/* ============================================================
   全球速运 GS-LOGISTICS · AI 指挥中心主题
   ============================================================ */
:root {
    --c-bg: #050810;
    --c-bg-2: #0a0f1e;
    --c-bg-3: #0e1530;
    --c-panel: rgba(13, 20, 40, 0.72);
    --c-cyan: #00f0ff;
    --c-purple: #a855f7;
    --c-green: #00ff88;
    --c-orange: #ff6b35;
    --c-text: #e8f4ff;
    --c-muted: #8fa3c8;
    --c-border: rgba(0, 240, 255, 0.18);
    --grad-main: linear-gradient(135deg, #00f0ff, #a855f7);
    --grad-hot: linear-gradient(135deg, #ff6b35, #a855f7);
    --glow-cyan: 0 0 18px rgba(0, 240, 255, 0.45);
    --glow-purple: 0 0 18px rgba(168, 85, 247, 0.45);
    --font-tech: 'Orbitron', 'Noto Sans SC', sans-serif;
    --font-body: 'Noto Sans SC', sans-serif;
    --tr: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
    font-family: var(--font-body);
    background: var(--c-bg);
    color: var(--c-text);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}
body.no-scroll { overflow: hidden; }

.container { max-width: 1320px; margin: 0 auto; padding: 0 24px; }
section { position: relative; padding: 110px 0; }

img, svg { max-width: 100%; }
button { font-family: inherit; cursor: pointer; }
input, select, textarea { font-family: inherit; }

::selection { background: rgba(0, 240, 255, 0.35); color: #fff; }

/* ---------- 全局装饰 ---------- */
.particles { position: fixed; inset: 0; z-index: 0; pointer-events: none; }

.global-scanline {
    position: fixed; inset: 0; z-index: 1; pointer-events: none; opacity: .5;
    background: repeating-linear-gradient(0deg, transparent 0 3px, rgba(0, 240, 255, 0.014) 3px 4px);
}

/* HUD 角标装饰 */
.hud-corner { position: relative; }
.hud-corner::before, .hud-corner::after {
    content: ''; position: absolute; width: 14px; height: 14px; pointer-events: none;
}
.hud-corner::before {
    top: 8px; left: 8px; border-top: 2px solid var(--c-cyan); border-left: 2px solid var(--c-cyan);
    filter: drop-shadow(0 0 4px rgba(0,240,255,.8));
}
.hud-corner::after {
    bottom: 8px; right: 8px; border-bottom: 2px solid var(--c-cyan); border-right: 2px solid var(--c-cyan);
    filter: drop-shadow(0 0 4px rgba(0,240,255,.8));
}

.hud-frame {
    position: relative; background: var(--c-panel); border: 1px solid var(--c-border);
    border-radius: 16px; padding: 32px; backdrop-filter: blur(12px);
    box-shadow: 0 0 40px rgba(0, 240, 255, 0.06), inset 0 0 60px rgba(0, 240, 255, 0.02);
}
.hud-frame::before, .hud-frame::after {
    content: ''; position: absolute; width: 22px; height: 22px; pointer-events: none;
}
.hud-frame::before {
    top: -1px; left: -1px; border-top: 2px solid var(--c-cyan); border-left: 2px solid var(--c-cyan);
    border-top-left-radius: 16px; filter: drop-shadow(0 0 6px rgba(0,240,255,.9));
}
.hud-frame::after {
    bottom: -1px; right: -1px; border-bottom: 2px solid var(--c-purple); border-right: 2px solid var(--c-purple);
    border-bottom-right-radius: 16px; filter: drop-shadow(0 0 6px rgba(168,85,247,.9));
}
.hud-frame-title {
    font-family: var(--font-tech); font-size: 12px; letter-spacing: 3px; color: var(--c-cyan);
    text-shadow: var(--glow-cyan); margin-bottom: 22px; display: flex; align-items: center; gap: 10px;
}
.hud-frame-title::before { content: ''; width: 8px; height: 8px; background: var(--c-cyan); border-radius: 2px; box-shadow: var(--glow-cyan); animation: blink 1.6s infinite; }

@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: .25; } }

/* ============================================================
   LOADING（进度条为纯 CSS 动画，保证可见）
   ============================================================ */
.loading-screen {
    position: fixed; inset: 0; z-index: 100000;
    background: radial-gradient(ellipse at center, #0a1226 0%, #04060d 70%);
    display: flex; align-items: center; justify-content: center;
    transition: opacity .5s ease, visibility .5s ease;
}
.loading-screen.hidden { opacity: 0; visibility: hidden; pointer-events: none; }

.loading-content { text-align: center; position: relative; width: min(420px, 86vw); }

.loading-logo { font-size: 64px; margin-bottom: 20px; animation: floatY 2.4s ease-in-out infinite; }
.loading-logo i {
    background: var(--grad-main); -webkit-background-clip: text; background-clip: text;
    -webkit-text-fill-color: transparent; filter: drop-shadow(0 0 18px rgba(0,240,255,.7));
}
.loading-text {
    font-family: var(--font-tech); font-size: 30px; font-weight: 900; letter-spacing: 6px;
    background: var(--grad-main); -webkit-background-clip: text; background-clip: text;
    -webkit-text-fill-color: transparent; margin-bottom: 8px;
}
.loading-sub { color: var(--c-muted); font-size: 13px; letter-spacing: 2px; margin-bottom: 30px; }

.loading-bar {
    height: 6px; border-radius: 3px; overflow: hidden; position: relative;
    background: rgba(255,255,255,.08); border: 1px solid rgba(0,240,255,.25);
}
/* 纯 CSS 驱动：0→100，2.2 秒 */
.loading-progress {
    height: 100%; width: 0; border-radius: 3px;
    background: linear-gradient(90deg, #00f0ff, #a855f7, #00f0ff);
    background-size: 200% 100%;
    box-shadow: 0 0 14px rgba(0,240,255,.9), 0 0 30px rgba(168,85,247,.5);
    animation: loadProgress 2.2s cubic-bezier(.45,.05,.35,1) forwards,
               gradFlow 1.2s linear infinite;
}
@keyframes loadProgress {
    0%   { width: 2%; }
    15%  { width: 14%; }
    35%  { width: 38%; }
    55%  { width: 55%; }
    72%  { width: 74%; }
    88%  { width: 90%; }
    100% { width: 100%; }
}
@keyframes gradFlow { 0% { background-position: 0% 50%; } 100% { background-position: 200% 50%; } }

.loading-percentage {
    font-family: var(--font-tech); font-size: 22px; color: var(--c-cyan);
    text-shadow: var(--glow-cyan); margin-top: 14px; letter-spacing: 2px;
}
.loading-scanline {
    position: absolute; left: 0; right: 0; height: 2px; top: 0;
    background: linear-gradient(90deg, transparent, rgba(0,240,255,.6), transparent);
    animation: scanY 2s ease-in-out infinite;
}
@keyframes scanY { 0%,100% { top: 0; opacity: 0; } 10%,90% { opacity: 1; } 50% { top: calc(100% - 2px); } }

/* ============================================================
   顶部通知
   ============================================================ */
.top-announcement {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1002;
    background: linear-gradient(90deg, rgba(0,240,255,.14), rgba(168,85,247,.14));
    border-bottom: 1px solid var(--c-border); backdrop-filter: blur(10px);
    display: flex; align-items: center; justify-content: center; padding: 10px 48px;
}
.announcement-content { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; justify-content: center; }
.announcement-pulse {
    width: 8px; height: 8px; border-radius: 50%; background: var(--c-green);
    box-shadow: 0 0 10px var(--c-green); animation: blink 1.4s infinite;
}
.announcement-text { font-size: 13.5px; color: var(--c-text); }
.announcement-cta {
    background: transparent; border: 1px solid var(--c-cyan); color: var(--c-cyan);
    padding: 4px 14px; border-radius: 20px; font-size: 12.5px; transition: var(--tr);
}
.announcement-cta:hover { background: rgba(0,240,255,.12); box-shadow: var(--glow-cyan); }
.announcement-close {
    position: absolute; right: 16px; top: 50%; transform: translateY(-50%);
    background: none; border: none; color: var(--c-muted); font-size: 15px; transition: var(--tr);
}
.announcement-close:hover { color: var(--c-cyan); transform: translateY(-50%) rotate(90deg); }

