/* ============================================================
   AICC 宣传站 —— 深空霓虹科技风 site.css
   独立皮肤，不依赖 shell.css；暗色单主题。
   ============================================================ */

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

@font-face {
    font-family: "JetBrains Mono";
    src: url("JetBrainsMono-Regular.woff2") format("woff2");
    font-weight: 400;
    font-display: swap;
}
@font-face {
    font-family: "JetBrains Mono";
    src: url("JetBrainsMono-SemiBold.woff2") format("woff2");
    font-weight: 600;
    font-display: swap;
}

:root {
    --bg: #04060F;
    --bg-2: #080D1D;
    --glass: rgba(148, 190, 255, 0.05);
    --glass-2: rgba(148, 190, 255, 0.09);
    --line: rgba(120, 175, 255, 0.16);
    --line-soft: rgba(120, 175, 255, 0.09);
    --cyan: #3CE8FF;
    --cyan-dim: rgba(60, 232, 255, 0.12);
    --violet: #9D6CFF;
    --violet-dim: rgba(157, 108, 255, 0.14);
    --magenta: #F27BFF;
    --amber: #FFB84D;
    --amber-dim: rgba(255, 184, 77, 0.13);
    --green: #3DF5A6;
    --text: #EAF1FF;
    --dim: #93A3C4;
    --topbar-bg: rgba(4, 6, 15, 0.72);
    --panel-bg: rgba(8, 13, 29, 0.6);
    --b-cyan: rgba(60, 232, 255, 0.35);
    --b-amber: rgba(255, 184, 77, 0.35);
    --b-green: rgba(61, 245, 166, 0.40);
    --aurora-opacity: 0.5;
    --mono: "JetBrains Mono", "Cascadia Mono", Consolas, monospace;
    --sans: "PingFang SC", "Microsoft YaHei", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
    color-scheme: dark;
}

/* ---------- 浅色（白天） ---------- */
[data-theme="light"] {
    --bg: #F2F6FC;
    --bg-2: #E8EEF8;
    --glass: rgba(255, 255, 255, 0.62);
    --glass-2: rgba(255, 255, 255, 0.85);
    --line: rgba(15, 60, 120, 0.20);
    --line-soft: rgba(15, 60, 120, 0.10);
    --cyan: #0C8CA6;
    --cyan-dim: rgba(12, 140, 166, 0.10);
    --violet: #6D3FD6;
    --violet-dim: rgba(109, 63, 214, 0.10);
    --magenta: #C243D0;
    --amber: #B57817;
    --amber-dim: rgba(181, 120, 23, 0.12);
    --green: #12915F;
    --text: #16233A;
    --dim: #5B6C88;
    --topbar-bg: rgba(255, 255, 255, 0.78);
    --panel-bg: rgba(255, 255, 255, 0.72);
    --b-cyan: rgba(12, 140, 166, 0.40);
    --b-amber: rgba(181, 120, 23, 0.45);
    --b-green: rgba(18, 145, 95, 0.40);
    --aurora-opacity: 0.32;
    color-scheme: light;
}

html { scroll-behavior: smooth; }

body {
    font-family: var(--sans);
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    overflow-x: hidden;
    transition: background 0.3s ease, color 0.3s ease;
}
::selection { background: rgba(60, 232, 255, 0.25); }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: rgba(120, 175, 255, 0.18); border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: rgba(120, 175, 255, 0.32); }
::-webkit-scrollbar-track { background: transparent; }

/* ================= 全局背景：星幕 + 极光 ================= */
#mk-stars {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    display: block;
}
.mk-aurora {
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    overflow: hidden;
}
.mk-aurora i {
    position: absolute;
    border-radius: 50%;
    filter: blur(110px);
    opacity: var(--aurora-opacity);
}
.mk-aurora i:nth-child(1) {
    width: 46vw; height: 46vw;
    left: -12vw; top: -14vh;
    background: radial-gradient(circle, rgba(60, 232, 255, 0.20), transparent 65%);
    animation: mk-aurora-drift 26s ease-in-out infinite alternate;
}
.mk-aurora i:nth-child(2) {
    width: 40vw; height: 40vw;
    right: -10vw; top: 22vh;
    background: radial-gradient(circle, rgba(157, 108, 255, 0.22), transparent 65%);
    animation: mk-aurora-drift 32s ease-in-out infinite alternate-reverse;
}
.mk-aurora i:nth-child(3) {
    width: 34vw; height: 34vw;
    left: 28vw; bottom: -18vh;
    background: radial-gradient(circle, rgba(242, 123, 255, 0.12), transparent 65%);
    animation: mk-aurora-drift 38s ease-in-out infinite alternate;
}
@keyframes mk-aurora-drift {
    from { transform: translate(0, 0) scale(1); }
    to { transform: translate(6vw, 4vh) scale(1.15); }
}

