/* =================================================================== */
/* 1. 字体与图标库 (Typography & Icons)                                 */
/* =================================================================== */
@font-face {
  font-family: 'Material Symbols Outlined';
  font-style: normal;
  font-weight: 100 700;
  src: url(https://fonts.gstatic.com/s/materialsymbolsoutlined/v276/kJEhBvYX7BgnkSrUwT8OhrdQw4oELdPIeeII9v6oFsLjBuVY.woff2) format('woff2');
}

.material-symbols-outlined {
  font-family: 'Material Symbols Outlined';
  font-weight: normal;
  font-style: normal;
  font-size: 24px;
  line-height: 1;
  letter-spacing: normal;
  text-transform: none;
  display: inline-block;
  white-space: nowrap;
  word-wrap: normal;
  direction: ltr;
  -webkit-font-feature-settings: 'liga';
  -webkit-font-smoothing: antialiased;
}

/* =================================================================== */
/* 2. 全局变量与基础设置 (Global Variables & Reset)                     */
/* =================================================================== */
:root {
  --menu-padding-y: 0.5rem;
  --menu-padding-x: 1.0rem;
  --menu-font-size: 0.95rem;
  --submenu-btn-padding-y: 0.45rem;
  --submenu-btn-font-size: 0.9rem;
  --sub-submenu-btn-padding-y: 0.4rem;
  --sub-submenu-btn-padding-x: 1.0rem;
  --sub-submenu-btn-font-size: 0.85rem;
  --l4-btn-padding-y: 0.35rem;
  --l4-btn-padding-x: 1.0rem;
  --l4-btn-font-size: 0.8rem;
  --global-border-color: #d1d5db;
}

.btn,
.form-control,
.form-select,
.input-group,
.input-group-text,
.nav-tabs .nav-link,
.card,
.modal-content,
.dropdown-menu {
  border-radius: 0 !important;
}

/* =================================================================== */
/* 3. 层级菜单系统 (Menu System L1 - L4)                                */
/* =================================================================== */

.custom-accordion .accordion-item {
  border: none;
}

.custom-accordion .accordion-body {
  padding: 0;
}

.custom-accordion .accordion-button:focus {
  box-shadow: none;
}

/* --- Level 1: 一级菜单 --- */
.custom-accordion > .accordion-item > .accordion-header > .accordion-button {
  padding: var(--menu-padding-y) var(--menu-padding-x);
  font-size: var(--menu-font-size);
  font-weight: 600;
  color: var(--menu-text-color);
  background-color: var(--menu-bg);
  border-top: 1px solid var(--menu-border-color);
  background-image: none;
  transition: none;
}

.custom-accordion > .accordion-item:first-of-type > .accordion-header > .accordion-button {
  border-top: none;
}

.custom-accordion > .accordion-item > .accordion-header > .accordion-button:not(.collapsed) {
  background-color: var(--menu-open-bg);
}

.custom-accordion > .accordion-item > .accordion-header > .accordion-button:hover {
  background-color: var(--menu-hover-bg);
}

.custom-accordion > .accordion-item > .accordion-header > .accordion-button::after {
  content: '';
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none'%3e%3cpath d='M2 5 L8 11 L14 5' stroke='%23ffffff' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3e%3c/svg%3e");
  width: 1.0em;
  height: 1.0em;
  background-repeat: no-repeat;
  background-size: contain;
  margin-left: auto;
  transition: transform 0.2s ease-in-out;
}

.custom-accordion > .accordion-item > .accordion-header > .accordion-button:not(.collapsed)::after {
  transform: rotate(180deg);
}

/* --- Level 2: 二级菜单 --- */
.custom-accordion .accordion-body .accordion-button {
  padding: var(--submenu-btn-padding-y) 1.0rem !important;
  font-size: var(--submenu-btn-font-size) !important;
  background-color: var(--submenu-btn-bg) !important;
  color: var(--submenu-btn-text-color) !important;
  border-top: 1px solid var(--submenu-btn-border-color) !important;
  padding-left: 1.5rem !important;
  font-weight: 500;
}

.custom-accordion .accordion-body .accordion-button:hover,
.custom-accordion .accordion-body .accordion-button:not(.collapsed) {
  background-color: var(--submenu-btn-hover-bg) !important;
}

.custom-accordion .accordion-body .accordion-button::after {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none'%3e%3cpath d='M2 5 L8 11 L14 5' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3e%3c/svg%3e") !important;
  opacity: 0.9;
  transform: scale(0.9);
}

.custom-accordion .accordion-body .accordion-button:not(.collapsed)::after {
  transform: rotate(180deg) scale(0.9);
}