/* ============================================================
   导航
   ============================================================ */
.navbar {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    background: rgba(5, 8, 16, 0.75); backdrop-filter: blur(16px);
    border-bottom: 1px solid transparent; transition: var(--tr); padding-top: 40px;
}
.navbar.scrolled {
    background: rgba(4, 7, 14, 0.92); border-bottom-color: var(--c-border);
    box-shadow: 0 4px 30px rgba(0, 240, 255, 0.08);
}
.navbar .container { display: flex; justify-content: space-between; align-items: center; padding: 14px 24px; }

.nav-brand { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.logo-hex {
    width: 46px; height: 46px; display: flex; align-items: center; justify-content: center;
    font-size: 22px; color: var(--c-cyan); position: relative; flex-shrink: 0;
}
.logo-hex::before {
    content: ''; position: absolute; inset: 0; border: 2px solid var(--c-cyan);
    transform: rotate(45deg); border-radius: 8px; box-shadow: var(--glow-cyan), inset 0 0 10px rgba(0,240,255,.3);
    animation: hexPulse 3s ease-in-out infinite;
}
@keyframes hexPulse { 0%,100% { transform: rotate(45deg) scale(1); } 50% { transform: rotate(45deg) scale(1.06); } }
.logo-group { display: flex; flex-direction: column; }
.logo-text {
    font-size: 20px; font-weight: 900; font-family: var(--font-tech); letter-spacing: 1px;
    background: var(--grad-main); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.logo-tagline { font-size: 9px; letter-spacing: 4px; color: var(--c-muted); font-family: var(--font-tech); }

.nav-menu { display: flex; gap: 6px; }
.nav-link {
    color: var(--c-muted); text-decoration: none; font-size: 14.5px; font-weight: 500;
    padding: 8px 14px; border-radius: 8px; position: relative; transition: var(--tr);
}
.nav-link:hover { color: var(--c-cyan); background: rgba(0,240,255,.06); }
.nav-link.active { color: var(--c-cyan); text-shadow: 0 0 12px rgba(0,240,255,.6); }
.nav-link.active::after {
    content: ''; position: absolute; left: 14px; right: 14px; bottom: 2px; height: 2px;
    background: var(--grad-main); border-radius: 2px; box-shadow: var(--glow-cyan);
}

.nav-actions { display: flex; align-items: center; gap: 10px; }
.nav-icon-btn {
    width: 40px; height: 40px; border-radius: 10px; background: rgba(0,240,255,.08);
    border: 1px solid var(--c-border); color: var(--c-cyan); font-size: 16px; transition: var(--tr);
}
.nav-icon-btn:hover { background: rgba(0,240,255,.18); box-shadow: var(--glow-cyan); transform: translateY(-2px); }

.quote-btn {
    display: flex; align-items: center; gap: 7px; padding: 10px 20px; border: none; border-radius: 10px;
    background: var(--grad-main); color: #04101c; font-weight: 700; font-size: 14px; transition: var(--tr);
    box-shadow: 0 0 16px rgba(0,240,255,.35);
}
.quote-btn:hover { transform: translateY(-2px); box-shadow: 0 0 26px rgba(0,240,255,.6); }
.contact-btn {
    display: flex; align-items: center; gap: 7px; padding: 10px 18px; border-radius: 10px;
    background: transparent; border: 1px solid var(--c-border); color: var(--c-text); font-size: 14px; transition: var(--tr);
}
.contact-btn:hover { border-color: var(--c-cyan); color: var(--c-cyan); box-shadow: var(--glow-cyan); }

.nav-toggle { display: none; flex-direction: column; gap: 5px; width: 30px; padding: 4px 0; }
.nav-toggle span { height: 2px; background: var(--c-cyan); border-radius: 2px; transition: var(--tr); box-shadow: var(--glow-cyan); }
.nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ============================================================
   HERO
   ============================================================ */
.hero {
    min-height: 100vh; display: flex; flex-direction: column; justify-content: center;
    padding: 140px 0 60px; overflow: hidden;
    background:
        radial-gradient(ellipse 60% 50% at 75% 40%, rgba(168,85,247,.12) 0%, transparent 60%),
        radial-gradient(ellipse 50% 45% at 20% 65%, rgba(0,240,255,.1) 0%, transparent 60%),
        var(--c-bg);
}
.hero-bg-grid {
    position: absolute; inset: 0; pointer-events: none;
    background-image:
        linear-gradient(rgba(0,240,255,.045) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0,240,255,.045) 1px, transparent 1px);
    background-size: 46px 46px;
    mask-image: radial-gradient(ellipse 75% 65% at 50% 45%, #000 30%, transparent 75%);
    -webkit-mask-image: radial-gradient(ellipse 75% 65% at 50% 45%, #000 30%, transparent 75%);
    animation: gridMove 18s linear infinite;
}
@keyframes gridMove { 0% { background-position: 0 0; } 100% { background-position: 46px 46px; } }

.hero-glow { position: absolute; width: 480px; height: 480px; border-radius: 50%; filter: blur(90px); pointer-events: none; }
.hero-glow-1 { top: 8%; right: -6%; background: rgba(168,85,247,.16); animation: glowFloat 9s ease-in-out infinite; }
.hero-glow-2 { bottom: -4%; left: -6%; background: rgba(0,240,255,.12); animation: glowFloat 11s ease-in-out infinite reverse; }
@keyframes glowFloat { 0%,100% { transform: translate(0,0); } 50% { transform: translate(-36px, 30px); } }

.hero-layout {
    display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 48px;
    align-items: center; position: relative; z-index: 2; width: 100%;
}

.hero-badge {
    display: inline-flex; align-items: center; gap: 10px; padding: 9px 18px; margin-bottom: 26px;
    background: rgba(0,240,255,.07); border: 1px solid var(--c-border); border-radius: 4px;
    font-size: 13px; color: var(--c-cyan); letter-spacing: 1px;
}
.badge-dot {
    width: 8px; height: 8px; border-radius: 50%; background: var(--c-green);
    box-shadow: 0 0 10px var(--c-green); animation: blink 1.4s infinite;
}
.badge-text { font-family: var(--font-tech); font-size: 11.5px; }

.hero-title { font-size: 60px; font-weight: 900; line-height: 1.12; margin-bottom: 22px; }
.title-line { display: block; opacity: 0; transform: translateY(34px); animation: riseIn .8s cubic-bezier(.2,.7,.3,1) forwards; }
.title-line:nth-child(1) { animation-delay: .15s; }
.title-line:nth-child(2) { animation-delay: .3s; }
.title-line:nth-child(3) { animation-delay: .45s; }
.title-line.grad {
    background: var(--grad-main); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 0 22px rgba(0,240,255,.35));
}
@keyframes riseIn { to { opacity: 1; transform: translateY(0); } }

.hero-typewriter {
    display: flex; align-items: center; gap: 8px; min-height: 34px; margin-bottom: 16px;
    font-family: var(--font-tech); font-size: 17px; color: var(--c-green);
    text-shadow: 0 0 14px rgba(0,255,136,.55);
}
.tw-prefix { color: var(--c-muted); }
.tw-cursor { animation: blink 1s infinite; color: var(--c-green); }

.hero-description { color: var(--c-muted); font-size: 16.5px; margin-bottom: 30px; line-height: 1.9; }

.hero-buttons { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 30px; }

.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 9px;
    padding: 14px 30px; border-radius: 10px; font-size: 15px; font-weight: 700;
    border: none; text-decoration: none; transition: var(--tr); position: relative; overflow: hidden;
}
.btn-primary {
    background: var(--grad-main); color: #04101c;
    box-shadow: 0 0 20px rgba(0,240,255,.4);
}
.btn-primary::after {
    content: ''; position: absolute; top: 0; left: -80%; width: 50%; height: 100%;
    background: linear-gradient(105deg, transparent, rgba(255,255,255,.45), transparent);
    animation: btnShine 3.2s ease-in-out infinite;
}
@keyframes btnShine { 0%,60% { left: -80%; } 100% { left: 160%; } }
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 0 34px rgba(0,240,255,.65); }
.btn-ghost {
    background: rgba(255,255,255,.03); color: var(--c-text);
    border: 1px solid var(--c-border);
}
.btn-ghost:hover { border-color: var(--c-cyan); color: var(--c-cyan); box-shadow: var(--glow-cyan); transform: translateY(-3px); }
.btn-block { width: 100%; }

