32;
  }

  .hero-lead {
    font-size: 13px;
    line-height: 1.9;
  }

  .hero-cta {
    margin-top: 26px;
    flex-direction: column;
    align-items: stretch;
  }

  .hero-cta .btn {
    width: 100%;
  }

  .hero-facts {
    gap: 12px 18px;
    margin-top: 24px;
  }

  .hero-facts li {
    font-size: 10.5px;
  }

  .hero-inner {
    gap: 40px;
  }

  .console-body {
    padding: 14px 13px 12px;
  }

  .console-bar {
    padding: 10px 12px;
  }

  .target {
    padding: 9px 10px;
    gap: 9px;
    margin-bottom: 13px;
  }

  .file-icon {
    width: 33px;
    height: 33px;
  }

  .target-name {
    font-size: 12px;
  }

  .target-meta {
    font-size: 8px;
  }

  .status-pill {
    padding: 3px 7px;
    font-size: 8px;
  }

  .chips span {
    font-size: 9px;
  }

  .tasks li {
    font-size: 10px;
  }

  .console-log {
    font-size: 8px;
    padding: 8px 10px;
  }

  .console-foot {
    font-size: 7.5px;
  }

  .marquee {
    margin-top: 52px;
    padding: 13px 0;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 30px 0;
    padding: 36px 0;
  }

  .stat {
    padding: 0 18px;
  }

  .stat:nth-child(odd) {
    padding-left: 0;
    border-left: 0;
  }

  .stat:nth-child(even) {
    border-left: 1px solid var(--line);
  }

  .stat strong {
    font-size: 1.8rem;
  }

  .stat-label {
    font-size: 11px;
  }

  .section {
    padding: 72px 0;
  }

  .section-head h2 {
    font-size: 1.72rem;
  }

  .section-side {
    font-size: 12.5px;
  }

  .cap-grid,
  .scene-grid,
  .flow-grid {
    grid-template-columns: 1fr;
  }

  .cap-card p,
  .scene-card p,
  .flow-step p {
    min-height: 0;
  }

  .flow-note {
    align-items: flex-start;
  }

  .security-panel {
    padding: 24px;
    border-radius: 18px;
  }

  .security-items {
    grid-template-columns: 1fr;
  }

  .security-item {
    min-height: 0;
    padding: 18px;
  }

  .cap-card {
    padding: 22px 20px;
  }

  .arch-copy h2 {
    font-size: 1.9rem;
  }

  .arch-lead {
    font-size: 12.5px;
  }

  .cmd pre {
    font-size: 9.5px;
    padding: 12px 13px;
  }

  /* 手机端对比表：改为纵向堆叠，信息不丢失且无需横向滚动 */
  .compare-head {
    display: none;
  }

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

  .compare-row span {
    padding: 4px 16px;
    font-size: 12px;
  }

  .compare-row span:first-child {
    padding-top: 15px;
    padding-bottom: 4px;
    color: var(--muted-2);
    font-family: var(--font-mono);
    font-size: 9px;
    font-weight: 400;
    letter-spacing: 0.08em;
  }

  .compare-row .hl {
    padding-bottom: 15px;
    border-left: 0;
    border-right: 0;
    background: rgba(184, 246, 94, 0.04);
  }

  .compare-row span:nth-child(2)::before {
    line-height: 1.65;
  }

  .compare-row .hl::before {
    line-height: 1.65;
  }

  .compare-foot {
    flex-wrap: wrap;
    padding: 12px 16px;
    gap: 6px 14px;
  }

  .faq-copy h2 {
    font-size: 1.85rem;
  }

  .accordion summary {
    font-size: 13px;
    padding: 18px 2px;
    gap: 16px;
  }

  .accordion .answer {
    padding: 0 20px 18px 2px;
    font-size: 12px;
  }

  .cta-section {
    padding: 8px 0 72px;
  }

  .cta-panel {
    padding: 48px 20px;
    border-radius: 18px;
  }

  .cta-content h2 {
    font-size: 1.95rem;
  }

  .cta-lead {
    font-size: 12.5px;
  }

  .cta-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .cta-actions .btn {
    width: 100%;
  }

  .cta-shield {
    width: 180px;
    opacity: 0.05;
    right: -40px;
    bottom: 10px;
  }

  .cta-note {
    font-size: 8px;
    letter-spacing: 0.06em;
  }

  .footer-main {
    grid-template-columns: 1fr 1fr;
    gap: 32px 24px;
    padding-bottom: 38px;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }

  .footer-contact {
    grid-column: 1 / -1;
  }

  .footer-contact a,
  .footer-contact .footer-note {
    display: inline-block;
    margin-right: 18px;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    font-size: 10px;
  }

  .footer-bottom .legal {
    gap: 14px;
  }

  .footer-wordmark {
    font-size: 14.2vw;
    transform: translateY(14%);
  }

  .toast {
    bottom: 20px;
    font-size: 12px;
  }
}

@media (max-width: 540px) {
  .br-mobile {
    display: inline;
  }
}

@media (max-width: 380px) {
  .hero-copy h1 {
    font-size: 2rem;
  }

  .hero-copy h1 .accent {
    font-size: 0.7em;
  }

  .header-actions .btn-sm {
    font-size: 10.5px;
    padding: 8px 10px;
  }

  .status-pill {
    display: none;
  }
}

/* ---------- 减少动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  .js .reveal {
    opacity: 1;
    transform: none;
  }

  .marquee-track {
    animation: none;
  }

  .progress span {
    animation: none;
    width: var(--p);
  }
}