/* --- Level 3: 三级菜单 --- */
.submenu-container {
  margin-bottom: 0;
}

.sub-function-button {
  width: 100% !important;
  display: flex !important;
  justify-content: space-between !important;
  align-items: center;
  padding: var(--sub-submenu-btn-padding-y) var(--sub-submenu-btn-padding-x) !important;
  background-color: var(--sub-submenu-btn-bg) !important;
  border: none !important;
  border-top: 1px solid var(--sub-submenu-btn-border-color) !important;
  color: var(--sub-submenu-btn-text-color) !important;
  font-size: var(--sub-submenu-btn-font-size);
  font-weight: 500;
  padding-left: 2.2rem !important;
  min-height: 32px;
}

.sub-function-button:hover {
  background-color: var(--sub-submenu-btn-hover-bg) !important;
}

.submenu-arrow {
  font-size: 0.7em;
  transition: transform 0.2s ease-in-out;
  opacity: 0.8;
}

.sub-function-button[aria-expanded="true"] .submenu-arrow {
  transform: rotate(90deg);
}

/* --- Level 4: 四级菜单 --- */
.sub-sub-function-button {
  width: 100% !important;
  display: flex !important;
  justify-content: space-between !important;
  align-items: center;
  padding: var(--l4-btn-padding-y) var(--l4-btn-padding-x) !important;
  background-color: var(--l4-btn-bg) !important;
  border: none !important;
  border-top: 1px solid var(--l4-btn-border-color) !important;
  color: var(--l4-btn-text-color) !important;
  font-size: var(--l4-btn-font-size);
  font-weight: 500;
  padding-left: 2.9rem !important;
  min-height: 28px;
}

.sub-sub-function-button:hover {
  background-color: var(--l4-btn-hover-bg) !important;
}

/* =================================================================== */
/* 4. 布局结构 (Layout & Components)                                    */
/* =================================================================== */
.app-container {
  height: 100vh;
  display: flex;
  flex-direction: column;
  padding: 0;
}

.app-container > .row {
  flex-grow: 1;
  min-height: 0;
  margin: 0;
}

.main-card {
  height: 100% !important;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--global-border-color);
  background-color: #ffffff;
  box-shadow: none;
  border-radius: 0 !important;
  margin-bottom: 0 !important;
}

.main-card .card-body {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  padding-bottom: 0 !important;
}

.main-card-header {
  background-color: var(--menu-bg);
  color: var(--menu-text-color);
  padding: var(--menu-padding-y) var(--menu-padding-x);
  border-bottom: 1px solid var(--menu-border-color);
  border-radius: 0 !important;
}

.card-title-text {
  font-size: 1rem;
  font-weight: bold;
  margin: 0;
  line-height: 1.2;
  text-align: center;
}

.control-panel {
  padding: 0.5rem !important;
  background-color: #fff;
}

.upload-area {
  border-width: 2px;
  border-style: dashed;
  border-color: var(--global-border-color);
  text-align: center;
  cursor: pointer;
  background-color: #f8f9fa;
  color: #3b5a9d;
  transition: background-color 0.2s;
  height: 60px;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 10px;
}

.upload-area:hover {
  background-color: #e9ecef;
}

/* =================================================================== */
/* 5. 选项卡 (Tabs)                                                    */
/* =================================================================== */
.main-content-tabs-container {
  background-color: #f8f9fa !important;
  border-bottom: 1px solid var(--global-border-color, #dee2e6) !important;
  padding: 0 0.0rem !important;
  height: 29px !important;
}

.main-content-tabs-container .nav-tabs {
  border-bottom: none;
}

.tabs-fill-width > .nav-tabs {
  display: flex;
  width: 100%;
  height: 100%;
}

.tabs-fill-width .nav-item {
  flex-grow: 1;
  text-align: center;
  display: flex;
}

.tabs-fill-width .nav-link {
  width: 100%;
  height: 100% !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  border: 1px solid transparent !important;
  border-bottom: none !important;
}

.tabs-fill-width .nav-link.active {
  background-color: #E9ECEF !important;
  color: #000000 !important;
  font-weight: 600;
  border-color: #DEE2E6 !important;
}

.tabs-fill-width .nav-link:not(.active):hover {
  background-color: #DEE2E6;
  color: #000000;
}

.nav-tabs-sm .nav-link {
  padding: 0.10rem 0.75rem !important;
  font-size: 0.875rem;
  color: #000000;
  background-color: transparent;
  border: none !important;
  opacity: 0.7;
  transition: all 0.2s ease-in-out;
  white-space: nowrap;
}

.nav-tabs-sm .nav-link:hover {
  color: var(--menu-text-color);
  opacity: 0.85;
}

/* =================================================================== */
/* 6. 工具栏与控制台 (Toolbar & Console)                                */
/* =================================================================== */
.viewer-toolbar {
  background-color: var(--menu-bg);
  color: var(--menu-text-color);
  border-bottom: 1px solid var(--menu-border-color);
  height: 29px;
  padding: 0 var(--menu-padding-x);
  font-size: var(--menu-font-size);
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
  transition: background-color 0.2s ease-in-out;
}

.viewer-second-toolbar {
  height: 31px;
  padding: 0 0.0rem;
  background-color: #f8f9fa;
  border-bottom: 1px solid var(--global-border-color, #dee2e6);
}