.hero-features { display: flex; flex-wrap: wrap; gap: 10px 22px; }
.hf-item { display: flex; align-items: center; gap: 8px; color: var(--c-muted); font-size: 13.5px; }
.hf-item i { color: var(--c-cyan); filter: drop-shadow(0 0 6px rgba(0,240,255,.7)); }

/* ---- 全息地球 ---- */
.hero-visual { display: flex; flex-direction: column; align-items: center; position: relative; }
.holo-globe { position: relative; width: min(420px, 90%); aspect-ratio: 1; }

.globe-core {
    position: absolute; inset: 17%; border-radius: 50%;
    background:
        radial-gradient(circle at 32% 30%, rgba(0,240,255,.75) 0%, rgba(0,150,255,.35) 32%, rgba(10,16,40,.9) 68%),
        radial-gradient(circle at 68% 72%, rgba(168,85,247,.5) 0%, transparent 45%);
    box-shadow:
        0 0 60px rgba(0,240,255,.35),
        inset 0 0 70px rgba(0,240,255,.25),
        inset -14px -14px 44px rgba(168,85,247,.3);
    animation: coreBreathe 4.5s ease-in-out infinite;
}
@keyframes coreBreathe { 0%,100% { box-shadow: 0 0 60px rgba(0,240,255,.35), inset 0 0 70px rgba(0,240,255,.25), inset -14px -14px 44px rgba(168,85,247,.3); } 50% { box-shadow: 0 0 90px rgba(0,240,255,.55), inset 0 0 90px rgba(0,240,255,.35), inset -14px -14px 44px rgba(168,85,247,.4); } }

.globe-grid {
    position: absolute; inset: 17%; border-radius: 50%; opacity: .5;
    background:
        repeating-radial-gradient(circle at 50% 50%, transparent 0 22px, rgba(0,240,255,.22) 22px 23px),
        repeating-conic-gradient(from 0deg, transparent 0 14deg, rgba(0,240,255,.16) 14deg 15deg);
    animation: gridSpin 26s linear infinite;
}
@keyframes gridSpin { to { transform: rotate(360deg); } }

.globe-ring {
    position: absolute; inset: 4%; border-radius: 50%;
    border: 1px solid rgba(0,240,255,.4);
    box-shadow: 0 0 14px rgba(0,240,255,.25), inset 0 0 14px rgba(0,240,255,.15);
}
.ring-1 { animation: ringA 12s linear infinite; }
.ring-2 { inset: -3%; border-color: rgba(168,85,247,.45); animation: ringB 16s linear infinite reverse; }
.ring-3 { inset: 11%; border-style: dashed; border-color: rgba(0,255,136,.35); animation: ringC 20s linear infinite; }
@keyframes ringA { from { transform: rotateX(68deg) rotateZ(0); } to { transform: rotateX(68deg) rotateZ(360deg); } }
@keyframes ringB { from { transform: rotateX(72deg) rotateY(16deg) rotateZ(0); } to { transform: rotateX(72deg) rotateY(16deg) rotateZ(-360deg); } }
@keyframes ringC { from { transform: rotateX(64deg) rotateY(-20deg) rotateZ(0); } to { transform: rotateX(64deg) rotateY(-20deg) rotateZ(360deg); } }

.orbit-plane { position: absolute; inset: 0; pointer-events: none; }
.op-1 { transform: rotateX(68deg); animation: orbitTiltA 12s linear infinite; }
.op-2 { transform: rotateX(72deg) rotateY(16deg); animation: orbitTiltB 16s linear infinite reverse; }
.op-3 { transform: rotateX(64deg) rotateY(-20deg); animation: orbitTiltC 20s linear infinite; }
@keyframes orbitTiltA { from { transform: rotateX(68deg) rotateZ(0); } to { transform: rotateX(68deg) rotateZ(360deg); } }
@keyframes orbitTiltB { from { transform: rotateX(72deg) rotateY(16deg) rotateZ(0); } to { transform: rotateX(72deg) rotateY(16deg) rotateZ(-360deg); } }
@keyframes orbitTiltC { from { transform: rotateX(64deg) rotateY(-20deg) rotateZ(0); } to { transform: rotateX(64deg) rotateY(-20deg) rotateZ(360deg); } }

.orbit-dot {
    position: absolute; top: 50%; left: 50%; width: 9px; height: 9px; margin: -4.5px;
    border-radius: 50%; background: var(--c-cyan);
    box-shadow: 0 0 14px var(--c-cyan), 0 0 30px rgba(0,240,255,.5);
    transform: translateX(calc(min(420px, 90%) * 0.46));
}
.orbit-dot.d2 { background: var(--c-purple); box-shadow: 0 0 14px var(--c-purple); width: 7px; height: 7px; }
.orbit-dot.d3 { background: var(--c-green); box-shadow: 0 0 14px var(--c-green); width: 6px; height: 6px; }

.globe-hud { position: absolute; width: 26px; height: 26px; }
.hud-tl { top: -4px; left: -4px; border-top: 2px solid var(--c-cyan); border-left: 2px solid var(--c-cyan); }
.hud-tr { top: -4px; right: -4px; border-top: 2px solid var(--c-cyan); border-right: 2px solid var(--c-cyan); }
.hud-bl { bottom: -4px; left: -4px; border-bottom: 2px solid var(--c-purple); border-left: 2px solid var(--c-purple); }
.hud-br { bottom: -4px; right: -4px; border-bottom: 2px solid var(--c-purple); border-right: 2px solid var(--c-purple); }

.globe-label {
    position: absolute; left: 50%; transform: translateX(-50%);
    font-family: var(--font-tech); font-size: 10px; letter-spacing: 3px; color: var(--c-cyan);
    text-shadow: var(--glow-cyan); white-space: nowrap;
}
.globe-label.top { top: -34px; }
.globe-label.bottom { bottom: -34px; color: var(--c-purple); text-shadow: var(--glow-purple); font-size: 9px; }

.globe-data-chip {
    position: absolute; display: flex; align-items: center; gap: 8px;
    background: rgba(6,12,26,.85); border: 1px solid var(--c-border); border-radius: 10px;
    padding: 9px 14px; font-size: 12px; color: var(--c-text); backdrop-filter: blur(8px);
    box-shadow: 0 4px 22px rgba(0,0,0,.4); white-space: nowrap;
    animation: chipFloat 6s ease-in-out infinite;
}
.globe-data-chip i { color: var(--c-cyan); }
.chip-1 { top: 6%; right: -4%; animation-delay: 0s; }
.chip-2 { bottom: 22%; left: -7%; animation-delay: 1.4s; }
.chip-3 { bottom: 2%; right: 4%; animation-delay: 2.6s; }
@keyframes chipFloat { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }

/* ---- 数据仪表盘 ---- */
.hero-stats { margin-top: 64px; position: relative; z-index: 2; }
.stats-container { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.stat-item {
    display: flex; align-items: center; gap: 16px; padding: 22px;
    background: var(--c-panel); border: 1px solid var(--c-border); border-radius: 14px;
    backdrop-filter: blur(10px); transition: var(--tr);
}
.stat-item:hover { transform: translateY(-5px); border-color: rgba(0,240,255,.5); box-shadow: 0 8px 30px rgba(0,240,255,.12); }
.stat-icon { font-size: 26px; color: var(--c-cyan); filter: drop-shadow(0 0 8px rgba(0,240,255,.7)); }
.stat-number {
    font-family: var(--font-tech); font-size: 32px; font-weight: 900; line-height: 1.1;
    background: var(--grad-main); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.stat-label { font-size: 12.5px; color: var(--c-muted); letter-spacing: .5px; }

.scroll-indicator {
    position: absolute; bottom: 26px; left: 50%; transform: translateX(-50%);
    text-align: center; color: var(--c-muted); animation: bob 2s infinite;
}
.scroll-text { font-family: var(--font-tech); font-size: 10px; letter-spacing: 4px; margin-bottom: 6px; }
.scroll-indicator i { color: var(--c-cyan); }
@keyframes bob { 0%,100% { transform: translate(-50%, 0); } 50% { transform: translate(-50%, 9px); } }

