/* ================================================================
 * base.css — 全站共享样式（index / home / 各子页共用）
 * 变量、reset、主内容区、section 排版、卡片、粒子层、子页面规则
 * ================================================================ */

:root {
    --color-bg:
        radial-gradient(120% 90% at 22% 24%, rgba(46, 84, 200, 0.42), transparent 52%),
        radial-gradient(100% 80% at 82% 18%, rgba(130, 64, 190, 0.22), transparent 55%),
        radial-gradient(130% 110% at 76% 84%, rgba(18, 118, 168, 0.24), transparent 56%),
        radial-gradient(90% 70% at 28% 82%, rgba(96, 46, 160, 0.16), transparent 52%),
        radial-gradient(circle at 50% 42%, #04194e 0%, #071331 20%, #050a1c 45%, #000 100%);
    --color-white: #fff;
    --color-text: #555;
    --color-heading: #1a1a1a;
    --color-light-gray: #f0f0f0;
    --font-main: 'MiSans', sans-serif;

    /* 响应式基础尺寸 */
    --section-padding-left: clamp(55px, 9vw, 140px);
    --section-padding-right: clamp(16px, 3vw, 40px);
    --section-padding-top: clamp(20px, 5vh, 40px);
    --cursor-radius: clamp(8px, 1.4vw, 11px);
}

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

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

body {
    background: var(--color-bg);
    background-color: #000;
    overflow: hidden;
    height: 100vh;
    height: 100dvh;
    width: 100vw;
    width: 100dvw;
    font-family: var(--font-main);
    -webkit-tap-highlight-color: transparent;
    -webkit-user-select: none;
    user-select: none;
    position: fixed;
    top: 0;
    left: 0;
    /* 自定义光标：白色线描火箭，热点对准火箭头部尖端 */
    cursor: url('../%E7%81%AB%E7%AE%AD.svg') 13 4, auto;
}
a, .clickable, .icon-btn, [role="button"], button, [contenteditable="true"], #sidebar .nav-item, #sidebar .toggle-btn {
    cursor: url('../%E7%81%AB%E7%AE%AD.svg') 13 4, pointer;
}

/* ========== 画布层 ========== */
#bg-canvas,
#ripple-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
}
#ripple-canvas {
    z-index: 2;
    opacity: 0;
    transition: opacity 0.5s ease;
}

/* ========== 主内容区 ========== */
.main-content {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    height: 100dvh;
    z-index: 50;
    overflow: hidden;
    background: transparent;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.4s ease;
    pointer-events: none;
    box-shadow: none;
}
.main-content.visible {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}
.sections-wrapper {
    position: relative;
    width: 100%;
    height: 100%;
    will-change: transform;
}
.fullpage-section {
    width: 100%;
    height: 100vh;
    height: 100dvh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--section-padding-top) var(--section-padding-right) var(--section-padding-top) var(--section-padding-left);
    background: transparent;
    border-bottom: none;
    position: relative;
    box-sizing: border-box;
    overflow: hidden;
}
.fullpage-section[data-index="0"] {
    background: transparent !important;
}
.fullpage-section[data-theme="white"] {
    background: transparent;
}
.fullpage-section[data-theme="white"] .section-text,
.fullpage-section[data-theme="white"] .section-heading,
.fullpage-section[data-theme="white"] .section-subheading,
.fullpage-section[data-theme="white"] .section-label {
    color: #fff;
}
.fullpage-section[data-theme="white"] .geo-block,
.fullpage-section[data-theme="white"] .geo-block-dark,
.fullpage-section[data-theme="white"] .card-item {
    background: #fff;
    color: #000;
}
.fullpage-section[data-theme="white"] .geo-block-outline,
.fullpage-section[data-theme="white"] .accent-line {
    border-color: #fff;
    background: #fff;
}
.fullpage-section[data-theme="white"] .card-item .card-label {
    color: #666;
}