/* ================= 顶栏 ================= */
.cc-topbar {
    height: 60px;
    padding: 0 26px;
    display: flex;
    align-items: center;
    gap: 16px;
    position: sticky;
    top: 0;
    z-index: 50;
    background: var(--topbar-bg);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--line-soft);
}
.cc-brand { display: flex; align-items: center; gap: 12px; text-decoration: none; color: var(--text); }
.cc-brand-mark {
    width: 34px; height: 34px;
    display: grid;
    place-items: center;
    border-radius: 9px;
    color: var(--cyan);
    font-size: 1.05rem;
    background: linear-gradient(135deg, var(--cyan-dim), var(--violet-dim));
    border: 1px solid var(--line);
    box-shadow: 0 0 18px rgba(60, 232, 255, 0.25), inset 0 0 12px rgba(60, 232, 255, 0.08);
}
.cc-brand-name { font-size: 1rem; font-weight: 700; letter-spacing: 0.04em; }
.cc-brand-sub {
    color: var(--dim);
    font-size: 0.62rem;
    font-family: var(--mono);
    letter-spacing: 0.22em;
    margin-top: 2px;
}
.cc-topbar-spacer { flex: 1; }

.cc-theme-toggle {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    background: var(--glass);
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: 6px 14px;
    cursor: pointer;
    color: var(--dim);
    font-size: 0.74rem;
    font-family: var(--mono);
    white-space: nowrap;
    transition: all 0.2s;
}
.cc-theme-toggle:hover { color: var(--cyan); border-color: var(--cyan); }

/* ================= 按钮 ================= */
.cc-btn {
    font: inherit;
    font-size: 0.86rem;
    color: var(--text);
    background: var(--glass);
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 9px 20px;
    cursor: pointer;
    transition: all 0.2s;
    backdrop-filter: blur(8px);
}
.cc-btn:hover {
    border-color: var(--cyan);
    box-shadow: 0 0 20px rgba(60, 232, 255, 0.25);
    transform: translateY(-1px);
}
.cc-btn:active { transform: translateY(1px); }
.cc-btn.primary {
    background: linear-gradient(135deg, var(--cyan), var(--violet));
    border: none;
    color: #04060F;
    font-weight: 700;
    box-shadow: 0 4px 24px rgba(60, 232, 255, 0.35);
}
.cc-btn.primary:hover {
    box-shadow: 0 6px 32px rgba(157, 108, 255, 0.5);
    filter: brightness(1.1);
}

.cc-eyebrow {
    font-family: var(--mono);
    font-size: 0.66rem;
    letter-spacing: 0.28em;
    text-transform: uppercase;
    color: var(--cyan);
    margin-bottom: 10px;
}

/* ================= 玻璃卡片 ================= */
.cc-card {
    background: var(--glass);
    border: 1px solid var(--line-soft);
    border-radius: 14px;
    padding: 20px 22px;
    position: relative;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: transform 0.25s, border-color 0.25s, box-shadow 0.25s;
}
.cc-card:hover {
    transform: translateY(-3px);
    border-color: var(--line);
    box-shadow: 0 10px 40px rgba(60, 232, 255, 0.10), 0 2px 12px rgba(0, 0, 0, 0.4);
}

/* ================= reveal 动效 ================= */
.cc-reveal {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity 0.6s ease, transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}
.cc-reveal.in { opacity: 1; transform: none; }

@keyframes cc-pulse-dot {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

/* ================= 顶栏导航 ================= */
.mk-nav { display: flex; align-items: center; gap: 2px; margin-left: 20px; }
.mk-nav a {
    color: var(--dim);
    text-decoration: none;
    font-size: 0.8rem;
    padding: 6px 12px;
    border-radius: 999px;
    transition: all 0.18s;
    white-space: nowrap;
}
.mk-nav a:hover { color: var(--text); background: var(--glass-2); }
.mk-nav a.active {
    color: var(--cyan);
    background: var(--cyan-dim);
    box-shadow: inset 0 0 12px rgba(60, 232, 255, 0.08);
}

/* ================= Hero ================= */
.mk-hero {
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid var(--line-soft);
}
#mk-topology { width: 100%; height: 88vh; min-height: 560px; display: block; }
.mk-hero-overlay {
    position: absolute;
    left: 56px; top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
    max-width: 780px;
}
.mk-hero-overlay .cc-btn { pointer-events: auto; }
.mk-hero-eyebrow {
    font-family: var(--mono);
    font-size: 0.76rem;
    letter-spacing: 0.36em;
    color: var(--cyan);
    text-transform: uppercase;
    margin-bottom: 18px;
    text-shadow: 0 0 16px rgba(60, 232, 255, 0.6);
}
.mk-hero-title {
    font-size: clamp(2.2rem, 5.4vw, 4rem);
    font-weight: 800;
    letter-spacing: 0.02em;
    line-height: 1.18;
}
.mk-hero-title em {
    font-style: normal;
    background: linear-gradient(100deg, var(--cyan) 10%, var(--violet) 55%, var(--magenta) 95%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    background-size: 220% 100%;
    animation: mk-gradient-slide 5s ease-in-out infinite alternate;
}
@keyframes mk-gradient-slide {
    from { background-position: 0% 0; }
    to { background-position: 100% 0; }
}
.mk-hero-sub {
    margin-top: 20px;
    color: var(--dim);
    font-size: clamp(0.95rem, 1.4vw, 1.08rem);
    max-width: 580px;
    line-height: 1.8;
}
.mk-hero-strip {
    margin-top: 26px;
    font-family: var(--mono);
    font-size: 0.78rem;
    letter-spacing: 0.06em;
    color: var(--cyan);
    display: flex;
    flex-wrap: wrap;
    gap: 4px 10px;
}
.mk-hero-strip span { text-shadow: 0 0 10px rgba(60, 232, 255, 0.4); }
.mk-hero-strip .sep { color: var(--dim); text-shadow: none; }
.mk-hero-cta { margin-top: 34px; display: flex; gap: 14px; }