/* ============================================================
   快捷服务
   ============================================================ */
.quick-services { padding: 0; margin-top: -40px; z-index: 5; position: relative; }
.quick-services .container { max-width: 1150px; }
.quick-services-grid {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px;
    background: var(--c-panel); border: 1px solid var(--c-border); border-radius: 18px;
    padding: 20px; backdrop-filter: blur(14px);
    box-shadow: 0 20px 60px rgba(0,0,0,.5), 0 0 40px rgba(0,240,255,.05);
}
.quick-service-item {
    display: flex; align-items: center; gap: 14px; padding: 16px; border-radius: 12px;
    background: rgba(255,255,255,.02); border: 1px solid transparent;
    text-decoration: none; color: var(--c-text); text-align: left; transition: var(--tr); font-size: 15px;
}
.quick-service-item:hover { background: rgba(0,240,255,.07); border-color: var(--c-border); transform: translateY(-4px); box-shadow: 0 10px 26px rgba(0,240,255,.1); }
.qs-icon {
    width: 48px; height: 48px; flex-shrink: 0; display: flex; align-items: center; justify-content: center;
    background: rgba(0,240,255,.1); border: 1px solid var(--c-border); border-radius: 12px;
    color: var(--c-cyan); font-size: 19px; transition: var(--tr);
}
.quick-service-item:hover .qs-icon { background: var(--grad-main); color: #04101c; box-shadow: var(--glow-cyan); }
.qs-info h4 { font-size: 15.5px; font-weight: 700; margin-bottom: 2px; }
.qs-info p { font-size: 12px; color: var(--c-muted); }

/* ============================================================
   通用 Section 头部
   ============================================================ */
.section-header { text-align: center; margin-bottom: 60px; position: relative; z-index: 2; }
.section-badge {
    display: inline-flex; align-items: center; gap: 8px; padding: 7px 18px; margin-bottom: 18px;
    font-family: var(--font-tech); font-size: 11.5px; letter-spacing: 3px; color: var(--c-cyan);
    background: rgba(0,240,255,.07); border: 1px solid var(--c-border); border-radius: 20px;
    text-shadow: 0 0 10px rgba(0,240,255,.6);
}
.badge-icon { color: var(--c-purple); }
.section-title { font-size: 40px; font-weight: 900; margin-bottom: 14px; }
.section-subtitle { color: var(--c-muted); font-size: 16px; }

/* ============================================================
   AI 调度区
   ============================================================ */
.ai-section { background: linear-gradient(180deg, var(--c-bg) 0%, var(--c-bg-2) 50%, var(--c-bg) 100%); }
.ai-layout { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 36px; align-items: stretch; }

.ai-visual { display: flex; flex-direction: column; }
.nn-svg { width: 100%; height: auto; flex: 1; }
.nn-links line { stroke: rgba(0,240,255,.16); stroke-width: 1; }
.nn-nodes circle {
    fill: #0a1a30; stroke: var(--c-cyan); stroke-width: 2;
    filter: drop-shadow(0 0 6px rgba(0,240,255,.8));
    animation: nodePulse 2.6s ease-in-out infinite;
}
.nn-nodes circle[data-n="out"] { stroke: var(--c-purple); filter: drop-shadow(0 0 10px rgba(168,85,247,.9)); }
@keyframes nodePulse { 0%,100% { opacity: .75; } 50% { opacity: 1; } }
.nn-pulses circle { fill: #fff; filter: drop-shadow(0 0 6px var(--c-cyan)); }
.nn-legend { display: flex; flex-wrap: wrap; gap: 10px 22px; margin-top: 16px; font-size: 12.5px; color: var(--c-muted); }
.nn-legend span { display: flex; align-items: center; gap: 7px; }
.dot { width: 9px; height: 9px; border-radius: 50%; display: inline-block; }
.dot-in { background: var(--c-cyan); box-shadow: 0 0 8px var(--c-cyan); }
.dot-mid { background: var(--c-purple); box-shadow: 0 0 8px var(--c-purple); }
.dot-out { background: var(--c-green); box-shadow: 0 0 8px var(--c-green); }

.ai-features { display: flex; flex-direction: column; gap: 16px; }
.ai-feature-item {
    display: flex; gap: 16px; padding: 20px; border-radius: 14px;
    background: var(--c-panel); border: 1px solid var(--c-border); transition: var(--tr);
}
.ai-feature-item:hover { transform: translateX(6px); border-color: rgba(0,240,255,.5); box-shadow: -4px 0 20px rgba(0,240,255,.12); }
.aif-icon {
    width: 50px; height: 50px; flex-shrink: 0; display: flex; align-items: center; justify-content: center;
    background: rgba(168,85,247,.12); border: 1px solid rgba(168,85,247,.35); border-radius: 12px;
    color: var(--c-purple); font-size: 20px; text-shadow: 0 0 12px rgba(168,85,247,.8);
}
.ai-feature-item h4 { font-size: 16.5px; margin-bottom: 5px; }
.ai-feature-item p { font-size: 13.5px; color: var(--c-muted); }
.ai-features .btn { margin-top: 6px; }

/* ============================================================
   全球网络地图
   ============================================================ */
.network-section { background: var(--c-bg-2); }
.network-map { max-width: 1100px; margin: 0 auto; }
.map-svg { width: 100%; height: auto; display: block; }

.map-grid line { stroke: rgba(0,240,255,.06); stroke-width: 1; }

.routes path {
    fill: none; stroke: url(#nodeGlow); stroke-width: 0;
    stroke: rgba(0,240,255,.4); stroke-width: 1.6;
    stroke-dasharray: 7 9; stroke-linecap: round;
    animation: dashFlow 1.6s linear infinite;
    filter: drop-shadow(0 0 4px rgba(0,240,255,.55));
}
.routes path:nth-child(even) { stroke: rgba(168,85,247,.42); filter: drop-shadow(0 0 4px rgba(168,85,247,.55)); }
@keyframes dashFlow { to { stroke-dashoffset: -32; } }

.map-nodes .hub {
    fill: var(--c-cyan); stroke: #fff; stroke-width: 1.5;
    filter: drop-shadow(0 0 8px var(--c-cyan));
}
.map-nodes .hub.purple { fill: var(--c-purple); filter: drop-shadow(0 0 8px var(--c-purple)); }
.map-nodes .hub.green { fill: var(--c-green); filter: drop-shadow(0 0 8px var(--c-green)); }
.map-nodes .hub.orange { fill: var(--c-orange); filter: drop-shadow(0 0 8px var(--c-orange)); }
.map-nodes .halo {
    fill: none; stroke: rgba(0,240,255,.55); stroke-width: 1.5;
    animation: haloRing 2.4s ease-out infinite; transform-origin: center; transform-box: fill-box;
}
.map-nodes .halo.purple { stroke: rgba(168,85,247,.55); }
.map-nodes .halo.green { stroke: rgba(0,255,136,.55); }
.map-nodes .halo.orange { stroke: rgba(255,107,53,.55); }
@keyframes haloRing { 0% { transform: scale(1); opacity: .9; } 100% { transform: scale(3.2); opacity: 0; } }

.map-labels text {
    fill: var(--c-muted); font-size: 13px; font-family: var(--font-tech);
    letter-spacing: 1px; text-anchor: middle;
}
.map-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 24px; }
.ms-item {
    text-align: center; padding: 16px; border-radius: 12px;
    background: rgba(255,255,255,.025); border: 1px solid var(--c-border);
}
.ms-value {
    display: block; font-family: var(--font-tech); font-size: 26px; font-weight: 900;
    color: var(--c-cyan); text-shadow: var(--glow-cyan); margin-bottom: 4px;
}
.ms-label { font-size: 12.5px; color: var(--c-muted); }

/* ============================================================
   服务
   ============================================================ */
.services { background: var(--c-bg); }
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }

.service-card {
    position: relative; padding: 30px; border-radius: 18px; overflow: hidden;
    background: var(--c-panel); border: 1px solid var(--c-border); backdrop-filter: blur(10px);
    transition: var(--tr);
}
.service-card::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
    background: var(--grad-main); transform: scaleX(0); transform-origin: left;
    transition: transform .45s ease; box-shadow: var(--glow-cyan);
}
.service-card:hover::before { transform: scaleX(1); }
.service-card:hover { transform: translateY(-9px); border-color: rgba(0,240,255,.5); box-shadow: 0 18px 46px rgba(0,240,255,.13); }
.service-card.premium { background: linear-gradient(150deg, rgba(0,240,255,.09), rgba(168,85,247,.09)), var(--c-panel); border-color: rgba(0,240,255,.35); }