.icon-button {
  width: 29px !important;
  height: 29px !important;
  padding: 0 !important;
  display: flex !important;
  align-items: center;
  justify-content: center;
  background-color: transparent !important;
  border: none !important;
  box-shadow: none !important;
}

.icon-button-toolbar {
  width: 29px !important;
  height: 29px !important;
  padding: 0 !important;
  display: flex !important;
  align-items: center;
  justify-content: center;
  background-color: #ffffff !important;
  border: 1px solid #ced4da !important;
  box-shadow: none !important;
}

.icon-button-toolbar:hover {
  background-color: #e9ecef !important;
}

.icon-button-toolbar-borderless {
  background-color: transparent !important;
  border: none !important;
  box-shadow: none !important;
  transition: background-color 0.2s ease-in-out;
}

.icon-button:hover,
.icon-button-toolbar-borderless:hover {
  background-color: rgba(0, 0, 0, 0.1) !important;
}

.icon-button-toolbar-borderless:disabled {
  opacity: 0.35;
}

.viewer-output-container {
  height: 72vh;
  min-height: 400px;
}

#viewer-sticky-container {
  flex-grow: 1;
  height: 0;
  min-height: 0;
}

#console-scroll-wrapper {
  max-height: none !important;
  flex-grow: 0;
  flex-shrink: 0;
  margin-bottom: 0;
  border-bottom: none;
}

.console-header {
  color: var(--menu-text-color);
  background-color: var(--menu-bg);
  padding: 0.4rem 1rem;
  margin-bottom: 0;
  font-size: 0.9rem;
  font-weight: 500;
  border-top: 1px solid var(--menu-border-color);
}

.console-output-area {
  height: 212px;
  min-height: 150px;
  overflow-y: auto;
  background-color: #f8f9fa;
  padding: 10px;
  font-family: 'Courier New', monospace;
  font-size: 15px;
}

/* =================================================================== */
/* 7. 亮色主题定义 (Light Themes)                                       */
/* =================================================================== */

:root, [data-theme='twilight-blue'] {
  --lattice-ui-color: #000000;
  /* L1: 主菜单 */
  --menu-bg: #3b5a9d;
  --menu-hover-bg: #2f487d;
  --menu-open-bg: #283d6a;
  --menu-text-color: #ffffff;
  --menu-border-color: #5d7bc7;

  /* L2: 分类菜单 */
  --submenu-btn-bg: #4a6db2;
  --submenu-btn-hover-bg: #405c98;
  --submenu-btn-text-color: #ffffff;
  --submenu-btn-border-color: #6c88c0;

  /* L3: 具体功能按钮 - 背景已加深 */
  --sub-submenu-btn-bg: #5678bb; /* 原为 #6384c5，现加深提升白字对比度 */
  --sub-submenu-btn-hover-bg: #4a6db2;
  --sub-submenu-btn-text-color: #ffffff;
  --sub-submenu-btn-border-color: #7a98cf;

  /* L4: 四级菜单 - 浅底深字 */
  --l4-btn-bg: #e4ecf7; 
  --l4-btn-hover-bg: #5678bb;
  --l4-btn-text-color: #283d6a; /* 提取 L1 的深色 */
  --l4-btn-border-color: #d1dceb;
}

/* 
 * Graphite Gray (石墨灰)
 */
[data-theme='graphite-gray'] {
  --lattice-ui-color: #000000;
  --menu-bg: #4A6E9B;
  --menu-hover-bg: #5A7EAA;
  --menu-open-bg: #3E5E85;
  --menu-text-color: #ffffff;
  --menu-border-color: #7C98B8;
  
  --submenu-btn-bg: #3E434B;
  --submenu-btn-hover-bg: #4F555D;
  --submenu-btn-text-color: #ffffff;
  --submenu-btn-border-color: #5A6268;

  /* L3 背景加深 */
  --sub-submenu-btn-bg: #4a515a; /* 原为 #545b66 */
  --sub-submenu-btn-hover-bg: #3E434B;
  --sub-submenu-btn-text-color: #ffffff;
  --sub-submenu-btn-border-color: #626a74;

  /* L4 */
  --l4-btn-bg: #e9ebec; 
  --l4-btn-hover-bg: #4a515a;
  --l4-btn-text-color: #3E434B;
  --l4-btn-border-color: #d8dadd;
}

/* 
 * Starlight Blue (星光蓝)
 */
[data-theme='starlight-blue'] {
  --lattice-ui-color: #000000;
  --global-border-color: #d1d5db;
  --menu-bg: #3b5a9d;
  --menu-hover-bg: #2f487d;
  --menu-open-bg: #283d6a;
  --menu-text-color: #ffffff;
  --menu-border-color: #5d7bc7;
  --accordion-body-bg: #ffffff;