/* ================= 通用区块 ================= */
.mk-section { max-width: 1120px; margin: 0 auto; padding: 88px 30px 8px; position: relative; }
.mk-section.wide { max-width: 1240px; }
.mk-section-head { margin-bottom: 40px; }
.mk-section-title {
    font-size: clamp(1.4rem, 2.6vw, 1.85rem);
    font-weight: 800;
    letter-spacing: 0.02em;
}
.mk-section-title::after {
    content: "";
    display: block;
    width: 56px; height: 3px;
    margin-top: 14px;
    border-radius: 2px;
    background: linear-gradient(90deg, var(--cyan), var(--violet));
    box-shadow: 0 0 12px rgba(60, 232, 255, 0.5);
}
.mk-section-sub { margin-top: 14px; color: var(--dim); font-size: 0.94rem; }
.mk-lead { color: var(--text); font-size: 1rem; line-height: 1.9; max-width: 880px; }

/* ================= 统计卡 ================= */
.mk-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 42px; }
.mk-stat { padding: 28px 24px; }
.mk-stat-big {
    font-size: 2.1rem;
    font-weight: 800;
    background: linear-gradient(120deg, var(--cyan), var(--violet));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.mk-stat-cap { margin-top: 10px; font-weight: 700; font-size: 1.02rem; }
.mk-stat-desc { margin-top: 8px; color: var(--dim); font-size: 0.83rem; line-height: 1.65; }
.mk-scenarios-line {
    margin-top: 34px;
    padding: 16px 22px;
    border: 1px solid var(--line-soft);
    border-radius: 12px;
    background: var(--glass);
    backdrop-filter: blur(10px);
    font-size: 0.93rem;
    font-weight: 600;
}
.mk-scenarios-line b { color: var(--cyan); margin-right: 6px; }

/* ================= 卡片网格 ================= */
.mk-cards3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.mk-cards2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.mk-cards4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.mk-feature {
    padding: 24px 24px;
    overflow: hidden;
}
.mk-feature::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--cyan), transparent 70%);
    opacity: 0.7;
}
.mk-feature h3 { font-size: 1.04rem; font-weight: 700; margin-bottom: 14px; }
.mk-feature ul { list-style: none; }
.mk-feature li {
    color: var(--dim);
    font-size: 0.86rem;
    line-height: 1.65;
    padding: 5px 0 5px 18px;
    position: relative;
}
.mk-feature li::before {
    content: "▸";
    position: absolute;
    left: 0;
    color: var(--cyan);
    text-shadow: 0 0 8px rgba(60, 232, 255, 0.6);
}

/* ================= 步骤流 ================= */
.mk-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 42px; }
.mk-step { padding: 22px 20px 24px; position: relative; }
.mk-step-name { font-weight: 700; font-size: 1rem; margin-bottom: 12px; }
.mk-step-name .idx {
    font-family: var(--mono);
    font-size: 0.78rem;
    margin-right: 9px;
    background: linear-gradient(120deg, var(--cyan), var(--violet));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.mk-step-desc { color: var(--dim); font-size: 0.83rem; line-height: 1.75; white-space: pre-line; }
.mk-step::after {
    content: "→";
    position: absolute;
    right: -14px; top: 42%;
    color: var(--cyan);
    font-weight: 700;
    text-shadow: 0 0 10px rgba(60, 232, 255, 0.7);
    z-index: 2;
}
.mk-step:last-child::after { display: none; }

@keyframes mk-step-sweep {
    0%, 18% {
        border-color: rgba(60, 232, 255, 0.55);
        box-shadow: 0 0 30px rgba(60, 232, 255, 0.18), inset 0 0 24px rgba(60, 232, 255, 0.06);
        transform: translateY(-4px);
    }
    30%, 100% { box-shadow: none; transform: none; border-color: var(--line-soft); }
}
.mk-steps .mk-step { animation: mk-step-sweep 8s ease-in-out infinite; }
.mk-steps .mk-step:nth-child(1) { animation-delay: 0s; }
.mk-steps .mk-step:nth-child(2) { animation-delay: 2s; }
.mk-steps .mk-step:nth-child(3) { animation-delay: 4s; }
.mk-steps .mk-step:nth-child(4) { animation-delay: 6s; }

/* ================= 要点列表 ================= */
.mk-bullets { list-style: none; }
.mk-bullets li { padding: 10px 0 10px 22px; position: relative; font-size: 0.93rem; line-height: 1.75; color: var(--dim); }
.mk-bullets li::before {
    content: "▸";
    position: absolute;
    left: 0;
    color: var(--cyan);
    font-weight: 700;
    text-shadow: 0 0 8px rgba(60, 232, 255, 0.6);
}
.mk-bullets li b { color: var(--text); margin-right: 8px; }