.card-badge {
    position: absolute; top: 18px; right: 18px; padding: 4px 13px; border-radius: 20px;
    background: var(--grad-hot); color: #fff; font-size: 11.5px; font-weight: 700; letter-spacing: 1px;
    box-shadow: 0 0 14px rgba(255,107,53,.5);
}
.service-icon {
    width: 62px; height: 62px; display: flex; align-items: center; justify-content: center;
    font-size: 26px; color: var(--c-cyan); margin-bottom: 20px;
    background: rgba(0,240,255,.08); border: 1px solid var(--c-border); border-radius: 14px;
    text-shadow: 0 0 14px rgba(0,240,255,.8); transition: var(--tr);
}
.service-card:hover .service-icon { background: var(--grad-main); color: #04101c; text-shadow: none; box-shadow: var(--glow-cyan); }
.service-title { font-size: 21px; font-weight: 700; margin-bottom: 10px; }
.service-description { color: var(--c-muted); font-size: 13.5px; margin-bottom: 18px; min-height: 44px; }
.service-features { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }
.feature-tag {
    display: inline-flex; align-items: center; gap: 5px; padding: 4px 11px; border-radius: 14px;
    background: rgba(0,240,255,.07); border: 1px solid rgba(0,240,255,.16);
    color: var(--c-cyan); font-size: 11.5px;
}
.feature-tag i { font-size: 9px; }
.service-price {
    display: flex; justify-content: space-between; align-items: baseline;
    padding: 14px 0; border-top: 1px dashed rgba(0,240,255,.18); margin-bottom: 16px;
}
.price-label { color: var(--c-muted); font-size: 13px; }
.price-value { font-family: var(--font-tech); font-size: 24px; font-weight: 900; color: var(--c-orange); text-shadow: 0 0 14px rgba(255,107,53,.55); }
.price-value small { font-size: 12px; font-weight: 500; color: var(--c-muted); }
.service-btn {
    width: 100%; padding: 12px; border-radius: 10px; font-size: 14.5px; font-weight: 700;
    background: rgba(255,255,255,.03); border: 1px solid var(--c-border); color: var(--c-text);
    transition: var(--tr); display: flex; align-items: center; justify-content: center; gap: 8px;
}
.service-btn:hover { background: var(--grad-main); color: #04101c; border-color: transparent; box-shadow: var(--glow-cyan); }

/* ============================================================
   追踪
   ============================================================ */
.tracking { background: var(--c-bg-2); }
.tracking-container { max-width: 860px; margin: 0 auto; }
.tracking-input-group { display: flex; gap: 12px; margin-bottom: 16px; }
.tracking-input {
    flex: 1; padding: 15px 20px; border-radius: 10px; font-size: 15px; letter-spacing: 1px;
    background: rgba(0,0,0,.35); border: 1px solid var(--c-border); color: var(--c-text);
    transition: var(--tr);
}
.tracking-input::placeholder { color: rgba(143,163,200,.55); letter-spacing: 0; }
.tracking-input:focus { outline: none; border-color: var(--c-cyan); box-shadow: 0 0 0 3px rgba(0,240,255,.12), var(--glow-cyan); }
.tracking-btn {
    display: flex; align-items: center; gap: 9px; padding: 15px 28px; border: none; border-radius: 10px;
    background: var(--grad-main); color: #04101c; font-size: 15px; font-weight: 700; transition: var(--tr);
    box-shadow: 0 0 16px rgba(0,240,255,.3);
}
.tracking-btn:hover { transform: translateY(-2px); box-shadow: 0 0 28px rgba(0,240,255,.55); }
.tracking-btn:disabled { opacity: .65; cursor: not-allowed; }
.tracking-tips { display: flex; flex-wrap: wrap; gap: 10px 26px; color: var(--c-muted); font-size: 12.5px; }
.tracking-tips i { color: var(--c-purple); margin-right: 5px; }

.tracking-result { margin-top: 30px; padding-top: 26px; border-top: 1px dashed var(--c-border); animation: fadeUp .5s ease; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: translateY(0); } }
.result-header { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 14px; margin-bottom: 28px; }
.result-status { display: flex; align-items: center; gap: 15px; }
.status-icon {
    width: 54px; height: 54px; border-radius: 50%; display: flex; align-items: center; justify-content: center;
    font-size: 21px; color: #04101c; background: var(--grad-main); box-shadow: var(--glow-cyan);
    animation: coreBreathe 3s ease-in-out infinite;
}
.status-info h4 { font-size: 18px; color: var(--c-green); text-shadow: 0 0 12px rgba(0,255,136,.5); }
.status-info p { font-size: 13px; color: var(--c-muted); }
.result-actions { display: flex; gap: 10px; }
.action-btn {
    display: flex; align-items: center; gap: 7px; padding: 9px 17px; border-radius: 9px;
    background: rgba(255,255,255,.04); border: 1px solid var(--c-border); color: var(--c-text);
    font-size: 13px; transition: var(--tr);
}
.action-btn:hover { border-color: var(--c-cyan); color: var(--c-cyan); box-shadow: var(--glow-cyan); }

.tracking-timeline { position: relative; padding-left: 34px; }
.tracking-timeline::before {
    content: ''; position: absolute; left: 13px; top: 6px; bottom: 6px; width: 2px;
    background: linear-gradient(180deg, var(--c-cyan), var(--c-purple), transparent);
    box-shadow: 0 0 8px rgba(0,240,255,.5);
}
.tl-item { position: relative; padding-bottom: 28px; }
.tl-item:last-child { padding-bottom: 0; }
.tl-icon {
    position: absolute; left: -34px; width: 28px; height: 28px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center; font-size: 11px;
    background: #0a1226; border: 2px solid rgba(143,163,200,.4); color: var(--c-muted);
}
.tl-item.done .tl-icon { background: rgba(0,240,255,.15); border-color: var(--c-cyan); color: var(--c-cyan); box-shadow: var(--glow-cyan); }
.tl-item.active .tl-icon { background: var(--grad-main); border-color: transparent; color: #04101c; animation: coreBreathe 2s infinite; }
.tl-body h5 { font-size: 15.5px; margin-bottom: 3px; }
.tl-body p { font-size: 13px; color: var(--c-muted); }

/* ============================================================
   新闻
   ============================================================ */
.news { background: var(--c-bg); }
.news-tabs { display: flex; justify-content: center; gap: 10px; flex-wrap: wrap; margin-bottom: 36px; }
.news-tab-btn {
    padding: 9px 24px; border-radius: 20px; font-size: 14px;
    background: rgba(255,255,255,.03); border: 1px solid var(--c-border); color: var(--c-muted);
    transition: var(--tr);
}
.news-tab-btn:hover { color: var(--c-cyan); border-color: var(--c-cyan); }
.news-tab-btn.active { background: var(--grad-main); color: #04101c; border-color: transparent; font-weight: 700; box-shadow: var(--glow-cyan); }

.news-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.news-card {
    display: flex; flex-direction: column; border-radius: 16px; overflow: hidden; text-align: left;
    background: var(--c-panel); border: 1px solid var(--c-border); cursor: pointer; transition: var(--tr);
}
.news-card:hover { transform: translateY(-7px); border-color: rgba(0,240,255,.5); box-shadow: 0 16px 40px rgba(0,240,255,.12); }
.news-card.featured { grid-column: span 2; flex-direction: row; }
.news-image { position: relative; min-height: 190px; overflow: hidden; }
.news-card.featured .news-image { flex: 0 0 44%; min-height: 240px; }
.img-1 { background: linear-gradient(135deg, #0b2a4a 0%, #123a6b 45%, #3b1d6e 100%); }
.img-2 { background: linear-gradient(135deg, #0d2b3e 0%, #0f4c5c 50%, #6e2a8f 100%); }
.img-3 { background: linear-gradient(135deg, #3d1a0e 0%, #7a3b12 55%, #1d1a4a 100%); }
.img-4 { background: linear-gradient(135deg, #062b26 0%, #0d5c46 55%, #16215c 100%); }
.news-image::after {
    content: ''; position: absolute; inset: 0;
    background:
        linear-gradient(rgba(0,240,255,.05) 1px, transparent 1px) 0 0/100% 26px,
        linear-gradient(90deg, rgba(0,240,255,.05) 1px, transparent 1px) 0 0/26px 100%;
    animation: gridMove 14s linear infinite;
}
.news-category {
    position: absolute; top: 14px; left: 14px; z-index: 2; padding: 4px 12px; border-radius: 14px;
    background: rgba(4,8,18,.8); border: 1px solid var(--c-border); color: var(--c-cyan); font-size: 11.5px;
}
.news-date {
    position: absolute; top: 14px; right: 14px; z-index: 2; padding: 4px 12px; border-radius: 14px;
    background: rgba(4,8,18,.8); color: var(--c-muted); font-size: 11.5px; font-family: var(--font-tech);
}
.news-body { padding: 22px; display: flex; flex-direction: column; flex: 1; }
.news-title { font-size: 18.5px; line-height: 1.45; margin-bottom: 10px; }
.news-excerpt { color: var(--c-muted); font-size: 13.5px; flex: 1; }
.news-meta { display: flex; gap: 18px; margin-top: 16px; color: var(--c-muted); font-size: 12.5px; align-items: center; }
.news-meta i { margin-right: 4px; color: var(--c-cyan); }
.read-more { margin-left: auto; color: var(--c-cyan); font-weight: 600; }
.news-card:hover .read-more i { transform: translateX(4px); transition: var(--tr); }