.section-inner {
    width: 100%;
    max-width: min(900px, 85vw);
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}
.section-heading {
    font-size: clamp(24px, 5.5vw, 56px);
    font-weight: 700;
    color: #fff;
    letter-spacing: clamp(2px, 0.5vw, 4px);
    line-height: 1.15;
    margin-bottom: clamp(10px, 2vh, 16px);
}
.section-subheading {
    font-size: clamp(11px, 1.8vw, 16px);
    font-weight: 300;
    color: rgba(255, 255, 255, 0.7);
    letter-spacing: clamp(1px, 0.4vw, 3px);
    margin-bottom: clamp(16px, 3vh, 30px);
    text-transform: uppercase;
}
.section-text {
    font-size: clamp(12px, 1.6vw, 16px);
    font-weight: 300;
    color: rgba(255, 255, 255, 0.85);
    line-height: 1.7;
    letter-spacing: clamp(0.5px, 0.2vw, 1.5px);
    max-width: min(600px, 80vw);
    text-align: justify;
    text-justify: inter-ideograph;
}
.section-label {
    font-size: clamp(8px, 1.1vw, 10px);
    font-weight: 500;
    letter-spacing: clamp(3px, 0.6vw, 5px);
    color: rgba(255, 255, 255, 0.5);
    text-transform: uppercase;
    margin-bottom: clamp(6px, 1vh, 10px);
}
.accent-line {
    width: clamp(40px, 7vw, 60px);
    height: clamp(2px, 0.35vw, 3px);
    background: #fff;
    margin-bottom: clamp(16px, 2.5vh, 24px);
    border-radius: 1px;
}
.card-row {
    display: flex;
    gap: clamp(8px, 1.8vw, 20px);
    flex-wrap: wrap;
    width: 100%;
    max-width: min(700px, 80vw);
}
.card-item {
    flex: 1 1 clamp(80px, 12vw, 140px);
    min-width: clamp(70px, 10vw, 120px);
    background: #fff;
    color: #000;
    padding: clamp(14px, 2vh, 24px) clamp(10px, 1.6vw, 18px);
    font-size: clamp(10px, 1.4vw, 13px);
    font-weight: 500;
    letter-spacing: clamp(1px, 0.25vw, 2px);
    text-align: center;
    transition: transform 0.3s ease;
    cursor: url('../%E7%81%AB%E7%AE%AD.svg') 13 4, default;
    border-radius: 2px;
}
@media (hover: hover) and (pointer: fine) {
    .card-item:hover {
        transform: translateY(-6px);
    }
}
.card-item:active {
    transform: translateY(-2px);
}
.card-item .card-label {
    display: block;
    font-size: clamp(7px, 1vw, 9px);
    font-weight: 300;
    letter-spacing: clamp(2px, 0.35vw, 3px);
    color: #666;
    margin-top: clamp(3px, 0.6vh, 6px);
    text-transform: uppercase;
}