/* ================= 左右分栏 ================= */
.mk-split { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; align-items: start; }

/* ================= 霓虹展示板 ================= */
.mk-darkpanel {
    background: linear-gradient(160deg, rgba(157, 108, 255, 0.09), rgba(60, 232, 255, 0.05) 55%, rgba(4, 6, 15, 0.2));
    border: 1px solid var(--line);
    border-radius: 16px;
    padding: 28px 30px;
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(12px);
}
.mk-darkpanel::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--violet), var(--cyan));
}
.mk-darkpanel-title {
    font-family: var(--mono);
    font-size: 0.72rem;
    letter-spacing: 0.24em;
    color: var(--cyan);
    text-transform: uppercase;
    margin-bottom: 20px;
    text-shadow: 0 0 12px rgba(60, 232, 255, 0.5);
}
.mk-darkpanel ul { list-style: none; }
.mk-darkpanel li { color: var(--text); font-size: 0.9rem; padding: 8px 0; line-height: 1.65; }
.mk-darkpanel li::before { content: "◆"; color: var(--violet); font-size: 0.6rem; margin-right: 12px; vertical-align: 2px; }
.mk-darkpanel li.quote { color: var(--cyan); }
.mk-darkpanel li.quote::before { content: "“"; color: var(--violet); font-size: 0.9rem; margin-right: 8px; vertical-align: 0; }

/* ================= 知识库流程 ================= */
.mk-flow-v { display: flex; flex-direction: column; margin-top: 6px; }
.mk-flow-v .node {
    background: var(--glass-2);
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 13px 16px;
    text-align: center;
    font-weight: 600;
    font-size: 0.89rem;
}
.mk-flow-v .arrow { text-align: center; color: var(--cyan); font-weight: 700; padding: 4px 0; position: relative; }
.mk-flow-v .arrow::after {
    content: "";
    position: absolute;
    left: 50%; top: 0;
    width: 5px; height: 5px;
    margin-left: -2.5px;
    border-radius: 50%;
    background: var(--cyan);
    box-shadow: 0 0 10px var(--cyan);
    animation: mk-drop 1.8s ease-in infinite;
}
.mk-flow-v .arrow:nth-of-type(4)::after { animation-delay: 0.6s; }
.mk-flow-v .arrow:nth-of-type(6)::after { animation-delay: 1.2s; }
@keyframes mk-drop {
    0% { transform: translateY(-3px); opacity: 0; }
    30% { opacity: 1; }
    100% { transform: translateY(20px); opacity: 0; }
}
.mk-flow-note { margin-top: 20px; color: var(--dim); font-size: 0.85rem; line-height: 1.7; }

/* ================= 横向流程 ================= */
.mk-flow-h { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 40px; }
.mk-flow-h .stage {
    border-radius: 14px;
    padding: 24px 18px;
    text-align: center;
    position: relative;
    background: var(--glass);
    border: 1px solid var(--line-soft);
    backdrop-filter: blur(10px);
}
.mk-flow-h .stage.hot {
    border-color: rgba(60, 232, 255, 0.4);
    background: var(--cyan-dim);
}
.mk-flow-h .stage-t { font-weight: 700; font-size: 1rem; }
.mk-flow-h .stage.hot .stage-t { color: var(--cyan); }
.mk-flow-h .stage-d { margin-top: 10px; color: var(--dim); font-size: 0.81rem; line-height: 1.65; white-space: pre-line; }
.mk-flow-h .stage::after {
    content: "→";
    position: absolute;
    right: -14px; top: 50%;
    transform: translateY(-50%);
    color: var(--cyan);
    font-weight: 700;
    text-shadow: 0 0 10px rgba(60, 232, 255, 0.7);
    z-index: 2;
}
.mk-flow-h .stage:last-child::after { display: none; }

@keyframes mk-stage-sweep {
    0%, 18% {
        border-color: rgba(157, 108, 255, 0.6);
        box-shadow: 0 0 30px rgba(157, 108, 255, 0.22), inset 0 0 24px rgba(157, 108, 255, 0.08);
        transform: translateY(-4px);
    }
    30%, 100% { box-shadow: none; transform: none; }
}
.mk-flow-h .stage { animation: mk-stage-sweep 8s ease-in-out infinite; }
.mk-flow-h .stage:nth-child(1) { animation-delay: 0s; }
.mk-flow-h .stage:nth-child(2) { animation-delay: 2s; }
.mk-flow-h .stage:nth-child(3) { animation-delay: 4s; }
.mk-flow-h .stage:nth-child(4) { animation-delay: 6s; }