/* ============================================================
   案例
   ============================================================ */
.cases { background: var(--c-bg-2); }
.cases-slider { position: relative; }
.cases-track {
    display: flex; gap: 22px; overflow-x: auto; scroll-snap-type: x mandatory;
    padding: 6px 4px 18px; scrollbar-width: none;
}
.cases-track::-webkit-scrollbar { display: none; }
.case-card {
    flex: 0 0 380px; scroll-snap-align: start; padding: 26px; border-radius: 16px;
    background: var(--c-panel); border: 1px solid var(--c-border); transition: var(--tr);
}
.case-card:hover { border-color: rgba(168,85,247,.5); box-shadow: 0 14px 36px rgba(168,85,247,.12); transform: translateY(-5px); }
.case-head { display: flex; align-items: center; gap: 14px; margin-bottom: 18px; }
.company-logo {
    width: 52px; height: 52px; border-radius: 13px; display: flex; align-items: center; justify-content: center;
    background: var(--grad-main); color: #04101c; font-size: 21px; box-shadow: var(--glow-cyan); flex-shrink: 0;
}
.case-head h4 { font-size: 16.5px; }
.case-head span { font-size: 12px; color: var(--c-muted); }
.case-quote { font-size: 14px; color: var(--c-muted); font-style: italic; line-height: 1.8; margin-bottom: 20px; min-height: 76px; }
.case-results { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 16px; }
.cr-item { text-align: center; padding: 12px 6px; background: rgba(0,240,255,.05); border: 1px solid var(--c-border); border-radius: 10px; }
.cr-item b { display: block; font-family: var(--font-tech); font-size: 19px; color: var(--c-cyan); text-shadow: 0 0 10px rgba(0,240,255,.6); }
.cr-item span { font-size: 11px; color: var(--c-muted); }
.case-stars { color: #ffc94d; display: flex; gap: 4px; font-size: 13px; }

.slider-controls { display: flex; justify-content: center; gap: 12px; margin-top: 10px; }
.slider-btn {
    width: 46px; height: 46px; border-radius: 50%; font-size: 15px;
    background: rgba(255,255,255,.04); border: 1px solid var(--c-border); color: var(--c-text); transition: var(--tr);
}
.slider-btn:hover { background: var(--grad-main); color: #04101c; border-color: transparent; box-shadow: var(--glow-cyan); }

.partners { margin-top: 70px; text-align: center; }
.partners-title { font-size: 18px; margin-bottom: 26px; color: var(--c-muted); letter-spacing: 2px; }
.partners-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 14px; }
.partner-logo {
    display: flex; flex-direction: column; align-items: center; gap: 9px; padding: 20px 10px;
    background: rgba(255,255,255,.02); border: 1px solid var(--c-border); border-radius: 14px;
    color: var(--c-muted); transition: var(--tr);
}
.partner-logo:hover { color: var(--c-cyan); border-color: rgba(0,240,255,.5); transform: translateY(-5px); box-shadow: 0 10px 24px rgba(0,240,255,.1); }
.partner-logo i { font-size: 24px; }
.partner-logo span { font-size: 12px; }

/* ============================================================
   关于
   ============================================================ */
.about { background: var(--c-bg); }
.about-layout { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 52px; align-items: start; }

.about-timeline { position: relative; padding-left: 26px; }
.about-timeline::before {
    content: ''; position: absolute; left: 9px; top: 8px; bottom: 8px; width: 2px;
    background: linear-gradient(180deg, var(--c-cyan), var(--c-purple)); box-shadow: 0 0 8px rgba(0,240,255,.5);
}
.at-item { position: relative; margin-bottom: 26px; padding-left: 22px; }
.at-year {
    position: absolute; left: -26px; top: 0; width: 58px; height: 58px;
    display: flex; align-items: center; justify-content: center;
    font-family: var(--font-tech); font-size: 12px; font-weight: 700; color: var(--c-cyan);
    background: #0a1226; border: 2px solid var(--c-cyan); border-radius: 50%;
    box-shadow: var(--glow-cyan);
}
.at-item.current .at-year { background: var(--grad-main); color: #04101c; animation: coreBreathe 2.4s infinite; }
.at-body { padding-left: 46px; }
.at-body h4 { font-size: 16.5px; margin-bottom: 3px; }
.at-body p { font-size: 13px; color: var(--c-muted); }

.about-text h3 { font-size: 26px; margin-bottom: 16px; }
.about-intro { color: var(--c-text); margin-bottom: 14px; }
.about-text p { color: var(--c-muted); font-size: 14.5px; line-height: 1.9; margin-bottom: 22px; }
.about-certs { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 28px; }
.cert {
    display: inline-flex; align-items: center; gap: 7px; padding: 8px 16px; border-radius: 10px;
    background: rgba(0,255,136,.06); border: 1px solid rgba(0,255,136,.25); color: var(--c-green); font-size: 13px;
}
.cert i { text-shadow: 0 0 10px rgba(0,255,136,.7); }
.about-cta { display: flex; gap: 12px; flex-wrap: wrap; }

/* ============================================================
   联系
   ============================================================ */
.contact { background: linear-gradient(180deg, var(--c-bg-2), var(--c-bg-3)); }
.contact-layout { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: 36px; align-items: start; }
.contact-info { display: flex; flex-direction: column; gap: 14px; }
.contact-card {
    display: flex; gap: 16px; padding: 20px; border-radius: 14px;
    background: var(--c-panel); border: 1px solid var(--c-border); transition: var(--tr);
}
.contact-card:hover { transform: translateY(-4px); border-color: rgba(0,240,255,.5); box-shadow: 0 10px 28px rgba(0,240,255,.1); }
.cc-icon {
    width: 48px; height: 48px; flex-shrink: 0; display: flex; align-items: center; justify-content: center;
    background: rgba(0,240,255,.09); border: 1px solid var(--c-border); border-radius: 12px;
    color: var(--c-cyan); font-size: 18px;
}
.contact-card h4 { font-size: 15.5px; color: var(--c-cyan); margin-bottom: 5px; }
.contact-card p { font-size: 13.5px; color: var(--c-muted); }
.cc-link { color: var(--c-cyan); font-size: 12.5px; text-decoration: none; display: inline-flex; gap: 5px; align-items: center; margin-top: 7px; }
.cc-link:hover { text-shadow: 0 0 10px rgba(0,240,255,.8); }
.sys-ok { display: flex; align-items: center; gap: 8px; color: var(--c-green) !important; }
.status-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--c-green); box-shadow: 0 0 10px var(--c-green); animation: blink 1.5s infinite; }

.contact-form-wrap { padding: 30px; }
.form-tabs { display: flex; gap: 6px; margin-bottom: 24px; border-bottom: 1px solid var(--c-border); padding-bottom: 14px; }
.form-tab-btn {
    flex: 1; padding: 10px; background: none; border: none; border-radius: 8px;
    color: var(--c-muted); font-size: 14px; transition: var(--tr);
}
.form-tab-btn:hover { color: var(--c-cyan); }
.form-tab-btn.active { background: rgba(0,240,255,.1); color: var(--c-cyan); font-weight: 700; box-shadow: inset 0 0 0 1px var(--c-border); }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-group { display: flex; flex-direction: column; gap: 7px; margin-bottom: 14px; }
.form-group label { font-size: 13px; color: var(--c-muted); }
.form-group input, .form-group select, .form-group textarea {
    padding: 12px 15px; border-radius: 9px; font-size: 14px; color: var(--c-text);
    background: rgba(0,0,0,.3); border: 1px solid var(--c-border); transition: var(--tr);
}
.form-group input::placeholder, .form-group textarea::placeholder { color: rgba(143,163,200,.45); }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    outline: none; border-color: var(--c-cyan); box-shadow: 0 0 0 3px rgba(0,240,255,.12);
}
.form-group select option { background: #0a1226; color: var(--c-text); }
.form-group textarea { resize: vertical; min-height: 90px; }
.form-group.error input, .form-group.error select, .form-group.error textarea {
    border-color: #ff4d6d; box-shadow: 0 0 0 3px rgba(255,77,109,.12);
}
.error-message { color: #ff8fa3; font-size: 12px; }