  --submenu-btn-bg: #4285f4;
  --submenu-btn-hover-bg: #3367d6;
  --submenu-btn-text-color: #ffffff;
  --submenu-btn-border-color: #5d7bc7;

  /* L3 背景加深 */
  --sub-submenu-btn-bg: #5a94f6; /* 原为 #6ba0f7 */
  --sub-submenu-btn-hover-bg: #4285f4;
  --sub-submenu-btn-text-color: #000000;
  --sub-submenu-btn-border-color: #8bb6fa;

  /* L4 */
  --l4-btn-bg: #e8f0fe; 
  --l4-btn-hover-bg: #5a94f6;
  --l4-btn-text-color: #283d6a;
  --l4-btn-border-color: #d2e3fc;
}

[data-theme='starlight-blue'] .custom-accordion .accordion-body {
    background-color: var(--accordion-body-bg, #ffffff);
}

/* 
 * Forest Green (森林绿) - 整体深邃版
 */
[data-theme='forest-green'] {
  --lattice-ui-color: #000000;
  /* =========================================================
      深色区域 (L1, L2): 沉浸感深绿 + 纯白文字
      ========================================================= */
  /* L1: 主菜单 */
  --menu-bg: #008063;
  --menu-hover-bg: #006b53;
  --menu-open-bg: #005945;
  --menu-text-color: #ffffff;
  --menu-border-color: #009977;

  /* L2: 二级菜单 */
  --submenu-btn-bg: #219b7d;
  --submenu-btn-hover-bg: #188569;
  --submenu-btn-text-color: #ffffff;
  --submenu-btn-border-color: #36b595;

  /* =========================================================
      浅色区域 (L3, L4): 护眼浅绿 + 深墨绿文字 (极高对比度)
      ========================================================= */
  /* L3: 三级菜单 - 背景显著提亮，文字设为深色 */
  --sub-submenu-btn-bg: #bce6d9;     /* 柔和的浅青瓷绿 */
  --sub-submenu-btn-hover-bg: #a5d9c8;
  --sub-submenu-btn-text-color: #004d3b; /* 极深墨绿色 */
  --sub-submenu-btn-border-color: #90d2be;

  /* L4: 四级菜单 - 背景最浅，文字最深 */
  --l4-btn-bg: #eafaf5;              /* 极浅的薄荷白 */
  --l4-btn-hover-bg: #d4f2e8;
  --l4-btn-text-color: #003326;      /* 近乎黑色的暗绿 */
  --l4-btn-border-color: #ccebe1;
}

/* 
 * Sakura Pink (樱花粉)
 */
[data-theme='sakura-pink'] {
  --lattice-ui-color: #000000;
  --menu-bg: #d87093;
  --menu-hover-bg: #c76386;
  --menu-open-bg: #b35878;
  --menu-text-color: #ffffff;
  --menu-border-color: #e68aa8;

  --submenu-btn-bg: #db7093;
  --submenu-btn-hover-bg: #c76386;
  --submenu-btn-text-color: #ffffff;
  --submenu-btn-border-color: #e68aa8;

  /* L3 背景加深 */
  --sub-submenu-btn-bg: #e082a2; /* 原为 #e89eb6 */
  --sub-submenu-btn-hover-bg: #db7093;
  --sub-submenu-btn-text-color: #ffffff;
  --sub-submenu-btn-border-color: #eeaac0;

  /* L4 */
  --l4-btn-bg: #fdf2f6; 
  --l4-btn-hover-bg: #e082a2;
  --l4-btn-text-color: #b35878;
  --l4-btn-border-color: #f9dbe6;
}

/* 
 * Jade Green (玉色) 
 */
[data-theme='jade-green'] {
  --lattice-ui-color: #000000;
  --menu-bg: #2C756C; 
  --menu-hover-bg: #224D48;
  --menu-open-bg: #224D48;
  --menu-text-color: #F3FAF8;
  --menu-border-color: #53AE9F;

  --submenu-btn-bg: #53AE9F;
  --submenu-btn-hover-bg: #2C756C;
  --submenu-btn-text-color: #F3FAF8;
  --submenu-btn-border-color: #AEE1D5;

  /* L3 调整为可容纳白字的深色 */
  --sub-submenu-btn-bg: #63baac;
  --sub-submenu-btn-hover-bg: #53AE9F;
  --sub-submenu-btn-text-color: #000000; 
  --sub-submenu-btn-border-color: #8bd2c6;

  /* L4 - 原本极浅的 L3 被下放作为 L4，物尽其用 */
  --l4-btn-bg: #AEE1D5; 
  --l4-btn-hover-bg: #63baac;
  --l4-btn-text-color: #224D48;
  --l4-btn-border-color: #d2ede5;
}

/* 
 * Purple Begonia (紫棠) 
 */
[data-theme='purple-begonia'] {
  --lattice-ui-color: #000000;
  --menu-bg: #7A1572;
  --menu-hover-bg: #56004F;
  --menu-open-bg: #56004F;
  --menu-text-color: #FFF3FF;
  --menu-border-color: #95138D;