/* ================= ACD 策略表 ================= */
.mk-strategy { display: flex; gap: 14px; padding: 14px 4px; border-bottom: 1px solid var(--line-soft); align-items: baseline; }
.mk-strategy:last-child { border-bottom: none; }
.mk-strategy::before {
    content: "";
    flex: none;
    width: 4px; height: 20px;
    border-radius: 2px;
    background: linear-gradient(180deg, var(--cyan), var(--violet));
    box-shadow: 0 0 8px rgba(60, 232, 255, 0.5);
    align-self: center;
}
.mk-strategy .st-name { flex: none; width: 108px; font-weight: 700; font-size: 0.92rem; }
.mk-strategy .st-desc { color: var(--dim); font-size: 0.85rem; line-height: 1.6; }

/* ================= 坐席时间线 ================= */
.mk-timeline { position: relative; padding-left: 20px; }
.mk-timeline::before {
    content: "";
    position: absolute;
    left: 4px; top: 8px; bottom: 8px;
    width: 1px;
    background: linear-gradient(180deg, var(--cyan), var(--violet));
    opacity: 0.5;
}
.mk-tl-item { position: relative; padding: 9px 0 9px 14px; }
.mk-tl-item::before {
    content: "";
    position: absolute;
    left: -20px; top: 16px;
    width: 9px; height: 9px;
    border-radius: 50%;
    background: var(--cyan);
    box-shadow: 0 0 10px var(--cyan);
}
.mk-tl-time { font-family: var(--mono); font-size: 0.78rem; color: var(--cyan); margin-bottom: 3px; }
.mk-tl-text { font-size: 0.89rem; color: var(--text); line-height: 1.55; }

/* ================= 质检三模式 ================= */
.mk-mode { padding: 26px 24px; overflow: hidden; }
.mk-mode::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--magenta), var(--violet), transparent 80%);
}
.mk-mode h3 { font-size: 1.14rem; font-weight: 800; margin-bottom: 12px; }
.mk-mode .m-desc { font-size: 0.89rem; line-height: 1.65; }
.mk-mode .m-use { margin-top: 14px; color: var(--dim); font-size: 0.8rem; }
.mk-mode .m-use b { color: var(--cyan); font-weight: 600; }

/* ================= AI 接待实况 ================= */
.mk-live {
    margin-top: 44px;
    border: 1px solid var(--line);
    border-radius: 16px;
    background: var(--panel-bg);
    backdrop-filter: blur(14px);
    overflow: hidden;
    box-shadow: 0 0 60px rgba(60, 232, 255, 0.06), 0 20px 60px rgba(0, 0, 0, 0.4);
}
.mk-live-head {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 15px 24px;
    border-bottom: 1px solid var(--line-soft);
    background: var(--glass);
}
.mk-live-title { font-weight: 700; font-size: 0.96rem; }
.mk-live-title .en {
    display: block;
    font-family: var(--mono);
    font-size: 0.62rem;
    letter-spacing: 0.26em;
    color: var(--dim);
    text-transform: uppercase;
    margin-top: 3px;
}
.mk-live-status {
    margin-left: auto;
    font-family: var(--mono);
    font-size: 0.74rem;
    padding: 5px 14px;
    border-radius: 999px;
    border: 1px solid var(--b-cyan);
    color: var(--cyan);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    white-space: nowrap;
    text-shadow: 0 0 8px rgba(60, 232, 255, 0.5);
}
.mk-live-status::before {
    content: "";
    width: 7px; height: 7px;
    border-radius: 50%;
    background: var(--green);
    box-shadow: 0 0 10px var(--green);
    animation: cc-pulse-dot 1.6s ease-in-out infinite;
}
.mk-live-body { display: grid; grid-template-columns: 1.1fr 1fr; min-height: 300px; }
.mk-live-wave { border-right: 1px solid var(--line-soft); position: relative; }
#live-wave { width: 100%; height: 100%; min-height: 300px; display: block; }
.mk-wave-label {
    position: absolute;
    left: 16px; top: 12px;
    font-family: var(--mono);
    font-size: 0.64rem;
    letter-spacing: 0.22em;
    color: var(--dim);
}
.mk-wave-speaker {
    position: absolute;
    right: 16px; top: 12px;
    font-family: var(--mono);
    font-size: 0.7rem;
    color: var(--cyan);
    transition: color 0.3s;
}
.mk-wave-speaker.ai { color: var(--amber); }

/* 聊天气泡 */
.mk-chat { padding: 20px 22px; display: flex; flex-direction: column; gap: 10px; overflow: hidden; }
.mk-msg {
    max-width: 86%;
    padding: 10px 15px;
    border-radius: 12px;
    font-size: 0.86rem;
    line-height: 1.65;
    opacity: 0;
    transform: translateY(8px);
    transition: opacity 0.35s ease, transform 0.35s ease;
}
.mk-msg.show { opacity: 1; transform: none; }
.mk-msg.customer {
    align-self: flex-start;
    background: var(--glass-2);
    border: 1px solid var(--line);
    border-bottom-left-radius: 3px;
}
.mk-msg.ai {
    align-self: flex-end;
    background: var(--amber-dim);
    border: 1px solid var(--b-amber);
    border-bottom-right-radius: 3px;
}
.mk-msg .who {
    display: block;
    font-family: var(--mono);
    font-size: 0.6rem;
    letter-spacing: 0.2em;
    color: var(--dim);
    margin-bottom: 4px;
}
.mk-msg.ai .who { color: var(--amber); }
.mk-msg.system {
    align-self: center;
    background: none;
    border: 1px dashed var(--b-cyan);
    color: var(--cyan);
    font-family: var(--mono);
    font-size: 0.72rem;
    padding: 5px 15px;
    border-radius: 999px;
}