/* ========== 愿景页：在混沌中建立秩序 ========== */
.vision-inner {
    max-width: min(1240px, 94vw);
    display: grid;
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
    gap: clamp(28px, 4vw, 80px);
    align-items: center;
    left: -350px;
    top: 50px;
}
.vision-text { position: relative; z-index: 2; }
.vision-heading {
    letter-spacing: clamp(2px, 0.4vw, 5px);
    margin-bottom: clamp(8px, 1.6vh, 14px);
    width: 550px;
    font-weight: 200;
}
.vision-heading .v-accent {
    color: #ffffff;
    text-shadow: 0 0 18px rgba(249, 115, 22, 0.35);
}
.vision-en {
    font-family: 'Instrument Serif', 'MiSans', serif;
    font-style: italic;
    font-weight: 400;
    font-size: clamp(15px, 1.9vw, 26px);
    letter-spacing: clamp(0.5px, 0.2vw, 1.5px);
    color: rgba(255, 255, 255, 0.72);
    margin-bottom: clamp(16px, 3vh, 26px);
}
.vision-desc {
    max-width: 46ch;
    margin-bottom: clamp(18px, 3.4vh, 32px);
    color: rgba(255, 255, 255, 0.78);
    font-weight: 100;
}
/* 愿景页：聚光灯扫字（橙色光照随距离渐变，越近越亮） */
.spotlight { position: relative; }
.spotlight::after {
    content: attr(data-text);
    position: absolute;
    inset: 0;
    color: #F97316;
    -webkit-text-stroke: 1px rgba(249, 115, 22, 0.6);
    text-shadow: 0 0 18px rgba(249, 115, 22, 0.55);
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s ease;
    -webkit-mask-image: radial-gradient(circle 150px at var(--sx, -200px) var(--sy, -200px), #000 0%, rgba(0, 0, 0, 0.6) 45%, transparent 100%);
    mask-image: radial-gradient(circle 150px at var(--sx, -200px) var(--sy, -200px), #000 0%, rgba(0, 0, 0, 0.6) 45%, transparent 100%);
    will-change: mask-image;
}
.spotlight:hover::after { opacity: 1; }
.vision-values { display: flex; flex-direction: column; max-width: 480px; }
.vision-value {
    display: flex;
    align-items: center;
    gap: clamp(12px, 1.6vw, 20px);
    padding: clamp(11px, 1.7vh, 17px) 4px;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    cursor: url('../%E7%81%AB%E7%AE%AD.svg') 13 4, pointer;
    transition: padding-left 0.35s cubic-bezier(0.25, 0.1, 0.25, 1);
}
.vision-value:last-child { border-bottom: 1px solid rgba(255, 255, 255, 0.12); }
.vv-index {
    min-width: 30px;
    font-size: clamp(11px, 1.1vw, 14px);
    font-weight: 500;
    letter-spacing: 1px;
    color: rgba(255, 255, 255, 0.35);
    transition: color 0.3s ease;
}
.vv-body { display: flex; flex-direction: column; gap: 3px; }
.vv-cn {
    font-size: clamp(14px, 1.5vw, 18px);
    font-weight: 300;
    letter-spacing: 2px;
    color: rgba(255, 255, 255, 0.92);
    transition: color 0.3s ease;
}
.vv-en {
    font-size: clamp(8px, 0.9vw, 10px);
    font-weight: 100;
    letter-spacing: 3px;
    color: rgba(255, 255, 255, 0.4);
    text-transform: uppercase;
    transition: color 0.3s ease, letter-spacing 0.3s ease;
}
@media (hover: hover) and (pointer: fine) {
    .vision-value:hover { padding-left: 12px; }
    .vision-value:hover .vv-index { color: #F97316; }
    .vision-value:hover .vv-cn { color: #fff; }
    .vision-value:hover .vv-en { color: #F97316; letter-spacing: 4px; }
}

.vision-visual {
    position: relative;
    width: 100%;
    min-height: 300px;
    align-self: stretch;
}
.vision-visual::before,
.vision-visual::after {
    content: '';
    position: absolute;
    width: 15px;
    height: 15px;
    border-color: rgba(255, 255, 255, 0.35);
    border-style: solid;
    z-index: 2;
    pointer-events: none;
}
.vision-visual::before { top: 0; left: 0; border-width: 1px 0 0 1px; }
.vision-visual::after { bottom: 0; right: 0; border-width: 0 1px 1px 0; }
#visionCanvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    display: block;
}
.vision-stats {
    position: absolute;
    left: 8px;
    bottom: 8px;
    display: flex;
    align-items: center;
    gap: 10px;
    pointer-events: none;
    z-index: 2;
}
.vs-cn { font-size: clamp(9px, 1vw, 12px); letter-spacing: 3px; color: rgba(255, 255, 255, 0.5); }
.vs-num {
    font-family: 'Instrument Serif', serif;
    font-style: italic;
    font-size: clamp(20px, 2.2vw, 30px);
    line-height: 1;
    color: #F97316;
    min-width: 3ch;
    text-align: right;
}
.vs-bar {
    width: clamp(60px, 7vw, 110px);
    height: 2px;
    background: rgba(255, 255, 255, 0.14);
    overflow: hidden;
}
.vs-bar i {
    display: block;
    height: 100%;
    width: 0%;
    background: #F97316;
    transition: width 0.2s linear;
}