  --submenu-btn-bg: #95138D;
  --submenu-btn-hover-bg: #7A1572;
  --submenu-btn-text-color: #FFF3FF;
  --submenu-btn-border-color: #B714AF;

  /* L3 加深 */
  --sub-submenu-btn-bg: #A814A2;
  --sub-submenu-btn-hover-bg: #95138D;
  --sub-submenu-btn-text-color: #FFF3FF;
  --sub-submenu-btn-border-color: #c93dc4;

  /* L4 */
  --l4-btn-bg: #fcebfa; 
  --l4-btn-hover-bg: #A814A2;
  --l4-btn-text-color: #56004F;
  --l4-btn-border-color: #f4ccf1;
}

/* 
 * Lilac Blue (雪青) 
 */
[data-theme='lilac-blue'] {
  --lattice-ui-color: #000000;
  --menu-bg: #5D4196;
  --menu-hover-bg: #4D367C;
  --menu-open-bg: #4D367C;
  --menu-text-color: #F7F6FC;
  --menu-border-color: #6F4DB4;

  --submenu-btn-bg: #6F4DB4;
  --submenu-btn-hover-bg: #5D4196;
  --submenu-btn-text-color: #F7F6FC;
  --submenu-btn-border-color: #8060C7;

  /* L3 加深 */
  --sub-submenu-btn-bg: #7a58c2;
  --sub-submenu-btn-hover-bg: #6F4DB4;
  --sub-submenu-btn-text-color: #F7F6FC;
  --sub-submenu-btn-border-color: #9b81d8;

  /* L4 */
  --l4-btn-bg: #f0ebf8; 
  --l4-btn-hover-bg: #7a58c2;
  --l4-btn-text-color: #4D367C;
  --l4-btn-border-color: #ded4f0;
}

/* 
 * Cyan Gradient (青蓝) 
 */
[data-theme='cyan-gradient'] {
  --lattice-ui-color: #000000;
  --menu-bg: #166E74;
  --menu-hover-bg: #14464A;
  --menu-open-bg: #14464A;
  --menu-text-color: #C2FEFA;
  --menu-border-color: #22BCC0;

  --submenu-btn-bg: #22BCC0;
  --submenu-btn-hover-bg: #166E74;
  --submenu-btn-text-color: #14464A; 
  --submenu-btn-border-color: #53F4EF;

  /* L3 调整为更平衡的中间色 */
  --sub-submenu-btn-bg: #28ccd0;
  --sub-submenu-btn-hover-bg: #22BCC0;
  --sub-submenu-btn-text-color: #14464A;
  --sub-submenu-btn-border-color: #5be6ea;

  /* L4 - 原本极浅的 L3 被下放作为 L4 */
  --l4-btn-bg: #53F4EF; 
  --l4-btn-hover-bg: #28ccd0;
  --l4-btn-text-color: #14464A;
  --l4-btn-border-color: #bff8f6;
}

/* 
 * Royal Blue (宝蓝) 
 */
[data-theme='royal-blue'] {
  --lattice-ui-color: #000000;
  --menu-bg: #0540F6;
  --menu-hover-bg: #133790;
  --menu-open-bg: #133790;
  --menu-text-color: #D0EDFE;
  --menu-border-color: #2D74F7;

  --submenu-btn-bg: #2D74F7;
  --submenu-btn-hover-bg: #0540F6;
  --submenu-btn-text-color: #D0EDFE;
  --submenu-btn-border-color: #7DC3FB;

  /* L3 加深 */
  --sub-submenu-btn-bg: #4684f8;
  --sub-submenu-btn-hover-bg: #2D74F7;
  --sub-submenu-btn-text-color: #ffffff;
  --sub-submenu-btn-border-color: #8ab6fa;

  /* L4 - 原本极浅的 L3 被下放作为 L4 */
  --l4-btn-bg: #7DC3FB; 
  --l4-btn-hover-bg: #4684f8;
  --l4-btn-text-color: #133790;
  --l4-btn-border-color: #cce6fe;
}

/* 
 * Misty Blue (暮蓝) 
 */
[data-theme='misty-blue'] {
  --lattice-ui-color: #000000;
  --menu-bg: #48528B;
  --menu-hover-bg: #252941;
  --menu-open-bg: #252941;
  --menu-text-color: #D2E0F3;
  --menu-border-color: #6775C4;

  --submenu-btn-bg: #6775C4;
  --submenu-btn-hover-bg: #48528B;
  --submenu-btn-text-color: #D2E0F3;
  --submenu-btn-border-color: #9AAEDF;

  /* L3 加深 */
  --sub-submenu-btn-bg: #7582d0;
  --sub-submenu-btn-hover-bg: #6775C4;
  --sub-submenu-btn-text-color: #ffffff;
  --sub-submenu-btn-border-color: #a4afe3;