/* AI 轨道环 */
.mk-orb { flex: none; }
.mk-orb .ring { transform-origin: 50% 50%; animation: mk-orb-spin 9s linear infinite; }
.mk-orb .ring.r2 { animation-duration: 14s; animation-direction: reverse; }
@keyframes mk-orb-spin { to { transform: rotate(360deg); } }

/* ================= 智能外呼实况 ================= */
.mk-dialer {
    margin-bottom: 44px;
    border: 1px solid var(--line);
    border-radius: 16px;
    background: var(--panel-bg);
    backdrop-filter: blur(14px);
    overflow: hidden;
    box-shadow: 0 0 60px rgba(157, 108, 255, 0.06), 0 20px 60px rgba(0, 0, 0, 0.4);
}
.mk-dialer-head {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 15px 24px;
    border-bottom: 1px solid var(--line-soft);
    background: var(--glass);
    flex-wrap: wrap;
}
.mk-dialer-progress {
    flex: 1;
    min-width: 180px;
    height: 8px;
    border-radius: 999px;
    background: rgba(4, 6, 15, 0.7);
    border: 1px solid var(--line-soft);
    overflow: hidden;
}
.mk-dialer-progress i {
    display: block;
    height: 100%;
    width: 0%;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--cyan), var(--violet), var(--magenta));
    box-shadow: 0 0 12px rgba(60, 232, 255, 0.6);
    transition: width 0.6s ease;
}
.mk-dialer-count { font-family: var(--mono); font-size: 0.76rem; color: var(--dim); white-space: nowrap; }
.mk-dialer-count b { color: var(--cyan); }
.mk-dialer-rows { padding: 12px 24px 18px; }
.mk-dial-row {
    display: grid;
    grid-template-columns: 130px 1fr auto auto;
    gap: 14px;
    align-items: center;
    padding: 10px 4px;
    border-bottom: 1px solid var(--line-soft);
    font-size: 0.83rem;
}
.mk-dial-row:last-child { border-bottom: none; }
.mk-dial-num { font-family: var(--mono); font-size: 0.8rem; }
.mk-dial-task { color: var(--dim); font-size: 0.79rem; }
.mk-dial-dur { font-family: var(--mono); font-size: 0.72rem; color: var(--dim); min-width: 48px; text-align: right; }
.mk-dial-status {
    font-family: var(--mono);
    font-size: 0.68rem;
    padding: 4px 12px;
    border-radius: 999px;
    border: 1px solid var(--line);
    color: var(--dim);
    min-width: 118px;
    text-align: center;
    transition: all 0.3s;
}
.mk-dial-status.calling {
    color: var(--cyan);
    border-color: var(--b-cyan);
    box-shadow: 0 0 12px var(--cyan-dim);
    animation: cc-pulse-dot 1.2s ease-in-out infinite;
}
.mk-dial-status.ai {
    color: var(--amber);
    border-color: var(--b-amber);
    box-shadow: 0 0 12px var(--amber-dim);
}
.mk-dial-status.done {
    color: var(--green);
    border-color: var(--b-green);
    box-shadow: 0 0 12px rgba(61, 245, 166, 0.15);
}
[data-theme="light"] .mk-dial-status.done { box-shadow: 0 0 12px rgba(18, 145, 95, 0.15); }

/* ================= 智能外呼：双模式 ================= */
.mk-obmode { padding: 26px 26px 22px; overflow: hidden; }
.mk-obmode::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--cyan), transparent 70%);
}
.mk-obmode.ai::before { background: linear-gradient(90deg, var(--magenta), var(--violet), transparent 80%); }
.mk-obmode-tag {
    display: inline-block;
    font-family: var(--mono);
    font-size: 0.64rem;
    letter-spacing: 0.22em;
    color: var(--cyan);
    border: 1px solid var(--b-cyan);
    border-radius: 999px;
    padding: 3px 11px;
    margin-bottom: 14px;
}
.mk-obmode.ai .mk-obmode-tag { color: var(--magenta); border-color: color-mix(in srgb, var(--magenta) 45%, transparent); }
.mk-obmode h3 { font-size: 1.12rem; font-weight: 800; margin-bottom: 14px; }
.mk-obmode-en {
    font-family: var(--mono);
    font-size: 0.64rem;
    font-weight: 400;
    letter-spacing: 0.16em;
    color: var(--dim);
    margin-left: 10px;
    text-transform: uppercase;
}
.mk-obmode ul { list-style: none; }
.mk-obmode li {
    color: var(--dim);
    font-size: 0.87rem;
    line-height: 1.65;
    padding: 5px 0 5px 18px;
    position: relative;
}
.mk-obmode li::before {
    content: "▸";
    position: absolute;
    left: 0;
    color: var(--cyan);
    text-shadow: 0 0 8px rgba(60, 232, 255, 0.6);
}
.mk-obmode.ai li::before { color: var(--magenta); text-shadow: 0 0 8px rgba(242, 123, 255, 0.5); }
.mk-obmode-fit {
    margin-top: 16px;
    padding-top: 14px;
    border-top: 1px dashed var(--line);
    font-size: 0.8rem;
    color: var(--dim);
}
.mk-obmode-fit::first-letter { color: var(--text); }