.checkbox-label { display: flex; align-items: flex-start; gap: 9px; font-size: 12.5px; color: var(--c-muted); margin: 4px 0 18px; cursor: pointer; }
.checkbox-label input { margin-top: 3px; accent-color: var(--c-cyan); }
.checkbox-label a { color: var(--c-cyan); text-decoration: none; }

.form-actions { display: flex; gap: 12px; }
.form-actions .btn-ghost { flex: 0 0 auto; }
.form-tips { display: flex; flex-wrap: wrap; gap: 8px 22px; margin-top: 18px; font-size: 12px; color: var(--c-muted); }
.form-tips i { color: var(--c-green); margin-right: 4px; }

/* ============================================================
   FAQ
   ============================================================ */
.faq { background: var(--c-bg); }
.faq-container { max-width: 880px; }
.faq-list { display: flex; flex-direction: column; gap: 12px; }
.faq-item {
    background: var(--c-panel); border: 1px solid var(--c-border); border-radius: 14px;
    overflow: hidden; transition: var(--tr);
}
.faq-item.active { border-color: rgba(0,240,255,.5); box-shadow: 0 8px 26px rgba(0,240,255,.08); }
.faq-q {
    display: flex; justify-content: space-between; align-items: center; gap: 14px;
    padding: 20px 24px; cursor: pointer; transition: var(--tr);
}
.faq-q:hover { background: rgba(0,240,255,.05); }
.faq-q h4 { font-size: 15.5px; font-weight: 600; }
.faq-q i { color: var(--c-cyan); transition: transform .3s ease; }
.faq-item.active .faq-q i { transform: rotate(180deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .4s ease; }
.faq-item.active .faq-a { max-height: 420px; }
.faq-a-inner { padding: 4px 24px 22px; border-top: 1px dashed var(--c-border); padding-top: 16px; }
.faq-a-inner p { font-size: 14px; color: var(--c-muted); margin-bottom: 10px; }
.faq-a-inner b { color: var(--c-cyan); }
.faq-a-inner ul { list-style: none; }
.faq-a-inner li { font-size: 13.5px; color: var(--c-muted); padding: 4px 0 4px 18px; position: relative; }
.faq-a-inner li::before { content: '▸'; position: absolute; left: 0; color: var(--c-cyan); }

/* ============================================================
   页脚
   ============================================================ */
.footer { background: #030509; border-top: 1px solid var(--c-border); position: relative; z-index: 2; }
.footer-top { padding: 70px 0 46px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 0.8fr 0.8fr 1.2fr; gap: 40px; }
.footer-brand { display: flex; align-items: center; gap: 12px; margin-bottom: 18px; }
.footer-desc { color: var(--c-muted); font-size: 13.5px; line-height: 1.9; margin-bottom: 22px; max-width: 340px; }
.footer-badges { display: flex; flex-wrap: wrap; gap: 10px; }
.fb-item {
    display: inline-flex; align-items: center; gap: 6px; padding: 6px 13px; border-radius: 8px;
    background: rgba(0,240,255,.05); border: 1px solid var(--c-border); color: var(--c-muted); font-size: 12px;
}
.fb-item i { color: var(--c-green); }
.footer-col h4 {
    font-size: 15px; margin-bottom: 20px; position: relative; padding-bottom: 12px; letter-spacing: 1px;
}
.footer-col h4::after {
    content: ''; position: absolute; left: 0; bottom: 0; width: 34px; height: 2px;
    background: var(--grad-main); box-shadow: var(--glow-cyan); border-radius: 2px;
}
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 11px; }
.footer-col a { color: var(--c-muted); text-decoration: none; font-size: 13.5px; transition: var(--tr); }
.footer-col a:hover { color: var(--c-cyan); padding-left: 5px; }
.footer-contact li { display: flex; gap: 10px; align-items: flex-start; color: var(--c-muted); font-size: 13.5px; }
.footer-contact i { color: var(--c-cyan); margin-top: 4px; }
.footer-social { display: flex; gap: 10px; margin-top: 20px; }
.social-link {
    width: 40px; height: 40px; border-radius: 10px; display: flex; align-items: center; justify-content: center;
    background: rgba(255,255,255,.04); border: 1px solid var(--c-border); color: var(--c-muted);
    font-size: 15px; text-decoration: none; transition: var(--tr);
}
.social-link:hover { background: var(--grad-main); color: #04101c; border-color: transparent; transform: translateY(-4px); box-shadow: var(--glow-cyan); }

.footer-bottom { border-top: 1px solid rgba(0,240,255,.09); padding: 22px 0; }
.fb-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 10px; }
.fb-inner p { font-size: 12.5px; color: rgba(143,163,200,.6); }
.fb-links a { color: var(--c-muted); text-decoration: none; }
.fb-links a:hover { color: var(--c-cyan); }

/* ============================================================
   AI 客服
   ============================================================ */
.floating-chat { position: fixed; bottom: 26px; right: 26px; z-index: 999; }
.chat-toggle {
    width: 62px; height: 62px; border-radius: 50%; border: none; position: relative;
    background: var(--grad-main); color: #04101c; font-size: 24px;
    box-shadow: 0 0 26px rgba(0,240,255,.5); transition: var(--tr);
}
.chat-toggle:hover { transform: scale(1.08) rotate(6deg); }
.chat-badge {
    position: absolute; top: -3px; right: -3px; min-width: 22px; height: 22px; padding: 0 5px;
    border-radius: 11px; background: var(--c-orange); color: #fff; font-size: 11.5px; font-weight: 700;
    display: flex; align-items: center; justify-content: center; border: 2px solid #050810;
}
.chat-window {
    position: absolute; bottom: 76px; right: 0; width: min(390px, calc(100vw - 40px));
    border-radius: 18px; overflow: hidden; background: rgba(8,13,28,.97);
    border: 1px solid var(--c-border); box-shadow: 0 24px 70px rgba(0,0,0,.6), 0 0 40px rgba(0,240,255,.08);
    transform: scale(.85) translateY(14px); transform-origin: bottom right;
    opacity: 0; visibility: hidden; transition: var(--tr);
}
.chat-window.active { transform: scale(1) translateY(0); opacity: 1; visibility: visible; }
.chat-header {
    display: flex; justify-content: space-between; align-items: center; padding: 15px 18px;
    background: linear-gradient(135deg, rgba(0,240,255,.14), rgba(168,85,247,.14));
    border-bottom: 1px solid var(--c-border);
}
.chat-title { display: flex; align-items: center; gap: 9px; font-size: 14px; font-weight: 700; }
.chat-title i { color: var(--c-cyan); }
.online-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--c-green); box-shadow: 0 0 8px var(--c-green); margin-left: 4px; animation: blink 1.6s infinite; }
.chat-close { background: none; border: none; color: var(--c-muted); font-size: 16px; transition: var(--tr); }
.chat-close:hover { color: var(--c-cyan); transform: rotate(90deg); }

.chat-messages { height: 340px; overflow-y: auto; padding: 16px; display: flex; flex-direction: column; gap: 12px; }
.chat-messages::-webkit-scrollbar { width: 4px; }
.chat-messages::-webkit-scrollbar-thumb { background: rgba(0,240,255,.3); border-radius: 2px; }
.msg { display: flex; gap: 10px; animation: fadeUp .3s ease; }
.msg.user { flex-direction: row-reverse; }
.msg-avatar {
    width: 34px; height: 34px; flex-shrink: 0; border-radius: 50%;
    display: flex; align-items: center; justify-content: center; font-size: 14px;
}
.msg.bot .msg-avatar { background: rgba(0,240,255,.14); color: var(--c-cyan); border: 1px solid var(--c-border); }
.msg.user .msg-avatar { background: rgba(168,85,247,.18); color: var(--c-purple); border: 1px solid rgba(168,85,247,.3); }
.msg-content {
    max-width: 78%; padding: 11px 15px; border-radius: 13px; font-size: 13.5px; line-height: 1.65;
}
.msg.bot .msg-content { background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.07); border-top-left-radius: 4px; }
.msg.user .msg-content { background: var(--grad-main); color: #04101c; font-weight: 600; border-top-right-radius: 4px; }