  /* L4 - 原本极浅的 L3 被下放作为 L4 */
  --l4-btn-bg: #9AAEDF; 
  --l4-btn-hover-bg: #7582d0;
  --l4-btn-text-color: #252941;
  --l4-btn-border-color: #dae2f2;
}

/* 
 * Ocean Blue (海蓝) 
 */
[data-theme='ocean-blue'] {
  --lattice-ui-color: #000000;
  --menu-bg: #356994;
  --menu-hover-bg: #284864;
  --menu-open-bg: #284864;
  --menu-text-color: #F4F7FB;
  --menu-border-color: #6A9FC6;

  --submenu-btn-bg: #6A9FC6;
  --submenu-btn-hover-bg: #356994;
  --submenu-btn-text-color: #284864;
  --submenu-btn-border-color: #CBDDEC;

  /* L3 加深 */
  --sub-submenu-btn-bg: #7baed4;
  --sub-submenu-btn-hover-bg: #6A9FC6;
  --sub-submenu-btn-text-color: #ffffff;
  --sub-submenu-btn-border-color: #abcce5;

  /* L4 - 原本极浅的 L3 被下放作为 L4 */
  --l4-btn-bg: #CBDDEC; 
  --l4-btn-hover-bg: #7baed4;
  --l4-btn-text-color: #284864;
  --l4-btn-border-color: #e1ecf4;
}

/* =================================================================== */
/* 8. 交互组件样式 (UI Elements & Popovers)                             */
/* =================================================================== */
.compact-popover-body {
  padding: 0.5rem 0.8rem !important;
}

.compact-radio-items .form-check {
  margin-bottom: 0.2rem;
  padding-left: 1.5em;
}

.compact-radio-items .form-check:last-child {
  margin-bottom: 0;
}

.compact-radio-items .form-check-label {
  font-size: 0.85rem;
  padding-top: 0.1rem;
}

.compact-radio-items .form-check-input {
  margin-top: 0.25rem;
}

.color-swatch-selected {
  box-shadow: 0 0 0 1px black !important;
  transform: scale(1.1);
  transition: transform 0.2s ease-in-out, box-shadow 0.2s ease-in-out;
}

.color-swatch-sm {
  width: 28px !important;
  height: 28px !important;
  padding: 0 !important;
  cursor: default !important;
  border: 1px solid #ced4da;
}

.dbc_select_sm_proxy .Select-control {
  min-height: 31px;
  height: 31px;
}

.dbc_select_sm_proxy .Select-value,
.dbc_select_sm_proxy .Select-placeholder {
  line-height: 31px !important;
}

.dbc_select_sm_proxy .Select-input > input {
  padding: 0.25rem 0.5rem;
  height: auto;
}

.input-group-checklist-container {
  background-color: var(--bs-body-bg, #fff) !important;
  padding-top: 0 !important;
  padding-bottom: 0 !important;
  width: 100%;
}

.input-group-sm > .form-control {
  height: 31px;
}

.fixed-label-width {
  width: 80px !important;
  flex-shrink: 0;
}

.fixed-label-width-scene {
  width: 85px !important;
  flex-shrink: 0;
}

.popup-menu {
  display: none;
  position: absolute;
  top: 0;
  right: 32px;
  background-color: white;
  border: 1px solid #d1d5db;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  width: 200px;
  z-index: 1001;
  overflow: hidden;
}

.popup-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 12px;
  background-color: #f8f9fa;
  border-bottom: 1px solid #e5e7eb;
}

.popup-header span {
  font-weight: bold;
  font-size: 13px;
  color: #333;
}

.close-popup-btn {
  cursor: pointer;
  font-size: 18px;
  line-height: 1;
  color: #9ca3af;
  transition: color 0.2s;
}

.close-popup-btn:hover {
  color: #ef4444;
}

.popup-body {
  padding: 12px;
}

.about-panel dl {
  margin-bottom: 0.5rem;
}

.about-panel dt {
  font-weight: bold;
  color: #495057;
  float: left;
  width: 90px;
  margin-right: 10px;
  clear: left;
}

.about-panel dd {
  margin-left: 95px;
  margin-bottom: 0.5rem;
  text-align: justify;
}

.about-panel .contact-info {
  margin-top: 0.75rem;
  text-align: center;
}

/* =================================================================== */
/* 9. 暗黑模式全局覆盖 (Geek Dark Theme - Gemini Style)                 */
/* =================================================================== */
[data-theme='geek-dark'] {
  --lattice-ui-color: #ffffff; /* 新增：暗黑模式下为白色 */
  --global-bg-color: #131314;
  --global-panel-bg: #1e1f20;
  --global-border-color: #444746;
  --global-text-color: #e3e3e3;
  --global-text-muted: #c4c7c5;
  --menu-bg: #1e1f20;
  --menu-hover-bg: #282a2d;
  --menu-open-bg: #282a2d;
  --menu-text-color: #ffffff;
  --menu-border-color: #333537;
  --submenu-btn-bg: #282a2d;
  --submenu-btn-hover-bg: #333537;
  --submenu-btn-text-color: #e3e3e3;
  --submenu-btn-border-color: #444746;
  --sub-submenu-btn-bg: #333537;
  --sub-submenu-btn-hover-bg: #3c3e41;
  --sub-submenu-btn-text-color: #e3e3e3;
  --sub-submenu-btn-border-color: #444746;
  --l4-btn-bg: #1e1f20;
  --l4-btn-hover-bg: #333537;
  --l4-btn-text-color: #c4c7c5;
  --l4-btn-border-color: #444746;
}