/* ================= 智能外呼：意图触发带 ================= */
.mk-intent-strip {
    display: flex;
    align-items: center;
    gap: 14px;
    flex-wrap: wrap;
    padding: 18px 22px;
    margin-bottom: 26px;
    border: 1px solid var(--line-soft);
    border-radius: 14px;
    background: var(--glass);
    backdrop-filter: blur(10px);
}
.mk-intent-label {
    font-size: 0.8rem;
    color: var(--dim);
    line-height: 1.5;
    flex: none;
}
.mk-intent-label b {
    background: linear-gradient(120deg, var(--cyan), var(--magenta));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.mk-intent-item {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    padding: 8px 15px;
    border-radius: 999px;
    border: 1px solid var(--line);
    background: var(--glass-2);
    font-size: 0.8rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}
.mk-intent-item:hover {
    border-color: var(--b-cyan);
    box-shadow: 0 0 16px var(--cyan-dim);
}
.mk-intent-when { color: var(--text); }
.mk-intent-arrow { color: var(--magenta); font-weight: 700; }
.mk-intent-do { color: var(--cyan); font-weight: 600; }

/* ================= 智能外呼：实况 + 表单并排 ================= */
.mk-ob-live {
    display: grid;
    grid-template-columns: 1.35fr 1fr;
    gap: 18px;
    align-items: stretch;
}

/* 随访表单自动采集 */
.mk-formpanel {
    border: 1px solid var(--line);
    border-radius: 16px;
    background: var(--panel-bg);
    backdrop-filter: blur(14px);
    overflow: hidden;
    box-shadow: 0 0 60px rgba(242, 123, 255, 0.05), 0 20px 60px rgba(0, 0, 0, 0.4);
    display: flex;
    flex-direction: column;
}
.mk-formpanel-head {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 15px 24px;
    border-bottom: 1px solid var(--line-soft);
    background: var(--glass);
}
.mk-formpanel-head .mk-live-status { margin-left: auto; }
.mk-formpanel-body { padding: 14px 24px 10px; flex: 1; }
.mk-field {
    display: grid;
    grid-template-columns: 96px 1fr 22px;
    gap: 12px;
    align-items: baseline;
    padding: 10px 0;
    border-bottom: 1px solid var(--line-soft);
}
.mk-field:last-child { border-bottom: none; }
.mk-field-label { color: var(--dim); font-size: 0.82rem; }
.mk-field-value {
    font-size: 0.88rem;
    color: var(--text);
    font-weight: 600;
    min-height: 1.4em;
    word-break: break-all;
}
.mk-field-value .caret {
    display: inline-block;
    width: 2px; height: 1em;
    margin-left: 2px;
    vertical-align: -2px;
    background: var(--magenta);
    animation: cc-pulse-dot 0.9s step-end infinite;
}
.mk-field-check {
    color: var(--green);
    font-size: 0.9rem;
    opacity: 0;
    transform: scale(0.6);
    transition: all 0.3s;
    text-shadow: 0 0 10px var(--green);
}
.mk-field.done .mk-field-check { opacity: 1; transform: none; }
.mk-field.active .mk-field-label { color: var(--magenta); }
.mk-formpanel-foot {
    padding: 12px 24px;
    border-top: 1px solid var(--line-soft);
    color: var(--dim);
    font-size: 0.76rem;
    font-family: var(--mono);
    letter-spacing: 0.04em;
}

/* ================= 结尾 CTA ================= */
.mk-final {
    margin-top: 96px;
    padding: 110px 30px;
    text-align: center;
    position: relative;
    overflow: hidden;
    border-top: 1px solid var(--line-soft);
    background:
        radial-gradient(ellipse 60% 55% at 50% 110%, rgba(157, 108, 255, 0.16), transparent 70%),
        radial-gradient(ellipse 50% 45% at 50% -10%, rgba(60, 232, 255, 0.12), transparent 70%);
}
.mk-final::before {
    content: "";
    position: absolute;
    top: 0; left: 20%; right: 20%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--cyan), var(--violet), transparent);
}
.mk-final-title { font-size: clamp(1.9rem, 4vw, 2.9rem); font-weight: 800; letter-spacing: 0.02em; }
.mk-final-title em {
    font-style: normal;
    background: linear-gradient(100deg, var(--cyan), var(--violet), var(--magenta));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    background-size: 220% 100%;
    animation: mk-gradient-slide 5s ease-in-out infinite alternate;
}
.mk-final-sub { margin: 24px auto 0; color: var(--dim); font-size: 1.02rem; line-height: 1.85; max-width: 640px; }
.mk-final-cta { margin-top: 38px; display: flex; gap: 14px; justify-content: center; }