/* 愿景内容入场：进入该屏时渐显上浮 */
.vision-section.vision-ready .vision-inner > * {
    opacity: 0;
    transform: translateY(26px);
    transition: opacity 0.9s cubic-bezier(0.22, 1, 0.36, 1), transform 0.9s cubic-bezier(0.22, 1, 0.36, 1);
}
.vision-section.vision-ready.active .vision-inner > * {
    opacity: 1;
    transform: none;
}
.vision-section.vision-ready.active .vision-inner > *:nth-child(2) { transition-delay: 0.14s; }
@media (prefers-reduced-motion: reduce) {
    .vision-section.vision-ready .vision-inner > * { opacity: 1; transform: none; transition: none; }
}

/* 愿景页响应式 */
@media (max-width: 980px) {
    .vision-inner {
        grid-template-columns: 1fr;
        gap: 12px;
        align-content: start;
        left: 0;
        top: 0;
    }
    .vision-heading { width: auto; }
    .vision-desc { max-width: 62ch; }
    .vision-values { max-width: none; }
    .vision-visual { height: 32vh; min-height: 200px; }
}
@media (max-width: 600px) {
    .vision-en { font-size: 14px; letter-spacing: 0.5px; }
    .vision-value { padding: 9px 2px; gap: 10px; }
    .vision-visual { height: 28vh; min-height: 170px; }
    .vs-cn { letter-spacing: 2px; }
}


/* 业务页：以「逆熵」为序的四类能力板块；聚光灯扫字复用 .spotlight，不新增 JS */
.services-inner {
    max-width: min(1040px, 92vw);
    margin-left: auto;
    left: -200px;
    top: 50px;
    gap: clamp(26px, 4.5vh, 46px);
}
.services-head { position: relative; z-index: 2; max-width: 960px; }
.services-title {
    font-weight: 200;
    letter-spacing: clamp(2px, 0.4vw, 5px);
}
.services-title .sv-accent { color: #fff; }
.services-intro {
    max-width: 960px;
    white-space: nowrap;
    font-weight: 200;
    color: rgba(255, 255, 255, 0.72);
}
.services-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: clamp(12px, 1.8vw, 18px) clamp(24px, 3vw, 44px);
    position: relative;
    z-index: 2;
}
.service-module {
    padding: clamp(18px, 2.6vh, 30px) 0;
    border-top: 1px solid rgba(255, 255, 255, 0.16);
    transition: border-color 0.4s ease, padding-left 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}
@media (hover: hover) and (pointer: fine) {
    .service-module:hover { border-top-color: #F97316; padding-left: 16px; }
}
.sm-num {
    font-size: clamp(11px, 1vw, 14px);
    letter-spacing: 2px;
    color: rgba(255, 255, 255, 0.4);
    transition: color 0.3s ease;
}
.sm-title {
    font-size: clamp(18px, 2vw, 26px);
    font-weight: 300;
    letter-spacing: 2px;
    margin: 8px 0 6px;
    color: #fff;
}
.sm-en {
    display: block;
    font-size: clamp(8px, 0.9vw, 10px);
    font-weight: 100;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.45);
    margin-bottom: 12px;
    transition: color 0.3s ease, letter-spacing 0.3s ease;
}
.sm-desc {
    font-size: clamp(12px, 1.3vw, 14px);
    font-weight: 200;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.62);
}
@media (hover: hover) and (pointer: fine) {
    .service-module:hover .sm-num { color: #F97316; }
    .service-module:hover .sm-en { color: #F97316; letter-spacing: 4px; }
}
@media (max-width: 600px) {
    .services-inner { margin-left: 0; }
    .services-grid { grid-template-columns: 1fr; }
    .services-intro { white-space: normal; }
}