[data-theme='geek-dark'] body,
[data-theme='geek-dark'] .app-container,
[data-theme='geek-dark'] .main-card,
[data-theme='geek-dark'] .control-panel,
[data-theme='geek-dark'] .viewer-second-toolbar {
  background-color: var(--global-bg-color) !important;
  color: var(--global-text-color) !important;
  border-color: var(--global-border-color) !important;
}

[data-theme='geek-dark'] .upload-area {
  background-color: var(--global-panel-bg) !important;
  color: var(--global-text-color) !important;
  border-color: var(--global-border-color) !important;
}

[data-theme='geek-dark'] .upload-area:hover {
  background-color: #21262d !important;
  border-color: #58a6ff !important;
}

[data-theme='geek-dark'] .form-control,
[data-theme='geek-dark'] .form-select,
[data-theme='geek-dark'] .input-group-text,
[data-theme='geek-dark'] .input-group-checklist-container,
[data-theme='geek-dark'] .form-control-slider-container {
  background-color: var(--global-panel-bg) !important;
  color: var(--global-text-color) !important;
  border-color: var(--global-border-color) !important;
}

[data-theme='geek-dark'] .form-control:focus,
[data-theme='geek-dark'] .form-select:focus {
  background-color: #21262D !important;
  color: #FFFFFF !important;
  border-color: #58A6FF !important;
  box-shadow: 0 0 0 0.2rem rgba(88, 166, 255, 0.25) !important;
}

[data-theme='geek-dark'] .console-output-area {
  background-color: #0e0e0e !important;
  color: #e3e3e3 !important;
  border-top: 1px solid var(--global-border-color) !important;
}

[data-theme='geek-dark'] .tabs-fill-width .nav-link {
  color: var(--global-text-muted) !important;
  border-color: transparent !important;
}

[data-theme='geek-dark'] .tabs-fill-width .nav-link.active {
  background-color: #333537 !important;
  color: #8ab4f8 !important;
  border-color: var(--global-border-color) !important;
}

[data-theme='geek-dark'] .tabs-fill-width .nav-link:not(.active):hover {
  background-color: var(--menu-bg) !important;
  color: var(--global-text-color) !important;
}

[data-theme='geek-dark'] .icon-button-toolbar {
  background-color: var(--global-panel-bg) !important;
  border-color: var(--global-border-color) !important;
}

[data-theme='geek-dark'] .icon-button-toolbar:hover,
[data-theme='geek-dark'] .icon-button:hover,
[data-theme='geek-dark'] .icon-button-toolbar-borderless:hover {
  background-color: #30363D !important;
}

[data-theme='geek-dark'] .icon-button img,
[data-theme='geek-dark'] .icon-button-toolbar img,
[data-theme='geek-dark'] .icon-button-toolbar-borderless img {
  filter: invert(1) brightness(0.9) !important;
}

[data-theme='geek-dark'] .main-content-tabs-container {
  background-color: #050505 !important;
}

[data-theme='geek-dark'] .tabs-fill-width .nav-link {
  background-color: #050505 !important;
  color: #ffffff !important;
  border-color: var(--global-border-color) !important;
  opacity: 0.6;
}

[data-theme='geek-dark'] .tabs-fill-width .nav-link.active {
  background-color: var(--global-panel-bg) !important;
  color: #ffffff !important;
  opacity: 1;
  border-bottom-color: transparent !important;
}
/* --- 暗黑模式模态框 (Modal) 覆写 --- */
[data-theme='geek-dark'] .modal-content {
    background-color: var(--global-panel-bg) !important;
    color: var(--global-text-color) !important;
    border: 1px solid var(--global-border-color) !important;
}

[data-theme='geek-dark'] .modal-header {
    background-color: var(--menu-bg) !important;
    border-bottom: 1px solid var(--global-border-color) !important;
    color: var(--global-text-color) !important;
}

[data-theme='geek-dark'] .modal-header .btn-close {
    filter: invert(1) grayscale(100%) brightness(200%);
}

[data-theme='geek-dark'] .modal-body {
    background-color: var(--global-panel-bg) !important;
}