.quick-replies { display: flex; flex-wrap: wrap; gap: 8px; }
.qr {
    padding: 7px 14px; border-radius: 16px; font-size: 12.5px;
    background: rgba(0,240,255,.06); border: 1px solid var(--c-border); color: var(--c-cyan); transition: var(--tr);
}
.qr:hover { background: var(--grad-main); color: #04101c; border-color: transparent; }

.chat-input-bar { display: flex; gap: 10px; padding: 14px; border-top: 1px solid var(--c-border); }
.chat-input-bar input {
    flex: 1; padding: 11px 16px; border-radius: 20px; font-size: 13.5px;
    background: rgba(0,0,0,.35); border: 1px solid var(--c-border); color: var(--c-text);
}
.chat-input-bar input:focus { outline: none; border-color: var(--c-cyan); }
.send-btn {
    width: 42px; height: 42px; border-radius: 50%; border: none; flex-shrink: 0;
    background: var(--grad-main); color: #04101c; font-size: 15px; transition: var(--tr);
}
.send-btn:hover { transform: scale(1.1); box-shadow: var(--glow-cyan); }

/* ============================================================
   模态框
   ============================================================ */
.modal { position: fixed; inset: 0; z-index: 10001; display: flex; align-items: center; justify-content: center; padding: 20px; }
.modal[hidden] { display: none; }
.modal-backdrop { position: absolute; inset: 0; background: rgba(2,4,10,.82); backdrop-filter: blur(6px); animation: fadeIn .25s ease; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
.modal-box {
    position: relative; width: min(640px, 100%); max-height: 82vh; overflow-y: auto;
    background: #0a1122; border: 1px solid rgba(0,240,255,.35); border-radius: 18px;
    padding: 34px; box-shadow: 0 30px 80px rgba(0,0,0,.7), 0 0 50px rgba(0,240,255,.1);
    animation: modalIn .3s cubic-bezier(.2,.9,.3,1.2);
}
@keyframes modalIn { from { transform: translateY(26px) scale(.96); opacity: 0; } to { transform: translateY(0) scale(1); opacity: 1; } }
.modal-close {
    position: absolute; top: 14px; right: 14px; width: 36px; height: 36px; border-radius: 50%;
    background: rgba(255,255,255,.05); border: 1px solid var(--c-border); color: var(--c-muted); transition: var(--tr);
}
.modal-close:hover { color: var(--c-cyan); border-color: var(--c-cyan); transform: rotate(90deg); }
.modal-content h3 { font-size: 21px; margin-bottom: 16px; padding-right: 40px; color: var(--c-cyan); }
.modal-content p { color: var(--c-muted); font-size: 14.5px; line-height: 1.9; margin-bottom: 12px; }
.modal-content .modal-meta { font-family: var(--font-tech); font-size: 11px; letter-spacing: 2px; color: var(--c-purple); margin-bottom: 14px; }

/* ============================================================
   返回顶部 / 移动端导航
   ============================================================ */
.back-to-top {
    position: fixed; bottom: 26px; left: 26px; width: 48px; height: 48px; border-radius: 50%;
    border: 1px solid var(--c-border); background: rgba(8,13,28,.9); color: var(--c-cyan);
    font-size: 16px; z-index: 998; opacity: 0; visibility: hidden; transition: var(--tr); backdrop-filter: blur(8px);
}
.back-to-top.visible { opacity: 1; visibility: visible; }
.back-to-top:hover { background: var(--grad-main); color: #04101c; box-shadow: var(--glow-cyan); transform: translateY(-4px); }

.mobile-bottom-nav { display: none; position: fixed; bottom: 0; left: 0; right: 0; z-index: 997; background: rgba(4,7,14,.96); border-top: 1px solid var(--c-border); backdrop-filter: blur(12px); padding: 8px 0 max(8px, env(safe-area-inset-bottom)); }
.mbn-item { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 3px; color: var(--c-muted); text-decoration: none; font-size: 11px; }
.mbn-item i { font-size: 17px; }
.mbn-item.active { color: var(--c-cyan); text-shadow: 0 0 10px rgba(0,240,255,.7); }

/* ============================================================
   通知
   ============================================================ */
.js-notification { animation: notifIn .3s ease; }
.js-notification .notification-content { display: flex; align-items: center; gap: 14px; }
.js-notification .notification-close { background: none; border: none; color: rgba(255,255,255,.8); font-size: 17px; line-height: 1; }
.js-notification .notification-close:hover { color: #fff; }

/* ============================================================
   滚动显现
   ============================================================ */
.fade-in { opacity: 0; transform: translateY(32px); transition: opacity .7s ease, transform .7s cubic-bezier(.2,.7,.3,1); }
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1200px) {
    .hero-title { font-size: 48px; }
    .services-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 992px) {
    .nav-menu {
        display: none; position: absolute; top: 100%; left: 0; right: 0;
        background: rgba(4,7,14,.97); flex-direction: column; padding: 18px;
        border-bottom: 1px solid var(--c-border); gap: 4px;
    }
    .nav-menu.active { display: flex; }
    .nav-toggle { display: flex; }
    .contact-btn span { display: none; }
    .contact-btn { padding: 10px 13px; }

    .hero { padding-top: 120px; }
    .hero-layout { grid-template-columns: 1fr; gap: 56px; }
    .hero-visual { order: -1; }
    .holo-globe { width: min(320px, 78%); }
    .globe-data-chip { font-size: 11px; padding: 7px 11px; }
    .chip-2 { left: 0; }
    .chip-1 { right: 0; }

    .ai-layout, .about-layout, .contact-layout { grid-template-columns: 1fr; }
    .news-card.featured { flex-direction: column; grid-column: span 1; }
    .news-grid { grid-template-columns: 1fr; }
    .quick-services-grid { grid-template-columns: repeat(2, 1fr); }
    .stats-container { grid-template-columns: repeat(2, 1fr); }
    .hero-stats { margin-top: 44px; }
}

@media (max-width: 640px) {
    section { padding: 74px 0; }
    .container { padding: 0 16px; }
    .section-title { font-size: 29px; }
    .hero-title { font-size: 36px; }
    .hero-typewriter { font-size: 14px; }
    .hero-buttons .btn { flex: 1 1 auto; }
    .stats-container { grid-template-columns: repeat(2, 1fr); gap: 12px; }
    .stat-item { flex-direction: column; text-align: center; gap: 8px; padding: 16px 10px; }
    .stat-number { font-size: 24px; }
    .quick-services-grid { grid-template-columns: 1fr 1fr; padding: 14px; gap: 10px; }
    .quick-service-item { flex-direction: column; text-align: center; padding: 14px 8px; }
    .tracking-input-group { flex-direction: column; }
    .form-row { grid-template-columns: 1fr; }
    .form-actions { flex-direction: column; }
    .news-card.featured .news-image { min-height: 170px; }
    .case-card { flex: 0 0 86vw; }
    .case-results { grid-template-columns: repeat(3, 1fr); gap: 6px; }
    .partners-grid { grid-template-columns: repeat(3, 1fr); }
    .footer-grid { grid-template-columns: 1fr; }
    .map-stats { grid-template-columns: 1fr; }
    .globe-data-chip { display: none; }
    .tracking-timeline { padding-left: 28px; }
    .tl-icon { left: -28px; width: 24px; height: 24px; }
    .mobile-bottom-nav { display: flex; }
    .back-to-top { bottom: 84px; left: 16px; width: 42px; height: 42px; }
    .floating-chat { bottom: 84px; right: 16px; }
    .chat-window { bottom: 66px; }
    .top-announcement { padding: 8px 40px 8px 12px; }
    .announcement-text { font-size: 12px; }
    .result-header { flex-direction: column; align-items: flex-start; }
    .result-actions { width: 100%; }
    .action-btn { flex: 1; justify-content: center; }
    .modal-box { padding: 26px 20px; }
}