/* ========== 响应式断点 ========== */
@media (max-width: 900px) {
    :root {
        --section-padding-left: clamp(50px, 10vw, 90px);
        --section-padding-right: clamp(14px, 3vw, 30px);
    }
    .section-inner {
        max-width: 90vw;
    }
    .section-text {
        max-width: 85vw;
    }
    .card-row {
        max-width: 85vw;
    }
}

@media (max-width: 600px) {
    :root {
        --section-padding-left: 52px;
        --section-padding-right: 12px;
        --section-padding-top: 24px;
        --cursor-radius: 0px;
    }
    .fullpage-section {
        padding: 24px 12px 24px 52px;
    }
    .card-row {
        gap: 6px;
    }
    .card-item {
        flex: 1 1 75px;
        min-width: 65px;
        padding: 12px 8px;
        font-size: 10px;
        letter-spacing: 1px;
    }
    .section-heading {
        font-size: clamp(20px, 7vw, 32px);
        letter-spacing: 2px;
    }
    .section-subheading {
        font-size: clamp(10px, 2.5vw, 13px);
    }
    .section-text {
        font-size: clamp(11px, 2.2vw, 14px);
        max-width: 90vw;
    }
    .section-inner {
        max-width: 92vw;
    }
}

@media (max-width: 380px) {
    :root {
        --section-padding-left: 44px;
        --section-padding-right: 8px;
        --section-padding-top: 16px;
    }
    .fullpage-section {
        padding: 16px 8px 16px 44px;
    }
    .section-heading {
        font-size: clamp(17px, 7.5vw, 24px);
    }
    .section-text {
        font-size: 10px;
        max-width: 92vw;
    }
    .card-item {
        font-size: 9px;
        padding: 10px 6px;
    }
}

/* 大屏幕优化 */
@media (min-width: 1600px) {
    :root {
        --section-padding-left: 160px;
        --section-padding-right: 60px;
    }
    .section-inner {
        max-width: 1000px;
    }
    .section-text {
        max-width: 700px;
    }
    .card-row {
        max-width: 800px;
    }
}

/* 超高分辨率 */
@media (min-width: 2200px) {
    :root {
        --section-padding-left: 200px;
        --section-padding-right: 80px;
    }
    .section-heading {
        font-size: clamp(56px, 4vw, 72px);
    }
    .section-text {
        font-size: clamp(16px, 1.2vw, 20px);
        max-width: 800px;
    }
}

/* 横屏手机优化 */
@media (max-height: 500px) and (orientation: landscape) {
    :root {
        --section-padding-top: 10px;
    }
    .fullpage-section {
        padding-top: 8px;
        padding-bottom: 8px;
    }
    .section-heading {
        font-size: clamp(18px, 4vw, 28px);
        margin-bottom: 4px;
    }
    .section-subheading {
        margin-bottom: 8px;
        font-size: clamp(9px, 2vw, 12px);
    }
    .section-text {
        font-size: clamp(9px, 2vw, 12px);
        line-height: 1.4;
    }
    .card-item {
        padding: 8px 6px;
        font-size: 9px;
    }
}

/* ========== 子页面专用：侧边栏和内容始终可见 ========== */
body.sub-page .main-content {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

/* ========== 粒子容器 ========== */
#particle-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 51;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.6s ease;
}
#particle-container.visible {
    opacity: 1;
}
#particle-container canvas {
    display: block;
    width: 100%;
    height: 100%;
}
body.sub-page #particle-container {
    opacity: 1;
}