[data-theme='geek-dark'] .modal-footer {
    border-top: 1px solid var(--global-border-color) !important;
}
/* =================================================================== */
/* 10. 滑块组件 (RC Slider System)                                     */
/* =================================================================== */
.rc-slider-handle {
  border-radius: 3px !important;
  width: 14px !important;
  height: 14px !important;
  margin-top: -6px !important;
  background: linear-gradient(180deg, #ffffff 0%, #e8e8e9 20%, #d1d3d6 80%, #babbc0 100%) !important;
  border: 1px solid #9fa1a6 !important;
  border-bottom-color: #888a8f !important;
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.9),
              inset 0 -1px 1px rgba(0, 0, 0, 0.05),
              0 2px 4px rgba(0, 0, 0, 0.15) !important;
  transition: transform 0.15s cubic-bezier(0.2, 0, 0.2, 1),
              box-shadow 0.15s ease,
              background 0.15s ease !important;
  cursor: grab !important;
}

.rc-slider-handle:hover {
  background: linear-gradient(180deg, #ffffff 0%, #f2f2f3 20%, #dedfe2 80%, #cacbcc 100%) !important;
  border-color: #888a8f !important;
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, 1),
              inset 0 -1px 1px rgba(0, 0, 0, 0.08),
              0 3px 6px rgba(0, 0, 0, 0.2) !important;
  transform: scale(1.05);
}

.rc-slider-handle:active,
.rc-slider-handle-dragging,
.rc-slider-handle:focus {
  background: linear-gradient(180deg, #c4c5c9 0%, #d1d3d6 20%, #e8e8e9 100%) !important;
  border-color: #888a8f !important;
  border-top-color: #75777c !important;
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.15),
              0 1px 0px rgba(255, 255, 255, 0.7) !important;
  transform: scale(0.95);
  cursor: grabbing !important;
}

[data-theme='geek-dark'] .rc-slider-handle {
  /* 手柄背景：改为极浅灰色/白色，产生强对比 */
  background: #e3e3e3 !important;
  /* 边框：改为亮白色 */
  border: 1px solid #ffffff !important;
  /* 阴影：增加一层淡蓝色的外发光 */
  box-shadow: 0 0 6px rgba(138, 180, 248, 0.5) !important;
  opacity: 1 !important;
}

[data-theme='geek-dark'] .rc-slider-handle:hover,
[data-theme='geek-dark'] .rc-slider-handle:active,
[data-theme='geek-dark'] .rc-slider-handle-dragging {
  /* 悬停或拖拽时变为纯白并放大 */
  background: #ffffff !important;
  transform: scale(1.15);
  box-shadow: 0 0 10px rgba(138, 180, 248, 0.8) !important;
}

[data-theme='geek-dark'] .rc-slider-track {
  /* 已选进度的轨道：改为亮蓝色 (Google Blue) */
  background-color: #8ab4f8 !important;
}

[data-theme='geek-dark'] .rc-slider-rail {
  /* 未选进度的轨道背景：稍微提亮，使其可见 */
  background-color: #3c4043 !important;
}

[data-theme='geek-dark'] .rc-slider-step {
  /* 刻度点（如果有的话） */
  background: transparent;
}

.form-control-slider-container {
  height: 31px !important;
  padding: 0 !important;
  margin-bottom: 0 !important;
  position: relative;
  overflow: visible !important;
  border: 1px solid #dee2e6 !important;
  background-color: #fff;
}

.form-control-slider-container .rc-slider {
  padding-top: 13px !important;
  padding-bottom: 0 !important;
  margin-left: 0px !important;
  margin-right: 0px !important;
  height: 100% !important;
}

.rc-slider-tooltip-inner {
  background-color: #ffffff !important;
  border: 1px solid #d4d4d4 !important;
  border-radius: 2px !important;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05) !important;
  padding: 2px 2px !important;
}

.rc-slider-tooltip-placement-bottom .rc-slider-tooltip-inner {
  transform: translateY(-5px) !important;
  color: #666666 !important;
  font-size: 12px !important;
  font-weight: normal !important;
}

.rc-slider-tooltip-arrow {
  display: none !important;
}

[data-theme='geek-dark'] .rc-slider-tooltip-inner {
  background-color: #2D333B !important;
  color: #E1E4E8 !important;
  border-color: #444C56 !important;
}

/* =================================================================== */
/* 11. 导出结构对话框宽度精准调整 (Export Structure Modal)               */
/* =================================================================== */

/* 核心：修改对话框容器宽度 */
.custom-modal-width .modal-dialog {
    /* 必须使用 px 单位，!important 确保覆盖 Bootstrap 默认值 */
    max-width: 260px !important; 
    width: 260px !important;
    
    /* 确保在屏幕中间 */
    margin-left: auto !important;
    margin-right: auto !important;
}

/* 优化：减小内边距，使缩窄后的界面不拥挤 */
.custom-modal-width .modal-body {
    padding: 10px 15px !important;
}

/* 优化：微调标签宽度 (Format/Type) 从 80px 减小到 65px，留出更多空间给下拉框 */
.custom-modal-width .fixed-label-width {
    width: 65px !important;
    font-size: 0.85rem;
}