.mk-footer {
    border-top: 1px solid var(--line-soft);
    padding: 22px 40px;
    color: var(--dim);
    font-size: 0.73rem;
    font-family: var(--mono);
    letter-spacing: 0.06em;
    display: flex;
    justify-content: space-between;
    gap: 14px;
    flex-wrap: wrap;
}

/* ================= reduced motion ================= */
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .cc-reveal { opacity: 1; transform: none; transition: none; }
    .mk-aurora i, .mk-hero-title em, .mk-final-title em,
    .mk-steps .mk-step, .mk-flow-h .stage, .mk-flow-v .arrow::after,
    .mk-orb .ring, .mk-live-status::before, .mk-dial-status.calling { animation: none; }
    .mk-msg { opacity: 1; transform: none; transition: none; }
}

/* ================= 响应式 ================= */
@media (max-width: 980px) {
    .mk-stats, .mk-cards4, .mk-steps, .mk-flow-h { grid-template-columns: repeat(2, 1fr); }
    .mk-cards3 { grid-template-columns: repeat(2, 1fr); }
    .mk-step::after, .mk-flow-h .stage::after { display: none; }
}
@media (max-width: 860px) {
    .mk-nav { display: none; }
    .mk-hero-overlay { left: 24px; right: 24px; }
    #mk-topology { height: 92vh; }
    .mk-section { padding: 60px 18px 4px; }
    .mk-live-body { grid-template-columns: 1fr; }
    .mk-live-wave { border-right: none; border-bottom: 1px solid var(--line-soft); }
    .mk-dial-row { grid-template-columns: 110px 1fr auto; }
    .mk-dial-dur { display: none; }
    .mk-ob-live { grid-template-columns: 1fr; }
    .mk-intent-strip { gap: 9px; }
}
@media (max-width: 640px) {
    .mk-stats, .mk-cards3, .mk-cards2, .mk-cards4, .mk-steps, .mk-flow-h, .mk-split { grid-template-columns: 1fr; }
    .mk-hero-cta, .mk-final-cta { flex-direction: column; align-items: stretch; }
}

/* ================= 预约演示弹窗 ================= */
.mk-demo-modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}
.mk-demo-modal[hidden] { display: none; }
.mk-demo-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(2, 4, 12, 0.62);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
}
.mk-demo-card {
    position: relative;
    width: 100%;
    max-width: 440px;
    max-height: 90vh;
    overflow-y: auto;
    background: var(--bg-2);
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 30px 28px 26px;
    box-shadow: 0 24px 64px rgba(0, 0, 0, 0.45), 0 0 0 1px var(--cyan-dim);
    animation: mk-demo-in 0.22s ease;
}
@keyframes mk-demo-in {
    from { opacity: 0; transform: translateY(14px) scale(0.98); }
    to   { opacity: 1; transform: none; }
}
.mk-demo-close {
    position: absolute;
    top: 12px;
    right: 14px;
    width: 32px;
    height: 32px;
    border: 1px solid var(--line-soft);
    border-radius: 8px;
    background: transparent;
    color: var(--dim);
    font-size: 1.15rem;
    line-height: 1;
    cursor: pointer;
    transition: color 0.15s, border-color 0.15s;
}
.mk-demo-close:hover { color: var(--text); border-color: var(--line); }
.mk-demo-title { font-size: 1.25rem; letter-spacing: 0.02em; }
.mk-demo-sub { margin-top: 8px; font-size: 0.85rem; color: var(--dim); line-height: 1.6; }
.mk-demo-field {
    display: block;
    margin-top: 14px;
    font-size: 0.82rem;
    color: var(--dim);
}
.mk-demo-field > span { display: block; margin-bottom: 5px; }
.mk-demo-field i { color: var(--magenta); font-style: normal; }
.mk-demo-field input,
.mk-demo-field textarea {
    width: 100%;
    padding: 9px 12px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--glass);
    color: var(--text);
    font-family: var(--sans);
    font-size: 0.9rem;
    outline: none;
    transition: border-color 0.15s, box-shadow 0.15s;
}
.mk-demo-field textarea { resize: vertical; min-height: 64px; }
.mk-demo-field input:focus,
.mk-demo-field textarea:focus {
    border-color: var(--b-cyan);
    box-shadow: 0 0 0 3px var(--cyan-dim);
}
.mk-demo-field input::placeholder,
.mk-demo-field textarea::placeholder { color: var(--dim); opacity: 0.7; }
/* 蜜罐字段：视觉与可访问性双重隐藏 */
.mk-demo-hp {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    overflow: hidden;
    opacity: 0;
}
.mk-demo-status {
    min-height: 20px;
    margin-top: 12px;
    font-size: 0.82rem;
    line-height: 1.5;
}
.mk-demo-status.err { color: #F2708A; }
.mk-demo-status.ok { color: var(--green); }
.mk-demo-submit {
    width: 100%;
    margin-top: 6px;
    justify-content: center;
    cursor: pointer;
}
.mk-demo-submit[disabled] { opacity: 0.55; cursor: not-allowed; }
body.mk-demo-lock { overflow: hidden; }

@media (max-width: 640px) {
    .mk-demo-card { padding: 24px 18px 20px; }
}